Tabata is a high-intensity interval protocol: 20 seconds of all-out work, 10 seconds of rest, repeated 8 times for exactly 4 minutes. This timer plays the beeps for every phase, counts the rounds and keeps your screen awake so all you have to think about is the movement.
Where Tabata comes from
The method is named after Japanese researcher Izumi Tabata, who in 1996 published a study with colleagues at the National Institute of Fitness and Sports in Tokyo, using speed skaters on stationary bikes. The group that did 20 s of very hard effort (about 170% of VO2 max) followed by 10 s of rest, 8 times, 5 days a week for 6 weeks, improved both aerobic and anaerobic capacity. The key was intensity: the effort was truly maximal, not a comfortable pace. That is why the "Tabata" you see in 40-minute classes with long breaks is not the original protocol.
How to use the timer
The default values (20 s work, 10 s rest, 8 rounds) are already the classic Tabata. You can change the times and the number of rounds and add several sets with a rest between them, for example 4 sets of 4 minutes with a 1-minute break, each set with a different exercise. The 10-second get-ready countdown gives you time to get into position; set it to 0 if you would rather start right away. The last 3 seconds of every phase play short beeps, and a phase change has a longer, higher beep. Turn on the voice to hear "go" and "rest" without looking at the screen.
How to program a Tabata workout
- A single exercise (classic): bike, jump squats, burpees, rowing or running in place, 8 rounds.
- Two alternating exercises: A on odd rounds and B on even rounds, for example squats and push-ups. This is the most common variation in CrossFit.
- Four 4-minute blocks: one block for legs, one for pushing, one for pulling and one for the core, with 1 minute of rest between them. Use the sets option.
- Beginner version: 20/20 or 30/30 for 6 rounds, with low-impact movements.
Common mistakes
The most frequent mistake is choosing an exercise that is too technical: Olympic lifting under fatigue produces sloppy reps and injury risk. Pick simple movements with a pace you can sustain. The second mistake is starting too hard and collapsing in round four; the goal is to hold the same number of reps across all 8 rounds, and your score is the lowest count among them. Write down each round's score and try to match or beat it next time. Finally, do not treat Tabata as a warm-up: it is a workout on its own and needs proper rest before and after.
Scaling and rest
If 20 seconds is too much, reduce the intensity, not the time: swap the jump for a plain squat, or use 15/15. Beginners can do 2 to 3 sessions a week, with a rest day in between. Trained athletes often use Tabata as a finisher after strength work, or as a short workout on days with little time. Do not attempt the protocol with heart or blood pressure problems without medical clearance.
Who it is for
People with little time who want a strong cardio stimulus, CrossFit, running and combat sports athletes who want to improve recovery between efforts, and coaches who need a reliable timer. For other formats, see the full CrossFit timer, the EMOM timer, the AMRAP timer and the For Time timer.