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Post by Acumen on Aug 26, 2015 15:05:35 GMT
How accurately can you judge a wicket keeper encroaching? Are you standing in the right place? Please take our quick photo survey at www.surveymonkey.com/s/ZWYJ97KPS It is anonymous!!
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Post by Acumen on Jan 6, 2016 17:18:46 GMT
As at 5th January, we have now received 300 responses to our survey - www.surveymonkey.com/s/ZWYJ97KIT IS ALARMING
228 umpires would INCORRECTLY penalised the wicket-keeper in picture POP4 114 would INCORRECTLY allow the wicket keeper to encroach in picture POP5 What was WORSE, 28 umpires LIED – they claimed to have got all three decisions correct but had actually made at least one error! Please, when the wicket-keeper is very close, do ensure that you are looking along the lib=ne of the BOWLING CREASE, otherwise parallax will affect your judgment. From that angle, you can still judge stumpings accurately - indeed some argue that it is better to view them from behind the Popping Crease as you have a better view of the grounding. However I would advise moving more towards the Popping Crease when the batsmen start running - especially if they are running wide of the markings. There were a couple of complaints about the perspective on POP4 - one even suggesting that the keeper was touching the stumps. I can assure you that I was careful to position his hands just above the Return Crease as I was keen to emphasise the possible error of judgment. Obviously when keeper is not in danger of encroaching, revert to your normal preferred position.
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Post by Umpirical View on Jan 14, 2016 8:09:18 GMT
Thanks, Colin for posting this survey. It was a good learning for me. It would be very educative if more such pictorial questions are posted. Thanks again for your efforts..much appreciated.
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Post by Acumen on Jan 17, 2016 18:18:57 GMT
I have just significantly improved the layout of the survey.
Same pictures but you will see the answer on the page after the question - it will also tell you whether you were right or wrong.
Please feel free to try as many times as you like - and tell your friends.
I was originally free but I have now paid for a one month upgrade to the system so it may not work after that expires.
As ever, comments always welcome.
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Post by tons4fun on Mar 10, 2016 15:10:43 GMT
World T20 today HK v Afghanistan.
Afghanistan bowler Nabi bowling RA round (off spinner) to a left handed bat. Don't know the umpires name but he was standing at least a yard in front of the popping crease on a couple of occasions. Somewhat contrary to the recommended position!
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Post by missingleg on Mar 11, 2016 9:18:11 GMT
That's so he doesn't get in the way of the TV umpire's view of the crease.
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Post by Antipodean on Mar 12, 2016 13:48:45 GMT
Yup - and its worth noting for runouts that the ICC tell umpires that they expect them to make the decision when the batsmen is greater than 4 feet from the popping crease (and using common sense), so theres quite a bit of leeway there. Stands to reason that anything close enough where a inferior position will make a difference is going upstairs...
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Post by Aussie Col on Jun 4, 2016 7:36:12 GMT
Law 40
3. Position of wicket-keeper
The wicket-keeper shall remain wholly behind the wicket at the striker’s end from the moment the ball comes into play until
(a) a ball delivered by the bowler,
either (i) touches the bat or person of the striker,
or (ii) passes the wicket at the striker’s end,
or (b) the striker attempts a run.
In the event of the wicket-keeper contravening this Law, the striker’s end umpire shall call and signal No ball as soon as applicable after the delivery of the ball.
Not once is the Bowling Crease mentioned. Keeper must remain behind the wicket. The wicket is the stumps and bails. So keeper must be behind the stumps. In one of your questions the keeper is not behind the stump and your answer is a fair ball. Wrong - it is a no ball. You need to fix up the survey.
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Post by missingleg on Jun 4, 2016 8:17:46 GMT
Forgive me but aren't the stumps usually placed on the bowling crease?
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Post by Dylx8 on Jun 4, 2016 15:48:06 GMT
Forgive me but aren't the stumps usually placed on the bowling crease? No, the bowling crease is marked in line with the centres of the stumps at each end (Law 9.2)
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Post by missingleg on Jun 4, 2016 22:54:40 GMT
Yes so the stumps are placed on the bowling crease (a one dimensional line), not the crease marking.
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Post by Acumen on Jun 5, 2016 8:18:28 GMT
AUSSIE COL
Please login or provide an email address so that I can respond
In particular which picture do you think is wrong? Is it more than a millimeter or a fraction of an inch?
We tried to be careful when e staged it!
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Post by sillypoint on Jun 6, 2016 2:36:21 GMT
Note the following: • The bowling creases are by definition the ends of the pitch (Law 7.1 "It is bounded at either end by the bowling creases…" • There is a difference between any "crease" and its associated "crease marking". The actual crease itself has no width, and its location is defined in Law as either the "back edge" or the "inside edge" of its associated marking. Thus the bowling crease is set in Law 9.2: "The bowling crease, which is the BACK EDGE of the crease marking…" which, further: "SHALL BE the line through the centres of the three stumps at that end." (In practice, since the creases are usually marked before the stumps are pitched, it is therefore essential that the stumps be pitched on the back edge of the crease marking.) • Since the wicket is located ON THE BOWLING CREASE, for the purpose of complying with Law 40.3 it follows that the wicketkeeper must also remain wholly behind that crease, and that as umpires we must look along that line in order to judge this, otherwise parallax may cause errors, which was the whole point of this exercise.
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Post by tippex2 on Jun 6, 2016 10:00:26 GMT
Note the following: • Since the wicket is located ON THE BOWLING CREASE, for the purpose of complying with Law 40.3 it follows that the wicketkeeper must also remain wholly behind that crease, and that as umpires we must look along that line in order to judge this, otherwise parallax may cause errors, which was the whole point of this exercise. Not strictly accurate - the keeper has to be further back than the bowling crease. In order to be wholly behind the wicket, he has to be roughly 1.8cm further back, in order to be behind the half of the stumps which are behind the bowling crease. While the crease is a one-dimensional line, the stumps / wicket are 3 dimensional objects, and the keeper must remain behind all of the wicket, not just the half which is in front of the bowling crease.
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Post by sillypoint on Jun 6, 2016 14:23:18 GMT
The point I was making concerns parallax. If you are not looking along the bowling crease but rather looking from some point forward of there you will introduce an angle of sight that will make it appear the keeper is encroaching when he may well not be. An extra 18mm will not produce a significant parallax error, but 900–1200mm will.
I would also make the point that what I said is indeed accurate (that the keeper must remain wholly behind the bowling crease), and not negated by the need for him to also remain 18mm or so further back than the bowling crease.
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