Event: Division 3

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Opponent Rating Result
Tom Gordon 1781 0 - 1
Jerry Bowman 1656 0 - 1
John WF McAllister 1630 0 - 1
Andrew Last 1512 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1245 = (6579 + 400 * (0 - 4)) / 4)

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