Event: D&DCL Div 1

PDF Excel

Opponent	Rating	Result
Sam Clayton	124	0 - 1
Steve J Gibbs	147	1 - 0
Steve Bracey	148	1 - 0

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

273 = (419 + 400 * (2 - 1)) / 3)