Event: Division 2

PDF Excel

Opponent	Rating	Result
Michael Jackson	175	1 - 0
Paul May	154	½ - ½
Robert A Maltby	139	½ - ½
Max Parkhouse	138	0 - 1
Colin Weller	122	½ - ½
Frank T Sheldrick	143	0 - 1
Ian Carrigan	110	0 - 1

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

26 = (981 + 400 * (1 - 3)) / 7)