The BJJ purple belt: requirements, how long it takes, and how purple belts train
By Scott Flear, founder of JitsAI. Rules from the IBJJF; numbers from 321 purple belts who told us how they train.
Purple is the third adult belt in BJJ. The IBJJF sets a minimum age of 16, at least two years at blue before it, and at least 18 months at purple before brown. In JitsAI’s September 2026 data, 53% of 321 purple belts had trained for five to ten years, and 25% train five or more times a week.
What does a purple belt mean in BJJ?
Purple belt is where a grappler’s own game takes shape. The basics are automatic, so the work moves to connecting positions: a guard that leads to sweeps, a pass that leads to a pin, a pin that leads to a finish.
Purple is also the usual floor for teaching. In the UK, the national governing body, UKBJJA, requires every instructor at a member club to be purple belt or higher from a verifiable lineage.
What are the IBJJF rules for a purple belt?
- Minimum age: 16.
- Minimum time at purple before brown: 18 months for adults. It is 1 year if you were registered as a juvenile blue belt, and there is no minimum if you were a juvenile purple belt or the adult purple belt world champion.
- Juveniles: a 16 or 17-year-old purple belt can only move to brown in the adult division, since brown starts at 18.
- The belt: purple, with a black bar about 10 cm long near one end.
- Competition: adult purple belt matches at IBJJF events last 7 minutes. Find BJJ tournaments in the US or competitions in the UK.
How do stripes work on a purple belt?
Up to four stripes, at the professor’s discretion. The 18-month minimum counts from the day the purple belt is registered with the IBJJF.
How do people earn a purple belt?
Getting to purple takes at least two years at blue under IBJJF rules. In practice, coaches tend to look for a recognizable game: a guard and a passing style that work against other blue belts, and the ability to help newer students.
Purple belts in our data have trained for two to ten years in 83% of cases, and 15% for more than ten.
How do you prove progress between belts?
Belts move slowly, and stripes depend on your gym. JitsAI’s ladder proves progress between belts: every technique you test is scored against the kind of partner it worked on.
- One Focus a week, with pinned lessons from Henrique Rezende’s 74-lesson fundamentals course.
- A nine-level ladder for every technique, from partners less experienced than you to more experienced ones, each split lighter, same weight and heavier.
- Land it once and it’s a hit; 3 wins across 2 sessions and it’s proven.
$1 for 7 days, then $39 a year.
iPhone and Android.
Pick ONE thing One position for the week: an escape, a guard, a sweep.
Test it on everyone A quick check-in after class: who each round was against, and whether it worked.
Hit, then proven Land it once and it’s a HIT. Three across two sessions and it’s PROVEN.
Know what works See what holds up, against whom, then pick your next Focus.
How often do purple belts train?
Purple belts most often train three or four times a week: 51% said so. 25% train five or more times a week, against 17% of all members, and 25% once or twice. The how often to train BJJ guide compares every belt.
Do purple belts train gi or no-gi?
Most train both: 63% of purple belts. 26% train in the gi only, and 11% no-gi only.
Do purple belts compete?
64% of purple belts compete often or sometimes, against 41% of all members. Another 16% said they want to but haven’t yet. Divisions are split by weight: see the BJJ weight classes.
Why do purple belts train?
Members could pick several reasons. For purple belts, the top two were discipline (63%) and competition (59%).
These are patterns in who answered, not causes: training more often is not shown to make anyone progress faster.
What should a purple belt work on?
Purple is a good time to find where your game breaks. Most plateaus sit in one position that keeps failing against the same kind of partner, not in the whole game.
Test one position a week on partners who are heavier and more experienced, not only the ones it already works on. How to get better at BJJ has the weekly plan and a printable template.
What else do people ask about the purple belt?
How long does it take to get a purple belt in BJJ?
At least two years at blue belt under IBJJF rules, after however long you spent at white. In our data, 83% of purple belts have trained for two to ten years in total.
How long are you a purple belt?
At least 18 months for adults under IBJJF rules, counted from the day the purple belt is registered. And because brown belt starts at 18, younger purple belts wait until the adult division.
How often do purple belts train?
Of 321 purple belts, 51% train three or four times a week, 25% five or more times and 25% once or twice.
Can a purple belt teach BJJ?
Many academies have purple belts coaching classes. In the UK, UKBJJA requires instructors at its member clubs to be purple belt or higher, from a verifiable lineage, with an enhanced DBS check and first aid and safeguarding training.
What is the minimum age for a BJJ purple belt?
16, the same as blue belt. A kids’ green belt who turns 16 can move straight to purple at the professor’s discretion.
About the data
Training frequency and experience: self-reported answers from 3,316 adults (18 and over) who joined JitsAI between 16 October 2025 and 24 September 2026 and told us their belt at sign-up. Snapshot 25 Sep 2026. Full breakdown and a CSV on the BJJ belts page.
What we publish: totals only, groups of at least 50 people, and no share that rests on fewer than 10. Founder accounts are excluded and percentages are rounded. Most members found JitsAI through our ads, so this is a big sample but not a random one, and it leans towards people who want to improve and compete. The numbers describe patterns, not causes.