Event: Doncaster Handicap League

PDF Excel

Opponent	Rating	Result
Gordon Harrison	105	1 - 0
Martin McGowan	91	1 - 0
Robbie Merc	104	1 - 0
Zak Tomlinson	108	0 - 1
Neil S Shaw	115	1 - 0

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

345 = (523 + 400 * (4 - 1)) / 5)