Structured Interval Workouts: Pyramids & Ladders on the Erg
Pyramids and ladders add progressive structure to interval training. Instead of uniform repeats, these formats challenge you with changing interval lengths that test pacing discipline, mental toughness, and the ability to sustain quality under accumulated fatigue. They are staples in rowing programs at every level.
Pyramid Rowing Workout
Read the full Pyramid Rowing Workout guide →
A pyramid workout uses intervals that increase to a peak, then decrease back down. The ascending side builds cumulative fatigue; the descending side tests your ability to maintain pace when tired. Shorter intervals are faster; longer intervals are more moderate.
Protocol: Distance Pyramid
Pattern: 250m → 500m → 750m → 1000m → 750m → 500m → 250m
| Interval | Target Pace | Rate | Rest |
|---|---|---|---|
| 250m | 2K pace minus 2s | 30-32 spm | 1:00 |
| 500m | 2K pace | 28-30 spm | 1:30 |
| 750m | 2K pace plus 2s | 26-28 spm | 2:00 |
| 1000m (peak) | 2K pace plus 3-4s | 26 spm | 2:30 |
| 750m | Match ascending split | 26-28 spm | 2:00 |
| 500m | Match ascending split | 28-30 spm | 1:30 |
| 250m | Best effort | 32+ spm | — |
Total work: 4,000m. Include a 10-minute warm-up and 5-minute cool-down.
Why Pyramids Work
Pyramids train multiple energy systems in one session. The short intervals at the start and end develop speed and anaerobic power. The peak 1000m interval develops threshold endurance. The descending half — where you must match your ascending splits under fatigue — develops the race-day skill of maintaining composure when tired.
Pyramid Variations
- Time pyramid: 1:00 → 2:00 → 3:00 → 4:00 → 3:00 → 2:00 → 1:00
- Mini pyramid: 100m → 200m → 300m → 200m → 100m (sprint-focused, 5 reps)
- Extended pyramid: 500m → 1000m → 1500m → 2000m → 1500m → 1000m → 500m (8,000m total, for advanced rowers)
Ladder Rowing Workout
Read the full Ladder Rowing Workout guide →
Unlike a pyramid, a ladder goes in one direction only — typically ascending. Each rung is longer and the challenge increases linearly. Ladders are simpler to pace and excellent for building sustained effort tolerance.
Protocol: Ascending Time Ladder
Pattern: 1 min → 2 min → 3 min → 4 min → 5 min
| Rung | Effort | Rate | Rest |
|---|---|---|---|
| 1 minute | RPE 9 (near sprint) | 32-36 spm | 2:00 |
| 2 minutes | RPE 8 | 30-32 spm | 2:00 |
| 3 minutes | RPE 7-8 | 28-30 spm | 2:00 |
| 4 minutes | RPE 7 | 26-28 spm | 2:00 |
| 5 minutes | RPE 7 (threshold) | 26-28 spm | — |
Total work: 15 minutes of hard effort. Include warm-up and cool-down.
Protocol: Descending Distance Ladder
Pattern: 2000m → 1500m → 1000m → 500m → 250m
| Rung | Target Pace | Rate | Rest |
|---|---|---|---|
| 2000m | 2K pace plus 5-8s | 26 spm | 3:00 |
| 1500m | 2K pace plus 3-5s | 28 spm | 2:30 |
| 1000m | 2K pace plus 1-3s | 28-30 spm | 2:00 |
| 500m | 2K pace | 30-32 spm | 1:30 |
| 250m | Best effort | 32+ spm | — |
Total work: 5,250m. Gets progressively faster and shorter.
Ladder Variations
- Double ladder: Go up then back down (ascending + descending = pyramid-like)
- Rate ladder: Same distance each rung, but increase stroke rate by 2 spm per rung
- Calorie ladder: 10 cal → 15 cal → 20 cal → 25 cal → 30 cal (uses PM5 calorie display)
Pacing Strategy for Both Formats
- Intensity scales inversely with interval length. Shorter intervals should be faster; longer intervals should be more moderate. Do not start the long intervals too fast.
- The rest period is recovery, not a race. Paddle gently or sit still. Rushing rest compromises the quality of the next interval.
- Track your splits. Write down target splits before you start and compare after. Consistency across equivalent intervals (especially descending pyramid) is the measure of success.
Frequently Asked Questions
What is the difference between a pyramid and a ladder workout?
A pyramid goes up AND back down (e.g., 250-500-750-1000-750-500-250m). A ladder only goes one direction — ascending (1-2-3-4-5 minutes) or descending (5-4-3-2-1 minutes). Pyramids train pacing under fatigue; ladders provide a more linear challenge.
Can beginners do pyramid or ladder workouts?
Yes, with modifications. Use lower intensities (RPE 5-7), longer rest periods (2-3 minutes), and focus on consistency rather than speed. Both formats are excellent for learning effort management across varying durations.
How much rest should I take between intervals?
For pyramids: rest for roughly half the duration of the interval you just completed. For ladders: use a fixed 2-minute rest between all intervals, or match the interval duration (1:1 ratio). Beginners should err toward more rest.
Should I go faster on the descending side of a pyramid?
Aim to match the same split you hit on the ascending side for each equivalent distance. Being able to replicate splits under fatigue is the core skill this workout develops. If you can go faster, your ascending pace was too conservative.
Related Resources
- High-Intensity Rowing Workouts — HIIT, sprints, and interval protocols
- Rowing Workouts by Duration — 10 to 60 minute sessions
- Beginner Rowing Workout — first session guide
- Race Pace Calculator — calculate your target splits
- 2K Race Plan Calculator — build a race pacing plan
- How to Improve Your 2K Time — complete training program