Campfire Endurance Campfire Endurance Coaching

Find Your Training Zones

Enter a recent race result and we'll calculate your personal Campfire training zones — ZR through Z4 — built on the Jack Daniels VDOT method.

h m s
Your VDOT
—
ZR
RecoveryVery easy — active recovery, shakeout days
—
Z1
Easy / AerobicThe bulk of your mileage — easy runs, long runs
—
Z2
Steady / MarathonMarathon effort, steady-state work
—
Z3
Tempo / ThresholdComfortably hard — lactate threshold work
—
Z4
Speed / VO2maxHard intervals and short repetitions
—
Coach reference: underlying Jack Daniels paces
Easy (E)—
Marathon (M)—
Threshold (T)—
Interval (I)—
Repetition (R)—

These zones are a strong starting point, calculated from your race result. Your Campfire coach fine-tunes them against a real threshold effort and heart rate before they're locked into your training plan.