Event: 2023 Manx Summer Weekend

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Opponent Rating Result
Paul Smith 1697 0 - 1
John Griffin 1554 1 - 0
Neil T Davies 1893 0 - 1
Ben Bosworth 1326 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1418 = (6470 + 400 * (1 - 3)) / 4)

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