Event: Walker Shield

PDF Excel

Opponent	Rating	Result
Phil Evans	1400	1 - 0
Roy J McAloney	1412	1 - 0
William Horsford	1075	0 - 1
Jack Evans	1400	1 - 0
William Horsford	1075	1 - 0
Joseph Morris	1172	1 - 0
Martin Jordan	1190	1 - 0

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

1532 = (8724 + 400 * (6 - 1)) / 7)