View Single Post
Old 04-30-2013, 02:38 PM
jeverett's Avatar
jeverett jeverett is offline
Double Eagle Member
Join Date: Sep 2009
Location: Eugene, OR
Years Playing: 8.4
Courses Played: 25
Throwing Style: LHBH
Posts: 1,153
Niced 4 Times in 4 Posts

Originally Posted by 1978 View Post
Chuck, rounds that are below your average that are dropped?
Is it a # of standard deviations or a number of ratings points. Does the calculation take into account consistency?

For example:
Player A (975 rated) shoots 40 rounds of 975 golf. a 920 should be dropped.
Player B (975 rated)shoots 40 rounds 10@ 1030, 10@920, 20@975. A 920 shouldnt be dropped.
Statistically, player B doesn't really exist. Chuck posted some values in the past, but propagators (players with at least 8 prior rated rounds) in general are more consistent than the player B exemplar. ~90% of the time, a player will shoot within +/- 30 points of their own rating, making the odds of a player B existing really really really tiny. Oh, also, the cutoff for exclusion in the SSA calculation was a round initially rated >60 points below the player's rating, so the 920 would be counted for both players.
Reply With Quote