Dallas 1/2 Marathon 2025. The tdf half marathon starts & finishes on the white rock lake trail outside of the dallas arboretum & features 13.1mi around white rock lake & into the beautiful. Always visit the race's website for the most complete and accurate race information.
The starting time for participants in the marathon, half marathon, the relays, and 50k ultra is 8:00 a.m. For each race, you’ll find the history of the half marathon and the course, the most recent year’s course maps, elevation profiles, runner reviews, pricing, and.