
SplitSync
Agentic AI for Triathlon Training
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.
Does the same job
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Im 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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