BaserunningIntermediateModerate load
Phone-Timed Double: The At-Home Home-to-Second Time Trial
A minimal-equipment time trial that turns two markers and a phone into a repeatable home-to-second stopwatch so runners can measure, film, and lower their real double time on their own.
⏱ ~20 min📋 4-6 full-speed timed reps with full recovery (60-90s) between, after 2-3 easy build-up runs
What you'll need
- Throw-down bases
- Stopwatch
- Phone/camera on tripod
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