Event: Dave Welch 7200 League

PDF Excel

Opponent	Rating	Result
Kevin A Sartain	1778	0 - 1
Adam Stoddart	1694	0 - 1
Adam Morris	1600	1 - 0

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

1557 = (5072 + 400 * (1 - 2)) / 3)