Event: 1st Cornwall Autumn U1550 2022

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Opponent Rating Result
James Wallman 1386 0 - 1
Jonathan Ellis 1177 0 - 1
John James 0 0 - 1
Rebecca LG Gardiner 1270 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

558 = (3833 + 400 * (0 - 4)) / 4)

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