Event: Burton one-hour tournament

PDF Excel

Opponent	Rating	Result
David J Pickering	1735
Trevor C Bould	0	1 - 0
Joe Parker	1475
Piotr Natoniewski	1438
Anushka M. Ramawickrama	1679
Nigel Beard	1530
Ryan L. Smith	1868
Roger Bird	0
Graeme Drayton	1323

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

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