Event: Championship 2018

PDF Excel

Opponent	Rating	Result
S Neil Bolton	78	1 - 0
Paul RH Clarke	155	0 - 1
Samuel J Playford	110	0 - 1
Rob Letton	150	0 - 1
John Brooke	117	1 - 0

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

42 = (610 + 400 * (2 - 3)) / 5)