Event: SCCA Division 2 19/20

PDF Excel

Opponent	Rating	Result
David Robertson	99	1 - 0
Dave Johnson	0	1 - 0
Judith Heffer	147	0 - 1
David P Green	116	0 - 1
Laurie Pott	144	0 - 1

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

21 = (506 + 400 * (2 - 3)) / 5)