Event: Division 3

PDF Excel

Opponent	Rating	Result
Susan E Chadwick	111	1 - 0
Philip Crompton	107	0 - 1
Martin Lubbock	75	½ - ½

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

98 = (293 + 400 * (1 - 1)) / 3)