Event: Durham League Division 2

PDF Excel

Opponent	Rating	Result
Peter Harker	0	0 - 1
Felix Watts	0	0 - 1
Carl Stephens	0	0 - 1
Oliver Montague	0	0 - 1

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

-400 = (0 + 400 * (0 - 4)) / 4)