Event: B&DCL Div 5

PDF Excel

Opponent	Rating	Result
John Harrison	75	1 - 0
Greg C Webb	91	0 - 1
David F Burt	102	1 - 0
Michael Tew	81	1 - 0
Tim Jones	107	0 - 1
Peter Ashwood	80	0 - 1
Roger D Howell	91	0 - 1
Christine A Roberts	107	0 - 1

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

-8 = (734 + 400 * (3 - 5)) / 8)