Event: B Division

PDF Excel

Opponent	Rating	Result
Neil Jerzynek	128	0 - 1
Ian Mitchell	114	½ - ½
Derek Marsden	103	1 - 0
Marlon Espiritu	0	0 - 1
Steven Press	107	1 - 0

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

90 = (452 + 400 * (2 - 2)) / 5)