Event: Division 2

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Opponent Rating Result
Ralph Barraclough 1558 0 - 1
Paul Edwards 95 0 - 1
Ian Goater 1492 ½ - ½
Will Lilburn-Quick 1463 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

852 = (4608 + 400 * (0 - 3)) / 4)

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