Event: WMA Autumn League Division 1

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Opponent	Rating	Result
Peter R Kitson	1600	0 - 1
Robert C Stern	2008	0 - 1
Kevin Hurney	2002	0 - 1
Nigel S Towers	1744	0 - 1
Rob Sutton	1680	0 - 1
Nigel S Towers	1757	0 - 1
Peter R Kitson	1600	0 - 1
Robert C Stern	2008	0 - 1
Kevin Hurney	2002	1 - 0
Nigel S Towers	1744	0 - 1
Rob Sutton	1680	0 - 1
Nigel S Towers	1757	0 - 1

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

1465 = (21582 + 400 * (1 - 11)) / 12)