MERCED, CA — Iron Anchor Jiu-Jitsu owner Keegan Mulroney, a 43-year-old brown belt who first encountered the ‘Kozen Guard’ in August while watching a highlight reel of a Georgian lightweight on his phone during a tire rotation at a Firestone on Yosemite Parkway, taught a sold-out $400 seminar on the position this Sunday to 37 paying adults, sources confirmed.
Mulroney, who has attempted the Kozen Guard in a live roll exactly zero times, spent the three-hour session explaining ‘the conceptual framework,’ ‘the reference points,’ and ‘what we’re looking for on the reaction.’ At no point during the seminar, which grossed $14,800 and included a catered tray of grocery-store wraps, did Mulroney enter the position against a resisting opponent.
‘This is the beauty of it,’ Mulroney told the room, standing in a patch-free gi he bought specifically for seminar photos, holding a cordless microphone he rented from the Merced Inn and Conference Center for $45. ‘Once you understand the concept, you don’t have to do it. The move happens through you.’
Available video of Mulroney training — 247 Instagram posts, 12 podcast guest appearances, three academy promotional reels, and one local news segment from 2019 in which he demonstrated a shrimp escape in the wrong direction — contains zero instances of him entering the Kozen Guard against any opponent capable of resisting. The only footage of Mulroney in the position shows him guiding a 16-year-old blue belt into the configuration, manually placing the student’s leg where it needs to go, and pausing the sequence before any follow-up could be attempted.
‘I had a few questions during the Q&A,’ said Brandon Pulaski, 34, a structural engineer from Modesto who drove 42 minutes to attend, purchased a $60 T-shirt reading IRON ANCHOR — KOZEN GUARD CERTIFIED, and filled 11 notebook pages with bullet points. ‘I asked if he could show the finish against a fully resisting partner. He said that specific application would be in the Advanced Kozen Guard seminar. That’s in October. Four-fifty early-bird. I already signed up.’
The Advanced Kozen Guard seminar, which is currently accepting deposits, is listed on Iron Anchor’s website with a description stating that attendees will receive ‘the next layer of the system’ and ‘the high-percentage entries we couldn’t get to in Seminar One.’ A footnote, added Tuesday morning, clarifies that live demonstrations will be ‘format-dependent.’
Mulroney has never competed in an IBJJF event. He has not rolled at open mat at any outside academy in 11 years, a period he attributes to ‘being protective of my time.’ His Instagram bio, as of press time, describes him as ‘a lifelong student of the game,’ ‘concept-first practitioner,’ and ‘proud distributor of Acai Express meal-prep boxes.’
Attendees confirmed the seminar began with Mulroney showing the Georgian lightweight’s highlight reel three times on a projector, pausing it at various frames to explain what was happening. When asked by 29-year-old accountant Gavin Heifner whether Mulroney had ever contacted the Georgian lightweight — whose name Mulroney pronounced four different ways across the session — about the specifics of the entry, Mulroney said he had not, but that he had ‘studied the film extensively.’ When Heifner followed up and asked how many times, Mulroney said, ‘Enough.’
At the 94-minute mark, Mulroney brought out his training partner of 14 years, a 46-year-old purple belt named Vance Hoeppner who works at the Stanislaus County Recorder’s Office and has agreed to lose to Mulroney in drilling exchanges since 2012. Vance knelt. Mulroney passed Vance’s guard. Mulroney entered the Kozen Guard. Vance remained kneeling. Mulroney executed the sweep. Vance fell exactly the way he was supposed to fall. The room clapped.
‘That’s the feeling,’ Mulroney said.
Contacted after the seminar, three brown belts from surrounding academies — including one who has twice hit the Kozen Guard in IBJJF Masters competition — confirmed they had not been invited. Nathan Coronel, 31, owner of rival Central Valley Grappling, said he had been told by a mutual student that Mulroney’s version of the position was ‘structurally incorrect,’ but that he would ‘absolutely not’ be attending Mulroney’s seminar to verify, because ‘it’s $400 and I’d rather eat drywall.’
Mulroney posted that evening at 9:47 p.m. Pacific. The caption, which has since been edited four times, currently reads: ‘Humbled to share the work today. Blessed to have a community that showed up. Concept over application. The game teaches the game.’
The photo, taken by Mulroney’s 19-year-old son Carter using portrait mode, shows Mulroney mid-sentence, microphone angled toward his mouth, one hand open in a gesture of instruction. Behind him, out of focus, sits a room of paying adults, their notebooks full of annotations for a move he cannot presently execute, their expressions a mixture of exhaustion and conviction, their checks already cleared.
At press time, a second photo had gone up. It showed Mulroney alone in the empty seminar room after everyone left, holding a bank deposit envelope, smiling.