A CrossFit WOD is the “Workout of the Day,” the specific set of exercises programmed for each training session at a CrossFit gym. Every day brings a different combination of movements, rep schemes, and time structures, and the WOD is the centerpiece of the session. It’s what gets posted on the gym whiteboard (or website) each morning, and every member in the class does the same workout, scaled to their ability.
How a WOD Is Structured
A full CrossFit class isn’t just the WOD itself. Most sessions run 45 to 60 minutes and follow a predictable arc. You’ll start with a warm-up of stretching and light movement, then move into a strength or skill portion (think squats, deadlifts, or practicing a specific gymnastic movement like a muscle-up). The WOD comes last and is typically the highest-intensity part of the session, combining cardiovascular conditioning with functional movements to push your heart rate up and keep it there.
The philosophy behind every WOD comes down to three principles: constantly varied functional movements executed at high intensity. “Constantly varied” means the workouts change daily so your body never fully adapts to a single stimulus. “Functional movements” means exercises that mimic real-life actions like pulling, pushing, squatting, and lifting objects from the ground. “High intensity” means you’re working near your capacity for the duration of the workout, whether that’s 7 minutes or 25.
Common WOD Formats
WODs generally follow one of two principles: they’re either time-based (you work within a set clock) or task-based (you complete a set amount of work as fast as possible). A few formats show up repeatedly.
- AMRAP (As Many Rounds/Reps As Possible): You get a fixed time window, usually 10 to 20 minutes, and cycle through a list of exercises as many times as you can. Your score is total rounds and reps completed. The 2025 CrossFit Open kicked off with an AMRAP: 15 minutes of lateral burpees, dumbbell clean-to-overheads, and walking lunges, adding 3 reps to certain movements each round.
- RFT (Rounds For Time): The opposite approach. You’re given a specific number of rounds and exercises, and your goal is to finish them as quickly as possible. Your score is your completion time.
- EMOM (Every Minute on the Minute): You perform a set number of reps at the start of each minute. Whatever time remains in that minute is your rest. If the reps take you 35 seconds, you rest 25 seconds. If they take 55 seconds, you get 5 seconds of rest. This format naturally punishes pacing mistakes.
You’ll also see Tabata intervals (20 seconds of work, 10 seconds of rest, repeated for 8 rounds) and chipper-style WODs, where you work through a long list of movements once, grinding from start to finish.
Benchmark WODs: The Girls and Hero Workouts
Certain WODs have names and get repeated over months or years so you can measure your progress. These are benchmark workouts, and they fall into two main categories.
“The Girls” are named after women (a nod to the way hurricanes were traditionally named, because these workouts hit hard). The original set includes Fran, Diane, Grace, Helen, and others. Fran, for example, is 21-15-9 reps of thrusters and pull-ups, done for time. These workouts are designed to be brutally simple and expose weaknesses. If your Fran time drops from 8 minutes to 5 minutes over six months, that’s concrete evidence of improved fitness. There are now over two dozen Girl WODs, with newer additions like Grettel, Ingrid, and Lyla joining the original eight.
“Hero WODs” are named after fallen first responders and military service members. They tend to be longer, heavier, and more punishing than the Girls. Murph, perhaps the most famous, involves a one-mile run, 100 pull-ups, 200 push-ups, 300 squats, and another one-mile run, all while wearing a 20-pound weight vest. These are typically programmed on memorial days or special occasions.
What WODs Do to Your Body
The mix of weightlifting, gymnastics, and cardio in a WOD creates a training stimulus that’s hard to replicate with traditional gym routines. CrossFit imposes high cardiorespiratory and metabolic demands simultaneously, which means your heart, lungs, and muscles all adapt together rather than in isolation.
On the cardiovascular side, sustained elevated heart rates during WODs improve your body’s ability to circulate blood and use oxygen efficiently. Research has also found a blood-pressure-lowering effect after CrossFit sessions, with reductions in both systolic and diastolic pressure that may lower cardiovascular risk factors over time.
On the strength side, the gains are measurable. Twelve weeks of regular CrossFit training can increase maximal strength by 9 to 17%, with improvements in lean body mass of about 1 kilogram. One study found that untrained individuals improved their squat strength by 10% and shoulder press by 4% after just nine weeks. Another showed a 14% increase in front squat performance after 16 weeks in recreationally active adults. Because WODs frequently include Olympic lifting variations like cleans and snatches at high reps, they also build muscular power and endurance in ways that carry over to everyday physical tasks.
How Often to Do WODs
Most CrossFit programming runs five or six days per week, mixing strength, skill, and conditioning in as many combinations as possible. That doesn’t mean you should train all six days, especially when you’re starting out. The intensity of WODs creates real recovery demands, and insufficient rest between high-intensity sessions significantly increases injury risk.
A common starting schedule is three or four days per week with at least one rest day between consecutive training days. As your fitness improves and your body adapts to the volume, you can increase frequency. The key is that not every session needs to be an all-out effort. Good programming includes periods of lower intensity to allow your body to recover and actually absorb the training stimulus. If you’re consistently sore, losing motivation, or seeing performance decline, you’re likely doing too much too soon.
Scaling a WOD
Every WOD is written with a prescribed (“Rx’d”) standard, meaning specific weights, movements, and rep counts. But WODs are designed to be scaled, and this is one of the defining features of CrossFit programming. A workout calling for pull-ups might be scaled to ring rows. A barbell weight of 135 pounds might drop to 95 or 65. The goal of scaling is to preserve the intended stimulus of the workout (how it should feel, how long it should take) while matching it to your current ability.
Even the CrossFit Open, the largest competitive event in the sport, offers Rx’d, Scaled, and Foundations divisions for every workout. Scaling isn’t a sign of weakness. It’s built into the system.