Marielle is a Nike sponsored athlete and member of the Bowerman Track Club, specializing in the 5000M and 10,000M events. She competed in the 10,000M at the 2019 World Championships, the 10,000M finals at the 2016 Olympics in Rio and the 5000M at the 2015 World Championships. At the University of Texas, she became a two-time NCAA All-American in the 5,000M and 10,000M, and won the 5000M title at the 2014 NCAA Outdoor Track & Field Championships.

Marielle is a member of The RELAY Squad. Learn more about The RELAY.