Event: Walker Shield

PDF Excel

Opponent	Rating	Result
Sean Duffy	1083	1 - 0
Don Richards	1402	½ - ½
John L Clarke	1333	0 - 1
Vincent Larson	1250	1 - 0
Sam Feuillatre	1389	0 - 1
Martin Jordan	1300	0 - 1
Connor Scott	1350	0 - 1

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

1187 = (9107 + 400 * (2 - 4)) / 7)