Event: IM Brown Shield

PDF Excel

Opponent	Rating	Result
William Boothman	1765	1 - 0
Jim E Vickery	1833	½ - ½
Aaron Rich	1980	0 - 1
Matt Jones	1743	0 - 1

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

1730 = (7321 + 400 * (1 - 2)) / 4)