#141  
Old 09-19-2019, 04:01 PM
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Originally Posted by DiscFifty View Post
True or false? 2 >>separate<< divisions: one filled with 800 rated players, the other filled with 1000 rated players. Both shoot the same scores. The division with the 1000 rated players will have higher ratings.
That would be false
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  #142  
Old 09-19-2019, 04:27 PM
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Originally Posted by DiscFifty View Post
True or false? 2 >>separate<< divisions: one filled with 800 rated players, the other filled with 1000 rated players. Both shoot the same scores. The division with the 1000 rated players will have higher ratings.
I think I need more information to parse this.. so the two divisions are playing in the same field (i.e. same course, roughly same time) as each other? And 100% of the 800-rated players and 100% of the 1000-rated players all end up with the same score?

If yes, all of them would get the same round rating.. and the sum of the rating variances would total to zero (i.e. the round would rate somewhere in between 800 and 1000, depending on the exact number of players in each division).

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  #143  
Old 09-19-2019, 09:22 PM
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Here's a real life example from a tourney I ran a few months ago:

https://www.pdga.com/tour/event/40410

Look at round 2 and you will see that a 56 is rated at 875 regardless of division and everyone played the exact same layout. There are 56's in MA2, MA40 MA3. That should answer that true/false question.
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  #144  
Old 09-19-2019, 10:04 PM
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Quote:
Originally Posted by davetherocketguy View Post
Here's a real life example from a tourney I ran a few months ago:

https://www.pdga.com/tour/event/40410

Look at round 2 and you will see that a 56 is rated at 875 regardless of division and everyone played the exact same layout. There are 56's in MA2, MA40 MA3. That should answer that true/false question.
I thought the 49s were more interesting.

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  #145  
Old 09-19-2019, 10:19 PM
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I thought the 49s were more interesting.
Hah! Guess I didn't notice that
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  #146  
Old 09-20-2019, 12:40 AM
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Quote:
Originally Posted by jeverett View Post
I think I need more information to parse this.. so the two divisions are playing in the same field (i.e. same course, roughly same time) as each other? And 100% of the 800-rated players and 100% of the 1000-rated players all end up with the same score?

If yes, all of them would get the same round rating.. and the sum of the rating variances would total to zero (i.e. the round would rate somewhere in between 800 and 1000, depending on the exact number of players in each division).
Here you assume that they are playing in same tournament ie their scores get combined? But if 800-group played independent competition, everyone shot the same score, wouldn't they get rating of 800 (zero-sum game, no other information) whereas 1000-group would end up with 1000-rated rounds?

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Old 09-20-2019, 12:42 AM
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Originally Posted by Jouni View Post
Here you assume that they are playing in same tournament ie their scores get combined? But if 800-group played independent competition, everyone shot the same score, wouldn't they get rating of 800 (zero-sum game, no other information) whereas 1000-group would end up with 1000-rated rounds?
Yes, exactly. In the hypothetical scenario of an entire field of exactly-equally-rated players, all of whom throw the exact same score, they would all end up with a round rating equal to their own rating.
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Old 09-20-2019, 10:59 AM
Ryan C Ryan C is offline
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Yes, on the same layout on the same day, regardless of division score X will receive rating Y regardless of the rating of the player who shot that score.

However, what that rating actually is will be influenced by the ratings of the field. So if 50 1000 rated players all shoot a 54, then that round rating should be 1000. If 50 900 rated players and 50 1000 rated players all shoot a 54, then the rating will not be 1000 anymore, but it will be higher than 900.
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  #149  
Old 09-20-2019, 03:35 PM
DiscFifty DiscFifty is offline
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Quote:
Originally Posted by davetherocketguy View Post
Here's a real life example from a tourney I ran a few months ago:

https://www.pdga.com/tour/event/40410

Look at round 2 and you will see that a 56 is rated at 875 regardless of division and everyone played the exact same layout. There are 56's in MA2, MA40 MA3. That should answer that true/false question.
I 100% understand this, but my question is geared toward this...

1) A division of 1000 rated players plays one day.
2) A division of 800 rated players plays on a different day.

I am willing to bet ratings for same scores will be different.
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  #150  
Old 09-20-2019, 03:48 PM
JC17393 JC17393 is offline
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Quote:
Originally Posted by DiscFifty View Post
I 100% understand this, but my question is geared toward this...

1) A division of 1000 rated players plays one day.
2) A division of 800 rated players plays on a different day.

I am willing to bet ratings for same scores will be different.
Of course they will. What does that matter? Ratings are about the players not the course.

That said, it is highly unlikely that a group of 800 rated players would shoot scores that matched exactly to a group of 1000 rated players on the same course. It is far more likely that the 800 rated group, on average, would have quite a few throws more than the 1000 rated players.
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