Event: Bremridge league

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Opponent Rating Result
Trefor F Thynne 170 1 - 0
Walter Braun 203 1 - 0
Trefor F Thynne 170 1 - 0
Jonathan WR Underwood 192 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

484 = (735 + 400 * (3 - 0)) / 4)

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