Event: 16th August - Internal Rapidplay

PDF Excel

Opponent	Rating	Result
William Heyes	1607	0 - 1
Martin Gaskell	1428	0 - 1
Amber Hurst	1169	1 - 0
Paul Keevil	1749	½ - ½

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

1388 = (5953 + 400 * (1 - 2)) / 4)