Event: U2000 2nd Chess Centre Rapid

PDF Excel

Opponent	Rating	Result
Tim Roth	1458	1 - 0
Thomas Wills	1951	0 - 1
Edmund Whelan	1598	½ - ½
George Swanson	1658	½ - ½
David Wells	1874	0 - 1

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

1628 = (8539 + 400 * (1 - 2)) / 5)