Event: Derbyshire Individual

PDF Excel

Opponent	Rating	Result
Andrew Stevens	0	½ - ½
Paul Madden	190	0 - 1
Norman W Parkin	105	1 - 0
David Williams	162	1 - 0
Ranjit Nath	157	0 - 1

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

123 = (614 + 400 * (2 - 2)) / 5)