Event: Iceni Live Classic 4 Challengers

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Opponent Rating Result
Heather Enid Wells 1249 1 - 0
Graham R Jones 1424 1 - 0
Gerry Clayton 1483 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1519 = (4156 + 400 * (2 - 1)) / 3)

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