Event: Division 1

PDF Excel

Opponent	Rating	Result
Barry Jones	160	0 - 1
Ian Bates	159	0 - 1
Simon R Edwards	178	0 - 1
Michael L Hancock	169	0 - 1
Hambel M Willow	136	½ - ½

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

-160 = (802 + 400 * (0 - 4)) / 5)