Event: Parkinson

PDF Excel

Opponent	Rating	Result
Sam Scurfield	137	½ - ½
Ludi Simpson	0	0 - 1
Karim Khan	145	0 - 1
Kevin Winter	144	0 - 1

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

-194 = (426 + 400 * (0 - 3)) / 4)