Race day planning for serious triathletes
Add swim, bike, run and transitions to predict your finish time, test pacing changes, and compare complete race scenarios in seconds.
How it works
Build your race-day plan in minutes
Set your race, model your splits, and save the versions you want to compare later. TriCalc keeps the process fast enough to use between sessions, not just once at the start of a training block.
Set your race
Choose Sprint, Olympic, middle-distance, full-distance, or a custom setup and start planning around the event you are actually training for.
Build the plan
Predict your finish from swim, bike, run, and transitions, or work backwards from a target time into realistic splits.
Save and compare
Keep realistic, ambitious, and best-case scenarios side by side, then reopen the right one whenever you want to refine it.
Race Time
Predict your finish
Build your race from swim, bike, run, and transitions to see your full projected time.
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Swim, bike, run, and transitions in one plan
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Time-led and pace-led inputs where they matter
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Standard presets plus custom race distances
Goal Time
Plan from a goal
Start with a target finish and turn it into a realistic swim-bike-run split plan.
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Work backwards from your target time
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Rebalance around your strongest discipline
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Feasibility feedback, not just raw splits
Save and Restore
Save & compare
Keep realistic, ambitious, and best-case race plans side by side and reopen them later.
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Save multiple versions of the same race
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Restore straight back into the right tool
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Compare plans without starting over
Explore the app
See TriCalc in action
From full race prediction to saved pacing plans, TriCalc gives triathletes a faster way to model race day, check training numbers, and come back to the plans that matter.





Plan the whole race
Model swim, bike, run, and transitions together instead of stitching race day together across separate tools.
Work from either direction
Predict your finish from the numbers you know, or reverse-plan from the target time you want to hit.
Keep every version
Download TriCalc for iPhone
Predict your finish time, reverse-plan race goals, and compare pacing scenarios in one focused app built for triathletes.