Event: B&DCL Div 3

PDF Excel

Opponent	Rating	Result
Robert Powell	1648	1 - 0
Simon Fox	1680	1 - 0
Daniel Miles	1702	½ - ½
Robert Powell	1648	0 - 1
Tim Rushworth	1400	1 - 0
John R Bowley	1599	0 - 1
Julian Schofield	1650	0 - 1

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

1618 = (11327 + 400 * (3 - 3)) / 7)