Workout Description

Why This Workout Is Easy

This workout combines bodyweight-only movements (lunges) with running laps in a simple 5-round structure. The volume is low (100 total lunges across the workout), and running provides natural recovery between rounds. Lunges are fundamental, low-skill movements. The work-to-rest ratio is favorable—each round takes roughly 3-5 minutes, allowing adequate recovery. Most average CrossFitters complete this comfortably without scaling, making it accessible and manageable.

Benchmark Times for Lunge and the Pavement

• Elite: <4:30
• Advanced: 5:30-6:45
• Intermediate: 8:30-10:45
• Beginner: >27:00

Training Focus

This workout develops the following fitness attributes:

• Endurance (7/10): Five rounds of running laps creates sustained cardiovascular demand. The repeated running intervals challenge aerobic capacity and the ability to maintain steady-state effort across multiple rounds.
• Stamina (6/10): One hundred total lunges across five rounds demands significant lower body muscular endurance. The combination of lunges and running creates cumulative fatigue requiring sustained muscular output.
• Speed (6/10): The for-time format encourages quick transitions and steady pacing throughout five rounds. Minimizing rest between movements and maintaining consistent running speed are key to performance.
• Flexibility (4/10): Lunges require moderate hip and ankle mobility for proper range of motion. Running demands basic lower body flexibility, but the workout doesn't emphasize extreme ranges of motion.
• Power (3/10): Running laps involve some explosive leg drive, but the moderate pace and high volume emphasize endurance over power. Lunges are controlled movements without explosive intent.
• Strength (2/10): Lunges and running are bodyweight movements with minimal strength demands. No external load or maximal force production required; primarily tests muscular endurance over strength.

Movements

• Lunge
• Run

Scaling Options

Reduce lunge volume to 10-15 reps per round if 20 feels unmanageable. Sub reverse lunges or step-ups for athletes with knee pain or balance issues. Reduce run laps to 3 per round for newer athletes or those with limited aerobic base. Athletes with lower body injuries can substitute 20 calories on the bike or rower in place of running. If lunges are causing knee discomfort, air squats are an acceptable substitution to maintain the lower body stimulus.

Scaling Explanation

Scale if you cannot complete the first round of lunges with good knee tracking and upright posture, or if you find yourself walking the majority of the run laps by round 2. The goal is to keep moving with consistent effort across all 5 rounds — if you're stopping frequently or form is breaking down, reduce volume or substitute movements. Prioritize technique on lunges over speed. Target completion time is 20-35 minutes. Athletes finishing under 18 minutes can add a weighted vest or increase run distance to maintain the intended stimulus.

Intended Stimulus

This is a moderate time domain workout targeting aerobic conditioning and lower body muscular endurance. Expect a sustained effort lasting 20-35 minutes depending on fitness level. The combination of lunges and running creates a leg-heavy grind that challenges your ability to keep moving when your quads and glutes are burning. Primary challenge is conditioning with a mental component — staying consistent when the legs get heavy in rounds 3-5.

Coach Insight

Pace the runs conservatively in rounds 1-2 so you have something left for rounds 4-5. The lunges will accumulate fatigue fast, so resist the urge to sprint early. For lunges, keep your torso upright, front knee tracking over your toes, and drive through your heel to stand. Break the 20 lunges into two sets of 10 if needed — step, step, step rather than rushing and losing form. Common mistake: overstriding on lunges which stresses the knee, and going out too hot on the first run lap. Treat each round as its own mini-workout. Aim for consistent splits rather than a fast first round and a crawl to the finish.

Benchmark Notes

Primary limiters are aerobic capacity on the run laps and leg endurance through 100 total lunges under fatigue. L5 (~12 min) moves at a steady pace with minimal rest, breaking lunges into sets of 10 and running at a moderate aerobic pace.

Modality Profile

Lunge is a bodyweight gymnastics movement. Run is a cyclical monostructural cardio movement. Two movements split evenly between modalities.