Event: OTB Club Championship

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Opponent Rating Result
Steven JL Rix 2019 ½ - ½
Nic Charles 1296 1 - 0
Huw D Jacob 1618 1 - 0
John Cawdery 2086
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1911 = (4933 + 400 * (2 - 0)) / 3)

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