Event: 4-Board Division 1

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Opponent Rating Result
Stephen Philp 128 0 - 1
Steve Donoghue 75 1 - 0
Steve J Thrower 104 1 - 0
Steve J Thrower 104 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

303 = (411 + 400 * (3 - 1)) / 4)

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