Here is some clarity about jean Balukas:
http://en.wikipedia.org/wiki/Jean_Balukas
Another brief part:
Balukas was initially entered in both the men's and women's divisions of the 1987 B.C. Classic, a nine-ball competition. After notable controversy (detailed below), she competed only on the men's side. Along the way she trounced Keith McCready 11–3 (at the time the 17th-ranked male player by money list, and who guest-starred as obnoxious hustler "Grady Seasons" in the 1986 film The Color of Money). Balukas finished in a tie for 9th place among many of the best players in the world.
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Just to nitpick, it was The B. C. Open, not Classic. I was there when Jean beat McCready and was also at the Red Robin Diner with Keith, his backer, John Wright, Mike Zuglan, and someone else whose name escapes me now, after the match. IIRC, Keith's backer said they lost in the neighborhood of $3k on that match.