Event: Club Championship

PDF Excel

Opponent	Rating	Result
Jim Sumner	2120	0 - 1
Malcolm R Peacock	2074	½ - ½
Phillip J Taylor	1947	1 - 0
Hambel M Willow	1868	0 - 1

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

1902 = (8009 + 400 * (1 - 2)) / 4)