Event: 24th October - Internal Rapidplay

PDF Excel

Opponent	Rating	Result
Jonathan Culshaw	1462	0 - 1
John Shortt	1301	0 - 1
Paul Winstanley	0	1 - 0
Paul Keevil	1684	0 - 1

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

912 = (4447 + 400 * (1 - 3)) / 4)