Training Zones
| Descriptors | Jack Daniels’ Eqivalent | My words.. | |
| Zone 1 | Active Recovery | ||
| Zone 2 | Aerobic Endurance | Easy Pace | Most of your volume done here. |
| Zone 3 | Tempo | Marathon Pace | |
| Zone 4 / Zone 5a | Lactate Threshold | Threshold Pace | Comfortably hard efforts. |
| Zone 5b | Aerobic Capacity | Interval Pace | Uncomfortably hard longish efforts @ the track. |
| Zone 5c | Anaerobic Capacity | Repetition Pace | Leg speed. for example, 200 |
