Event: Summer League Section 1

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Opponent Rating Result
Peter T Perkins 1649 ½ - ½
Sebastian Dworniak 1529 1 - 0
Thomas L Hackett 1727 0 - 1
Richard O Callis 1675 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1545 = (6580 + 400 * (1 - 2)) / 4)

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