Event: TCL Division 4

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Opponent	Rating	Result
Alan H Davies	92	0 - 1
Surinder Virdee	43	1 - 0
Andy Proudfoot	106	0 - 1

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

-53 = (241 + 400 * (1 - 2)) / 3)