Event: Division 2

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Opponent Rating Result
Jim Rowlands 1372 0 - 1
Tony Golding 1315 0 - 1
Richard Collis 1463 0 - 1
Richard Kirk 1158 1 - 0
Mark Batouzian 0 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

982 = (5308 + 400 * (2 - 3)) / 5)

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Opponent Rating Result
Benjamin McGurrell 0 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-400 = (0 + 400 * (0 - 1)) / 1)