Event: Derby Long play

PDF Excel

Opponent	Rating	Result
Matthew Caswell	120	0 - 1
John Challenor	113	1 - 0
Duncan Meikle	0	1 - 0
Luke Woodward	36	1 - 0
Stephen Lamont	143	½ - ½

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

242 = (412 + 400 * (3 - 1)) / 5)