Race Execution OS · 70.3 & Long Course

From sign-up to the finish line , one executable plan.

You are not here for triathlon news. You are here for one answer: given your ability, your race and the conditions — how do you actually finish this 70.3?

Free · no sign-up · works on your phone on race morning

The questions that actually keep you up at night

Will I finish before the cutoff?

The Cutoff Navigator checks every gate, not just the finish.

Swim slow, bike OK, run alright — what time?

A finish prediction with risk bands, not false precision.

How much will hills, wind and heat cost me?

Course and conditions are built into every split.

How much should I carb, drink and salt per hour?

A fueling timeline to rehearse before race day.

Not one number — three honest scenarios

Aggressive · Realistic · Safe Finish

A single predicted time is a lie. We give you three full scenarios — each a real pacing strategy, not an error bar. Ride harder and the bike is faster but the run penalty explodes; ride within yourself and you finish strong.

Aggressive
Best case
Everything goes right
Realistic
Most likely
Balanced pacing
Safe Finish
Beat cutoff
Protect the legs
Why you can trust the cutoff calls

Every cutoff carries a source and a date

Triathlon’s hard problem is not maths — it is that races change route, cutoffs and aid stations year to year. So every rule shows its source, its last-verified date, and a link to confirm in the official Athlete Guide for your year. We tell you when a number is a generic template, not a verified figure.

TriPB is an independent planning tool, not affiliated with IRONMAN or World Triathlon. This is race-strategy guidance, not medical or nutritional advice — test every plan in training.

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Add TriPB to your home screen
Your race plan, one tap away — works offline on race morning.