
SplitSync
Agentic AI for Triathlon Training
SplitSync launched on June 6, 2026 with 3 votes, #6,658 of 22,647 launches that month and more than 50% of that year's launches.
What it does
Most triathlon training means juggling a static PDF plan, a separate analytics app, and a $250/mo coach. SplitSync replaces all three. Tell it your race, fitness, and weekly hours — it generates a full week-by-week swim/bike/run plan with real base→build→peak→taper periodization, tuned to your own FTP, threshold HR, and swim CSS. Chat with any workout to adjust it. Coach-grade CTL/ATL/TSB analytics built in, + auto Strava sync. Free to start, one full AI plan, no card. Road -> Sprint -> IRONMAN.
SplitSync builds adaptive, week-by-week triathlon training plans powered by AI. Personalized for Sprint, Olympic, Half-Ironman (70.3), and Ironman. Start your first plan free.
The complete triathlon training platform. Adaptive plans for Sprint, Olympic, Half-Ironman (70.3), and Full Ironman races. Track swim, bike, and run workouts with advanced analytics. Coach creates a personalized triathlon training plan tailored to your goals and schedule. Choose from your upcoming races. Sprint, Olympic, Half-Ironman, or full Ironman distance. Tell us your fitness level, weekly hours for swim/bike/run, and preferred training days. Set training time, max session duration, equipment access, and any injuries to consider. AI creates your complete week-by-week plan with structured swim, bike, and run workouts. Everything you need to plan, train, and race. From AI-generated plans…from splitsync.net
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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…



AthleteData – AI coach for endurance athletes that messages you firstApr 2026 · athletedata.health · ▲9Im a triathlete and the data for my training lives in 6 apps: Garmin, Strava, WHOOP, Intervals.icu, Wahoo, Withings, Apple Health, sometimes Hevy. Every morning Id eyeball a few of them and make a call on whether to do the planned session. For the past month I have been building a thing that does this for me, and got it to the point where I use it myself every day. It OAuths into whatever platforms you connect, reconciles the activities (tbh harder than it sounds — same ride shows up in Strava, Garmin, and Wahoo with different timestamps and rounding), computes daily load and readiness, and…

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