EVA KLOBUKOWSKA / by Molly Schiot

A member of the Polish track and field team, Klobukowska won a gold and bronze medal in sprinting at the 1964 Tokyo Olympic Games.  A mandated sex gender test three years later at the European Cup championships revealed a chromosomal disorder (Barr Body positive) that led to Klobukowska having "one chromosome too many".  While the extra chromosome did not provide a competitive advantage, Klobukowska was banned from professional sports and forced to return her medals.  Had she been tested a year later, she would have remained eligible under a new rule that any athletes with a Barr Body cell would be permitted to compete.

A member of the Polish track and field team, Klobukowska won a gold and bronze medal in sprinting at the 1964 Tokyo Olympic Games.  A mandated sex gender test three years later at the European Cup championships revealed a chromosomal disorder (Barr Body positive) that led to Klobukowska having "one chromosome too many".  While the extra chromosome did not provide a competitive advantage, Klobukowska was banned from professional sports and forced to return her medals.  Had she been tested a year later, she would have remained eligible under a new rule that any athletes with a Barr Body cell would be permitted to compete.