Event: Club Championship

PDF Excel

Opponent	Rating	Result
Matthew Caswell	1650	0 - 1
Tony O'Donovan	1361	0 - 1
Chris Cole	0	0 - 1
Chris Sharp	1533	1 - 0
Colin Ross	1497	0 - 1

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

968 = (6041 + 400 * (1 - 4)) / 5)