Event: Rapidplay All-play-all

PDF Excel

Opponent	Rating	Result
Dave Marshall	140	0 - 1
David L Weston	123	0 - 1
Adrian Bond	86	0 - 1
Wieslaw Stanicki	74	½ - ½
Christopher Lamming	135	0 - 1
Mark J Leonard	159	0 - 1
Roy A Ludlow	129	0 - 1
Ian R Saint	47	1 - 0

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

-138 = (893 + 400 * (1 - 6)) / 8)