Event: Division 3

Opponent Rating Result
Frank C Jimenez 1626 ½ - ½
Frank C Jimenez 1633 1 - 0
Roland Robson 1524 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1861 = (4783 + 400 * (2 - 0)) / 3)

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