Event: IM Brown

PDF Excel

Opponent	Rating	Result
Ismet Berisha	139	0 - 1
Paul Howden	147	0 - 1
Dave Colledge	141	0 - 1
Richard Hersey	131	0 - 1
Richard Wilson	115	0 - 1

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

-265 = (673 + 400 * (0 - 5)) / 5)