IronSplit
IronSplit Plans

Choose your plan

Start free. Go Athlete for unlimited bike power plans, or Coach to plan for the athletes you train.

Free$0Get a feel for it.
  • Full race finish predictor
  • One bike power plan
  • Save strategies on this device
  • Start free
Athlete$69/yrFor racing your own plan.
  • Everything in Free
  • Unlimited bike power plans
  • Course-aware optimal pacing
  • Save and sync across devices
Coach$215/yrFor coaching other athletes.
  • Everything in Athlete
  • Roster unlimited athletes
  • Build and deliver plans to them
  • Each athlete gets their own .fit
Why the optimizer

Built for triathletes who pace to the course

A planning tool, not a guess. Give it your numbers and a mapped race, and it returns a power plan tuned to the course profile, plus the time it saves over riding steady. Estimates, but grounded in a real model.

  • The optimal plan for your exact course

    Not a flat target. The exact watts to hold on every climb, descent, and flat, computed for the specific race you picked.

  • A real physiological and aerodynamic model

    Built on FTP or critical power, W' (anaerobic work capacity), CdA, Crr, rider and bike mass, and riding position: the dials you already tune.

  • Know the minutes you save

    It tells you how much time the plan saves versus riding a steady target, which is the whole edge of pacing to the course.

  • Course-aware, not guesswork

    It reads the real elevation and gradient profile of the race, so the plan matches the road you will actually ride.