Event: Summer Knights

PDF Excel

Opponent	Rating	Result
Ben Hall	0	1 - 0
Peter Tutykhin	1723	1 - 0
Alan H Palmer	1733	½ - ½
Dmitry Kolobkov	1855	0 - 1

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

1428 = (5311 + 400 * (2 - 1)) / 4)