Event: Burton one-hour tournament

PDF Excel

Opponent	Rating	Result
Roger Bird	0
Nigel Beard	1550	1 - 0
Joe Parker	1469
Edmund M. Jones	0
Anushka M. Ramawickrama	0
Vinod M Fernando	1919
Trevor C Bould	0
Graeme Drayton	1316
David J Pickering	1735
Piotr Natoniewski	1438

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

1950 = (1550 + 400 * (1 - 0)) / 1)