Event: OTB Club Championship

PDF Excel

Opponent	Rating	Result
Istvan Karacsony	1825	0 - 1
Ibrahim Ali	1000	1 - 0
Michael GA Wilson	1678	0 - 1
Ivan Hutcheson	1499	½ - ½
Albert Merdinian	0	1 - 0
Terry D Whitton	1897	0 - 1
Ben Harte	1732	0 - 1

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

1262 = (9631 + 400 * (2 - 4)) / 7)