Event: Division One

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Opponent Rating Result
Michael W Healey 213 0 - 1
Alexandros N Ethelontis 194 ½ - ½
James Lyons 136 1 - 0
Salim Kriman 171 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

79 = (714 + 400 * (1 - 2)) / 4)

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