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Showing posts sorted by relevance for query measuring at bowls. Sort by date Show all posts
Showing posts sorted by relevance for query measuring at bowls. Sort by date Show all posts

Wednesday, March 26, 2014

Measuring at Lawn Bowls


As a novice, like myself, becomes better (and better known) at his home club (s)he will be drawn in fun roll-ups to play positions other than lead. If you are asked to be vice-skip you will need to be able to measure properly. Besides a measure and chalk, always carry a small towel. It is not only good for drying/cleaning bowls, but should also be used when measuring for more than one point. Lay the towel on the ground and place each scoring bowl onto the towel. This avoids confusion and ensures that a bowl already counted and set aside is not accidentally measured again. Get into the habit of doing this all the time, not just in tournaments. Bowls that are not scoring but are just in the way can be taken aside well away from the scoring zone.


Either vice can ask for a measure, and their opposite number cannot refuse the request. Some vices are not above exerting a little psychological pressure at this stage, by making it very clear to their opposite number, particularly if (s)he has not been bowling for many years, that there is absolutely no need for a measure and it is blindingly obvious which bowl is the winner. On the other hand, it is not unknown, when a measure has been insisted upon, the “bully” is to be proved wrong!


Measuring Tapes


Before beginning measuring, place wedges under any bowls that will be considered in the count that look as if they could fall over. It is important that they do not fall until the measuring is complete. Wedges can be made from the corks of empty wine bottles. Preparing wedges can be fun, particularly the drinking!


There are two types of measurement devices in general use. String measures are generally preferred in competitive play, but some players regret this trend because it is far easier to cheat with a string measure than with a metal tape. Make sure that the distance measured between the jack and the bowl is the shortest possible. This means that the measure must be placed in a dead straight line, and that the tip of the tape touches the bowl at the point closest to the jack. A player can cheat at this stage by measuring the two bowls at different points, such that one of them is measured too low, or to one side (or see above wrt misaligning the tape case). It only takes a millimeter of difference to change which bowl is closer, and a cheating player can find that millimeter very easily! When you are not the measurer, be a careful observer. If it is crucial, ask to perform the measurement again yourself.

It is sometimes necessary to repeat the measuring procedure, and the other vice may wish to check the result for himself/herself. The two players must always agree on the result, which is usually signaled by the conceding player pushing away the opposing bowl that is closer, followed by the winning side picking up the jack.


Calipers can be used when the bowl and jack are too close to get the measuring device between the bowls. Good calipers have a screw adjustment and can be purchased from any specialty bowls shop online, such as Shotbowl.


http://www.shotbowl.co.uk/Calipers.aspx


With calipers, try not to get the measure too accurate. Nine times out of ten, you don't need to touch both objects. You are just trying, using the calipers, to make obvious any difference between the two gaps. This can be done while still avoiding contact of the calipers with the jack. Always use the bowl that is heavier as your stable object.  You can run one leg of the caliper down the bowl safely without it moving, but the jack should not be touched.


Most standard string or tape measurement tools include some form of calipers, but these are very crude and can lead to trouble. A referee probably has the more precise screw calipers. Calipers require practice to use properly. Firstly, place them below the gap between the bowl and the jack. Let the back of the caliper rest near or on the ground and raise the points upwards. Withdraw the caliper away from the bowls and jack to make adjustments. You should never make adjustments while the calipers are still resting between the bowl and the jack.


For even closer measurements when two competing bowls both seem in contact with the jack, to determine whether both are actually resting on the jack, you can take a dollar bill or any smooth sheet of paper and try to slide it, in turn, between each bowl and the jack. If the paper moves easily between the jack and bowl, they are not resting on each other. If it will not slide easily, that bowl and the jack are touching.


If one player is measuring and moves the jack and/or the bowl the opposite number must be the one restoring that bowl or jack. There is little you can do to prevent him/her from restoring it closer than it was (in your opinion). For this reason, some folks always ask the opponent to do the measuring. Others always ask the umpire, marker, or some neutral person. 


When using a string or tape measure, it is not a bad idea to never actually touch the jack but be about a half mm off, because it’s far easier to accidentally move the jack than the bowl. Also, a player should not place a wedge against the jack because if the jack has moved, the opponent can reposition it. Remember, the idea of measuring is to be able to see the difference between the two lengths rather than putting a number on those lengths themselves. If you measure both distances holding the measure about a half mm from the jack, but not touching, and you still cannot decide, call the umpire or someone neutral to measure.


It can happen, even when everything is legitimate, that no decision can be reached, and the bowls in question are declared to be exactly the same distance from the jack. If the measure is for second (etc) bowl, it is not counted in the score. If the measure was for the shot bowl, neither side is allowed to score; the end is counted as having been played (i.e., it is not a dead end), but no score is recorded. In other jurisdictions, each side in this situation receives one point, and the end is counted. In continuing on with the match, the side that had led off during the end will continue to lead for the next one.


If the measurer touches the jack, which wobbles, and the other vice says “my shot”. You can say, “No, you put it back and we’ll remeasure.” Whether it is the bowl or the jack that is moved, don’t just let your opponent claim anything. Get him or her to re-position the jack. At least that way, you have a half chance of them getting it back in the correct spot. 


If you are playing singles, you can ask the marker for assistance either before or after you've tried to measure. (Don't forget the marker must not push out a shot bowl; he can only point to what, in his opinion, are shots, leaving the option for an umpire to be called.)


Measuring for yourselves first before calling outside help seems like the common-sense approach. If you can reach an agreement, then no one else needs to be disturbed. If the skips agree to ask another uninvolved player, that person becomes de facto the umpire. Once you call and agree on a third party to measure,  that decision is final. No objection is valid, and any objection is unsportsmanlike. You cannot get any other decision. Once an umpire or neutral party is measuring, it is good etiquette to leave the head and not watch. Indeed, there is no point in watching. Even if there is a grievous error against you, you will just upset yourself, and nothing can be done. 



Only an umpire should resort to wedging the jack! Even so, it is not recommended by official lawn bowling associations unless especially difficult conditions prevail, such as very high winds or a jack at risk at the edge of the ditch.


Remember Rule 40.5 from the Crystal Lawn Bowling Rules. When measuring between a jack in the ditch and a bowl on the green or a jack on the green and a bowl in the ditch, the measurement should be carried out using a flexible or string measure whenever possible.


Make the fewest measurements possible for determining the score in an end. In most dispositions of the head, counting is simple. Even where a measurement is needed, it is most often only between two bowls; however, more complicated situations can arise. To avoid becoming confused and to use the measuring tape as little as is necessary to establish the score, the following rules are useful.


1.       Decide which bowl is shot. This will involve measuring one distance between a candidate and the jack and comparing it to the distances for other shot candidates. This is done by choosing the shorter distance among the first two and comparing it with that of the next candidate, and so on.


2.       Place the shot bowl on a towel to indicate that it is measured and will count.


3.       Remove any other undisputed counting bowls of the same team that have the shot bowl by placing them on the cloth.


4.       Find the closest bowl belonging to the team that did not have the shot bowl. If several bowls might be the closest bowl belonging to the team that does not hold the shot, measure among these contending bowls to find out which is the closest.


5.       Using this measurement, find any other bowls belonging to the team holding shot that are closer than this measurement and place each of these bowls on the towel.


6.       Count the bowls on the towel. This is the score for the team that had shot.


I will illustrate this with some examples.



Example #1









Bowls 1, 2, and 3 are undisputed counters for the blue team. Place them on the towel. Measure 4 and compare it with 5. Choose the closest. If it is 4, then compare 4 with 6. If it is 5 that is closer, measure 5 and compare it with 6. Whichever of 4, 5, or 6 is the closest, take that measure and compare it in turn with 7, 8, 9, and then 10. Each of 7, 8, 9, and 10 that is closer than the best of 4, 5, and 6 is placed on the towel. The number of bowls on the towel is the correct score for the blue team.


Example #2

The blue team has shot indisputably. Place bowl 1 on the towel. Measure 2 and compare with 3. If the green 2 is closer than 3, the blue team scores 1. If the blue 3 is closer than 2. Place bowl 3 on the towel. The next closest bowl is 2. The blue team scores the two bowls on the towel.     





Example #3



The green team has three undisputed closer bowls. Place these on the towel.

Measure among 4, 7, 8, 9, and 10 to find which is the closest blue bowl among them. Compare the shortest of these measurements against 5. If 5 is closer, place 5 on the towel. Compare it now with 6. If 6 is closer, place 6 on the towel. Count the bowls on the towel. This is the score for the green team.


Further information about measuring can be found at https://greenbowler.blogspot.com/2021/04/measuring-in-close-disputed-ends-at.html





Friday, April 30, 2021

Measuring in Close Disputed Ends at Lawn Bowls

General Points


In social games it is a kindness to offer to do the measuring if you observe that your opponent is having difficulty; however, do not be insistent. Many players take offense if you imply that they are not physically capable.


Thirty seconds after the last bowl in an end has been played, any player from either team can wedge any bowl that may fall before the count is complete. The wedge can be anything that comes to hand. No bowl can be wedged until 30 seconds after the last bowl has stopped rolling because either team’s skip or a player in singles can request such a delay before counting begins to give any tilting bowl a chance to tip down. 


When the points are critical, it is best to call for assistance. If you try to measure and disturb the jack or any bowl potentially affecting the count, the other side will be entitled to reposition the disturbed jack or wood where they feel it was located. Additionally, if an actual umpire is available, better measuring equipment can resolve even very close cases.


If the competing teams are going to do their own counting, the following apply. 


Shot in Dispute


The side with the single closest bowl is the only side that can score in an end, so first, the shot bowl must be decided. To determine who holds that bowl, either side can do the measurement, but as a matter of bowling etiquette, that person should measure their own candidate first. If there are more than two candidates for shot-bowl, it makes sense for the side with the fewest such candidates to measure, since that will end up being the most efficient. For example, if one side has a single bowl that might be shot while the other side has two such candidates, it is necessary for the side with only the single candidate to measure their bowl first and compare its length to each of the other side's two bowls so that a decision can be made with only a single stretching of the string measure. However, the Laws of World Bowls say nothing about who should do the measuring; so, based on the rules, either side may measure.


Shot Not in Dispute


If the shot bowl is not in dispute, the scoring side may ask for additional shots. These additional shots are each either conceded, or the side asking for these additional shots will require that a measure be made. The measurement is normally made by the side that does not have the shot bowl, but that side might occasionally refuse to do this measuring. This usually arises when such further deciding is, in their eyes, obvious and no further measuring is required. In this case, the side asking for more shots will need to make the measurement.   The side asserting entitlement to more points must, in the end, make its own case!  In every situation, the side not taking the measure may ask for the opportunity to confirm the measurement themselves. Each shot must be agreed to or appealed to an umpire.


In measuring at lawn bowls, there is a rule of etiquette already alluded to that the person doing the measuring must measure his/her own bowl first. Wherever I have looked on the internet, the word ‘must’ in this pronouncement is in capitals, so the admonition seems to be very strongly held. What is the reason for this emphatic rule, I wonder? The Laws of World Bowls are silent. 


The side that is not doing the measuring in any end can elect to remeasure at the time a decision on a particular bowl is being made. Once a decision has been agreed concerning any particular bowl, however, that bowl is removed from the head. Either side can at any time call for an umpire to decide concerning any bowls that have not already been agreed upon.


Since in contentious heads, where several bowls from each side are possible counters, such that quite a few measurements may be needed, the side that can win the additional points should do the measuring work. 

Thursday, July 4, 2019

Lawn Bowling Skills Development Exercises



For the last two summers, I have run a clinic at Etobicoke LBC in Toronto Canada for lawn bowlers who are no longer beginners but still want to accelerate improvement in their bowling skills using some drills. I call it the Skills Development Challenge. I do not coach attendees although I remain on the green to answer questions or to help any new bowlers who show up.
 I set up 8 rinks each arranged to test a skill that if mastered can improve their game. I tell participants that it is a playground. They can start on any rink using their own bowls. They can try all or whichever challenges they want. They should just move from low rink numbers towards higher ones so they don’t collide with other participants. Each person gets a handout explaining what is going on at each rink site. In this blog, I attach the handouts for each of the four weekends. In my case, the green is open Sunday morning from 10:30am-12:01pm. 

SKILLS DEVELOPMENT CHALLENGE  2019 (1)

Rink 1 Deliver two jacks, one after the other, to between 21 and 23 meters (short jacks)
Then deliver two consecutive jacks to within 4 meters of the front ditch (long jacks).
Control of jack length is one of the two tools your side has to stay ahead. What is the other?

IMPORTANT FOR LEADS AND SINGLES BOWLERS_____________________________________

Rink 2 Deliver 4 bowls with the same weight over a single stare point marked with a beer coaster;
See whether you can pick up ALL 4  of your bowls from the green afterward without moving your feet from one place. The correct weight is 90% of the game; line is only 10%.

IMPORTANT FOR ALL BOWLERS______________________________________________________

Rink 3 Your opponent(s) have a very close shot bowl. Bowl 4 bowls so each of your 4 bowls finishes either within one mat length of the jack or ends up behind the jack; don’t be short. [When you’re down (in the head) be up!]

IMPORTANT FOR ALL BOWLERS______________________________________________________

Rink 4 Add or subtract length. Deliver your first 2 bowls trying to reach the length of your skip’s shoe, which is placed 1 meter beyond the jack; With your next two bowls try to subtract a meter.
The object is to avoid bowling short by first getting behind the jack and then correcting to get to the jack; avoid short bowls!

IMPORTANT FOR ALL BOWLERS_____________________________________________________

Rink 5 Draw around bowls to reach the jack; change where you stand on the mat if necessary. It isn’t necessary to change hands to avoid bowls in your line.

IMPORTANT FOR ALL BOWLERS _____________________________________________________

Rink 6 Remove a  single opposition bowl. Hit the shot bowl and move it back. Quite often the best way to score is to knock out an opposition bowl. Hitting a bowl is much easier than hitting a jack.

IMPORTANT FOR SKIPS ______________________________________________________________

Rink 7 Bowl between the two smaller markers with the weight to reach the large marker behind.
You can try with each of your bowls but don’t be short and block yourself.

IMPORTANT FOR VICES AND SKIPS ___________________________________________________

Rink 8 Draw to within 2 meters of the front ditch aiming towards a ditched jack. 

IMPORTANT FOR SKIPS ______________________________________________________________


SKILLS DEVELOPMENT CHALLENGE  2019 (2)

Rink 1 Deliver a jack and then immediately follow with a bowl delivering with the same rhythm speed. Rhythm speed is the combined swing of your arm and length of your step. Repeat- first jack then bowl. Delivering the jack first is one of the best ways for the lead to get the proper length.
IMPORTANT FOR LEADS AND SINGLES BOWLERS_____________________________________

Rink 2 Deliver 4 bowls with the same weight over a single stare point marked with a beer coaster;
See whether you can pick up ALL 4  of your bowls from the green afterward without moving your feet from one place. The correct weight is 90% of the game; line is only 10%.

IMPORTANT FOR ALL BOWLERS______________________________________________________

Rink 3 Your opponent(s) have a very close shot bowl. Bowl 4 bowls so each of your 4 bowls finishes either within one mat length of the jack or ends up behind the jack; don’t be short. [When you’re down (in the head) be up!]

IMPORTANT FOR ALL BOWLERS______________________________________________________

Rink 4 Deliver one bowl to each of four lengths marked by tennis balls. The correct weight is 90% of the game; line is only 10%.

IMPORTANT FOR ALL BOWLERS_____________________________________________________

Rink 5 On-shot through your team’s bowls in front of the jack. Promote your team’s short bowls.

IMPORTANT FOR VICES AND SKIPS________________________________________________

Rink 6 Remove a  single opposition bowl. Hit the shot bowl and move it back. Quite often the best way to score is to knock out an opposition bowl. Hitting a bowl is much easier than hitting a jack.

IMPORTANT FOR SKIPS ______________________________________________________________

Rink 7 Bowl between the two smaller markers with ‘ditch’ weight. You may need to break up a head when you are badly down. No more power is required than ‘ditch weight’. Extra power gives up accuracy.

IMPORTANT FOR VICES AND SKIPS ___________________________________________________

Rink 8 Push up one of your team’s short bowls.  A standing bowl is easier to move.

IMPORTANT FOR VICES & SKIPS ______________________________________________________

SKILLS DEVELOPMENT CHALLENGE  2019 (3)

Rink 1 Deliver a jack and then immediately follow with a bowl delivering with the same rhythm speed. Rhythm speed is the combined swing of your arm and length of your step. Repeat- first jack then bowl. Delivering the jack is one of the best ways for the lead to get proper length.
IMPORTANT FOR LEADS AND SINGLES BOWLERS_____________________________________

Rink 2 Deliver 4 bowls with the same weight over a single stare point marked with a beer coaster;
See whether you can pick up ALL 4  of your bowls from the green afterward without moving your feet from one place. The correct weight is 90% of the game; line is only 10%.
IMPORTANT FOR ALL BOWLERS______________________________________________________

Rink 3 Add or subtract length. Deliver your first 2 bowls trying to reach the length of your skip’s shoe, which is placed 1 meter beyond the jack; With your next two bowls try to subtract a meter.
The object is to avoid bowling short by first getting behind the jack and then correcting to get to the jack; avoid short bowls!

IMPORTANT FOR ALL BOWLERS_____________________________________________________

Rink 4 There are two jacks and two mats on this rink. Deliver 4 bowls from the back mat aiming to reach the jack at the hog line. Then deliver your 4 bowls from the forward mat to the jack at two meters from the front ditch. Does your aim change with the different mat positions? Does your weight change?

IMPORTANT FOR ALL BOWLERS_____________________________________________________

Rink 5 Remove both opposing bowls with a single delivery. This is one of the biggest easiest targets you will ever be given.

IMPORTANT FOR VICES AND SKIPS________________________________________________

Rink 6 Remove a  single opposition bowl. Hit the shot bowl and move it back. Quite often the best way to score is to knock out an opposition bowl. Hitting a bowl is much easier than hitting a jack.

IMPORTANT FOR SKIPS ______________________________________________________________

Rink 7 Deliver two blockers- one to protect against a forehand draw and the second to protect against a backhand draw. With your next two bowls deliver one forehand draw and then one backhand draw. Are your blockers effective? The best blockers against draw shots are just 14 meters from the mat.

IMPORTANT FOR VICES AND SKIPS ___________________________________________________

Rink 8 Draw to within 2 meters of the front ditch aiming towards a ditched jack. 

IMPORTANT FOR SKIPS ______________________________________________________________

SKILLS DEVELOPMENT CHALLENGE  2019 (4)

Rink 1 Deliver two bowls on your forehand and then two bowls on your backhand. Decide which is the more playable hand for you going in this direction. Now bowl two bowls on your forehand and two on your backhand coming back in the opposite direction. Again, for you, what is the more playable hand? Often , particularly on rinks that are not completely flat, one side is more forgiving of errors in line than the other and it is usually, but not always, the narrower side. Lead bowlers can often tell teammates the more playable side. 
IMPORTANT FOR LEADS AND SINGLES BOWLERS_____________________________________

Rink 2 The opposition has delivered a very close shot with their first bowl. Draw your side’s first bowl. Follow with three more good bowls.  It is even more important not to be short when the opposition has a very good shot bowl. As lead it is not your role to remove it. Try to deliver a good second best bowl; close but more importantly- behind the jack.
IMPORTANT FOR LEADS  AND SINGLES BOWLERS_____________________________________

Rink 3 Your side has delivered a very close bowl (6 inches).  Bowl 4 bowls so each of your bowls ends up behind the jack. Particularly, try not to bowl narrow; you do not want to separate your close bowl from the jack. The opposition will attack. The jack is very likely to move backward. 
IMPORTANT FOR ALL BOWLERS______________________________________________________

Rink 4 There are two jacks and two mats on this rink. Deliver 4 bowls from the back mat aiming to reach the jack at the hog line. Then deliver your 4 bowls from the forward mat to the jack at two meters from the front ditch. Does your aim change with the different mat positions? Does your weight change?

IMPORTANT FOR ALL BOWLERS_____________________________________________________

Rink 5 This is a test of measuring. Don’t bowl. Look at the head set-up. What do you measure? How many points does yellow score? Hint- After removing the uncontested bowls decide which is the best contesting bowl of the side that does not hold shot.

IMPORTANT FOR VICES AND SINGLES BOWLERS_______________________________________

Rink 6  Bowl to an off-center jack. This presents two problems: the possibility of ending out of bounds and estimating line & length over new grass.

IMPORTANT FOR ALL BOWLERS ______________________________________________________

Rink 7 Bowl your 4 bowls into this head and then count your score versus the bowls already behind the jack. Hint- If you touch the jack you can get in real trouble. If you bowl short you may block yourself. Try to rest your bowls on the opposing bowls behind or wick in off your own side bowls.

IMPORTANT FOR ALL BOWLERS ___________________________________________________

Rink 8 Bowl within two meters of the ditch because the jack is in the ditch. Be daring. The last two meters of grass is longer and the edge of the rink may have a small rise.
IMPORTANT FOR VICES & SKIPS______________________________________________________


You will notice that some challenges are repeated in different weeks while others appear only once. I emphasize that there is no need to come every week and no week is a prerequisite for later weeks.

Saturday, October 24, 2020

The Ten Top Greenbowler Lawn Bowling Blogs




Ryan Bester at Broadbeach

 


I've been posting The Greenbowler Blog for seven years. Although, as the editor, I can see which of my 228 posts have been more popular this information is not readily available to readers although posts can be selected by keywords using the search tool in the right-hand column of each blog article. So below, I list, each with its own link, my 10 most popular blog articles of all time. If this proves useful and there is a demand for it, I will supply links for numbers 11-20 later.




1. The Secret to Controlled Weight


2. Strategy and Tactics at Bowls


3. Lawn Bowling from the Shooters Stance


4. Measuring at Bowls


5. Jack or Bowl: Reading the Head


6. Strategy of Leads at Pairs


7. Controlled Weight


8. Choosing your Correct Bias for Bowls


9. Delivering Bowls with a Cocked Wrist


10. Henselite Supergrip Championship Bowls