Event: Easter Rapidplay

PDF Excel

Opponent	Rating	Result
Stephen Rodgers	0	0 - 1
Jayden Wang	890	1 - 0
Jonathan Feasby	1519	0 - 1
Neil Sotheby	1152	1 - 0
Zhuoyi Lin	991	1 - 0

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

990 = (4552 + 400 * (3 - 2)) / 5)