Event: Club Championship

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Opponent	Rating	Result
Vladislav Drezov	1000	0 - 0
Gennady Tabala	1000	1 - 0
Glyn D Valentine	1660	0 - 1
Matthew J Watson	1000	1 - 0
Dylan Whitney	1345	0 - 1
Ernest Wilkinson	1443	0 - 1
Christopher Brian	1165	0 - 1
Christopher Brooks-Green	800	0 - 0
Stephen J Emmerton	1644	0 - 1
Petru Floresc	1975	0 - 0
Chris P Hankey	1780	0 - 1
Stuart E Hull	1375	1 - 0

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

1246 = (12412 + 400 * (3 - 6)) / 9)