Event: Division 1

PDF Excel

Opponent	Rating	Result
John R Richardson	2343	½ - ½
Simon Wilks	2203	½ - ½
Petr Vachtfeidl	1937	1 - 0
Frankie Badacsonyi	2181	0 - 1
Richard Britton	2182	½ - ½
David C Okike	2230	½ - ½
Alan H Perkins	2151	0 - 1

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

2118 = (15227 + 400 * (1 - 2)) / 7)