Event: Div1

PDF Excel

Opponent	Rating	Result
Derek A Jarvis	171	1 - 0
James R Shore	142	1 - 0
Ray J Forey	170	0 - 1
Gary Haime	153	0 - 1

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

159 = (636 + 400 * (2 - 2)) / 4)