Event: Division 1

PDF Excel

Opponent	Rating	Result
Graham K Brown	148	0 - 1
Robert Ashworth	159	0 - 1
Patrick Baker	133	½ - ½
Alex Hope	126	0 - 1

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

-159 = (566 + 400 * (0 - 3)) / 4)