Event: MID En Passant Cup

PDF Excel

Opponent	Rating	Result
Marc A Bryant	131	0 - 1
Constantine Tucker	130	1 - 0
David A Tidmarsh	134	0 - 1
Robert Springett	134	½ - ½
Richard Woodfield	117	½ - ½
Ian J Clark	125	½ - ½
Gary Willson	119	½ - ½

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

70 = (890 + 400 * (1 - 2)) / 7)