Crossover Athlete
From Openwaterpedia
noun - Crossover athlete is an athlete who competes in both pool swimming and open water swimming events or an athlete who competes in both open water swimming and triathlons or other endurance sports. An athlete who previously competed in pool swimming, triathlons or other endurance sports and now focuses on open water swimming or vice versa.
He was a great crossover athlete who swam in the 1500-meter freestyle and the 10K event at the Olympics.
