Bears TC Pace Calculator

Bear Time (H:MM:SS):
Zone/Dist. Pace/mi SlowSlower end per mile Pace/mi FastFaster end per mile 400 m Slow (s)Split at slow end 400 m Fast (s)Split at fast end Pred. SlowFinish at slow end Pred. FastFinish at fast end
Recovery ‹what’s this?›

Very easy, conversational pace (<65% AeT) for active recovery.

Foundation ‹what’s this?›

Fundamental runs just below your aerobic threshold (AeT) to build your base safely.

Steady ‹what’s this?›

Comfortable endurance pace (≈75–85% VO₂ max) to improve aerobic capacity.

Tempo ‹what’s this?›

“Comfortably hard” sub-threshold effort – heavy but controlled breathing; sustain ~30–40 min.

Lactate Threshold ‹what’s this?›

Mike Scannell’s LT: pace where lactate production equals clearance (~4 mmol/L), held 20–60 min by elites.

Critical Velocity ‹what’s this?›

Tom “Tinman” Schwartz’s CV: highest constant aerobic pace—single words only; ~8–15 min.

5 K ‹what’s this?›

Estimated 5 000 m pace; typically ~95–98% VO₂ max.

3200 m ‹what’s this?›

Projected 3 200 m maximal-effort time.

1600 m ‹what’s this?›

Projected 1 600 m maximal-effort time.

800 m ‹what’s this?›

Projected 800 m maximal-effort time.

400 m ‹what’s this?›

Projected 400 m maximal-effort time.