Event: Doncaster League

PDF Excel

Opponent	Rating	Result
Alan Bramall	141	1 - 0
Pete Micklethwaite	154	1 - 0
Zak Tomlinson	108	0 - 1
Martin McGowan	91	1 - 0
Colin Parrish	93	1 - 0
Ken Hunter	149	½ - ½
Peter Domonkos	97	1 - 0

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

348 = (833 + 400 * (5 - 1)) / 7)