Event: Club Championship

PDF Excel

Opponent	Rating	Result
Philip Hutchings	162	0 - 1
Nick Margerum	0	½ - ½
David Welsh	112	0 - 1
Simon Webber	117	½ - ½
Graeme Jones	151	0 - 1
Jim Buis	155	½ - ½
John WF McAllister	125	0 - 1

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

-111 = (822 + 400 * (0 - 4)) / 7)