Event: Easter Rapidplay

PDF Excel

Opponent	Rating	Result
Iain Mellis	1655	0 - 1
Daniel Ayre	885	1 - 0
Stephen Rodgers	0	0 - 1
Sam Stevenson	1060	0 - 1
Freddie Dawson	0	1 - 0

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

640 = (3600 + 400 * (2 - 3)) / 5)