What is ‘Murph’ and why do we do it?

dev • August 29, 2025

What is ‘Murph’ and why do we do it?

The ‘Murph’ workout is a famous CrossFit Hero WOD (Workout of the Day) named after Lt. Michael P. Murphy, a U.S. Navy SEAL who was killed in action in Afghanistan in 2005. CrossFit athletes and fitness communities complete the ‘Murph’ workout on Memorial Day Weekend as a way to honor fallen military service members, particularly Lt. Murphy, who performed this workout often while stationed in Afghanistan. Appropriately, he called the workout “Body Armor”.

The workout is grueling, meant to symbolize the sacrifice and endurance of those who serve. It’s a way for athletes to push themselves mentally and physically while remembering the courage and dedication of the military heroes that paid the ultimate price for our country’s freedom. Many CrossFit gyms host ‘Murph’ Challenges as annual events, often fundraising for military charities or veteran support organizations.

Can anybody complete ‘Mur ph’?

Below is a picture of Mike Murphy taken around 2004, as well as a brief summary of the WOD.

Just nine short weeks from now, Mad Mare CrossFit will complete the ‘Murph’ WOD on Saturday, May 24th to honor our fallen heroes. That same weekend, CrossFit boxes all over the world will be taking on the Hero WOD ‘Murph’, a 1-mile run followed by 100 pull-ups, 200 push-ups, 300 air squats and a second 1-mile run. Just like any other CrossFit WOD, ‘Murph’ can be scaled to suit the ability of any athlete.

We have plenty of time to prepare ourselves for this WOD. Below are a few of the scaling options we will be using at Mad Mare CrossFit. When choosing an option, select one that will challenge you, but also allow you to finish this WOD is less than 1-hour.

What’s the true ‘OG RX’ version of ‘Murph’ that he called Body Armor?

The true OG RX version of ‘Murph’ would be completing all this work in order and in a weighted vest (20 pounds for guys and 16 pounds for ladies) without partitioning the reps. In essence, you would be completing the run, then all the pull-ups before moving onto the push-ups (and so on). 

Run 1 Mile


100 Pull-ups


200 Push-ups


300 Air Squats


Run 1 Mile

I’m sure you can imagine, this gets spicy quickly! As with any famous benchmark, we typically tend to come out hot when we hear, “3-2-1 Go!”, and this is definitely not a WOD to do that. Keep that opening mile pace at 8 to 10 minutes, and take quick breaks between sets of reps. Time your breaks and keep moving! Performing ‘Murph’ RX is no easy task and should likely be reserved for the seasoned CrossFitters amongst us.

RX Partitioned:

A slightly easier version of ‘Murph’ (but not that much easier) is what we would refer to as Partitioned ‘Murph’. For a partitioned ‘Murph’, complete the same distance runs and the same number of total reps as RX ‘Murph’ but partition the pull ups, push up and squats into “rounds”. One example of this would be as follows:

Run 1 Mile


Then, 20 rounds of:


5 Pull-ups


10 Push-ups


15 Air Squats


Then, Run 1 Mile

For those that have difficulty with push-ups, try something like the following:

Run 1 Mile


Then, 20 rounds of:


5 Push-ups


5 Pull-ups


5 Push-ups


15 Air Squats


Then, Run 1 Mile

This version of ‘Murph’ is a lot more forgiving, slightly less daunting and will allow you to get through the workout slightly faster (there’s no ‘staring at the ground’ while you’re waiting for your push-up muscles to recover. Even with a partitioned ‘Murph’, don’t underestimate it – it’s still a tough WOD! The push-ups are always a killer.

Scaled ‘Murph’:

Besides simply partitioning the WOD, as with everything we do we can also scale the WOD in several different ways. We can scale loads, we can scale range of motion, and we can even scale the amount of reps.

Example of Scaling Load: First and foremost, the easiest way to scale ‘Murph’ is to lose the vest. Wearing an extra 16-20 pounds throughout the course of this WOD is grueling! Lose the vest and perform one of the versions above. If you complete it in under 45 minutes without the vest this year, try wearing a vest next year!

Another Example of Scaling Load: We can also do things to make the pull-ups and push-ups a bit easier. Replacing the pull-ups with ring-rows is a good first step, and performing the push-ups to a box (or any other elevated position) or performing the push-ups on your knees will help as well. No matter how you scale load, we would still like to see a full range of motion on the push-ups and pull-ups no matter how you scale! Example: all the way down on push-ups and all the way up! Example: straight arms at the bottom of the pull-up or ring row, and chin over the bar on any kind of pull-up!

Example of Scaling Range of Motion (ROM): We very rarely like to scale ROM in CrossFit. Part of the magic of CrossFit is in the movements. The movements are designed to exemplify functional movements, so doing things like only going half-way down on a push-up diminishes the usefulness and practicality of that particular exercise. If you fall down, do you ever really just fall halfway down? Not really – no. When you have to get up off the floor from your stomach, your chest is touching the ground, so it requires that you perform a full-range push-up. 

So, when do we want to scale ROM? When we have an injury or a limitation. An example of scaling ROM due to a limitation might be something like squatting to a box or using dumbbell rows for pull-ups due to a shoulder limitation. If you ever have a question about scaling ROM, just ask your coach.

Example of Scaling Repetitions: If you can perform most of the movements for ‘Murph’, but you’re having trouble with the sheer volume, scaling the reps might be a good option for you. Scaling the rep scheme is also simple. A scaled version might look like:

Run ½-Mile
50 Pull-ups
100 Push-ups
150 Air Squats
Run ½-Mile

Remember the stimulus and remember the reason.

Whichever variation of ‘Murph’ you opt for make sure you consider how the workout is supposed to be completed. ‘Murph’ should not take you over an hour, but you shouldn’t finish it in 20 (or even 30) minutes either. A fast time for ‘Murph’ is around 35-40 minutes. The World Record time for ‘Murph’ RX Unpartitioned (OG RX) was set by Hunter McIntyre in May 2020 (34:13 rx). Just one year later in June 2021, that record was broken by Alec Blenis (32:41 rx). Bottom line? You shouldn’t be standing around looking at the bar or resting on your knees for minutes at a time, but you also shouldn’t be able to hit the whole thing unbroken. So, make sure you pick a scaling option that suits your ability but one that maintains the pure suck that ‘Murph’ should bring – and as always, if in doubt ask your coach.

Remember to hit it hard, no matter what, because this is a hero WOD, and it is not meant to only honor the memory of Lt. Mike Murphy, but to honor all of our fallen heroes worldwide.

“Greater love hath no man than this, that a man lay down his life for his friends.” 

John 15:13 KJV

By dev August 29, 2025
Are you ready to walk into a CrossFit box? Walking into any new place can be scary.  Whether it’s a classroom, a doctor’s office, or even a new church, new places can be intimidating to even the most ‘brave’ individuals.  Are you nervous about walking into a CrossFit box?  Don’t be!  Come on in, the […]
By dev August 29, 2025
What do you look for in a personal trainer?  You want to lose weight?  You want to gain muscle?  The personal trainer needs to care about YOUR goals, and not just making a fast buck.  Find a trainer that cares, cares, cares!
By dev August 29, 2025
Why You Might Want to Add 1:1 Personal Training to Your Group CrossFit Experience At Mad Mare CrossFit, our group classes are the heartbeat of our community—there’s nothing like the energy of pushing through a tough workou t surrounded by like-minded athletes, coached by our expert trainers. But if you’re serious about achieving your goals, there’s […]
By dev August 29, 2025
So you’re thinking about trying CrossFit—but you’re not sure where to start? You’ve seen the videos. People lifting heavy weights, climbing ropes, flipping tires, and moving fast. Maybe it looks exciting… but also a little intimidating. You might be thinking: “Do I need to be in shape before I start?” “Will I get hurt?” “Can […]
By dev August 29, 2025
Why Consistency Beats Intensity: The Real Secret to Long-Term Fitness Ever feel like if you’re not leaving the gym in a puddle of sweat or breaking a personal record, the workout didn’t really count? We’ve all seen the highlight reels on social media—athletes crushing PRs, drenched in sweat, moving with max effort like their life depends on […]
By dev August 29, 2025
Root Cause Analysis vs. Empathy: Knowing When to Solve and When to Support As a mechanical engineer by trade and a CrossFit owner and coach later in life, I’ve spent a lot of time looking for and solving problems. In the world of engineering, we rely heavily on something called Root Cause Analysis (RCA) to […]
By dev August 29, 2025
Why You Should Join Us for Murph on May 24 If you’ve been on the fence, or you’re thinking, ‘That workout looks intense — maybe it’s not for me,’ I get it. Murph is tough. But I want you to know something: This is not about your score. This is about showing up. It’s about […]
By dev August 29, 2025
Understanding Zone Training: Myths, Realities, and How to Use It Wisely When it comes to optimizing your workouts and reaching your fitness goals, understanding how hard your body is working can be just as important as knowing what movements you’re doing. This is where zone training comes into play.  Originally developed for endurance athletes, zone training uses your heart rate to […]
By dev August 29, 2025
Coaching Aging Athletes: How Mad Mare CrossFit Models Aimee Lyons’s Approach I recently read an article by CrossFit’s Eric O’Connor (CF-L4) “How to Effectively Coach Aging CrossFit Athletes: A Full Class and Q&A with Aimee Lyons”. That article really connected with me, as I believe we are taking a very similar approach at Mad Mare […]