Event: Rainham Championship Div 2

PDF Excel

Opponent	Rating	Result
Robert Springett	1656	½ - ½
Tyrone R Jefferies	1548	0 - 1
Robert Springett	1658	½ - ½
Chris D Brown	1606	0 - 1
Chris D Brown	1606	0 - 1
Tyrone R Jefferies	1578	1 - 0

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

1475 = (9652 + 400 * (1 - 3)) / 6)