Event: Division 2

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Opponent Rating Result
Michael Mason 1600 1 - 0
Marek Ciorga 1601 1 - 0
Melvin Steele 1581 1 - 0
Barrie Quin 1556 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1985 = (6338 + 400 * (4 - 0)) / 4)

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