RegisterLog in

Isaac 🇺🇸

Chad Boyer
Black belt Verified by the community5,755 / 1,000 points
Next Level Jiu-Jitsu and BoxingOrlando FL, United States of America9 years on the mats
924 profile views · Last seen 5 minute(s) ago

Verify this profile

About

  • Training since first belt9 year(s) and 8 month(s)
Bio
I started my jiu-jitsu journey in 2017 at a Gracie University school with a focus on self-defense. However, my interest quickly shifted toward the sport side, leading me to a Clark Gracie affiliate where Budo Jake became my primary coach. During my time in Irvine, CA, I also cross-trained at a 10th Planet school with Joe Murphey. When I moved back home to the St. Louis area, I joined the local Gracie Barra and began training under David Derstine. I have been with him ever since, consider him my primary coach at Next Level. Along the way, whenever I visit family in China, I make sure to train with my friend Jerry Sonenarong, who was kind enough to co-promote me to black belt. I am currently living in Orlando, and training with Jayson Patino & Ricardo Liborio.

Gi or no-gi

Gi and no-gi equallynow
50% Gi50% No-gi
  • White50% gi
  • Blue30% gi
  • Purple30% gi
  • Brown40% gi
  • Black50% gi

Achievements

9 of 20 unlocked
Profile manually reviewed & certificate issued
Moderators Badge of Excellence
Current rank verified by promoting instructor
Name verified by credit card
Coach with confirmed students
Verifications received54
102550
Years trained9 / 10
5101520
Gold medals0 / 5
51025
Competition matches0 / 10
1050100
Forum posts261 / 500
5001,000

Students

Scott McKinney
Scott
Michael Rey
Michael

Wall

Desmund
Desmund
Thanks for the heads up. I just noticed it. I updated my profile.
Antonios
Antonios
Thanks for the verification!

Gallery

Promotion history

  1. Black belt Current belt

    February 21, 2026Gracie Barra, St. Louis, MO

    8 months, 25 days
    Promoted by
    David DerstineCONFIRMED
    Together with
    Wu Tang
    Jerry SonenarongCONFIRMED
    The promotion took place at a Gracie Barra academy that David co-owned. However, because he was in the process of transitioning to open his own gym, the certificate bears the name of his new school, Next Level. I was happy to be co-promoted by my friend Jerry Sonenarong. Check my profile description for more info on my journey.
  2. Brown belt

    August 12, 2023Gracie Barra, St. Louis, MO

    2 years, 6 months, 9 days
    Promoted by
    David DerstineCONFIRMED
  3. Purple belt

    June 19, 2021Gracie Barra, St. Louis, MO

    2 years, 1 month, 24 days
    Promoted by
    David DerstineCONFIRMED
    David Derstine was my primary coach from late blue belt till black belt and co-owner of the gym.
  4. Blue belt

    May 15, 2019Gracie Barra, St. Louis, MO

    2 years, 1 month, 4 days
    Promoted by
    ?
    Jake MartinPENDING
    Moved to St. Louis and started training at Gracie Barra West County which was owned by Jake Martin at that time.
  5. White belt

    March 1, 2017Irvine, CA

    2 years, 2 months, 14 days
    Started training at a Gracie University CTC in Huntington Beach, and then switched to sport jiu jitsu at a Clark Gracie affiliate with Budo Jake and Cedric Chamouillé.

Votes received for current rank

William Murphy
William Murphy
Black belt 5th degree
+225 pts
"Confirmed and well known black belts have stated they know him, and have vouched for him."
Verified1 month(s) ago
R. David Gonzalez
R. David Gonzalez
Black belt 4th degree
+200 pts
"Congrats!"
Verified1 month(s) ago
Mark Gilston
Mark Gilston
Black belt 3rd degree
+175 pts
"Good photo evidence"
Verified1 month(s) ago
Carl Fisher
Carl Fisher
Black belt 3rd degree
+175 pts
"Legit credential 🤙"
Verified1 month(s) ago
Johan
Johan
Black belt 3rd degree
+175 pts
"Feb 2026 BB confirmed by 3:rd degree BB senior co-promoter Jerry Sonenarong (who is also verified by me). Promotion history no longer just says "approval from", so I can confidently change my vote to an up vote."
Verified1 month(s) ago
Isaac
Well that's a pleasant surprise. Thanks Johan.
1 month(s) ago
Scott Chiriboga
Scott Chiriboga
Black belt 3rd degree
+175 pts
"Solid documentation. Congrats on the promotion"
Verified1 month(s) ago
Desmund
Desmund
Black belt 3rd degree
+175 pts
"Great profile!"
Verified1 month(s) ago
Isaac
Thank you!
1 month(s) ago
Itay Leibovich
Itay Leibovich
Black belt 3rd degree
+175 pts
"Verified"
Verified1 month(s) ago
Eric Van Vaerenbergh
Eric Van Vaerenbergh
Black belt 3rd degree
+175 pts
"No doubts about this BJJ black belt!"
Verified1 month(s) ago
Butch
Butch
Black belt 3rd degree
+175 pts
"Solid profile with good documentation. Verified "
Verified1 month(s) ago
Profiles Isaac has voted for

Instructional videos 4

Open in the library
Changes saved
Success
An error occured
Required fields missing
This person is already on Beltchecker.