Workout Description
Starting 7 minutes after IE6:
35-calorie C2 bike
28 bar muscle-ups
24 burpee box jump-overs
Women: 20-inch box
Men: 24-inch box
Why This Workout Is Very Hard
For the average CrossFit athlete, Hammer Down is Very Hard because Bar Muscle-Up and Burpee Box Jump-Over meet a roughly 6:36 work domain. The movements interfere through repeated grip, trunk, leg, or overhead fatigue, and there is little built-in recovery, so local fatigue compounds across movements. Only experienced athletes are likely to preserve every Rx standard.
Benchmark Times for Hammer Down
- Elite: <4:07
- Advanced: 4:51-5:36
- Intermediate: 6:24-7:08
- Beginner: >11:36
Training Focus
This workout develops the following fitness attributes:
- Speed (8/10): The 6:36 scoring window and 3 movements score 0.8 for speed; success rewards high-skill or heavily loaded cycling, decisive transitions, and appropriately aggressive pacing.
- Stamina (4/10): The repeated work around Bar Muscle-Up and Burpee Box Jump-Over scores 0.4 for stamina; athletes must preserve local muscular output as sets, rounds, and transitions accumulate fatigue.
- Endurance (3/10): Hammer Down scores 0.3 for endurance because its 6:36 domain creates cardiovascular demand through sustained output. Breathing supports repeatable work, but pure aerobic capacity is not the only limiter.
- Power (2/10): Burpee Box Jump-Over drive a 0.2 power score through repeated explosive extension and fast force production. Explosive intent must remain repeatable rather than deteriorating into slow, inefficient repetitions.
- Strength (1/10): Force and control demands score 0.1 for strength. Strength supports posture and movement quality, while absolute load is either unreported or not the workout's primary scoring challenge.
- Flexibility (1/10): The prescribed positions create a 0.1 flexibility demand: efficient range of motion matters, but mobility is supportive rather than the sole test.
Movements
- Air Bike
- Bar Muscle-Up
- Burpee Box Jump-Over
Scaling Options
Replace Bar Muscle-Up with chest-to-bar pull-ups. Reduce monostructural distance or calories to roughly 70-80%.
Scaling Explanation
Choose options that keep the athlete working in the short, high-output domain without prolonged failure. Preserve the primary challenge of Bar Muscle-Up and Burpee Box Jump-Over, not the exact Rx load or skill at the expense of intensity.
Intended Stimulus
Hammer Down is intended as a short, high-output test centered on Bar Muscle-Up and Burpee Box Jump-Over. Athletes should sustain the fastest repeatable output that preserves the prescribed standards, letting breathing and local fatigue build without turning early aggression into failed reps or long stops.
Coach Insight
Start at a pace you can repeat through the middle of the workout, and break Bar Muscle-Up and Burpee Box Jump-Over before technique or cadence collapses. Keep transitions deliberate and short; save the final acceleration for the last round or station.
Benchmark Notes
L5 is anchored near 7:08 for an average Rx athlete, allowing realistic set breaks and transitions around Bar Muscle-Up and Burpee Box Jump-Over. L10 targets 3:43 with deliberate pacing, near-unbroken skill work, and minimal transition loss.
Modality Profile
Counting each unique movement once, G includes Bar Muscle-Up and Burpee Box Jump-Over; M includes Air Bike. That produces G 70%, M 30%, and W 0%.
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