A back-attack position built from a leg, not a torso. The truck traps one of a turtled opponent's legs, drops him onto his own shoulder, and opens a finishing tree — calf slicer, banana split, twister — that classic seatbelt back control never touches. Eddie Bravo built it from a wrestling leg ride; 10th Planet built a competitive era on top of it.
On 2 June 2014, at the first Eddie Bravo Invitational in Los Angeles, a 10th Planet black belt named Geo Martinez met Brandon Walensky in the featherweight semifinal. Martinez had been a black belt for a matter of months. He was not the biggest name on the card, and EBI's submission-only, overtime-decided format was still an unproven experiment run by a man most of the sport still filed under "rubber guard guy." Martinez ended the match with a calf slicer, off a position most of the room's wrestling-and-gi background had never been asked to defend: one of Walensky's legs trapped, hooked, and isolated while Martinez lay across his own shoulder blades, weight pinning the hip, shin already behind the knee.
He went on to beat Jeff Glover in the final, in overtime, and became the first EBI featherweight champion. Over the next decade Martinez built the closest thing the sport has to a signature competitive identity out of that one position — enough that BJJ Fanatics eventually released a four-volume instructional under his name with no other subject.
The position is called the truck. It does not look like back control, because it is not attacking the torso at all. It is attacking a leg — and from there, the back, the calf, and the spine follow.
This is not a story about Geo Martinez. It is a story about a position Eddie Bravo pulled out of a wrestling leg ride and turned into one of the most recognizable exports of the 10th Planet system.
The truck does not control an opponent's chest. It controls his leg — and once his leg is trapped, his back, his calf, and his spine all become negotiable at once. That is the one sentence that separates it from every other way of attacking a turtled opponent.
The truck's roots are in wrestling, not jiu-jitsu. Leg riding — pinning a downed opponent's leg to control his hips and set up a turn or a pin — has been part of folkstyle and freestyle wrestling for as long as those sports have existed, and it survives in the modern grappling world under names like the "backpack" ride popularized by wrestling-derived instructors such as Ethan Lizak. Eddie Bravo, who wrestled before he trained jiu-jitsu, has said he first learned a version of the leg ride in high school and began adapting it under jiu-jitsu rules as a blue belt — not to pin, the wrestling goal, but to submit.
What Bravo did with that borrowed idea is the same thing he did with the rubber guard: he gave every piece of it a name, ordered the pieces into a teachable sequence, and built it into the spine of 10th Planet Jiu-Jitsu, the no-gi system he founded in Los Angeles in 2003 after being awarded his black belt by Jean-Jacques Machado. His stated argument — that the back-mount of gi jiu-jitsu let a turtled opponent "survive" indefinitely, and that MMA and no-gi grappling needed a way to make turtle a losing decision rather than a stall — is the same argument that produced the rubber guard: solve the problem the gi lets you ignore.
The position's first wide public codification came through Bravo's 2007 instructional Mastering the Twister, released with a companion book of the same title (Eddie Bravo, Erich Krauss, and Glen Cordoza, with a foreword by Joe Rogan). The DVD is framed around the twister — Bravo's signature spinal lock — but its actual content is built on the truck: the instructional explicitly lays out the truck as "Bravo's patented control position" and the entry system that makes the twister reachable. For nearly a decade, that release was the primary codified source for the position outside 10th Planet's own gyms.
The second, more focused codification arrived through competitors rather than the founder. Geo Martinez — a 10th Planet black belt out of San Diego, promoted by Eddie Bravo in January 2014 — built his entire competitive identity around the truck and its calf slicer, winning EBI's first featherweight tournament in 2014 and going on to a multi-time EBI championship and ADCC trials record on the strength of it. BJJ Fanatics eventually released Truck The World under his name — a four-volume instructional dedicated entirely to the position: entries from turtle, top, and half guard; control variations named in 10th Planet's house vocabulary; and the finishing tree of calf slicers, twister setups, and the crotch-ripper hip extension. Unlike Mastering the Twister, which treats the truck as a means to a different submission, Truck The World treats the truck itself as the subject — the clearest single piece of evidence that the position, and not merely its finishes, is what the sport considers worth studying on its own.
The name itself is one of the position's few genuinely unresolved details. 10th Planet's own community has debated the origin of "the truck" in its forum without a definitive answer from Bravo on record; this article treats the name as established usage rather than asserting a specific etymology.
The truck is a back-attack position, but it is built and held through a leg, not through the torso. That single fact is what makes it a distinct position rather than a variation of standard back control, and it is worth stating precisely before describing the mechanics: in the seatbelt-and-hooks back control taught throughout the sport, the attacker's grips are on the opponent's upper body — over one shoulder, under the opposite armpit — and the legs are hooks that hold the hip line. In the truck, the relationship inverts. The attacker's legs (or one leg and a shoulder) trap and isolate one of the opponent's legs, and it is that leg entanglement, not an upper-body grip, that holds the position together. The two systems can transition into one another, but they are not the same tool, and a defender who has drilled escaping the seatbelt has not necessarily drilled escaping the truck.
The most common entry starts from turtle. The attacker secures one leg hook fairly deep — instep, foot, and part of the shin laid over the opponent's near calf — while staying chest-to-back and controlling the hips rather than the shoulders. From there, the attacker reaches across and grips the opponent's far shin or ankle, leans weight over the opponent's hips (not the back, which invites a roll-through escape), and rolls over the shoulder nearest the opponent's head — away from the opponent's back, not into it. As the roll completes, the trapped leg comes with it: the attacker lands on his own shoulders and upper back, the opponent's captured leg still hooked and now dragged across the attacker's body, and — critically — the opponent's hip stays lifted onto the attacker rather than settling back to the mat. If the hip touches down, the opponent can reverse the position; keeping it elevated is the single detail that separates a held truck from a truck that lasts two seconds. The same entry is reachable from top side control, by hooking the opponent's top leg, gripping the bottom leg, and rotating both shoulders across to the opposite side — useful when a turtle never fully forms.
Once the roll is complete, the attacker is effectively lying across his own shoulder blades with one of the opponent's legs trapped in a figure-four-style leg entanglement — 10th Planet's internal vocabulary names several variations of this leg lace and the reinforcing controls layered onto it (a second hand or leg brought in to lock the hip down, a cross-body shoulder pin, or a wrist and ankle grip on the opponent's free limbs). The opponent's free leg and upper body are still live, which is the position's central defensive problem for the attacker: an opponent who frees his hips before the leg is fully isolated can spin out, and a great deal of the position's coaching is dedicated to preventing exactly that spin before it starts.
A held truck opens onto a family of finishes that the seatbelt-and-hooks version of back control simply does not offer, because they all require the leg entanglement to be live:
Calf slicer. The signature finish and the one most associated with the position in competition. The attacker's shin drives behind the trapped knee and pulls downward, crushing the calf against the shin bone. It requires no grip the opponent can strip and, unlike a strangle, produces pain the opponent feels immediately — which is why it is a common tapping point even at lower belts, where it is legal to drill but, under IBJJF gi rules, restricted to brown and black belt in competition. ADCC permits it across the adult divisions.
Banana split (and the crotch ripper). With the trapped leg controlled, the attacker hooks and pulls the opponent's free thigh while extending the hips, splitting the legs apart against the opponent's own hip and groin structure. The extreme hip-extension version of this crank is the finish 10th Planet material sometimes calls the crotch ripper — one of the more physically blunt submissions in the sport's modern vocabulary, and a technique that draws directly on the leg being pinned by the truck in the first place.
The twister. Bravo's signature spinal lock and the finish the position was originally built to reach. With the leg entangled and the opponent's hips pinned, the attacker works to a cross-body grip that loads rotation and lateral flexion into the opponent's spine simultaneously — a submission that is difficult to set up from almost anywhere else on the mat, which is exactly why the truck exists as a distinct, named position rather than a footnote to back control.
Back-take. When the leg entanglement is live but a submission is not immediately available, the truck converts directly into a conventional back take: the attacker feeds an over-under seatbelt grip while the leg control still occupies the opponent's hips, denying the turn-in that is the standard escape from back control. This is the position's most direct overlap with the seatbelt system — the truck is frequently a route into seatbelt back control, not a competitor to it — but the truck reaches that seatbelt from underneath a trapped leg rather than from a clean two-hooks entry, and an opponent who has only drilled defending the seatbelt has not drilled defending the leg entanglement that got the attacker there.
That distinction is the position's real argument for existing as a separate, codified thing: standard back control is upper-body leverage against a torso that cannot see behind it. The truck is lower-body leverage against a leg the opponent can see perfectly well and still cannot free, feeding an entirely different menu of finishes — the calf slicer, the banana split, the twister — that a torso-based system never opens.
The truck's spread since 2014 tracks almost exactly with the growth of submission-only, no-time-limit formats where leg locks are unrestricted. EBI, and the broader submission-only circuit that followed it, rewards a position that offers multiple simultaneous finishing options against a defender who cannot simply stall to a decision — which is precisely the truck's design brief. Geo Martinez's early EBI run made the position's competitive case; a wider population of no-gi competitors, inside and outside 10th Planet's own affiliation, picked it up over the following decade as leg-lock literacy became a baseline expectation in elite no-gi rather than a specialist's edge.
Gi competition has been slower to adopt it, for a structural reason rather than a stylistic one: the IBJJF restricts the calf slicer — the truck's most direct finish — to brown and black belt, which removes the position's fastest payoff for the large majority of the competitive population training under color belts. Where the truck does show up in gi jiu-jitsu, it is more often as a control tool converting into a conventional back take than as a submission hunt, which is also why some traditionalist coaching treats it as a specialized no-gi and MMA weapon rather than a fundamental everyone needs.
The honest state of the position in 2026 mirrors the rubber guard's: it is not the default way elite no-gi grapplers attack a turtled opponent — most of the highest level of the sport still defaults to a standard back take when it is available — but it is a live, competitively proven, and specifically 10th Planet-coded answer for exactly the moment when a standard back take is not available and an opponent has committed a leg to defense. It remains most visible in the format it was built for: submission-only, no-gi, leg locks legal, decision by overtime rather than points.
White belt should not be drilling submissions from here yet. The useful white-belt lesson is the entry itself — rolling a turtled partner's captured leg over the shoulder without losing the hip connection — repeated until the opponent's hip stays lifted on you rather than settling to the mat.
Blue belt learns to hold the leg entanglement against a resisting partner who knows what is coming. The blue-belt failure mode is a truck that lasts two seconds because the trapped leg was never actually isolated — just draped across the body.
Purple belt starts connecting the position to its finishes: calf slicer when the trapped leg is exposed, back-take conversion when it is not, banana split when the free leg is the better target. The purple belt treats the truck as a decision tree rather than a single technique.
Brown belt — where the calf slicer becomes legal in IBJJF gi competition — adds the position to an actual competitive game plan rather than treating it as a no-gi-only tool, and starts working the twister as a live threat rather than a novelty.
Black belt teaches the entries from every direction — turtle, top side control, failed guard passes — and reads, in real time, which of the finishing branches an opponent's specific defense has left open.
Coral belt can explain exactly how the position descends from a wrestling leg ride, and why a system built to submit a stalling opponent is fundamentally a different tool from a system built to control one who cannot see you.
1. Letting the opponent's hip settle to the mat mid-roll. The single most common failure at every rank below brown belt. If the trapped hip touches down during or after the entry, the opponent has the base to reverse the position before the leg entanglement is ever secured. Keep the hip elevated onto your own body through the entire roll.
2. Grabbing the leg without controlling the hips first. A truck attempt that starts by reaching for the far shin, before the near-side hook and hip control are established, gives the opponent time to base out and defend the roll before it starts. Hips first, leg second.
3. Chasing the calf slicer before the leg is actually isolated. The finish only works once the trapped leg genuinely cannot be withdrawn. Reaching for it early telegraphs the attack and lets an opponent who still has hip mobility simply pull the leg free.
4. Treating the truck as interchangeable with seatbelt back control. Because both positions can lead to a back take, practitioners sometimes assume the escapes are the same. They are not: escaping the truck is a leg-entanglement problem, and a defender who only drills stripping a seatbelt grip will not automatically know how to free a trapped leg.
5. Abandoning hip control the instant a submission looks live. Just as in the closed guard and back control, the finishing attempt should not cost the attacker the base control that got him there. If the calf slicer or banana split is defended, the fallback is to reset the leg entanglement, not to scramble for a different submission from a leaking position.
At open mat this week, isolate the entry only. Start with a partner in turtle and give yourself one job: secure the near-side leg hook, control the hips (not the shoulders), and roll to the truck without letting the opponent's hip touch the mat. No submissions attempted — the round ends the moment the leg entanglement is secure and stable, reset, and go again. Fifteen minutes, same partner, same rule.
Once the entry is reliable, add a second round with a single permitted finish: the calf slicer, and only the calf slicer, from a truck you have already secured. This isolates the leg-isolation problem — driving the shin behind the knee against a partner who is actively trying to withdraw the leg — instead of hunting whatever submission happens to appear.
Repeat weekly for six weeks. Then, and only then, add the back-take conversion as a second option when the calf slicer is well defended.
The truck is a leg-entanglement branch of back control — a different route to some of the same territory, built on a different mechanical premise.
Every connection here runs through the same idea: there is more than one way to make a turtled opponent's back negotiable, and 10th Planet built its reputation on being the system that found the one running through the leg instead of the torso.
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