Our Instructors
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Professor Zak Lessman
Zak began his journey in Jiu Jitsu in 2008. He received his black belt from Professor Ryan Walden and Professor Rafael Lovato Jr. in 2022. Some of his achievements include:
IBJJF Denver Open Gold x2
IBJJF Oklahoma City Open Gold
IBJJF World Master Bronze
IBJJF Pan Bronze
Fight to Win TOC Gold
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Professor Eric Perlman
After achieving #1 rank in both Gi and No Gi in the IBJJF for all colored belts, Eric was awarded his black belt by Professor Rafael Lovato Jr. in 2023. His achievements include:
IBJJF International Open Gold x30
IBJJF World Master Gold x5
IBJJF Pan / No Gi Gold x7
IBJJF World No Gi Gold
Fight to Win TOC Double Gold
NAGA Double Gold
Grappling Industries Double Gold
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Coach Glenn Oritz
Glenn has been competing at the world level for over 5 years, and was awarded his brown belt from Professor Zak Lessman in 2022. His achievements include:
IBJJF Pan Gold x2
IBJJF World Master Silver
Fight to Win TOC Gold
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Coach Derek Linares
A certified yoga instructor and by far the best looking member of the team, Derek has been developing a unique system of Yoga for Jiu Jitsu while winning and coaching at the highest level. His accolades include:
IBJJF Oklahoma Open Double Gold
IBJJF World Master Bronze
IBJJF Pan Bronze
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Coach Gabe Retuta
Gabe has been training and competing with The Dumpster team since 2020. He received his brown belt from Professor Zak in 2022, and together they established Capybara Jiu Jitsu in 2023. In addition to coaching at the world level, he has achieved:
IBJJF Denver Open Silver
FUJI BJJ Silver
NAGA Double SiIver
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Coach Ty Wallace
Ty has been training with Professor Zak since 2019. He helped to start The Dumpster team in 2020, and has been competing and winning at the highest level since. In 2023 he was awarded his purple belt and has already begun to collect medals in the regional and international scene. His accolades include the following:
Fight to Win TOC Gold
Grappling Industries Double Gold
IBJJF Oklahoma Open Silver
IBJJF Orlando Open Absolute Silver
IBJJF Miami Open Bronze
FUJI BJJ Gold
Fight to Win Pro Winner
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Coach Viktor Falkner
A former NCAA division 1 wrestler, Viktor has elevated the team’s wrestling ability and overall competition intensity. He helped to establish The Dumpster team and facility, and by 2020 was already creating a unique wrestling curriculum for Jiu Jitsu. In 2023 Viktor was awarded his purple belt by Professor Zak. In addition to high level coaching, Viktor has collected such accolades as:
Fight to Win TOC Double Gold
Grappling Industries Double Gold
IBJJF Oklahoma Open Silver
FUJI BJJ Gold
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Coach Daisy Wanless
Daisy has been training and competing since 2018. She helped to establish The Dumpster in 2020 and has been winning at the international level for over 5 years. Some of her achievements include:
IBJJF World Novice Gold
IBJJF Orlando Open Double Gold
IBJJF World No Gi Silver
IBJJF Miami Open Gold
Fight to Win TOC Double Gold
Grappling Industries Gold