Event: Club Championship

PDF Excel

Opponent	Rating	Result
Richard Bailey	1512	0 - 1
Paul Barrett	1525	0 - 1
Malcolm Jones	1242	1 - 0
Eamon Murphy	1316	0 - 1
John Smith	1723	0 - 1

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

1224 = (7318 + 400 * (1 - 4)) / 5)