Event: D&DCL Div 1

PDF Excel

Opponent	Rating	Result
Ranjit Nath	1749	1 - 0
Andrew Robins	1788	½ - ½
D Martin Howard	1979	0 - 1
David Williams	1850	0 - 1

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

1742 = (7366 + 400 * (1 - 2)) / 4)