Event: Div3

PDF Excel

Opponent	Rating	Result
Edward T Bromilow	0	½ - ½
Nigel Wright	133	1 - 0
Paul H O'Flanagan	119	½ - ½
Shah Hussain	121	1 - 0
Shah Hussain	121	1 - 0

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

339 = (494 + 400 * (3 - 0)) / 5)