Event: Thornaby Rapidplay Ladder

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Opponent Rating Result
Nick Tadd 1265 1 - 0
Chris Swales 1653 0 - 1
Michael J Creaney 1666 0 - 1
Joseph Machin 1337 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1280 = (5921 + 400 * (1 - 3)) / 4)

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