50 Fittest Female Athlete in the World with Bonus (Instagram)

43. Mariana Pajon / BMX CYCLIST

With more than a dozen world championship titles and an Olympic gold medal to her name, Colombian BMX rider Pajón is considered one of the best in the world at the age of 24. In addition to practicing her killer moves on the bike, the 5’2”, 117-pound Pajon plays tennis, does Pilates exercises and incorporates gymnastic moves into her workouts.