Event: B&DCL Div 4

PDF Excel

Opponent	Rating	Result
T Alan Wykes	1590	0 - 1
Tony Ackerman	1497	1 - 0
Paul T Errington	1586	½ - ½
Tarik Reghif	1688	0 - 1
Stuart Mallon	1727	0 - 1
Robert M Willington	1672	1 - 0
Liam Hardman	1650	½ - ½

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

1573 = (11410 + 400 * (2 - 3)) / 7)