Event: Chessmaster Challenge 80/10

PDF Excel

Opponent	Rating	Result
Andrew T Watson	1392	0 - 1
Glen Smith	0	1 - 0
Alan Wilson	0	½ - ½

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

464 = (1392 + 400 * (1 - 1)) / 3)