Event: Durham League Division 2

PDF Excel

Opponent	Rating	Result
Liam Bellwood	0	0 - 1
James Buckley	0	½ - ½
David Smith	0	0 - 1
George Farman	0	1 - 0
Vaughan Davison	0	½ - ½

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

-80 = (0 + 400 * (1 - 2)) / 5)