Event: Doncaster League

PDF Excel

Opponent	Rating	Result
Richard F Hall	137	½ - ½
Peter JE Ackley	191	0 - 1
Peter Catt	141	0 - 1
Peter Dawson	122	0 - 1
Richard E Desmedt	153	½ - ½

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

-91 = (744 + 400 * (0 - 3)) / 5)