EMOM, AMRAP, For Time: CrossFit Clock Formats Explained
Walk into a class and hear "12-minute AMRAP" or "EMOM for 20" and, if nobody explains it, you're left guessing what the clock is actually going to do to you. These acronyms describe four genuinely different relationships between you, the work, and the clock — and mixing them up changes both how hard the session is and how you should pace it.
EMOM — Every Minute On the Minute
Start a set piece of work at the top of every minute. Finish it, and whatever time is left in that minute is your rest. Finish faster, rest longer; finish slower, rest less. The clock never stops — it just keeps ticking over to the next minute, on the minute, for the programmed duration.
Example: EMOM 12 — 10 burpees, every minute, for 12 minutes.
If you finish the burpees in 35 seconds, you get 25 seconds of rest before the next minute starts. If you take 55 seconds, you get 5.
EMOMs are self-pacing in a sneaky way: go too hard early and your rest evaporates by minute 6, which is usually the point — it punishes an unsustainable pace in real time rather than at the end.
AMRAP — As Many Rounds (or Reps) As Possible
A fixed time cap, and you move through a set circuit of exercises continuously, counting how many full rounds — or, in some formats, total reps — you complete before the clock stops you. There is no built-in rest; recovery only happens if you choose to slow down, which costs you rounds.
Example: AMRAP 15 — 5 pull-ups, 10 push-ups, 15 air squats.
Score is written as rounds + leftover reps, e.g. "7 rounds + 8 reps." Two athletes doing the identical circuit are compared directly by that score.
AMRAPs reward pacing discipline the way distance running does — start conservatively enough that round 3 looks like round 12, and the score is almost always higher than going out at round-1 pace and collapsing by round 5.
For Time — a fixed amount of work, as fast as possible
The inverse of an AMRAP: the work is fixed and the time is what you're racing. Complete the prescribed rounds or reps and stop the clock; your score is the time on the watch when you finish. Most For Time workouts carry a time cap so a struggling athlete still has an endpoint.
Example: For Time, 21-15-9 — thrusters and pull-ups (the workout "Fran"), 20-minute cap.
Score is your finishing time, e.g. "6:42," or "20:00 cap" if you didn't finish.
This is the format where pacing mistakes are least forgiving — going out too hard doesn't cost you rest, like an EMOM, or rounds, like an AMRAP; it costs you the ability to move at all for the back half.
RFT — Rounds For Time
A close cousin of For Time: a fixed number of rounds of a circuit, completed as fast as possible, rather than a single fixed rep scheme.
Example: 5 RFT — 400m run, 15 kettlebell swings, 10 box jumps. Five full rounds, one score: total time.
Side-by-side
| Format | What's fixed | What you're scored on | Clock behavior |
|---|---|---|---|
| EMOM | Work per minute | Consistency (rarely a headline score) | Resets every 60 seconds, self-imposed rest |
| AMRAP | Total time | Rounds + reps completed | Counts down once, continuously, no built-in rest |
| For Time | Total reps/rounds | Time to finish (or cap) | Counts up until you're done, or hits the cap |
| RFT | Number of rounds | Time to finish | Same as For Time, structured as repeated rounds |
Bonus terms you'll hear
- Chipper — a long list of different exercises, done once each, in order, for time. You "chip away" at the list rather than repeating rounds.
- Ladder — reps increase (or decrease) each round, e.g. 1-2-3-4-5... of an exercise, usually for time.
- Death by — an EMOM variant where the rep count increases by one every minute until you can no longer finish inside the minute. The clock format is EMOM; the twist is the escalating workload.
- Tabata — occasionally used inside a CrossFit WOD as one specific round style. It's the strict 20-on/10-off × 8 protocol described in full in the Tabata guide, and it's a different animal from all four formats above because the work interval itself is fixed, not just the total time.
For the bigger picture — how CrossFit relates to HIIT and Tabata as training categories rather than clock formats — see HIIT vs Tabata vs CrossFit.
Setting each one up on a timer
- EMOM — a repeating one-minute countdown with a sound at the top of every minute is exactly what an interval sequence timer does when you set a 1-minute round, repeated for your total duration.
- AMRAP — a single countdown from your cap (12:00, 15:00, 20:00) with no phases inside it. Any countdown timer handles this; the interval timer's single-round mode with audio cues at the halfway point and final minute helps with pacing.
- For Time / RFT — a count-up stopwatch, ideally one you can start the instant the clock says "go" and stop the instant the last rep lands. The site's stopwatch is built for exactly this — press once to start, once to stop, and the time is your score.
Common mistakes
Pacing an AMRAP like a For Time
There's no reward for finishing an AMRAP early — the clock doesn't stop until the cap does. Going out at a pace you can't hold for the full duration just means slower rounds later, not a faster finish.
Pacing a For Time like an AMRAP
The reverse mistake: holding back in a For Time workout because "there's more time on the clock" ignores that your score is the clock. Every second saved matters, unlike an AMRAP where only whole rounds and reps count.
Not knowing the cap until you're inside it
Time caps change strategy. A 12-minute AMRAP where you know the cap up front lets you plan a negative or even pace. Finding out the cap mid-workout means you were pacing blind.
The short version
EMOM fixes the work-per-minute and lets rest vary. AMRAP fixes the total time and scores the work you fit inside it. For Time and RFT fix the work and score the time it took. Four different games from the same building blocks — know which one you're in before the clock starts, because the right pacing strategy is different for each.