Helix

Murph prep

One mile, 100 pull-ups, 200 push-ups, 300 squats, one mile, in a 20 lb vest. This is week five of an eight-week build: partitioned practice, mile repeats, strength support and one half-Murph benchmark, run through a per-muscle recovery model.

Advanced4 days/week8 weeksNeeds: Pull-up Bar, Dip Bars / Station, DumbbellsUpdated Jul 2026

Lieutenant Michael P. Murphy was a US Navy SEAL from Patchogue, New York. On 28 June 2005, during Operation Red Wings in the mountains of Kunar Province, Afghanistan, his four-man reconnaissance team was surrounded by a much larger enemy force. With his team wounded and their communications blocked by the terrain, Murphy moved out of cover into open ground, fully exposed to enemy fire, to get a clear signal and call for help. He made the call, was hit, and finished it. He was 29. In October 2007 he was posthumously awarded the Medal of Honor, the first awarded for the war in Afghanistan and the first to a Navy SEAL since Vietnam.

The workout below carries his name because he trained it. It was one of his favourites and he called it “Body Armor”: a one-mile run, 100 pull-ups, 200 push-ups, 300 air squats, another one-mile run, wearing body armour. CrossFit published it as a hero workout on 18 August 2005, six weeks after his death, and every Memorial Day thousands of gyms and far more people at home run it together. The official version, The Murph Challenge, is the annual fundraiser for the LT. Michael P. Murphy Memorial Scholarship Foundation, which his parents and brother founded in 2007 and which now sends dozens of students to school each year. As prescribed, the vest is 20 lb for men and 14 lb for women.

Murph is a memorial before it is a benchmark, and the way to treat it as one is to arrive prepared rather than to arrive broken. The week below is week five of an eight-week build: one partitioned practice day, one run day, one strength day and one half-distance benchmark. Nothing about it is clever. It is simply the amount of specific work that lets you finish the real thing standing up.

The program

Monday — Partitioned practice

Ten rounds of 5 / 10 / 15, the workout in miniature
  • 10 × 5 · 30 to 60 s

    One round is 5 pull-ups, 10 push-ups, 15 squats, with no rest inside a round and 30 to 60 s between them. Twenty of those rounds is Murph exactly; ten is half of it, and the best predictor of your finish time there is.

  • 10 × 10

    Chest to the deck, full lockout, no worming. Round eight is where the standard quietly slips, and slipped push-ups are what cost you the last two rounds.

  • Hip crease below the knee. Squats feel free for the first 100 and expensive for the last 200, so keep the pace boring on purpose.

Tuesday

Rest

Rest. This is where the adaptation actually happens.

Wednesday — Run day

Mile repeats at goal pace
  • 10 min easy, 2 × 1 mile at goal Murph pace, 3 min walk between, 10 min easy

    Both Murph miles matter, but only the second one is hard. Every third week, run the second repeat straight off 100 squats so you know what that feels like before the day.

Thursday — Strength support

Heavy pull, heavy push, single leg
  • 5 × 3 to 5 · 3 min

    Weighted: vest, dip belt or a dumbbell between the feet, heavy enough that the fifth rep is a genuine fight. This is the block that turns 100 pull-ups from an event into a chore.

  • 4 × 6 to 10 · 2 min

    The one piece of pressing assistance still paying you at rep 150. Add load once you clear 10 clean.

  • 3 × 20 steps · 2 min

    So that 300 air squats is not the only thing your quads have ever been asked to do.

Friday

Rest

Rest. This is where the adaptation actually happens.

Saturday — Half Murph

Benchmark, every second week
  • Everything today is Murph at 50 percent. Run this at the pace you intend to run the real mile, not faster.

  • 10 × 5

    Fifty pull-ups, partitioned into rounds of 5 / 10 / 15. Vest optional, and only from week five.

  • 10 × 10
  • Double this time, add a minute or two for fatigue, and you have a realistic Murph estimate.

Sunday

Rest

Rest. This is where the adaptation actually happens.

What it actually trains

Computed from the program above with the app’s involvement math, not asserted: brighter muscle, more weekly volume.

Hover a highlighted muscle
Most volumeModerateLight
Quads
27 · beyond the band
Upper Back
25 · beyond the band
Chest
24 · beyond the band
Glutes
15 · in the growth band
Biceps
13 · in the growth band
Triceps
12 · in the growth band
Shoulders
9 · maintenance
Forearms
8 · maintenance
Hamstrings
5 · maintenance
Abs
4 · maintenance
Calves
4 · token

Involvement-weighted sets per week, the same accounting the Helix app uses. The pale band marks 10–20 weighted sets, the range where extra volume reliably keeps paying back. Timed work (runs, holds) is counted as a few set-equivalents, an approximation.

Untrained by this program
ObliquesTrapsLower BackAdductorsTibialis

14 recovery-window violations per week

  • Chesthit again after 48 h (Thursday — Strength support Saturday — Half Murph); needs ~72 h
  • Chesthit again after 48 h (Saturday — Half Murph Monday — Partitioned practice); needs ~72 h
  • Upper Backhit again after 48 h (Thursday — Strength support Saturday — Half Murph); needs ~72 h
  • Upper Backhit again after 48 h (Saturday — Half Murph Monday — Partitioned practice); needs ~72 h
  • Quadshit again after 48 h (Thursday — Strength support Saturday — Half Murph); needs ~72 h
  • Quadshit again after 48 h (Saturday — Half Murph Monday — Partitioned practice); needs ~72 h

…and 8 more of the same shape.

The reality check

Fourteen flags, and every one of them touches Saturday. The audit above returns 14 recovery violations, and if you read the day pairs they are all either Thursday into Saturday or Saturday into Monday: chest, upper back, quads, glutes, biceps, triceps, delts and abs, all at 48 hours against windows of 54 or 72. Monday into Thursday is exactly 72 hours and clears every single window on the chart. Take the benchmark out, which is what happens on the off weeks, and the audit returns zero flags. Test days borrow, and this one borrows from precisely two places, on purpose, once a fortnight.

The volume is peak-block volume, not a way to live. Twenty-seven weighted sets a week on the quads, 25 on the upper back and 24 on the chest are the top three bars above, and all three are past the point where more volume keeps paying back. That is the deal with a rep-count event: for eight weeks you overfeed the exact tissues the test will interrogate, and then you stop. Run this shape all year and the flags stop being a borrowing arrangement and start being an elbow problem.

Wednesday is not as free as the chart implies. The mile repeats come out at 1.8 weighted sets on the quads, just under the 2.0 the audit counts as a hit, so the run day contributes no flags at all. Treat that as the model rounding rather than a promise. Two hard miles on legs that squatted 150 reps on Monday are real work, and if Thursday’s lunges feel heavier than they should, Wednesday is why.

Straight through versus Cindy rounds is the whole race. Done straight through, Murph asks for 100 unbroken-ish pull-ups before you have touched a push-up, and for almost everyone that turns the workout into a grip and elbow event that ends somewhere around rep 60. Twenty rounds of 5 pull-ups, 10 push-ups and 15 squats is the same 300-rep total rearranged so no single tissue ever accumulates more than five reps at a time, and it is faster for the overwhelming majority of people. Ten rounds of 10 / 20 / 30 sits in between and suits strong pullers with a good engine. Pick your partition in week three and rehearse it, because the day itself is a bad time to discover that sets of ten pull-ups were optimistic.

The vest is the last thing you earn, not the first. Twenty pounds is roughly a 10 to 12 percent bodyweight increase across 300 squats and 200 push-ups, and it lands on the part of the push-up least able to hold a position: the lumbar spine, which is why vested push-ups sag first. The honest rule is that if you cannot finish unweighted in something like an hour with your form intact, the vest subtracts from the tribute rather than adding to it.

Pull-ups are the limiter, and it is not close. One hundred pull-ups is more than most trained lifters do in a month, let alone a session, and it is the reason a scaled Murph is the correct Murph for most people. If you cannot yet do one strict rep, start with Road to First Pull-up and come back next Memorial Day. If push-ups are your ceiling instead, Road to 100 Push-ups builds the exact capacity the middle 200 reps demand.

How to run it

The eight-week ladder: weeks 1 and 2 run a quarter Murph on the benchmark day (400 m, 25 pull-ups, 50 push-ups, 75 squats, 400 m) with no vest. Weeks 3 and 4 move to half, which is what the Saturday above shows. Weeks 5 and 6 go to three quarters, and week 5 is the first week the vest appears at all, worn only for the runs and the squats. Week 7 is a full unweighted Murph or a vested half, your pick, whichever leaves you able to walk on Tuesday. Week 8 is a taper: keep Monday and Wednesday, delete Thursday, and run the real thing on the day. Every ladder step raises the reps and nothing else. The practice, run and strength days do not change all cycle.

Hands are the most common DNF. Rips end more Murph attempts than fitness does. File your calluses flat once a week so there is nothing raised for the bar to catch, keep chalk light because a caked grip tears more than a dry one, and use grips or tape from week three so the day itself is not the first time you wear them. Break the pull-up sets before your grip breaks them: five at a time with a shake-out is faster over 100 reps than three sets of failure and a ripped palm. If a hand tears mid-workout, tape it and drop to ring rows rather than bleeding onto a bar someone else has to use.

Memorial Day is usually the first hot day of the year. That is the real hazard, not the reps. Start hydrated rather than drinking your way through it, take electrolytes if you are out there past 45 minutes, run the first mile 30 to 45 seconds slower than you think you should, and get in the shade between rounds. Murph is also one of the workouts most associated with exertional rhabdomyolysis, because it is a very large volume of eccentric work done once a year by people who did not build up to it. Dark, cola-coloured urine, swelling far out of proportion to the soreness, or arms you cannot straighten two days later are an emergency room conversation, not a soreness one. The eight-week build exists precisely so your body has seen the volume before.

Skip the vest if any of these are true: this is your first Murph, your unweighted time is over an hour, you are coming back from a shoulder or elbow issue, your push-ups already sag by rep 100, or the forecast is over 27 degrees Celsius. Scaling is not a failure state here. A partitioned, unvested, honestly performed Murph in 55 minutes respects the workout more than a vested one abandoned at rep 140 with a torn hand. Scale the pull-ups first (banded, jumping or ring rows), the runs second (800 m each), and the push-ups last, since push-ups scale beautifully by elevating the hands.

Exercises in this collection

Frequently asked questions

What is the Murph workout?

A one-mile run, 100 pull-ups, 200 push-ups, 300 air squats and another one-mile run, for time, wearing a 20 lb vest or body armour (14 lb is the prescribed weight for women). It is a CrossFit hero workout named for Lt. Michael P. Murphy, a Navy SEAL killed in Afghanistan on 28 June 2005 and posthumously awarded the Medal of Honor. He trained the workout himself and called it Body Armor. Thousands of gyms run it every Memorial Day.

How long does the Murph workout take?

Well-trained people finish somewhere between 35 and 50 minutes, most regular gymgoers land between 50 and 70, and a scaled first attempt often takes over an hour. Add roughly 10 to 20 percent for a vest. If your half Murph takes 30 minutes, double it and add a couple of minutes for accumulated fatigue and you have a fair estimate.

Should I partition Murph or do it straight through?

Partition it, unless you have a specific reason not to. Twenty rounds of 5 pull-ups, 10 push-ups and 15 squats (the Cindy partition) is the same total work arranged so no single muscle ever accumulates a long set, and it is faster for almost everyone. Straight through is a legitimate harder variant, but it turns the workout into a 100-rep pull-up test with a run attached, and most people stall there rather than anywhere else.

How long should I train before attempting Murph?

Eight weeks of specific preparation is a sensible minimum if you can already do 10 strict pull-ups and 30 push-ups. Below that, spend a block building the pull-up and push-up capacity first, then run the eight-week ladder. The single worst version is attempting the full prescribed workout cold once a year, which is exactly the pattern behind most of the injuries and hospital visits associated with it.

Do I need a 20 lb weight vest for Murph?

Only for the prescribed version, and only once you can complete the workout unweighted in about an hour with your form still intact. A vest adds around 10 to 12 percent bodyweight to 500 reps and lands most of it on your lower back during push-ups, which is where technique fails first. A clean unvested Murph is a better result than a vested one you abandon.

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