Event: Hepolite (Rapidplay)

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Opponent Rating Result
Phil R Watson 2143 0 - 1
Phil R Watson 2143 0 - 1
Billy Lephard 1490 1 - 0
Billy Lephard 1490 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1617 = (7266 + 400 * (1 - 3)) / 4)

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