Event: The Chess Centre - Guiseley (Class 1) Junior League

PDF Excel

Opponent	Rating	Result
Kira Kapustina	660	½ - ½
Kira Kapustina	660	1 - 0
Ellis Tighe	427	1 - 0
Samuel Walker	770	1 - 0
Toby Gregson	905	0 - 1
Louis Lau	1071	0 - 1
Daniel Miller	763	1 - 0

performance = (sum(opponents ratings) + 400(wins-losses)) / games

865 = (5256 + 400 * (4 - 2)) / 7)