Event: Division One

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Opponent Rating Result
Alistair Hill 2249 0 - 1
Gary Senior 2195 ½ - ½
Alexandros N Ethelontis 2063 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2169 = (6507 + 400 * (1 - 1)) / 3)

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