How accurate is the triathlon finish-time prediction?

It gives three strategy bands rather than one number. The bands are honest pacing scenarios — ride harder and the bike is faster but the run penalty grows. The fewer numbers you enter, the wider the range. It is a planning model, not a guarantee.

Why is my predicted run so much slower than my standalone run pace?

You never run a triathlon on fresh legs. Every kilometre comes after a hard bike. A typical age-grouper runs 8–25% slower off the bike than a fresh open run, and that penalty grows the harder you ride.

Race Blueprint

Build my Race Blueprint

Fill in what you know — even rough numbers work. You can leave fields blank; the range just gets wider.

1 · Your race

Distance

Pick a race (optional) Auto-fills course elevation, temp and wetsuit.

Race date (optional)

Your goal

2 · Swim

Sustainable pace per 100m (mm:ss) The pace you could hold for a long swim. Blank = we estimate (wider range).

Open-water swim Wetsuit

3 · Bike

FTP (watts, optional)

Body weight (kg)

…or flat long-ride speed (km/h) We use power if FTP + weight are given, otherwise speed.

4 · Run

Any recent time helps — fill whichever you have.

10K

Half

Marathon

Run durability — long runs & bricks: 3/5

5 · Course & day

Bike climbing (m)

Wind

Temp (°C)

First-timer at this distance

Weekly training hours

Saved to this device only. No account, no upload.