Event: David Hodgson Trophy

PDF Excel

Opponent	Rating	Result
Anthony M Langley	1569	½ - ½
Stephen Ashworth	1648	0 - 1
Anthony M Langley	1569	0 - 1
Stephen Ashworth	1648	0 - 1

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

1309 = (6434 + 400 * (0 - 3)) / 4)