Event: Division Two

PDF Excel

Opponent	Rating	Result
David Flynn	166	½ - ½
Jonathon Vaughan	168	1 - 0
Azmat Farooq	135	0 - 1

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

156 = (469 + 400 * (1 - 1)) / 3)