Event: Club Championship

PDF Excel

Opponent	Rating	Result
Peter E Jowett	188	0 - 1
Deborah Carter	69	1 - 0
Robert Hanson	155	½ - ½
Graham J Ashcroft	165	0(def) - 1

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

137 = (412 + 400 * (1 - 1)) / 3)