Event: D&DCL Div 3

PDF Excel

Opponent	Rating	Result
Benjamin Lester	0	½ - ½
Chris A Fraser	1552	0 - 1
Gilberto Templo	1107	0 - 1
J Martin Gibson	1112	1 - 0

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

843 = (3771 + 400 * (1 - 2)) / 4)