Event: All Play All

PDF Excel

Opponent	Rating	Result
Robin J Cubbon	1072	0 - 1
Peter W Leask	1191	1 - 0
Anthony Stenton	1669	0 - 1
William F Harris	1592	0 - 1
Clifford H Walker	1509	½ - ½
Michael Williams	1395	0 - 1
Anthony Stenton	1596	0 - 1
Thomas Overthrow	1572	Adjourned
Patrick Dillon	1661	1 - 0

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

1311 = (11685 + 400 * (2 - 5)) / 8)