Event: Tonbridge

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Opponent Rating Result
Shiva Satish 1083 0 - 1
Robert Raguzin 1243 0 - 1
David Cazac 1115 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

747 = (3441 + 400 * (0 - 3)) / 3)

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