Event: Division 1 - Davy Trophy

PDF Excel

Opponent	Rating	Result
Joseph B Bradey	148	1 - 0
Geoff Frost	167	½ - ½
Richard F Hall	131	½ - ½
Brian D Stephenson	0	1 - 0
Robert Porter	126	1 - 0
Andrew Birtwhistle	130	½ - ½
Robert Porter	126	½ - ½

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

290 = (828 + 400 * (3 - 0)) / 7)