BJJ vs Judo: Which Should You Learn?

In the 1910s a judoka named Maeda Mitsuyo was teaching Kanō Jigorō's art in Brazil. A family called Gracie took the half of it that happens on the floor and spent the next hundred years finding out how far it could go. So the two grappling arts most people now choose between are not rivals from different countries; one is the parent of the other. They still share a gi, most of the throws and a good part of the ground technique, and each will tell you the other has forgotten something important.

The short answer: they train opposite halves of the same fight. Judo trains the throw and treats the ground as a short epilogue; BJJ trains the ground and treats standing as a way to get there. That one difference explains the rules, the injuries, the cost and the culture, and it is the only thing you need to understand to pick the right one.

What judo actually is

Judo is the art Kanō distilled from jujutsu in 1882 and turned into a sport with rules, a belt system and a school programme. The goal of a match is ippon: a throw that lands the opponent largely on the back with speed, force and control, a pin held for twenty seconds, or a submission by arm lock or strangle. A clean throw ends the fight in a second. Everything in judo training is organised around producing that second against a person who is trying to produce it first.

A judo class is structured and physical. It starts with breakfalls, ukemi, because you will be thrown hundreds of times before you throw anyone. Then uchikomi, repeating the entry of a throw without finishing it, over and over, until the hips arrive before the thought does. Then randori, free practice standing and on the ground. The ground work is real and good, especially pins and strangles, but the referee stands the fighters up when nothing is happening, so judoka learn to attack fast on the ground or not at all. Since 2010 the international rules also forbid grabbing the legs, which took the wrestling-style takedowns out of the sport and made grip fighting for the upper body the heart of the game.

Judo is an Olympic sport with one world federation, the IJF, uniform rules everywhere, and a club structure that goes down to eight-year-olds. That structure is its biggest practical advantage: judo is in almost every town, costs a fraction of a commercial gym, and is one of the best-run children's sports on earth. The full story is in our history of judo.

What BJJ actually is

Brazilian jiu-jitsu took the ground half of Maeda's judo and gave it a century of undivided attention. The Gracie family's insight was that a smaller person could survive and win from underneath – the guard – by using the legs to control distance, and that a match on the ground could last as long as it needed to. Today's BJJ is a sport of positions: pass the guard, take mount or the back, finish with a submission. Matches are won by the tap or, when time runs out, by points for the positions reached.

A BJJ class looks different. The technique of the day is drilled without much resistance, then comes positional sparring from a set position, and the session ends with several rounds of free rolling. Rolling is the point of the whole thing. BJJ practitioners spar at nearly full effort almost every session, which is possible because tapping ends a submission before anything breaks, and because the ground is a forgiving place to fall. Standing technique gets far less time; in many gyms people simply sit down or pull guard, and takedowns are taught the way most people learn to floss: acknowledged as important, done occasionally.

BJJ has no single federation. The IBJJF runs the largest gi tournaments, ADCC is the main no-gi event, and dozens of regional and professional organisations run their own rules. Gi and no-gi are effectively two sports with different grips and different legal submissions; leg locks in particular are far more present in no-gi. Where it came from and how it reached the UFC is in BJJ: From Maeda to the Gracies.

Where the fight happens

This is the whole comparison in one line. A judoka wants the fight decided standing, in a second, by a throw; a jiu-jitsu practitioner wants it on the ground, where it can take five minutes and end with a choke. Both are complete grappling arts on paper – judo has newaza, BJJ has takedowns – but training time tells the truth. A typical judoka spends perhaps three quarters of the session standing; a typical BJJ student spends three quarters on the ground. After two years, each is very good at their half and merely adequate at the other.

So the question is not which art is better. It is which half of a grappling fight you want to be good at first. If you picture yourself throwing someone, controlling the standing clinch and staying on your feet, judo trains exactly that. If you picture yourself escaping from underneath a bigger person and finishing with a choke, that is BJJ, and nothing else trains it as well.

Rules shape the art

Rules are not a detail. They are the reason the two arts feel different the moment you step on the mat.

• Judo's short ground phase means judoka attack on the ground instantly – a strangle within seconds of the throw – or give up and stand. It produces fast, aggressive newaza and no patient guard play at all.
• Judo's leg-grab ban, in force since 2010 and tightened in 2013, removed double-leg and single-leg takedowns. Judo throws are upper-body throws: hips, shoulders, foot sweeps. Against a wrestler or an MMA fighter that is a gap you have to fill yourself.
• BJJ's long rounds and guard pulling mean you can start the fight lying down, which is efficient for the sport and useless on the street. Some gyms drill takedowns every session; many do not.
• BJJ's leg locks, legal in no-gi and at advanced gi levels, add a whole layer of submissions judo does not have. They are also where many of the serious injuries happen, because a heel hook damages the knee before it hurts.

Injuries, honestly

Judo has the higher acute injury rate. Being thrown is the point, and even with good breakfalls the shoulders, collarbones, knees and fingers take punishment; competitive judo is one of the more injury-prone Olympic sports. BJJ injures fewer people per session but grinds: necks from stacking, lower backs from guard play, fingers from gi grips, elbows and knees from submissions caught a moment late. Over ten years the two arts probably cost a similar amount of cartilage. Over one year, BJJ is the gentler start, especially for adults over thirty who have never fallen for a living.

Cost, access and culture

Judo is a club sport: volunteer or part-time coaches, public halls, national federations, subsidised in many countries, fees often in the range of 20 to 50 euros a month, one gi that lasts for years. Children's judo is everywhere. Adult judo is thinner in some countries – many clubs are youth-heavy, and the adult class can be small.

BJJ is a business: commercial gyms with full-time instructors and rent to pay, monthly fees that in Europe and North America often run to 80 to 150 euros, a gi and a no-gi kit, and a culture that is almost entirely adult. It also arrived in most of the world only in the last twenty years, and the price reflects the model, not necessarily the teaching. The upside is that the adult beginner is the normal customer, classes run every evening, and the atmosphere is relaxed. The downside is the bill, and a wide spread in teaching quality that a belt on the wall does not guarantee.

Time to competence

BJJ pays you sooner. Within six months of consistent training you can survive, escape bad positions and occasionally finish someone at your level; within two or three years you are dangerous to any untrained person on the ground. Judo takes longer to feel like anything, because throwing a resisting adult is one of the hardest skills in combat sports, and the first year is largely learning to fall. A judoka with three years is a formidable standing grappler. A judoka with one year mostly knows how not to get hurt, which is less glamorous and more useful than it sounds.

Choose judo if …

• You want to be able to put someone on the floor and stay on your feet.
• You want an Olympic sport with clear rules, a real ranking ladder and a club near you.
• You are signing up a child, or you want to train on a small budget.
• You enjoy explosive, timing-based technique and do not mind falling a thousand times.

Choose BJJ if …

• You want to win once a fight is on the ground, against bigger people included.
• You want to spar hard every session with a low risk of acute injury.
• You are an adult starting from zero and want a gym built for that.
• You are interested in MMA, where the ground game decides many fights.

Doing both

The best grapplers in the world do both, in one order or the other. Judo gives BJJ students the takedowns and grip fighting they usually lack; BJJ gives judoka the patient ground game their rules never let them develop. If you can only afford one, start with the one that matches the fight you imagine, then add the other once the basics are in. Expect a few habits to clash. A judoka's instinct to turn belly-down after a throw is fine under judo rules and hands a BJJ opponent the back. But the two arts were one a century ago, and they still fit.

Where to go next

• The hubs: Judo and Brazilian Jiu-Jitsu.
• How they split: Judo: Kanō Jigorō and the Gentle Way and BJJ: From Maeda to the Gracies.
• The words you will hear on day one: Ippon, Waza-ari, Ne-waza, Kumi-kata.