Workout Description
40 Rounds for Time
5 Pull-Ups
10 Push-Ups
15 Air Squats
Buy-Out: 3 mile Run
Why This Workout Is Extremely Hard
This is essentially Cindy (20-min AMRAP) doubled to 40 rounds, then followed by a 3-mile run. The average athlete finishes 20 rounds of Cindy in ~20 minutes; 40 rounds pushes 40-50+ minutes of continuous bodyweight work. Cumulative grip failure, chest fatigue, and leg burnout compound severely across that volume. The 3-mile run buy-out then demands sustained aerobic output on completely destroyed legs and shoulders, making this a brutal endurance test far exceeding standard Very Hard benchmarks.
Benchmark Times for BL40
- Elite: <47:00
- Advanced: 52:00-57:00
- Intermediate: 63:00-70:00
- Beginner: >122:00
Training Focus
This workout develops the following fitness attributes:
- Stamina (10/10): 200 pull-ups, 400 push-ups, and 600 air squats plus a 3-mile run represents extraordinary muscular endurance volume. Upper body pushing and pulling muscles will be thoroughly exhausted long before the run begins.
- Endurance (10/10): 40 rounds of bodyweight work followed by a 3-mile run creates an extremely long aerobic effort. The combined duration likely exceeds 60-90 minutes, placing massive cardiovascular demands on the athlete throughout.
- Speed (3/10): Pacing is critical but the priority is survival over speed. Efficient transitions and consistent rep cadence matter, but athletes must deliberately slow down to manage fatigue across such extreme volume.
- Flexibility (2/10): Standard range of motion required for pull-ups, push-ups, air squats, and running. No extreme mobility demands, though hip flexor and shoulder flexibility may become relevant late in the workout.
- Strength (1/10): All movements are bodyweight only with no external loading. Strength endurance is tested, but maximal force production is not a primary demand of this workout at any point.
- Power (1/10): The sheer volume and duration eliminate any explosive intent. Athletes will be grinding through reps conservatively to survive 40 rounds, making power output negligible as a primary training stimulus.
Movements
- Push-Up
- Air Squat
- Run
- Pull-Up
Scaling Options
Pull-Up Scaling: Substitute banded pull-ups, ring rows, or jumping pull-ups. Reduce to 3 pull-ups per round if volume is the issue. Push-Up Scaling: Elevate hands on a box or bench to reduce load; reduce to 7 reps per round. Air Squat Scaling: Squat to a box or target for depth assistance; reduce to 10 reps per round. Volume Scaling: Reduce to 20-30 rounds to keep total time under 60-75 minutes. Run Scaling: Substitute a 2-mile run, 3,000m row, or 6,000m bike erg if running is limited by injury. Full Beginner Scaling: 20 rounds of 3 ring rows, 7 knee push-ups, 10 air squats, then a 1.5-mile run or 2,000m row.
Scaling Explanation
Scale this workout if you cannot complete at least 5 unbroken pull-ups when fresh, or if your push-up mechanics break down significantly under fatigue. The goal is to keep moving — broken rest periods longer than 30 seconds per movement are a sign the volume or movement is too demanding. Prioritize technique over speed, especially on pull-ups and push-ups, as cumulative rep counts are extremely high and injury risk rises with fatigue. Target completion time is 60-90 minutes for intermediate athletes and under 60 minutes for advanced athletes. If you are consistently over 90 minutes on the calisthenics alone, reduce rounds. The run should feel hard but sustainable — if you cannot run at all, substitute rowing or biking to preserve the aerobic stimulus.
Intended Stimulus
This is the classic 'Cindy' format extended to a grueling long-duration test of muscular endurance, aerobic capacity, and mental fortitude. With 40 rounds plus a 3-mile run buy-out, expect a 60-120+ minute effort depending on fitness level. The energy demand is a long, steady engine — think diesel, not rocket fuel. The primary challenge is mental: managing fatigue, maintaining movement standards, and staying disciplined with pacing across hundreds of reps before you even hit the run. This workout builds aerobic base, bodyweight strength endurance, and the psychological grit to keep moving when everything in you wants to stop.
Coach Insight
Pace is everything here — go out too hot and you will crater by round 15. Target a consistent round time from the very first rep, ideally 45-60 seconds per round, which puts you around 30-40 minutes for the calisthenics before the run. Pull-ups are your limiting factor — break them early and often rather than going to failure. Consider 3-2 or even singles if needed in later rounds. Push-ups should stay crisp with a locked-out top position and chest-to-deck bottom — no snaking. Air squats need full depth and hip extension at the top; do not let these get sloppy as fatigue builds. Transition time is free time — minimize rest between movements within a round. For the 3-mile run, settle into a conversational pace; your legs will be cooked, so shorten your stride and focus on turnover. Common mistakes: going unbroken on pull-ups in early rounds and burning out, letting push-up standards slip, and treating the run as an afterthought rather than part of the workout.
Benchmark Notes
Forty rounds of Cindy (5 pull-ups, 10 push-ups, 15 air squats), then a 3-mile run. Elite athletes hold about 40 seconds a round (~27 min) and run the 3 miles in about 18, so nobody finishes much under 45 minutes. L5 (70-79 min) holds about 75 seconds a round and runs about 9:00 miles.
Modality Profile
4 movements total: Pull-Up (G), Push-Up (G), Air Squat (G) = 3 Gymnastics movements (75%), Run (M) = 1 Monostructural movement (25%). No Weightlifting movements present.
Similar Workouts to BL40
If you enjoy BL40, you might also like these similar CrossFit WODs:
- Jared (91% similar) - For time:
4 rounds of:
800 meter Run
40 Pull-Ups
70 Push-Ups...
- Murph (90% similar) - 1 mile Run
100 Pull-Ups
200 Push-Ups
300 Air Squats
1 mile Run...
- Maxton (90% similar) - 13 Rounds For Time (with Weight Vest 20/14 lb)
8 Strict Pull-ups
26 Box Step-ups (24/20 in)
21 Burpe...
- Painstorm XXIV (90% similar) - For time:
100 m Run
50 Burpees
200 m Run
100 Push-Ups
300 m Run
150 Lunges
400 m Run
200 Air Squats
...
- Highway to Hell (89% similar) - For Time
5 mile Assault Air Bike (in 2 minute max intervals)
After each 2-minute interval if the 5-m...
- FERN (89% similar) - With a 60-minute time cap:
For time:
2-mile run
Then 9 rounds of:
20-calorie row
20 burpees
Then 3 r...
- Killer Elite (89% similar) - For time:
7 rounds of:
400 meter Run
24 Pull-Ups
24 Dips
34 Crunches
9 Burpees...
- Small (89% similar) - 3 Rounds For Time
1,000 meter Row
50 Burpees
50 Box Jumps (24/20 in)
800 meter Run
...
These WODs similar to BL40 share comparable training demands, time domains, and movement patterns.