Estima Lock

What is the Estima Lock? (Definition & Historical Context)

The Estima Lock is a foot lock submission in Brazilian Jiu-Jitsu that targets the ankle and foot through forceful twisting pressure. Developed by brothers Victor Estima and Braulio Estima in the late 2000s, the technique gained widespread recognition after Victor Estima famously utilized it to win the 2011 IBJJF No-Gi World Championship, submitting all his opponents with this innovative submission. Since then, the Estima Lock has become a prominent feature in elite competitions such as ADCC, EBI, and Kasai, establishing itself as a staple in modern submission grappling.

Biomechanics and Technical Principles of the Estima Lock

Anatomical Targets and Mechanics

The Estima Lock primarily attacks the ankle joint complex—specifically the subtalar and talocrural joints—by forcing the foot downward and inward (plantarflexion and inversion). This motion places significant strain on the lateral ankle ligaments, notably the anterior talofibular and calcaneofibular ligaments.

Grip and Positioning

To secure the Estima Lock, the attacker employs a rear-naked choke (RNC)-style grip, wrapping one forearm tightly beneath the opponent's Achilles tendon and heel, while the other hand clasps firmly over the foot to reinforce the hold. The top of the opponent's foot is pinned securely against the attacker's abdomen, with the toes pointed inward toward the torso.

Finishing Mechanics

To finish the submission, the attacker rotates their torso toward the captured foot and drives their hips forward, generating a powerful twisting torque similar to a Toe Hold. Unlike a straight ankle lock—which primarily hyperextends the foot linearly—the Estima Lock incorporates a rotational component, making it mechanically akin to a toe hold but distinct in grip and positioning. It also differs from the Aoki Lock, which twists the foot outward (eversion) from an inside entanglement, whereas the Estima Lock twists inward (inversion) from an outside position.

Common Mistakes When Applying the Estima Lock

Several frequent errors can compromise the effectiveness of the Estima Lock:

  • Loose Foot Control: Allowing space between the attacker's body and the opponent's foot enables easy escapes. A deep, tight RNC-style grip around the ankle is essential.
  • Pulling Upward Instead of Crunching Inward: Attempting to lift the opponent's foot upward using arm strength alone reduces pressure. Proper execution involves pulling the foot into the abdomen while crunching the upper body downward.
  • Incorrect Angle of Attack: Neglecting to rotate the torso toward the opponent's toes results in a weaker, linear ankle lock rather than the intended rotational submission.
  • Prematurely Falling Back: Dropping backward before fully securing the grip and position can loosen the hold, providing the opponent an opportunity to escape.
  • Lack of Leg Isolation: Focusing solely on the foot without controlling the opponent's leg or hip allows easy escapes. Effective execution involves pinching elbows, driving knees into the opponent's hip, or placing a leg over their thigh to immobilize the limb.

Effective Defenses and Escapes from the Estima Lock

Successfully defending the Estima Lock requires quick recognition and strategic countermeasures:

  • Early Foot Withdrawal: Immediately removing the foot at the first sign of danger prevents the attacker from securing the lock.
  • Avoiding the Trap: When playing guard, avoid placing the entire foot flat on the opponent's hip or torso. Instead, use only the toes or ball of the foot to facilitate rapid withdrawal.
  • Rolling with the Pressure: Rolling in the direction of the twisting force can alleviate ankle torque and potentially free the foot.
  • Straightening and Stiffening the Leg: Temporarily straightening and stiffening the trapped leg can delay the submission, providing valuable time to hand-fight or initiate an escape roll.
  • Counter-Attacks and Scrambles: Exploiting the attacker's commitment by initiating a counter footlock or scrambling to a superior position can be effective, though it carries inherent risks.

High-Percentage Setups and Strategic Applications

The Estima Lock is most effective when applied opportunistically during transitions:

Guard Passing Counters

  • Foot-on-Hip Defense: Frequently utilized when opponents place a foot on the hip or abdomen to defend guard passes, such as knee-cut passes.
  • Lasso Guard Counter: Highly effective against opponents attempting to establish a lasso guard, turning their hook into a vulnerability.
  • Torreando (Bullfighter) Pass: During dynamic side-to-side passing movements, attackers can quickly capitalize on exposed feet.

Guard and Leg Entanglements

  • Reverse De La Riva Guard: Often exposes the foot on the hip, making it susceptible to the Estima Lock.
  • 50/50 and Single-Leg X Positions: Can be applied instantly without needing to clear leg entanglements, providing a swift submission threat.

Transitional Scrambles

  • Effective during scrambles when opponents momentarily push off the attacker's body with their foot, such as during inversions or technical stand-ups.

Competition Legality and Rules Considerations

Due to its twisting nature, the Estima Lock traditionally has been legal only for brown and black belts in IBJJF gi competitions. Consequently, it has become significantly more prevalent in no-gi grappling, where leg lock rules are less restrictive. This legality has notably influenced modern submission grappling strategies, making the Estima Lock an essential submission for competitors in no-gi tournaments.

Estima Lock Submission Statistics

Gi vs No-Gi Distribution

50 Submissions
Gi
33 (66.0%)
Nogi
17 (34.0%)

Most Estima Lock Finishes

Percentage of All Submissions

2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
Percentage (%)
Year
Gi
Nogi
Showing the percentage of submissions won using Estima Lock relative to all submission victories in Gi and No-Gi contests

Matches Won by Estima Lock

FightersEventDateWeight
Enrique Galarzadef.Felipe Cesar Silva2023 SOGI Event Heavyweight
2023
Mar 11
Middleweight
Daniel Mairadef.Dennis Pressey Jr.2022 World IBJJF Jiu-Jitsu No-Gi Championship
2022
Dec 8
Featherweight
Jed Huedef.Paul CraigPolaris 21
2022
Oct 8
Giancarlo Bodonidef.Eoghan O’flanagan2022 ADCC World Championships
2022
Sep 17
-88kgs
Elisabeth Claydef.Raiane Santos2022 Brasileiro CBJJE
2022
Jun 21
Medium Heavyweight
Marcelo Faustodef.Johnny Tama2022 World Jiu-Jitsu IBJJF Championship
2022
Jun 2
Lightweight
Enrique Galarzadef.Steve Joachim2021 Emerald City Invitational Event #3
2021
Dec 4
Renato Canutodef.Thiago Aso2021 - 3CG The Underdogs
2021
Oct 23
Middleweight
Gabriel Almeidadef.Mateusz Flaga2021 World IBJJF Jiu-Jitsu No-Gi Championship
2021
Oct 7
Absolute Division
Alex Munisdef.Claudio Calasans2021 AJP South America Continental Pro
2021
Jun 5
Middleweight
Yatan Buenodef.Andrey Cerqueira2021 AJP South America Continental Pro
2021
Jun 5
Ultra Heavyweight
Francisco Jonas Andradedef.Hiroki Sugimoto2020 Abu Dhabi World Professional Jiu-Jitsu Championship
2021
Apr 6
56kgs
Victor Hugodef.Fellipe Andrew3rd Coast Grappling Kumite 2
2020
Jun 21
Victor Hugodef.Fellipe Andrew2020 Third Coast Grappling: KUMITE II
2020
Jun 20
Heavyweight
Santeri Liliusdef.Thomas Trintignac2020 European Jiu-Jitsu IBJJF Championship
2020
Jan 20
Absolute Division
Vinícius “Trator” Ferreira Gazoladef.Eliot Kelly2019 World IBJJF Jiu-Jitsu No-Gi Championship
2019
Dec 12
Super Heavyweight
Justin Ricedef.Rodolfo CanalesFight 2 Win 121
2019
Aug 10
165lbs
Pedro Paulo Agrizzidef.Ashur Darmo2019 IBJJF Cincinnati Open
2019
Mar 9
Absolute Division
Lucas Valentedef.Raphael Cadena2018 IBJJF Nashville Fall Open
2018
Nov 25
Lightweight
Santeri Liliusdef.Zekhnini Abderrahman2018 AJP Tour Germany National Pro
2018
Oct 20
Middleweight