Accumulate the following in unbroken sets:
300 Double Unders
75 Toes to Bar
60 DB Snatches
One set = one side. Switch exercises when no longer unbroken.
Round 1: 1,000m Row, 1 mile Assault Air Bike, 200 Single-Unders
Round 2: 750m Row, 0.8 mile Assault Air Bike, 150 Single-Unders
Round 3: 500m Row, 0.6 mile Assault Air Bike, 100 Single-Unders
Round 4: 250m Row, 0.4 mile Assault Air Bike, 50 Single-Unders
The Cardio Complex is a high-intensity benchmark workout designed to push your cardiovascular endurance and stamina. Comprising four rounds of varying distances and repetitions, it begins with a 1,000m row, followed by a 1-mile Assault Air Bike and concludes with 200 single-unders in the first round. Each subsequent round decreases the row distance, bike distance, and single-unders, making the workout progressively challenging. This structure tests your ability to maintain a consistent output under fatigue while developing skills in rowing, cycling, and jumping rope. It caters to various fitness levels, promoting improvement in both speed and efficiency.
To excel in the Cardio Complex benchmark workout, begin at a sustainable pace for the first round, focusing on technique and form. Each round should ideally take between 2 to 4 minutes, depending on your fitness level. Transition quickly between exercises to keep your heart rate elevated, and consider breaking up the single-unders if fatigue sets in. Stay mindful of your rowing technique to maximize effectiveness and minimize energy expenditure. When approaching the final round, give it all you have left—those last few rounds are crucial for achieving your best time and improving your score on the leaderboard.
To perform the benchmark workout titled "For Time - 4 Rounds," follow the structured rounds as outlined. Begin with Round 1 by rowing 1,000 meters, followed by a 1-mile ride on the Assault Air Bike, and complete 200 single-unders with a jump rope.
Transition to Round 2, where you'll row 750 meters, cycle 0.8 miles, and perform 150 single-unders. For Round 3, decrease the rowing distance to 500 meters, ride 0.6 miles, and complete 100 single-unders.
Finally, in Round 4, row 250 meters, bike 0.4 miles, and finish with 50 single-unders. Ensure proper form, maintain a steady pace, and stay focused throughout the workout to maximize your performance.


To scale the benchmark workout for Cardio Complex, adjust the rowing distances to match your fitness level. For beginners, consider starting with 500m Row for Round 1 and gradually decreasing to 200m in Round 4.
For the Assault Air Bike, start with 0.5 mile for Round 1 and decrease to 0.3 mile for Round 4. This ensures you can maintain a steady pace throughout the workout.
When it comes to single-unders, reduce the reps starting from 100 in Round 1 down to 30 in Round 4 for a manageable challenge.
Focus on maintaining form and pacing rather than speed, ensuring a successful and enjoyable workout experience.
Your score for the Cardio Complex workout is calculated by summing the total number of rounds completed along with any additional repetitions from the last round.
For this benchmark workout, each round progressively decreases in distance and repetitions. Ensure to complete each component within the designated rounds. If you finish partial rounds, count the total distance covered and the repetitions performed in the final round.
For example, if you completed 3 full rounds and 250 meters on the rower in Round 4, your score would be 3 rounds plus 250 meters, translating into a total score of 3 + 250 = 300.
Remember to record your results accurately for future reference and comparisons to track your progress over time.


Establish a steady pace from the start; avoid going all out in the initial rounds. Focus on efficient transitions to save valuable time and energy between exercises. If your grip or shoulders start to fatigue, consider breaking down the rowing intervals into manageable sections, allowing for brief recovery moments.
Maintain a consistent rhythm during the Assault Air Bike segments, emphasizing controlled breathing to enhance endurance. For the single-unders, concentrate on keeping your jumps low and steady to minimize fatigue. Staying aware of your form throughout each round will help prevent injury and keep you moving efficiently.
Finally, hydrate and fuel appropriately before tackling the workout to optimize your performance. Regular practice of this benchmark will lead to steady improvement over time.
The Cardio Complex workout is primarily a test of endurance, pacing, and coordination. For this particular workout, a good score can be influenced by individual fitness levels.
Intermediate athletes may complete it in the range of 18 to 22 minutes, while advanced individuals might aim for a time of around 15 to 18 minutes. Elite athletes are expected to finish in under 15 minutes, showcasing exceptional cardiovascular fitness and muscular endurance.
Moreover, a score under 12 minutes is an impressive benchmark, indicating an outstanding performance in both power and stamina across all rounds.


The benchmark workout "Cardio Complex" is intended to enhance cardiovascular endurance, muscular stamina, and coordination across multiple modalities. Athletes will engage in progressively challenging rounds that require sustained effort while managing varying distances on the rower and Assault Air Bike, combined with single-unders.
This workout serves as a test of both aerobic capacity and mental toughness, as participants are pushed to maintain intensity while dealing with cumulative fatigue. The design promotes efficient transitions and recovery strategies, helping athletes improve their work capacity over time.
Ultimately, "Cardio Complex" is a comprehensive test that aims to refine overall athletic performance, ensuring that participants can execute functional movements under pressure while sustaining high levels of endurance throughout the workout.
The world record for the Cardio Complex workout, structured as "For Time," has seen impressive performances in the fitness community. For elite athletes, times can range significantly, with the best scores reportedly being around 12 to 15 minutes.
These top-tier times require exceptional endurance and speed, given the combination of rowing, cycling, and jump rope involved. Athletes must maintain high-intensity effort throughout each of the four rounds to achieve these extraordinary times.
As with many competitive workouts, preparation and training specifically for the Cardio Complex can greatly impact an athlete's performance, allowing them to push the boundaries of their capabilities.

double under workout, dumbbell snatch workout, toes to bar workout
300 Double Unders
75 Toes to Bar
60 DB Snatches
One set = one side. Switch exercises when no longer unbroken.
Deadlift workout, for time workout, hang clean workout, push jerk workout
12 Push Jerks
9 Hang Power Cleans
6 Deadlifts
Burpee workout, for time workout, thruster workout
21-18-15-12-9-6-3 reps for time of:
Thrusters RX: 30/43
Burpees
bike erg workout, dumbbell snatch workout, handstand push-up workout, standing bike workout
500/600 meter bike erg
21 Alt. DB Snatch
11 HSPU
350/400 meter standing bike erg
Rest 1 min
assault bike workout, dumbbell front rack reverse lunges workout, dumbbell snatch workout, for time workout
12/18 cal assault bike
12 Double DB hang snatch -
12 Double DB front rack reverse lunges
90 sec rest between rounds
TC: 23
