Event: Eastman Cup

PDF Excel

Opponent	Rating	Result
Andrew M Cuff	1654	0 - 1
Charles Rigby	1454	1 - 0
Graham P Alcock	1825	½ - ½
Andrew Hayler	1961	0 - 1
James MG Toon	2055	0 - 1
Charles Carr-Jones	412	1 - 0
Tim M Joslin	1822	0 - 1

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

1483 = (11183 + 400 * (2 - 4)) / 7)