Event: Division 2

PDF Excel

Opponent	Rating	Result
Andrew E James	137	1 - 0
Michael Ashworth	184	0 - 1
Steve J Dyer	128	1 - 0
Chung W Ho	124	1 - 0
John Lightowler	138	1 - 0
Michael Ashworth	184	0 - 1
David O Vaughan	155	0 - 1
Chung W Ho	118	½ - ½
Michael Ashworth	188	0 - 1
Ronald C Andriessen	120	½ - ½

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

148 = (1476 + 400 * (4 - 4)) / 10)