Event: Division 3

PDF Excel

Opponent	Rating	Result
R (Bob) Abrahart	113	0 - 1
Andrew P Sutton	134	½ - ½
Keith W Roper	137	0 - 1

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

-139 = (384 + 400 * (0 - 2)) / 3)