Event: Doncaster Bell Trophy

PDF Excel

Opponent	Rating	Result
John P Mainwaring	149	0 - 1
Phillip J Battye	146	0 - 1
T Ed Sowerby	129	0 - 1
Martin Presley	0	0 - 1
T Ed Sowerby	129	0 - 1
John P Mainwaring	149	½ - ½
Phillip J Battye	146	0 - 1
Martin Presley	0	1 - 0

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

-144 = (848 + 400 * (1 - 6)) / 8)