3 Rounds for Time
24 Pull-ups or Chest-to-bar
20m Barbell front rack walking lunges
24 Burpees to target
400 meter Run (approx. 437 yards)
50 Air Squats
350 meter Run (approx. 383 yards)
40 Sit-Ups
250 meter Run (approx. 273 yards)
30 Push-Ups
150 meter Run (approx. 164 yards)
20 Jumping Jacks
Wear a Weight Vest - 9/7 kg (20/15 lb)
The Brian Serdynski workout is a challenging test of endurance and functional strength, structured around a single round for time. This workout begins with a 400-meter run, followed by a series of bodyweight movements designed to elevate the heart rate and engage multiple muscle groups. The air squats set the tone for leg endurance, while the subsequent runs serve as active recovery segments that keep your heart rate high. Sit-ups engage the core, and push-ups contribute to upper body strength. The final run and jumping jacks finish off the workout, ensuring that cardiovascular fitness is a critical factor. Overall, this workout is excellent for athletes looking to enhance both strength and aerobic capacity.
To optimize your performance in the Brian Serdynski workout, begin with a moderate pace on the first 400-meter run to gauge your endurance. The key is to maintain a steady rhythm throughout the air squats and sit-ups, focusing on form to prevent fatigue. As you transition to push-ups, consider breaking them into smaller sets to avoid muscle failure, especially as the workout progresses. The shorter runs serve as an opportunity to recover while maintaining intensity, so aim to keep them consistent and efficient. Push through the final segments with urgency, particularly the last 150-meter run and jumping jacks, as they can significantly impact your overall time.
The workout named Brian Serdynski is a hero workout structured for time, emphasizing endurance and strength. Start with a 400 meter run, which is roughly 437 yards, to warm up and get your heart rate up.
Next, perform 50 air squats, focusing on proper form to maintain balance and stability.
Follow this with a 350 meter run (approx. 383 yards), then do 40 sit-ups to engage your core effectively.
Continue with a 250 meter run (approx. 273 yards), then tackle 30 push-ups, maintaining a straight body line throughout.
After that, run 150 meters (approx. 164 yards), and finish with 20 jumping jacks to raise your heart rate.
To add intensity, wear a weight vest throughout the workout for added resistance.


To scale the hero workout "Brian Serdynski," begin by reducing the 400-meter run to a manageable distance, such as 200 meters (approximately 219 yards) or even a brisk walk. Consider lowering the number of air squats to 30 or using a support like a wall or chair for assistance.
For the sit-ups, you might want to perform them on a softer surface or reduce reps to 20. Keep the push-ups at 20, but feel free to do them from your knees if necessary.
Cut the jumping jacks down to 15 or replace them with low-impact side steps to lessen impact on joints. Finally, if using a weight vest, opt for a lighter vest or skip it altogether to maintain form and safety.
Your score for the Hero Workout Brian Serdynski is calculated by the total time it takes to complete the entire round of exercises. The workout consists of running and bodyweight movements, which test both endurance and strength.
To score your attempt, you should time yourself from the beginning of the first 400-meter run until the end of the final 20 jumping jacks while wearing a weight vest. Keep track of any pauses or breaks you take, as these will affect your overall time.
Your final score reflects the total time in seconds to complete all components of the workout. A lower time indicates a better performance, showcasing greater efficiency and fitness level.


Focus on pacing during your runs; beginning too fast can lead to burnout. Maintain a steady rhythm throughout the workout, especially on the air squats and sit-ups, to avoid fatigue.
Incorporate a short rest between movements if needed, but keep it minimal to maintain momentum. Prioritize form over speed; ensure the air squats are deep and the push-ups are clean to maximize effectiveness and prevent injury.
During the jumping jacks, engage your core to enhance stability. If using a weight vest, adjust your technique slightly to accommodate the extra load, focusing on keeping your body aligned.
Lastly, hydrate adequately before and after the workout to support recovery and performance.
A good score for the workout completed by Brian Serdynski would generally be considered within the range of 9 to 12 minutes. This time reflects a high level of fitness, combining speed, endurance, and strength.
Intermediate athletes may aim for times closer to 12 minutes, while advanced athletes should target completion times around 10 minutes. Elite athletes, showcasing exceptional conditioning and efficiency, may finish this workout in under 9 minutes.
Achieving times in this range indicates not just physical capability, but also remarkable mental resilience and the ability to transition swiftly between high-intensity exercises.
Overall, a completion time of under 12 minutes is a solid benchmark for anyone looking to measure their performance on this challenging workout.


The Brian Serdynski workout is intended to build both aerobic endurance and muscular endurance through a series of running and bodyweight exercises. The combination of varying distances for the runs with the bodyweight movements creates a challenge that encourages athletes to push through fatigue while maintaining proper form.
This workout is structured to promote a continuous effort, emphasizing the importance of pacing and breath control. The inclusion of a weight vest adds an extra layer of intensity, enhancing strength across multiple muscle groups while increasing overall cardiovascular demand.
Ultimately, this workout aims to improve functional fitness and resilience, pushing participants to their limits and encouraging mental fortitude in the face of physical challenges.
The world record for the workout performed by Brian Serdynski, which is structured as a 'For Time' challenge, showcases incredible endurance and strength. Given the specifics of the workout, which includes various running segments along with bodyweight exercises, the top completion times are noted but can vary widely.
Unofficial reports suggest that elite athletes are completing this workout within a range of 9 to 12 minutes. Achieving such a time requires a combination of explosive speed during the runs and efficient transitions between exercises, all while wearing a weight vest.
This challenge emphasizes cardiovascular capacity, muscular endurance, and mental toughness, making it a significant benchmark in the CrossFit community.


The hero workout "Brian Serdynski" honors the memory of Brian Serdynski, a dedicated individual known for his commitment to fitness and community. He was a beloved friend and mentor to many, inspiring those around him to push their limits and achieve personal growth.
This workout serves as a tribute to his legacy, capturing the essence of his passion for health and well-being. Through challenging physical endurance, participants reflect on his impact while embracing the hard work and determination he embodied throughout his life.
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