Race Pace Planner

Begin with the mathematical average

Even pacing divides target time by distance. Official races often end with a partial kilometer or mile, so the planner includes that final fraction instead of rounding the course up or down.

• Use metric for kilometer splits and imperial for mile splits.
• The unit switch converts the same physical distance.
• Every valid strategy finishes at the entered target time after rounding.

Use variation as a scenario control

A faster-finish scenario gradually reduces pace time; a slower-finish scenario gradually increases it. The variation control changes the gap between early and late pacing, then the algorithm normalizes the complete plan back to the target duration.

Adapt the table to the course

The output does not model hills, wind, heat, aid stations, congestion, or fatigue. A perfectly smooth pace progression may be unrealistic on a variable course, so use cumulative checkpoints as the stable reference and adjust individual splits by effort.

• Do not force a faster finish if the early pace already exceeds current ability.
• Allow explicit time for planned stops rather than hiding them in pace.
• Practice the intended effort pattern before race day.