Juan Carlos Dyrzka
Juan Carlos Pablo Dyrzka was an Argentine hurdler who competed in the 1964 Summer Olympics and in the 1968 Summer Olympics.
His younger sister Emilia Dyrzka was also an athlete.
Personal bests
Outdoor- 200 metres – 21.6
- 400 metres – 46.85
- 800 metres – 1:52.2
- 110 metres hurdles – 14.93
- 400 metres hurdles – 49.82