Event: Division One

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Opponent Rating Result
Philip J Holt 2155 1 - 0
Jonathan E Swindells 2238 1 - 0
Andrew C Southall 2097 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2563 = (6490 + 400 * (3 - 0)) / 3)

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