Event: Division 4

PDF Excel

Opponent	Rating	Result
Andrew T Leadbetter	115	0 - 1
Clive N Ferry	129	1 - 0
Andrew Crosby	97	1 - 0
Caroline L Mountford	119	0 - 1
Sandra G Blackburn	112	½ - ½
Lukasz Michalek	110	½ - ½
David J Barker	102	½ - ½

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

112 = (784 + 400 * (2 - 2)) / 7)