Event: 6-Board Division 2

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Opponent Rating Result
Colin W Field 1468 ½ - ½
John Scotter 1476 1 - 0
Ewan Black 1539 ½ - ½
David Harrison 1355 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1660 = (5838 + 400 * (2 - 0)) / 4)

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