Event: Roger Goldsmith Div 2

PDF Excel

Opponent	Rating	Result
Michael MJ Osborn	1575	0 - 1
Adrian Hall	1435	0 - 1
Mike Angel	1579	½ - ½

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

1263 = (4589 + 400 * (0 - 2)) / 3)