Event: WMA Spring League Division 2

PDF Excel

Opponent	Rating	Result
David Cleak	0	½ - ½
George Mitchell	0	1 - 0
Tim A Lane	70	0 - 1
Colin Woodall	0	1 - 0
Jack Huffer	0	½ - ½
Richard D Leaper	70	1 - 0
N Pither	0	1 - 0
Peter Smith	70	½ - ½
Peter J R Oliver	0	1 - 0
David Cleak	0	½ - ½
George Mitchell	0	1 - 0
Tim A Lane	70	½ - ½
Colin Woodall	0	1 - 0
Jack Huffer	0	½ - ½
Richard D Leaper	70	0 - 1
N Pither	0	0 - 1
Peter Smith	70	0 - 1
Peter J R Oliver	0	½ - ½

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

90 = (420 + 400 * (7 - 4)) / 18)