About
Grey Wolf Brazilian Jiu-Jitsu offers Brazilian Jiu-Jitsu, a striking program, and yoga. The program includes martial arts training led by instructors at a martial arts academy. It also offers a free Women's BJJ class starting this Friday at 6 PM.
• Ages: 5–18 years old
• Schedule: Free Women's BJJ class starting Friday at 6 PM
Grey Wolf Brazilian Jiu-Jitsu is headed by Head Instructor and Owner Michael Yi, who is an IBJJF 2nd Degree Black Belt in Brazilian Jiu-Jitsu under Professor Renato “Babalu” Sobral. The academy is part of the Babalu’s Iron Gym family, which is headed by MMA UFC fighter and Strikeforce Champion Renato “Babalu” Sobral. The school’s stated belief is that Brazilian Jiu-Jitsu is for everyone, regardless of age, fitness, or experience, and that the academy is family oriented and considers everyone there part of its family. Grey Wolf BJJ, LLC holds copyright from 2017–2026, and Michael Yi opened a martial arts school in 2018 in Eugene, Oregon.
The program offers various programs to accommodate men, women, and children ages 5 and up, and a complimentary private orientation session is available. The Brazilian Jiu-Jitsu lineage at this academy leads up to Grand Master Carlos Gracie Sr., and Master Carlos Gracie Jr. is identified as the founder of IBJJF and Gracie Barra. Listed competition results for Michael Yi include Vulkan California Open Gi Silver (2014), Vulkan California Open No-Gi Silver (2014), Dream Jiu-Jitsu No-Gi Silver (2014), USBJJF North American Gi Champion (2013), and USBJJF North American Gi Bronze (Absolute) (2013). The program notes a family atmosphere and community connection in the Bethel area, including the Eugene Rec Center at “The Barn” on Royal Ave.
Last updated April 14, 2026.
• Ages: 5–18 years old
• Schedule: Free Women's BJJ class starting Friday at 6 PM
Grey Wolf Brazilian Jiu-Jitsu is headed by Head Instructor and Owner Michael Yi, who is an IBJJF 2nd Degree Black Belt in Brazilian Jiu-Jitsu under Professor Renato “Babalu” Sobral. The academy is part of the Babalu’s Iron Gym family, which is headed by MMA UFC fighter and Strikeforce Champion Renato “Babalu” Sobral. The school’s stated belief is that Brazilian Jiu-Jitsu is for everyone, regardless of age, fitness, or experience, and that the academy is family oriented and considers everyone there part of its family. Grey Wolf BJJ, LLC holds copyright from 2017–2026, and Michael Yi opened a martial arts school in 2018 in Eugene, Oregon.
The program offers various programs to accommodate men, women, and children ages 5 and up, and a complimentary private orientation session is available. The Brazilian Jiu-Jitsu lineage at this academy leads up to Grand Master Carlos Gracie Sr., and Master Carlos Gracie Jr. is identified as the founder of IBJJF and Gracie Barra. Listed competition results for Michael Yi include Vulkan California Open Gi Silver (2014), Vulkan California Open No-Gi Silver (2014), Dream Jiu-Jitsu No-Gi Silver (2014), USBJJF North American Gi Champion (2013), and USBJJF North American Gi Bronze (Absolute) (2013). The program notes a family atmosphere and community connection in the Bethel area, including the Eugene Rec Center at “The Barn” on Royal Ave.
Last updated April 14, 2026.
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