Event: Haslemere Trophy

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Opponent Rating Result
Jonathan G Young 1667 1 - 0
Freddie Hampshire 1255 1 - 0
Jonathan G Young 1667 0 - 1
Freddie Hampshire 1255 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1661 = (5844 + 400 * (3 - 1)) / 4)

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