BBrick to Brick
Planning tool

Triathlon finish-time scenario planner

Scale recent swim, bike and run splits separately, then make every pace assumption visible. The result is a planning range—not a promised finish time.

Recent race splits

Enter moving time for each discipline in minutes. Do not include transitions here.

Target-distance pace adjustment

Enter the percentage you expect each discipline's pace to slow at the longer distance. Use a negative value only when there is a clear reason to expect faster pace.

Central scenario

3h 05m

Sensitivity range at ±5% of moving time: 2h 56m–3h 14m

swim
0h 32m
bike
1h 28m
run
0h 57m
transitions
0h 08m

How this finish-time scenario works

Each source split is converted to the target distance at the same discipline pace, then multiplied by the adjustment you chose. Transition time is added separately. The tool does not hide a universal fatigue factor or infer readiness from one result.

How to choose useful adjustments

Use comparable training, course profile, swim setting, likely weather and rehearsed fueling. Build a conservative scenario and an optimistic scenario instead of treating one output as a forecast. A short-course result cannot capture the recovery, pacing or nutrition demands of long-course racing.

Planning limitation: this tool is arithmetic, not a validated physiological prediction model. Confirm race cutoffs and course details in the current athlete guide.

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