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Two training partners meeting on the mat.Drawn in cream, forest green, and muted terracotta. People and objects are symbolic illustrations.
Portrait unavailable. General BJJ illustration; not a likeness of this person.Illustration: The BJJ Story

Eduardo "Teta" Rios

“Teta”

Source: korumartialarts.no

Eduardo “Teta” Rios is a Brazilian black belt and European champion who leads grappling at KORU Martial Arts in Oslo.

Biography

Eduardo “Teta” Rios is a Brazilian jiu-jitsu black belt, European champion and head grappling coach at KORU Martial Arts in Oslo. His teaching career connects the academies of Rio de Janeiro with Frontline Academy in Norway, where he coached while continuing to compete. In interviews published in 2014 and 2015, Rios recalled growing up in Barra da Tijuca, starting judo at about six or seven and being introduced to jiu-jitsu by his uncle. Summer classes at Gracie Barra and friends who trained made the sport part of his childhood. He met Ricardo Libório at around fourteen or fifteen; watching the competitors at Carlson Gracie’s academy train together strengthened his commitment to jiu-jitsu. Rios credited Libório with awarding all his belts, including black. He followed his teacher to Carlson Gracie’s academy, joined Brazilian Top Team in 2000 and received his black belt in 2001. At Brazilian Top Team he taught jiu-jitsu, while Murilo Bustamante continued to guide his training after Libório left. Norway began as a visit. In his 2015 account, Rios described planning to spend two weeks with a friend there and staying for almost two months. He returned for competitions and seminars, and those visits developed into a partnership with Frontline. By February 2015, he was the Oslo academy’s head coach. Rios won the adult black-belt medium-heavyweight division at the 2006 IBJJF European Championship while representing Brazilian Top Team. In 2012, competing for Frontline, he won the same division at the European No-Gi Championship. That September he also won the under-88 kg division at the ADCC European qualifiers in Ljubljana. His run of European No-Gi titles continued at middleweight in 2013, medium-heavyweight in 2014, and middleweight in 2015 and 2016. In 2013, his Frontline teammate Nic Ruben Nikolaisen finished second in the same division. Rios also took open-class silver at the 2016 event. These were adult black-belt results; his later record includes both adult and master competition. He placed second at adult black-belt middleweight at the 2017 Pan No-Gi Championship and third in that division at the 2018 European No-Gi Championship. In the gi, he took middleweight silver in the master 1 category at the 2018 European Championship, followed by bronze in 2019. Ahead of the 2019 event, a FloGrappling preview reported that he planned to bring forty-five Frontline students while competing himself. His teaching also appears in the accounts of individual students. Rios awarded Nikolaisen his jiu-jitsu black belt in 2009. In a 2017 interview, Tarik Hopstock credited Rios with helping him pursue his goals and allowing him into advanced classes while still a juvenile. Hopstock described an enthusiasm for jiu-jitsu that reached beyond his own lessons and influenced the wider Frontline group. Rios explained his approach to coaching MMA fighters in the 2015 interview: the mechanics of grappling remained useful, but transitions and control had to account for strikes, aggression and different timing. He wanted athletes to try to finish exchanges and use mistakes in training to learn. In the 2014 Jiu Jitsu Style interview, he recalled declining Libório’s invitation to move to the United States and compared visiting other teams with surfing. Travel offered opportunities to improve and build friendships, alongside his responsibilities to his own team. As of September 2026, KORU Martial Arts lists Rios as the head of its grappling program in Oslo, covering both gi and no-gi jiu-jitsu.

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