Event: Division 3

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Opponent Rating Result
Jonathan Ellinsfield 1532 1 - 0
Thomas Pownall 1601 0 - 1
Andrew Johnson 1500 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1544 = (4633 + 400 * (1 - 1)) / 3)

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