Bieler's penalty-kick tally early in the game opened the scoring and he set up another first-half goal by Soony Saad for Eastern Conference-leading Kansas City 13-9-6), which extended its lead over second-place Montreal and New York to three points.
C.J. Sapong also scored for SKC.
Columbus fell to 9-15-5 with the loss, its first under interim Manager Brian Bliss.
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