Event: South Cheshire Shield

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Opponent Rating Result
Thomas Chapman 1503 0 - 1
Andrew Crosby 1464 1 - 0
Finlay Charbonneau 1503 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1490 = (4470 + 400 * (1 - 1)) / 3)

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