Event: B&DCL Div 3

PDF Excel

Opponent	Rating	Result
Robert Powell	1689	1 - 0
Lindsay P Aris	1700	½ - ½
Stefan Matthews	1600	0 - 1
Paul T Errington	1596	½ - ½
Ron Salinger	1427	½ - ½
Sam Brewer	1348	0 - 1
Ellis Fretwell	1660	½ - ½

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

1517 = (11020 + 400 * (1 - 2)) / 7)