Theron
Your Adaptive Triathlon Training Plan
Theron launched on March 4, 2026.
What it does
Train smarter with a dynamic coach. Theron uses HRV and sleep data to adjust your workouts daily. Apple, Garmin, Coros, Wahoo or Strava integration. 30 days for free.
Train smarter with a dynamic coach. Theron uses HRV and sleep data to adjust your workouts daily. Apple, Garmin, Wahoo or Strava integration. 30 days for free.
Your Adaptive Triathlon Training Plan , whether you're peaking for race day, building base, or staying race-ready. Powered by Apple, Garmin, Wahoo and Strava data. Old-school training plans ignore how your body actually feels. Theron's AI-powered coaching fixes that. Theron reads your recovery data and adjusts your plan. Old-school plans ignore how your body feels after 4 hours of sleep. Injury or overtraining from rigid plans is the main reason beginners quit before race day. Life happens. Missed a session? Theron automatically recalculates your week so you don't have to. Always know your fitness trend. See exactly how your swim, bike, and run capacity improves. Theron uses scientifically…from theron.app
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TransitionMay 2026 · transition.fun · ▲76Hey HN, I’m Alex, a triathlete, dad, and software engineer. I’ve been building Transition — an app for triathletes that creates adaptive training plans based on your goals, schedule, and workout data (Garmin, Strava, etc). Most plans are static, which never really worked for me as a parent and someone with an unpredictable schedule. Transition adjusts every week using your actual workouts and progress, so the plan changes when you miss a session, set a new PR, or need to shift your priorities. I built this because nothing else was flexible enough for my life, and I’m curious if others have…
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