Event: SCL Div 2

PDF Excel

Opponent	Rating	Result
David Renham	0	0 - 1
Philip Barber	0	0 - 1
John M Wiseman	0	½ - ½

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

-267 = (0 + 400 * (0 - 2)) / 3)