Event: Lowestoft Championship

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Opponent Rating Result
David J Twitchell 1919 0 - 1
Mark A Nettleton 1514 ½ - ½
Chris Flynn 1609 0 - 1
Liam Chapman 1402 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1311 = (6444 + 400 * (0 - 3)) / 4)

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