15 minute AMRAP
The Pacesetter
Cardio capacity · Engine Room · intensity 3 of 5
The workout
As many rounds as possible in 15 minutes of:
Overview
The Pacesetter is 10 combat sprawls, 20 air squats, and 30 mountain climbers. The work moves through the full body, the quads, and the midline instead of sitting on one muscle.
Muscles worked
Full body
Midline
Quads
Energy systems
These are overlapping contributions. This workout is not assigned to one energy system.
- Glycolytic: Low
- Oxidative: High
- Neuromuscular: Low
Training effect
Immediate demand
15 minutes, intensity 3 of 5. Today the limiter is the mountain climbers.
Intended stimulus
The same capacity work, with movements you can repeat for the whole clock. On this workout that is 10 combat sprawls, 20 air squats, and 30 mountain climbers.
Repeated practice
Repeat the same workout and compare the score. What can change over weeks is how long that pace lasts. One time through does not produce that change.
Body-composition context
Body weight changes with the rest of how you eat and train. This workout is one piece of work on one day.
Expected feel
30 mountain climbers is where the round gets hard. The other movements still have to be finished after it.
Pacing
Find your breathing rhythm on the squats. Lock the plank tight on the sprawls.
Keep the later rounds moving at the same size as the early ones. Do not drop the mountain climbers to keep the other sets moving.
The movements
Combat Sprawls
You must land with your entire foot completely flat on the mat when returning from the plank. Landing on your toes in this wide stance places severe shearing force on the knee capsule and kills your ability to rebound.
What not to do. Landing the feet inside the hands, leaving no room to lift the chest.
Air Squats
Let gravity do the work on the way down. Pull yourself into the bottom quickly, then explode up. Use your arms for rhythm.
What not to do. Cutting the depth once the legs burn, so the hip crease stops above the knee.
Mountain Climbers
Keep your shoulders stacked directly over your wrists. If you drift backward, you lose leverage and the movement slows down completely.
What not to do. Landing the driving foot short, so the knee never gets near the chest.
Why these movements
The work moves through the full body, the quads, and the midline instead of sitting on one muscle.
Scaling
Keep the round short enough to repeat. Drop reps so you can stay moving, rather than resting the round into a different workout.
Combat Sprawls
- Step the feet. Step back and step in instead of jumping. Same shape, no impact.
- Hands elevated. Hands on a bench or step so the floor never comes all the way up to you.
- No jump at the top. Stand tall and reach instead of leaving the floor.
Air Squats
- To a seat. Squat to a chair or box and stand back up. Lower the seat as you improve.
- Hold a support. Hands on a doorframe or chair back to sit deeper than balance allows alone.
- Shorter range. Go only as deep as you can control, and stop before the heels lift.
Mountain Climbers
- Low impact. Keep one foot down throughout — march the pattern instead of running it.
- Slower cadence. Same movement, fewer beats per minute. Cadence is the dial, not the shape.
Mistakes and who it is for
- Opening the combat sprawls at a sprint makes the mountain climbers the piece that falls apart.
- Resting until you feel fresh between movements removes the point of keeping them in one round.
- Spending the first minutes hard leaves the later rounds as a different, slower workout.
Suited to someone who wants 15 minutes through Combat Sprawls, Air Squats, Mountain Climbers.
Scoring and progression
Work through the movements in the order listed, then start the next round. Your score is the number of complete rounds plus any reps of the round you were partway through when the clock hit zero — written as rounds plus reps, so seven full rounds and twelve reps is7+12.
Progression is repeating this workout and comparing that score. The page does not promise a change from one time through.
Related workouts
- Overwatch
Same quads and midline, longer clock
- The Barricade
Same quads and midline, longer clock
- The Endurance Engine
Same quads and midline, longer clock
Run it with friends
The Pacesetter runs on a shared countdown: share a rally link, everyone gets the same 15-minute clock, and the leaderboard updates as people log rounds.