The pair of races, scheduled for Thursday, set the starting lineup for the season-opening Daytona 500.
Lochte, who resides in Daytona Beach, won gold medals at both the Athens and Beijing Olympics. He is a 12-time Olympic and World medalist. He currently holds the world record in the 800-meter freestyle relay as part of the American team and the world record for both the 200- and the 400-meter individual medley.
Lochte will deliver the starting command for the first of the two 150-lap races.