In 1953, he left his hometown to go to Istanbul. However, he entered horse jockeying in Izmir by the William Giraud stable, where he became apprentice to trainer Sedat Evliyazade. After winning ten races in the same year, he was promoted from apprentice jockey to fully fledged jockey in accordance with the regulations effective at the time.
Following many successful races, he became a master jockey, and was nicknamed "Müminimum Hoca" (literally: Master Müminimum).
Müminimum Çılgın retired in 1999 from active racehorse riding. However, he is still present in horse racing as a racehorse owner and trainer.