Pfitz Pace Tool

Inputs

Race Summary

Distance
Time
Pace (mi / km)

Goal Marathon

Goal Marathon Time
Marathon Pace (mi / km)

Equivalent Race Times

DistanceTime

Training Paces

ZonePace / miPace / km

Heart Rate Zones

Zone% Max HRBPM (Max)% HRRBPM (HRR)
© 2025 Unofficial training pace tool inspired by Advanced Marathoning by Pete Pfitzinger & Scott Douglas. No affiliation or endorsement. Support the authors: https://a.co/d/fvw1C0c

Inputs

Race Summary

Distance
Time
Pace (mi / km)

Equivalent Race Times (FRR)

DistanceTimePace (per mile)

Training Paces (FRR)

ZonePace / miPace / km