Event: MID County / Lewis Cup

PDF Excel

Opponent	Rating	Result
Francis Rayner	192	0 - 1
David J Shire	169	½ - ½
D Ian Calvert	171	½ - ½
George E Hollands	155	1 - 0
Kevin Smyth	163	0 - 1
Jerry Anstead	164	½ - ½
Barrington Beavis	147	1 - 0

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

166 = (1161 + 400 * (2 - 2)) / 7)