Kodiak Fields started jiu-jitsu in 1996 at Ohio State, took a detour through broke college student life, came back to it in 2008 as a national champion powerlifter and taekwondo competitor, went 3-0 in MMA finishing every fight by submission, transitioned to full-time jiu-jitsu competition when his family intervened after a concussion, and has been chasing the highest levels of the sport ever since. He is a two-time world champion in both gi and no-gi, a regular on the competition circuit, and the instructor behind the BJJ Fanatics instructional Death From Above. He trains at Fight Sports Miami and makes regular appearances at Vagner Rocha Martial Arts for open mats and sessions. He is approaching 50. His wife Kelly has attended every competition except one, assists in pre-match recon, calls adjustments during matches, and has been approached by his opponents afterwards to coach them instead. He uses sauna, steam, and cold plunge regularly as part of his recovery protocols. He asked at the end of our conversation how he could support this show — and that generosity tells you everything you need to know about the man.
I have been under Kodiak Fields. It is not a happy place. When you train at Vagner Rocha Martial Arts, you share the mat with people who show up at a level that is simply different from what most gyms produce, and Kodiak is among the most dangerous of that group. Two-time world champion, approaching fifty, still chasing the bottom game he spent his career dominating from the top — the man embodies exactly what this show exists to document and amplify: that midlife is not the end of competitive, serious, evolving jiu-jitsu. It is a different chapter of it.
What I did not anticipate was how much of this conversation would be about business, accountability, and the principles that connect elite performance on the mat to elite performance in every other room of life. Extreme ownership. Data-driven self-diagnosis. The commitment you make to yourself being the most foundational one you keep. These are not motivational slogans. They are operating principles that Kodiak built through two decades in business and then recognized, in reverse, as the same principles jiu-jitsu had been teaching him the whole time.
From Ohio State to the World Podium: How a Broke College Student Became a Two-Time Champion
The first jiu-jitsu class was 1996 at Ohio State. A blue belt teaching a sea of white belts at a tennis club off Route 161. Kodiak loved every concept of it — already a fighter by nature, the controlled environment and the technique fascination hit immediately. He trained for a month before the $50 dues arrived and a broke college student made the only decision available. He walked out.
What followed was grappling on Applebee's carpet — literally moving the tables out of the bar at closing, having a couple beers, and wrestling on concrete-backed carpet a few nights a week with his buddy Robin Geisler. For years. Robin would go on to become a black belt. Kodiak would circle back in 2008 as a national champion powerlifter and state taekwondo champion who was getting warned for excessive force at every tournament and dreaming of a cage. His wife pushed him to try jiu-jitsu. He walked into Robin's gym — now taught by that same friend — and got beaten comprehensively by a 135-pound purple belt and a blue belt while sitting at 260 pounds of powerlifter.
"It doesn't matter how much bigger and stronger and faster you are. They've got jiu-jitsu and you don't. Okay, cool — let's get me signed up."
— Kodiak Fields · @kodiakfields · kodiakfields.comHe paid a year in advance on the spot for access to the advanced class. He went 3-0 in MMA finishing every fight by submission. He got severely concussed in his third fight, his family staged an intervention, and he made the pivot to full-time jiu-jitsu competition that produced two world titles in both gi and no-gi and the catalog of metals currently hanging behind him on the wall. The smaller stuff did not make the wall. There is a lot of smaller stuff.
Death From Above, Masters Four, and the Deliberate Flip to Bottom Game
Kodiak's natural game is top — he had a couple years of wrestling coming in and fell into the top position naturally. The Death From Above instructional on BJJ Fanatics is the product of years of development in that game. But approaching fifty, he has made a deliberate choice to spend his development time on what he is worst at: pulling guard, leg entries, bottom-up jiu-jitsu. Not because the top game is not working. Because it no longer interests him as much, and because the lower-impact nature of the bottom game aligns with the longevity calculation he is actively making.
He is currently the only registered Masters Four competitor for the ADCC Miami Open. He noted this with the equanimity of someone who has made peace with the reality that his peer group is small at this level, in this age bracket, in this rule set. His potential bracket mate asked him if they should both just do an open mat instead of paying entry fees to roll each other in public. Kodiak agreed. The logic is impeccable. The ADCC rule set — which allows leg entanglements that the older competition demographic typically avoids — is the reason he has stepped away from IBJJF entirely. He has won a lot in IBJJF. That rule set no longer interests him. ADCC does.
"The only activity I've ever experienced where I can completely shut off my thinking from everything except what's happening right in front of me. You are truly present. Or you're getting choked."
— Kodiak Fields · @kodiakfields · kodiakfields.comThe longevity angle in competition planning is deliberate. He is nursing a couple of injuries and actively chose not to enter the UFC BJJ event — in part because the same-day weigh-in format creates a weight cut dynamic that does not align with where his health priorities are, in part because the three-hundred-pound opponents in an open division do not represent the challenge he is interested in taking on right now. Making it a priority to compete smart, not just to compete, is itself a longevity practice. Knowing which tournaments to enter, which to skip, and which to reserve bandwidth for is the same discernment that applies to business: not every opportunity is the right fit for you right now.
The Stack That Keeps a Two-Time World Champion on the Mat at 50
Kodiak was direct about his recovery protocols, and I want to give them the same honest treatment I give everything on this show. He uses peptides and a low-dose TRT protocol once a week — tools he has made informed decisions about with the goal of sustaining the kind of training load and competition level that five or six days a week at elite gyms requires when you are approaching fifty. He does not offer these as recommendations without context. He offers them as honest answers to the honest question of what it actually takes.
Off air, he also mentioned something worth including here: sauna, steam, and cold plunge are regular components of his recovery week. The thermal contrast protocol — heat to drive blood flow and flush metabolic waste from training-stressed tissue, cold to reduce inflammation and reset the nervous system — is one of the most accessible and well-documented recovery tools available. For someone training five or six days at Fight Sports Miami and making regular appearances at Vagner Rocha Martial Arts, the cumulative load is substantial. These are not optional luxuries. They are the maintenance schedule that keeps the machine running.
- Peptides. Used as part of the recovery and performance optimization protocol, informed by the specific demands of high-frequency training at elite level approaching 50.
- Low-dose TRT, once weekly. A deliberate, informed choice made in the context of sustaining training volume, competition preparation, and the hormonal realities of performance in the late 40s. Not a shortcut — a tool applied with intention and awareness.
- Sauna and steam. Regular thermal exposure for deep tissue circulation, metabolic waste clearance, and the cardiovascular conditioning benefit that supports the aerobic base training demands. Part of the weekly non-negotiable rotation.
- Cold plunge. The contrast protocol — following heat with cold — drives the parasympathetic recovery response and reduces the systemic inflammation that five or six days of hard training accumulates. Kodiak uses this regularly as part of the same thermal recovery session.
- Sleep: six hours minimum, eight as the target. He knows what he did not know earlier in life — that sleep is the recovery multiplier that everything else builds on. Unplugging from the phone, connecting with his wife about the day, quieting the mind before bed. The simple version of sleep hygiene applied consistently.
- Nutrition as fuel quality. The Formula One analogy: cheap fuel in a high-performance machine produces a noticeable result in the next training session. When he eats poorly, he feels it in the training that follows. When the nutrition is dialed, the machine performs differently. He treats the correlation as data, not coincidence.
- Energy environment management. Non-negotiable: no negative people, no low-moral-standard environments, no situations that drain rather than build. The people around him share his mentality, his goals, his standards. He describes the result not as exclusion but as elevation — when everyone in the circle is operating at the same frequency, the results compound for all of them.
Breathe or Tap — The Recovery That Starts on the Mat
The thermal recovery work Kodiak does off the mat — sauna, steam, cold plunge — begins a parasympathetic shift that the breath can amplify and extend. Breathe or Tap — my breathwork deep dive for jiu-jitsu practitioners and midlife recovery — is the tool that bridges on-mat composure with off-mat recovery: how to use breath to down-regulate after training, improve sleep architecture, and build the CO₂ tolerance that keeps you technical in the moments when the body wants to gas out and force. Find it at ThatJiujiteiro.com or on YouTube at @thatjiujiteiro.
Jiu-Jitsu Taught Him Extreme Ownership Before He Had a Name for It
Jocko Willink put a name to something Kodiak was already practicing before he read the book. The principles of extreme ownership — look inward first when something fails, self-diagnose before pointing fingers, understand what you could have done differently before asking what went wrong around you — these came from the mat before they formalized in business. Because on the mat, there is no finger pointing. What happened, happened. The truth of what happened on the mat is always available to someone willing to look at it honestly.
He applies this in business through data: if a rep comes to him struggling and cannot account for whether they showed up to the power hour, logged their client details in the CRM, or wrote down the objections they encountered — there is no coaching to be done because there is no data to coach from. You have to show up. You have to use the system correctly. You have to create the record of what happened so that you can diagnose it honestly. This is exactly how film review works in jiu-jitsu. This is exactly how Kodiak is now setting his tripod back up in training — because he has realized he has been training at a new level without the honest feedback that footage provides, and the gaps are starting to show.
When a roll goes badly, when a position fails, when a technique does not land — the first question is what did I do or fail to do that contributed to this outcome? Not who was I against, not what did they do, not what was unfair. What could I have done differently? This posture is uncomfortable and productive in equal measure. It is also the only posture that produces sustainable improvement, because it places the locus of control in the one place you can actually access: yourself.
You cannot diagnose a failure you have not documented. In jiu-jitsu, that means filming your rolls, doing the positional sparring that creates the data, showing up to the technical sessions rather than only to open mat. In business, that means logging the client interactions, tracking the objections, building the CRM record that makes honest coaching possible. In both contexts, the person who only shows up for the fun parts and skips the data-generating parts has no signal to work from when performance drops.
Kodiak's approach during drilling is vocal — naming what is working, naming what is not, slowly increasing resistance to test the technique rather than rehearsing it in a vacuum. The training partner who tells you what actually happened when you tried to pass their guard is more valuable than a thousand reps against no resistance. The truth of the mat — delivered verbally, delivered through the outcome of the roll, delivered through footage — is the diagnostic tool that all improvement is built from. Training partners who tell you the comfortable version are not serving you. The ones who tell you the accurate version are.
Kodiak spent two and a half years in a supply chain role deploying corrective action before accepting that the fundamental misalignment was not something his solutionist skills could fix. The lesson is one that applies to training too: not every school is the right fit, not every team is the right environment, not every competition is the right tournament for where you are right now. Recognizing that you are not the right person for this specific problem — and making the decision to allocate your resources differently — is not failure. It is the most sophisticated form of ownership available.
Kelly Fields: The Black Belt Mind in the Corner
Kodiak's wife Kelly has attended every competition except one, due to a family conflict that created the only exception in years of showing up. She assists in pre-match recon. She diagnoses opponents before the match begins. During the match, she calls adjustments. His opponents have been so impressed by her corner work that they have asked her to come coach them during their next match.
He describes her as his yin and yang — where his weaknesses are her strengths and vice versa. He is the visionary and the salesperson. She is the execution and the operations. She gets the big ideas to the bank. She also manages his blind spots — particularly the ego involvement that comes when Kodiak sees an opportunity and gets passionate about it. Her job, as he describes it, is to shine the light on what he cannot see, which makes it easier for him to accept the truth and move forward rather than doubling down on a path that does not serve him.
There is a direct parallel to the training partner relationship he values on the mat. The person in your corner — literally or figuratively — who tells you what is actually happening rather than what you want to hear, who can see the positions developing before you can because they are watching from the outside, who is invested enough in your outcome to say the uncomfortable thing — that person is the highest-value resource available to any competitor. Kodiak has that in his corner at every match and in his life every day. It is, as he says, an unfair advantage.
The Commitment You Make to Yourself Is the Most Important One You Keep
The advice Kodiak gives to midlife grapplers — whether brand-new blue belts or seasoned practitioners hitting plateaus — distills to something deceptively simple: take care of yourself, tap early and tap often, and keep the commitment you make to yourself with the same seriousness you keep the ones you make to everyone else.
That last point is the one that lands differently the longer you sit with it. Most of the people in this community are selfless by nature — they show up for their clients, their families, their teammates, their obligations. They honor commitments to everyone. But when it comes to the training session they promised themselves, the recovery protocol they know they need, the sleep they keep deprioritizing in favor of one more hour of screen time — the self-commitment is the first one to go. Kodiak points at this directly: if you cannot be true to yourself, how can you be true to your loved ones, your business associates, your clients? The self-commitment is not separate from the others. It is the foundation they rest on.
"The true weight of a commitment is in honoring it when it's no longer convenient or pleasurable. If we tell ourselves we're going to train five days a week, we need to do that. And if we're falling off, we need to hold ourselves accountable and step up."
— Kodiak Fields · @kodiakfields · kodiakfields.comThe practical application he shares is one I find immediately useful: when he does not want to go to training, he reminds himself of what happened the last time he did not want to go and went anyway. He felt amazing. The body was spent. The mind was clear. The problem-solving stimulation of the round had cleared whatever was backing up in his head from the day. If he skips, he feels guilty. If he trains the next day to compensate, he trains two sessions. His inner critic knows the pattern. The only winning move is to go.
How to Support the Hard to Kill in Midlife Tribe
Before we wrapped up, Kodiak asked how he could support this show. I was genuinely grateful for that question — it is the kind of generosity that tells you exactly who someone is. So for anyone out there wondering the same thing: share the posts and episodes with your friends and training partners. Let us know your thoughts in the comments or DMs. Like, subscribe, and follow across all platforms. And take advantage of our free guides — then pass them along to anyone who might find them useful — at HardToKillInMidlife.com. That is how this community grows. That is how more midlife grapplers find the information they needed years ago and nobody gave them. Thank you for being here, and thank you to Kodiak for asking.
Tenacity
He thought for a moment. Then:
Tenacity.
One of his favorite words. Because it embodies every vertical of his life. Not accepting defeat. Being tenacious in all things. Not just in competition — in business, in relationships, in recovery, in the commitment to be on the mat on the days when showing up is the last thing the body wants to do.
There is a distinction worth drawing here between tenacity and stubbornness. Stubbornness doubles down on the wrong path. Tenacity stays the course on the right one while remaining open to adjusting the method. Kodiak's willingness to exit a two-and-a-half-year business situation that was not producing the right result, to flip his game from top to bottom approaching 50, to recognize when the solution is not his to deliver — these are acts of tenacity, not stubbornness. The goal does not waver. The ego that wants to be right about the path learns to let go when the data says otherwise.
Tenacity is also what it looks like to train five or six days a week at Fight Sports Miami and Vagner Rocha Martial Arts, approaching fifty, as a two-time world champion who is not coasting on what he has already built. Kodiak is building something new — the bottom game, the leg entanglement system, the guard-pulling practice I did not give him the opportunity to develop the last time we rolled. He will get that opportunity. He is not going anywhere. That is what tenacity looks like from the inside.
Fuel for the Level Kodiak Is Playing At
Five or six days a week at two of South Florida's hardest training environments, approaching 50, chasing a world title in the next chapter of a competition career — the fuel quality matters at that level. Kodiak knows the Formula One analogy because he has lived the difference between clean and sloppy nutrition in subsequent training sessions. Lineage Provisions holds to the same standard as everything else on this show: real ingredients, no shortcuts, designed for people who are serious about what goes in because they are serious about what comes out. Use code JOSHBUTTON for 15% off, or grab the link in bio.
Death From Above — BJJ Fanatics · kodiakfields.com · @kodiakfields
Kodiak's Death From Above instructional on BJJ Fanatics is the product of years of elite top game development. If you have been under him, you already know what it teaches. If you have not been under him, the instructional is the closest available substitute and it will change how you think about pressure passing and top control. His Instagram documents the training, the philosophy, and the ongoing evolution of a competitor who has not decided to coast. Follow him. The content matters.
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