Event: IM Brown Shield

PDF Excel

Opponent	Rating	Result
David J Hambly	1783	0 - 1
Chris R Tinker	1709	1 - 0
Lackson Mzizi	1878	0 - 1

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

1657 = (5370 + 400 * (1 - 2)) / 3)