Event: Martin Cath Trophy

PDF Excel

Opponent	Rating	Result
Roy Batchelor	1838	½ - ½
Martin Stewart	1840	1 - 0
Paul G Jackson	1822	0 - 1

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

1833 = (5500 + 400 * (1 - 1)) / 3)