Event: Clough (Handicap)

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Opponent Rating Result
Nicholas Waite 1381 1 - 0
Andrew Walker 1399 0 - 1
Mick Overend 1495 0 - 1
Adamjeet Singh 1556 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1258 = (5831 + 400 * (1 - 3)) / 4)

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