Event: 2nd Yorkshire Rapidplay Championships - Major

PDF Excel

Opponent	Rating	Result
Kevin Winter	1733	0 - 1
Piotr Stachowiak	1604	0 - 1
Randolph E Donahue	1739	1 - 0
Dale H Cullum	1753	½ - ½
Nigel R Hepworth	1714	0 - 1
Matthew R Wilson	1692	0 - 1

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

1506 = (10235 + 400 * (1 - 4)) / 6)