FirstRox

Pacing calculator

A HYROX pacing calculator with real split targets

Pick a finish time and your division. FirstRox turns it into a target for every run, station and transition, then lets you test what-ifs.

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What you get

  • Recommended targets for all 8 runs, 8 stations and the transitions
  • Fixed ratio tables: formula-based and deterministic, never AI-generated
  • Adjust for your strength profile: run-strong or station-strong
  • "What if" sliders: see how a faster SkiErg or wall ball set changes your total
  • Reference average and median finish times from published analyses, with sources
  • Live ahead/behind feedback against your targets during a simulation

A target for every segment

A single finish time is hard to race to. Splitting it into segment targets gives you checkpoints: you know within a station or two whether you are on pace, and you can adjust before it is too late.

Play with the numbers

Drag one station faster and see exactly what it does to your overall time. It is a quick way to decide where your next training block will pay off most: the run, the sleds or the wall balls.

FirstRox is coming soon to iOS and Android. Join the waitlist to get notified at launch.

Get early access

One email when we launch. No spam. Unsubscribe any time.