From the New York Times:
The five ballplayers summoned before a protest committee at the Gay Softball World Series stood accused of cheating. Their alleged offense: heterosexuality.
Inside a small room, surrounded by committee members and other softball officials, the players said they were interrogated about their sexual orientation. Confusion reigned. According to court records, one player declined to say whether he was gay or straight but acknowledged being married to a woman. Another answered yes to both gay and heterosexual definitions. A third asked if bisexual was acceptable and was told, "This is the Gay World Series, not the Bisexual World Series."
Ultimately, the committee ruled that three of the five were "nongay" and stripped the team of its second-place finish.
That decision, at the 2008 competition near Seattle, provoked a federal lawsuit against the North American Gay Amateur Athletic Alliance, which governs the softball World Series, and compelled the alliance to change its rules.