# AMRAP vs EMOM vs Tabata: What Each One Fixes > AMRAP locks the time and EMOM the work rate, while Tabata locks both. A side-by-side comparison of the 3 interval protocols, with the timer settings for each. Source: https://userounds.app/blog/amrap-vs-emom-vs-tabata AMRAP fixes the time and leaves the work open: you get 20 minutes, and your score is however many rounds you get through. EMOM fixes the work and gives the leftover seconds back as rest, so finishing your reps faster is the only way to earn more recovery. Tabata fixes both ends, 20 seconds on and 10 seconds off for 8 rounds, and the whole thing is over in 4 minutes. A protocol pins one thing down and lets another float. That single choice decides how the session paces itself, what happens to your technique as fatigue arrives, and which of the three is worth your time on any given day. ## Side by side | Protocol | What is fixed | What you control | Typical duration | Timer settings | Good for | Failure mode | | --- | --- | --- | --- | --- | --- | --- | | AMRAP | Total time | Work rate, rest, round count | 8 to 20 minutes | One interval of 8:00 to 20:00, rest 0, rounds 1 | Going for a better score, testing pacing, mixed circuits | Sprinting the first 3 minutes, then surviving the rest | | EMOM | Work per minute | Reps, load, how fast you finish | 10 to 30 minutes | Work 60s, rest 0s, rounds = minutes | Volume at repeatable quality, skill work, steady conditioning | Rep count so high that rest vanishes by round 6 | | Tabata | Work and rest both | Intensity and movement choice | 4 minutes | Work 20s, rest 10s, rounds 8 | One maximal piece on a bike, rower or sprint | Going easy enough that all 8 rounds feel the same | Read that table as 3 answers to one question: which variable do you want the session to argue with you about? ## AMRAP: the clock is fixed, the work floats AMRAP stands for As Many Rounds As Possible, or As Many Reps As Possible depending on the workout. You get a block of time and a circuit, say 5 pull-ups with 10 push-ups and 15 air squats, and you repeat it until the buzzer. The score is rounds completed plus any extra reps. Rest is allowed. You just pay for it out of your own score. That makes AMRAP the only protocol of the 3 where pacing is itself the skill being tested. **Timer settings:** set one interval the length of the block, with rest at 0 and rounds at 1. AMRAP 20 is a single 1200 second countdown with nothing in the middle. If you want a mid-point cue, split it into two 600 second rounds with 0 rest so the timer beeps at halfway and keeps going. **What it does to pacing:** it hands you every decision. Most people open at a pace they can hold for 4 minutes and spend the remaining 16 paying for it. An even pace that feels too comfortable in minute 2 nearly always scores higher, and the way to find it is to count your first-round time and refuse to beat it for the first half. **What it does to form:** an AMRAP rewards output per minute and has no built-in pause, so technique erodes gradually rather than obviously. Choose movements you can still perform correctly while breathing hard, and set a personal rule for the session, such as splitting a set of 10 push-ups into 2 sets of 5 once the reps start sagging. ## EMOM: the work rate is fixed, the rest is what you have left The name says it: a set of work starts at the top of each minute. Finish the reps, rest for whatever is left and go again at the next beep. Faster reps mean longer rest, which is the small incentive that keeps an EMOM honest. **Timer settings:** set work to 60 seconds, rest to 0 and rounds to the number of minutes. The rest field stays at zero, because the rest is the remainder of the minute rather than a separate interval. [The full EMOM guide](/blog/emom-timer-guide) covers the variants, rep-count selection and what to log. **What it does to pacing:** it removes the decision entirely. The clock sets your work rate for the whole session, so an EMOM cannot drift into the long unplanned rests that eat a self-paced session. This is why EMOM is the format that accumulates volume without turning into a race. **What it does to form:** the forced pause protects technique better than either of the other two. A round starts from a stationary position with a few seconds of breathing behind it, so loaded barbell work, gymnastics practice and anything with a technical floor tends to live in an EMOM. The tempting error is the opposite one, rushing the reps to buy rest, which converts a clean set of 5 hang cleans into 5 sloppy ones for 20 seconds of extra rest. Aim for a rep count that takes roughly 40 seconds, leaving 20 seconds of rest. Under 25 seconds of work and the session is a long warm-up. Over 50 and you have built a 20 minute set with a beep in the middle. ## Tabata: both ends fixed, 4 minutes on the clock 20 seconds of work with 10 seconds of rest across 8 rounds: 4 minutes including the final rest. The only variable left to you is how hard you go, which is exactly the variable the protocol was designed to test. **Timer settings:** work 20s, rest 10s, rounds 8, with a 10 second lead-in. [The Tabata setup guide](/blog/how-to-set-a-tabata-timer) covers the audio cues and the longer 30/15 and 40/20 variations that borrow the same shape. **What it does to pacing:** nothing, deliberately. Pacing barely applies over 8 short rounds. Round 1 should be close to everything you have, and the honest sign of a well-chosen intensity is that rounds 7 and 8 are worse than round 1 by a visible margin. **What it does to form:** 20 seconds is short enough that most people hold position, provided the movement is cyclical and low-skill. Barbell complexes and box jumps at Tabata intensity are where this stops being true, and they are the reason most Tabata work belongs on an air bike, a rower or a hill. ## The 1996 study's protocol The protocol comes from "Effects of moderate-intensity endurance and high-intensity intermittent training on anaerobic capacity and VO2max", published by Izumi Tabata and colleagues in *Medicine & Science in Sports & Exercise* in October 1996. The high-intensity group performed 7 to 8 bouts of 20 seconds at roughly 170% of VO2max on a mechanically braked cycle ergometer, with 10 seconds between bouts. The schedule ran 5 days a week for 6 weeks. A comparison group cycled 60 minutes at 70% of VO2max on the same schedule. The high-intensity group improved VO2max by about 7 ml/kg/min and anaerobic capacity by around 28%. The moderate group improved VO2max and showed no significant change in anaerobic capacity. The number that matters there is 170%. That is an intensity you can sustain for seconds, on a machine that measures your output so there is nowhere to hide, and the study reports subjects who could not complete the 8th bout. What a gym class calls Tabata has usually kept the 20/10 clock and dropped the intensity that made the clock interesting. Bodyweight squats at a pace you could hold for 20 rounds are a circuit wearing Tabata's timer settings. That distinction matters when you are choosing between the three. If you swap an AMRAP for a Tabata because 4 minutes sounds cheaper, you have replaced a moderate 20 minute effort with a 4-minute one that only works at an intensity most gym movements cannot reach. ## Picking one Work backwards from the goal rather than from the format. - A number to chase over weeks: AMRAP. Same circuit, same duration, one score, repeated every 4 to 6 weeks. - Volume at a quality you can hold: EMOM. The clock keeps every round identical. That makes the last round comparable to the first. - Skill practice while mildly tired: EMOM, with a rep count that finishes in 30 seconds. - One hard piece at the end of a session: Tabata, on a machine, once or twice a week. - Teaching pacing to someone who goes out too fast: AMRAP, with the first round timed and read back to them. Running two of the three in one session works well in the order EMOM, AMRAP, Tabata: technical work while fresh, the bulk of the session in the middle, and a short maximal finisher that asks nothing complicated of a tired body. ## 1 timer runs all 3 All 3 protocols reduce to the same 4 fields: work, rest, rounds and a lead-in countdown. Any interval timer that accepts a rest of zero and a work interval longer than 10 minutes can run every workout on this page, which is the practical test to apply when you are [picking a CrossFit timer app](/blog/crossfit-timer-app). The part worth paying attention to is what happens after you press start. An AMRAP wants a running clock you can glance at, an EMOM wants a beep you can hear across a gym floor without looking, and a Tabata wants distinct sounds for work and rest so you never touch the phone. [Rounds](https://userounds.app) is an iPhone interval timer built for exactly that, currently in open beta through TestFlight, and it saves each of these three as a preset you re-run rather than rebuild. Whatever you use, write down what you ran. "AMRAP 15, 5-10-15, 11 rounds + 7" and "EMOM 20, 8 swings, 24kg, failed round 17" are single lines that make next month's session comparable to this one, and comparison is where the protocol choice starts paying off.