Event: B&DCL Div 4

PDF Excel

Opponent	Rating	Result
Tony Ackerman	1512	1 - 0
Adem Avci	1530	1 - 0
David Arorash	1597	0 - 1
Michael N Davidson	1446	1 - 0
John E Harris	1593	1 - 0
Roger D Howell	1449	0 - 1
Michael Tew	1240	1 - 0

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

1652 = (10367 + 400 * (5 - 2)) / 7)