Event: Div2

PDF Excel

Opponent	Rating	Result
Kevin J Dalley	160	½ - ½
Ranjit Nath	151	0 - 1
John D Hoddy	140	0 - 1

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

-116 = (451 + 400 * (0 - 2)) / 3)