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Diego Oliveira Batista

“Pato”

Source: bjjheroes.com

From an Amazonas social project to a record fifth light-featherweight World title, Diego “Pato” Oliveira built his career through new rooms and leg attacks.

Biography

Diego Oliveira Batista, better known as “Pato,” is a Brazilian jiu-jitsu black belt from Amazonas whose career has repeatedly been shaped by a change of training room. He began in a social project, entered Cícero Costha's athlete house as a teenager and later chose Art of Jiu-Jitsu for a different technical perspective. By 2026, that path had brought him a record fifth IBJJF black-belt World title at light featherweight. Oliveira was born in Parintins, Amazonas, in 1998 and spent part of his childhood in Manaus after moving there with his father. “Pato” means duck in Portuguese. According to his BJJ Heroes profile, training partners gave him the nickname when he was a young athlete because his feet looked unusually large for his body. A cousin who trained mixed martial arts inspired Oliveira to try jiu-jitsu in 2012. His first classes were with Arley Silva at a social project, and he was soon immersed in jiu-jitsu's competition culture. When the project closed, Oliveira was left without a coach and continued at Nabil JJ under Nabil Abdel Aziz. As a teenager, he used small prizes from local tournaments to help with household expenses. The money was modest, but the competitions also pointed him beyond Amazonas. After Nabil Abdel Aziz awarded him a blue belt, Oliveira began looking for stronger opposition elsewhere. A meeting with Cícero Costha at the Rio Open led to an invitation to Costha's São Paulo athlete program. The arrangement provided housing, food and high-level training. Around 2015–2016, Oliveira and Hygor Brito moved into the Projeto Social Lutando Pelo Bem fighter house, the residential base often known by its initials, PSLPB. The Costha team opened another training route in 2017. Oliveira spent several months at Brea Jiu-Jitsu in California with other Cícero Costha athletes while preparing for the adult purple-belt World Championship. He won that tournament. After a strong run through the colored-belt light-featherweight division, Costha promoted him to black belt in June 2019. His next major move was explained in practical and technical terms. In a March 2023 interview, Oliveira said he already had an athlete visa that allowed him to train in the United States, where he was spending more time than in Brazil while Dream Art lacked an American academy. He arranged a two-month stay at Art of Jiu-Jitsu, or AOJ, and began establishing roots in California. The connection with Guilherme Mendes became decisive: Oliveira pointed to Mendes's detailed coaching and strategic adjustments when describing why he chose AOJ. The new room asked him to change his routine as well as his team name. Oliveira said AOJ's 7 a.m. competition sessions forced him outside his comfort zone. His task, as he described it, was to arrive early, improve each day and absorb the coaches' instruction instead of carrying pressure into competition. Mendes framed the work from the other side: his aim was to broaden Oliveira's technical vision and place him in unfamiliar training situations. AOJ's own instructional, running more than four hours, presents Oliveira's leg attacks as a connected system rather than a single favorite submission. It begins with open-guard drills and guard retention—the work of using the legs to control distance and prevent an opponent from passing—then builds entries from De La Riva guard, reverse De La Riva, K-guard, knee shield and top position. The finishing options include Z locks, heel hooks, kneebars and the technique named the Pato lock. The course also analyzes his matches with Diogo Reis, Dante Leon and Fabricio Andrey. By early 2026, the IBJJF likewise described his game as centered on guard play and technical leg-lock systems. Oliveira won his third black-belt World title in 2024, then claimed his first IBJJF Crown title at featherweight that November. He beat Osvaldo Queixinho 6–4, defeated Shane Jamil Hill-Taylor 18–0 and finished João Mendes in the final with a choke after taking his back. During the 2024–2025 ranking season, Oliveira also completed the IBJJF Grand Slam. At the 2025 Brasileiros, he returned from featherweight to light featherweight after winning the Europeans and Pans at the heavier division. He won four matches in Brazil, submitted three opponents and ended the final with a rear-naked choke. That victory completed the four-event Grand Slam for the season. By January 2026, the IBJJF listed him as the reigning gi Grand Slam champion and a two-time No-Gi World champion representing AOJ. At the 2026 World Championship, Oliveira won the light-featherweight division for his fifth black-belt World title, moving past Robson Moura and Gui Mendes for the division's record. His run included two lapel chokes on the opening day, a calf slicer in the medal rounds and a nine-point victory over Khaled Mohammad in the final. Afterward, Oliveira laid his black belt on the mat to signal that he would no longer compete at the IBJJF World Championship. He ended that season with European, Pan and World titles. His competition continued outside that event. At the 2026 ADCC World Championship, Oliveira won bronze in the under-66-kilogram division. He submitted Jakub Wiklacz, beat Gianni Grippo 6–0 and lost a referee decision to eventual champion Kennedy Maciel in the semifinal before receiving the bronze-medal result against Dominic Mejia by forfeit.

Sources for this profile

  • Portuguese Wikipedia, “Diego Pato” (rendered biography and infobox; accessed 13 September 2026).(opens in a new tab)

    • Diego Oliveira Batista was born on 2 October 1998 in Parintins, Amazonas, and later spent part of his childhood in Manaus after moving there with his father.

      Where in the source: Informações pessoais and Biografia — identity, birth and move to Manaus

      Accessed:

    • The profile identifies Oliveira as Brazilian.

      Where in the source: Informações pessoais — Nacionalidade Brasil

      Accessed:

  • BJJ Heroes, “Diego ‘Pato’ Oliveira” (complete rendered profile; accessed 13 September 2026).(opens in a new tab)

    • Oliveira's nickname, Pato, means duck in Portuguese; the profile says his training partners gave it to him when he was a young athlete because his feet looked unusually large for his body.

      Where in the source: Opening profile — origin of the nickname

      Accessed:

    • Inspired by a cousin who trained MMA, Oliveira began jiu-jitsu in 2012 with Arley Silva at a social project. He was already immersed in jiu-jitsu's competition culture when the project closed and left him without a coach, prompting him to continue at Nabil JJ under Nabil Abdel Aziz.

      Where in the source: Diego Oliveira Biography — beginning with Arley Silva and Nabil JJ

      Accessed:

    • As a teenager, Oliveira used small local-tournament prizes to help with household expenses. After Nabil Abdel Aziz awarded him a blue belt, he pursued stronger competition outside Amazonas; a meeting with Cicero Costha at the Rio Open led to an invitation to Costha's São Paulo athlete program, where housing, food and high-level training were provided. Oliveira and Hygor Brito moved into the PSLPB fighter house around 2015–2016.

      Where in the source: Diego Oliveira Biography — local prizes, Rio Open invitation and PSLPB fighter house

      Accessed:

    • Cicero Costha promoted Oliveira to black belt in June 2019 after Oliveira had built a strong colored-belt record in the light-featherweight division.

      Where in the source: Diego Oliveira Biography — 2019 promotion by Cícero Costha

      Accessed:

  • Brea Jiu-Jitsu, “Whats New At Brea Jiu-Jitsu?”, 1 August 2017.(opens in a new tab)

    • In August 2017, Brea Jiu-Jitsu reported that Oliveira had trained there for several months with other Cicero Costha athletes while preparing for and winning the 2017 adult purple-belt World Championship.

      Where in the source: Whats New At Brea Jiu-Jitsu? — Cicero athletes and Pato's 2017 Worlds preparation

      Accessed:

  • Carlos Arthur Jr., “Pato Explains His Move To AOJ Ahead Of 2023 IBJJF Pans,” FloCollege, 24 March 2023.(opens in a new tab)

    • In a March 2023 interview, Oliveira said he already had an athlete visa to train in the United States, which made training there practical and led him to spend more time in the U.S. than Brazil while Dream Art lacked a U.S. academy. He arranged a two-month stay at AOJ, established roots in California, and described Guilherme Mendes's detailed coaching and strategic adjustments as the connection that led to his move to AOJ.

      Where in the source: Pato Explains His Move To AOJ — first-person account of the California stay and decision

      Accessed:

    • Guilherme Mendes said his goal was to broaden Oliveira's technical vision and create new training situations for him. Oliveira said AOJ's 7 a.m. competition sessions forced him outside his comfort zone and that his responsibility was to train early, improve daily and absorb the coaches' instruction rather than carry pressure into competition.

      Where in the source: Pato Explains His Move To AOJ — Mendes assessment and Oliveira on early training

      Accessed:

  • Danny O'Donnell, “IBJJF Crown 2024 Recap,” IBJJF, 19 November 2024.(opens in a new tab)

    • Oliveira won his first IBJJF Crown title at featherweight in November 2024, following a 6–4 opening win over Osvaldo Queixinho, an 18–0 semifinal over Shane Jamil Hill-Taylor, and a back-take choke against João Mendes in the final. The event followed his third black-belt World title earlier that year.

      Where in the source: Men's Featherweight — Diego Pato Claims His First Crown Title

      Accessed:

  • Danny O'Donnell, “Inside the 2025 Brasileiros,” IBJJF, 6 May 2025.(opens in a new tab)

    • At the 2025 Brasileiros, Oliveira returned from featherweight to light featherweight after winning the Europeans and Pans at featherweight. He won four matches, submitted three opponents, finished the final with a rear-naked choke, and completed the IBJJF Grand Slam for the 2024–2025 ranking season.

      Where in the source: Wardzinski and Pato Join Gabrieli in Completing Grand Slam Season

      Accessed:

  • Art of Jiu Jitsu, “Attacking the Legs by Diego Pato” (course description; accessed 13 September 2026).(opens in a new tab)

    • AOJ's own four-hour-plus instructional shows the breadth of Oliveira's leg-attack system: drills for open guard and retention; entries from De La Riva, reverse De La Riva, K-guard, knee shield and top position; finishes including the Z lock, heel hooks, kneebars and the Pato lock; and analysis of his matches with Diogo Reis, Dante Leon and Fabricio Andrey.

      Where in the source: Attacking the Legs — Sections 01–04

      Accessed:

  • Kaelan Crisosto, “Pato Joins IBJJF Absolute Grand Prix Event,” IBJJF, 8 January 2026.(opens in a new tab)

    • By January 2026, IBJJF described Oliveira as an AOJ representative, the reigning 2025 gi Grand Slam champion and a two-time No-Gi World champion, with a game centered on guard play and technical leg-lock systems.

      Where in the source: Pato Joins IBJJF Absolute Grand Prix Event — athlete overview

      Accessed:

  • Kaelan Crisosto, “2026 World Championship Black Belt Recap,” IBJJF, 4 June 2026.(opens in a new tab)

    • Oliveira won a record fifth IBJJF black-belt World title at light featherweight in 2026, surpassing Robson Moura and Gui Mendes. His run included two lapel chokes on the first day, a calf-slicer in the medal rounds and a nine-point final win over Khaled Mohammad.

      Where in the source: Male Divisions — Light-Featherweight — Diego Pato

      Accessed:

    • After the 2026 World final, Oliveira laid his black belt on the mat to signal retirement from the IBJJF World Championship event. The IBJJF recap says he ended that season with European, Pan and World titles.

      Where in the source: Male Divisions — Light-Featherweight — retirement from the event

      Accessed:

  • R. R. Ellis, “ADCC 2026 Results: Full Brackets, Champions And Medal Winners,” FloGrappling, 13 September 2026.(opens in a new tab)

    • Oliveira earned bronze in the men's minus-66-kilogram division at the 2026 ADCC World Championship. He submitted Jakub Wiklacz at 7:00 in the round of sixteen, beat Gianni Grippo 6–0 in the quarterfinal, lost the semifinal to eventual champion Kennedy Maciel by referee decision, and received the bronze-medal result over Dominic Mejia by forfeit.

      Where in the source: ADCC 2026 -66kg — round of 16 through bronze-medal match

      Accessed:

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