Event: D&DCL Div 2

PDF Excel

Opponent	Rating	Result
David Williams	1870	0 - 1
Brian Lever	1522	½ - ½
Justin Smith	1597	0 - 1
Roger W Walker	1655	½ - ½

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

1461 = (6644 + 400 * (0 - 2)) / 4)