Workout Description

21-15-9 Reps for Time Burpees Kettlebell Swings (24/16 kg) Box Jumps (24/20 in) Perform 6 Lunges after each exercise

Why This Workout Is Medium

A mostly bodyweight triplet with light kettlebell swings finishes in the 8–12 minute range for most. Density is moderate because 144 of 189 reps are bodyweight, while movement complexity averages out to moderate (burpee elevates it). The classic 21-15-9 structure slightly lowers difficulty (×0.95 modifier). Overall stress is high but not overwhelming, landing squarely in the Medium category.

Benchmark Times for Donkey Kong

  • Elite: <6:30
  • Advanced: 7:00-7:30
  • Intermediate: 8:30-9:30
  • Beginner: >15:00

Training Focus

This workout develops the following fitness attributes:

  • Stamina (8/10): High rep volume across four movements (189 total reps) challenges local muscular endurance in hips, posterior chain, and trunk. Most athletes succeed by managing short breaks and consistent cadence.
  • Speed (7/10): Fast cycle rates and tight transitions define success. The best times come from smooth, quick reps with minimal pauses between movements and stations.
  • Endurance (6/10): Sustained mixed-modal effort in the 8–12 minute range taxes the aerobic system without being a long grinder. Heart rate stays high with minimal rest and continuous movement across stations.
  • Power (6/10): Explosiveness matters in box jumps and aggressive hip extension on swings. Burpee pop-ups demand repeated power output, especially in the opening 21s.
  • Flexibility (3/10): Requires adequate hip, ankle, and shoulder range for safe swings, lunges, and box jumps. Mobility demands are present but not extreme for most athletes.
  • Strength (2/10): External loading is light (single kettlebell), and no maximal strength is tested. Emphasis is on cycling capacity and positions rather than heavy force production.

Movements

  • Burpee
  • Kettlebell Swing
  • Box Jump
  • Lunge

Scaling Options

Scale to: 21-15-9 with KB 20/12 kg, box 20/16 in, 6 lunges • 18-12-6, KB 16/12 kg, step-ups, 4 lunges • 12-9-6, KB 12/8 kg, low box or step-ups, 4 lunges

Scaling Explanation

These options reduce load, height, and reps to preserve a fast, continuous stimulus while keeping movement quality high and transitions quick.

Intended Stimulus

Fast and intense with controlled breathing. Aim for steady burpees, unbroken or two quick sets on swings, and rhythmic box jumps with safe step-downs. Lunges are a short buy-out after each movement—keep them crisp and immediate. You should feel breathy, legs and hips pumped, but never so gassed that you’re forced into long breaks.

Coach Insight

Pace the 21s to avoid redlining—use a smooth burpee cadence and plan one quick break on swings if needed. Keep transitions short. One tip: control your breathing leaving the burpees so you can grip-and-go on the swings. Avoid rebounding box jumps if you’re fatigued. Step down. Don’t over-extend the low back on swings—drive with hips and keep the bell high and close.

Benchmark Notes

WORKOUT STRUCTURE: 21-15-9 reps for time of Burpees, Kettlebell Swings (24/16 kg), Box Jumps (24/20 in), with 6 Lunges after each exercise. Total volume: 45 burpees, 45 KB swings, 45 box jumps, 54 lunges (6 after each of 9 sets). ANCHOR REFERENCE: This workout is most similar to Helen (3 rounds: 400m run, 21 KB swing 53/35, 12 pull-up) in structure - multiple movements with KB swings as a central element. Helen benchmarks: L10 450-510 sec (7:30-8:30) male, L5 630-690 sec (10:30-11:30) male, L1 900-1080 sec (15:00-18:00) male. However, this workout uses lighter KB (24 kg vs 53 lb ≈ 24 kg, so similar), replaces running with burpees/box jumps, and adds lunges, making it more gymnastics-dense and slightly shorter. MOVEMENT-BY-MOVEMENT BREAKDOWN: Round 1 (21 reps each + 18 lunges): - 21 Burpees: 3.5 sec/rep fresh = 73 sec - 6 Lunges: 1.5 sec/rep = 9 sec - 21 KB Swings (24 kg): 1.8 sec/rep = 38 sec - 6 Lunges: 1.5 sec/rep = 9 sec - 21 Box Jumps (24 in): 2 sec/rep = 42 sec - 6 Lunges: 1.5 sec/rep = 9 sec - Transitions (3 major): 12 sec - Round 1 Total: 192 sec (3:12) Round 2 (15 reps each + 18 lunges): - 15 Burpees: 4 sec/rep (fatigue 1.15x) = 60 sec - 6 Lunges: 1.8 sec/rep = 11 sec - 15 KB Swings: 2 sec/rep (grip fatigue) = 30 sec - 6 Lunges: 1.8 sec/rep = 11 sec - 15 Box Jumps: 2.3 sec/rep (leg fatigue) = 35 sec - 6 Lunges: 1.8 sec/rep = 11 sec - Transitions: 10 sec - Round 2 Total: 168 sec (2:48) Round 3 (9 reps each + 18 lunges): - 9 Burpees: 4.5 sec/rep (fatigue 1.3x) = 41 sec - 6 Lunges: 2 sec/rep = 12 sec - 9 KB Swings: 2.2 sec/rep = 20 sec - 6 Lunges: 2 sec/rep = 12 sec - 9 Box Jumps: 2.5 sec/rep (heavy fatigue) = 23 sec - 6 Lunges: 2 sec/rep = 12 sec - Transitions: 8 sec - Round 3 Total: 128 sec (2:08) ELITE (L10) PROJECTION: 192 + 168 + 128 = 488 sec ≈ 8:08. Elite athletes will move faster with minimal breaks. Target: 390-420 sec (6:30-7:00). INTERMEDIATE (L5) PROJECTION: Add 20% for set breaks and slower pace = 488 × 1.2 = 586 sec ≈ 9:46. With additional rest between movements: 570-630 sec (9:30-10:30). NOVICE (L1) PROJECTION: Add 80-90% for frequent breaks, step-downs on box, slower burpees = 488 × 1.85 = 903 sec ≈ 15:00. Target: 900-960 sec (15:00-16:00). COACHING REALITY CHECK: The combination of burpees (full-body fatigue), KB swings (posterior chain + grip), box jumps (leg power + CNS demand), and constant lunges creates cumulative fatigue that will force set breaks. Most athletes will break burpees into 10-7-4 or 15-6 sets in round 1, then smaller sets. Box jumps may become step-ups for safety in later rounds for intermediate athletes. The lunges, while only 6 reps, add up to 54 total and will tax the legs significantly between movements. This workout is slightly faster than Helen due to no running but similar overall demand. The lighter KB (24 kg vs 53 lb) makes swings more sustainable but burpees are harder than running for most. COMPARISON TO ANCHOR: Helen L10 is 450-510 sec; this workout should be slightly faster (10-15%) due to lighter KB and no running transitions, placing L10 at 390-450 sec. Helen L5 is 630-690 sec; this workout L5 should be 570-630 sec. Helen L1 is 900-1080 sec; this workout L1 should be 900-960 sec (similar due to burpee difficulty offsetting easier swings). FINAL TARGETS: - L10 (Elite Male): 390-420 sec (6:30-7:00) - L5 (Intermediate Male): 570-630 sec (9:30-10:30) - L1 (Novice Male): 900-960 sec (15:00-16:00) Interpolating between these anchors for smooth progression: L9: 420 sec, L8: 450 sec, L7: 510 sec, L6: 570 sec, L5: 630 sec, L4: 690 sec, L3: 780 sec, L2: 900 sec, L1: 960 sec (but capping at reasonable max).

Modality Profile

The workout is predominantly gymnastics: burpees, box jumps, and lunges total 144 reps (~76%). Kettlebell swings contribute 45 reps (~24%) to the weightlifting component. There is no monostructural element. Expect bodyweight conditioning to dominate, with a secondary posterior-chain demand from the kettlebell.

Similar Workouts to Donkey Kong

If you enjoy Donkey Kong, you might also like these similar CrossFit WODs:

  • Open 13.2 (90% similar) - AMRAP in 10 minutes: 5 Shoulder-to-Overheads (115/75 lb) 10 Deadlifts (115/75 lb) 15 Box Jumps (24/2...
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  • Artie (87% similar) - AMRAP in 20 minutes 5 Pull-Ups 10 Push-Ups 15 Squats 5 Pull-Ups 10 Thrusters (95/65 lb)...
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These WODs similar to Donkey Kong share comparable training demands, time domains, and movement patterns.

Training Profile

AttributeScoreExplanation
Endurance6/10Sustained mixed-modal effort in the 8–12 minute range taxes the aerobic system without being a long grinder. Heart rate stays high with minimal rest and continuous movement across stations.
Stamina8/10High rep volume across four movements (189 total reps) challenges local muscular endurance in hips, posterior chain, and trunk. Most athletes succeed by managing short breaks and consistent cadence.
Strength2/10External loading is light (single kettlebell), and no maximal strength is tested. Emphasis is on cycling capacity and positions rather than heavy force production.
Flexibility3/10Requires adequate hip, ankle, and shoulder range for safe swings, lunges, and box jumps. Mobility demands are present but not extreme for most athletes.
Power6/10Explosiveness matters in box jumps and aggressive hip extension on swings. Burpee pop-ups demand repeated power output, especially in the opening 21s.
Speed7/10Fast cycle rates and tight transitions define success. The best times come from smooth, quick reps with minimal pauses between movements and stations.

21-15-9 Reps for Time (24/16 kg) (24/20 in) Perform 6 after each exercise

Difficulty:
Medium
Modality:
G
W
Stimulus:

Fast and intense with controlled breathing. Aim for steady burpees, unbroken or two quick sets on swings, and rhythmic box jumps with safe step-downs. Lunges are a short buy-out after each movement—keep them crisp and immediate. You should feel breathy, legs and hips pumped, but never so gassed that you’re forced into long breaks.

Insight:

Pace the 21s to avoid redlining—use a smooth burpee cadence and plan one quick break on swings if needed. Keep transitions short. One tip: control your breathing leaving the burpees so you can grip-and-go on the swings. Avoid rebounding box jumps if you’re fatigued. Step down. Don’t over-extend the low back on swings—drive with hips and keep the bell high and close.

Scaling:

Scale to: 21-15-9 with KB 20/12 kg, box 20/16 in, 6 lunges • 18-12-6, KB 16/12 kg, step-ups, 4 lunges • 12-9-6, KB 12/8 kg, low box or step-ups, 4 lunges

Time Distribution:
7:15Elite
10:00Target
15:00Time Cap
Your Scores:

Training Profile

Performance Levels
L1
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L4
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