Event: IM Brown

PDF Excel

Opponent	Rating	Result
Peter Hughes	151	0 - 1
John M Rose	96	0 - 1
Mark Rojinsky	100	½ - ½
Matt Jones	102	0 - 1

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

-188 = (449 + 400 * (0 - 3)) / 4)