Event: Division 3

PDF Excel

Opponent	Rating	Result
Karol Grzybowski	137	0 - 1
Peter J Windows	124	1 - 0
Neville Layhe	137	0 - 1
Andrew Barker	111	1 - 0
Jon EW Blackburn	139	½ - ½
John Y Yee	135	1 - 0
John R Day	130	1 - 0

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

245 = (913 + 400 * (4 - 2)) / 7)