John Kavanagh

The Irish foundation

John Kavanagh is the head coach of Straight Blast Gym (SBG) Ireland in Dublin and the first Irish BJJ black belt. His coaching career began in the late 1990s when MMA was effectively nonexistent in Ireland — Kavanagh built the Irish MMA training scene from scratch, organizing the first BJJ tournaments in Ireland and importing instructors from the US and Brazil to seed the technical base.

His own competitive background was BJJ and grappling — he was the first Irish competitor at multiple European and world IBJJF tournaments — and he received his BJJ black belt from John Will (Australia's first BJJ black belt) in 2007.

By 2013, his most-successful student, Conor McGregor, had signed with the UFC after dominating the Cage Warriors lightweight and featherweight titles. The McGregor era from 2013–2018 made SBG Ireland the most-watched non-US MMA gym in the world.

The lineage

Kavanagh's coaching lineage runs through:

• John Will (Australia): Kavanagh's BJJ black belt instructor, part of the broader Machado Brothers lineage. Will's coaching emphasized systematic problem-solving over technique memorization — a foundational influence on Kavanagh's pedagogy.
• Matt Thornton (USA): founder of the original Straight Blast Gym in Portland, Oregon, whose "aliveness" training philosophy (resistance-based rolling and sparring as the primary training mechanism) became the SBG global standard. Kavanagh's SBG Ireland is an affiliate of the broader SBG network founded by Thornton.
• Carlos Machado and the broader Machado-Gracie lineage: the BJJ-foundation lineage that traces through Brazil.

The SBG "aliveness" training philosophy — that techniques should be drilled against resistant opponents rather than against compliant ones — is the defining feature of Kavanagh's coaching and what gave McGregor his distinctive fighting style.

The athletes

• Conor McGregor — UFC featherweight + lightweight champion. Two-division simultaneous champion at UFC 205. The most commercially successful UFC fighter in history.
• Gunnar Nelson — UFC welterweight contracted fighter and Icelandic ADCC competitor. Multiple Performance of the Night bonuses through the 2010s.
• Cathal Pendred (formerly) — UFC welterweight contracted fighter; TUF: Smashes winner.
• Owen Roddy — McGregor's striking coach, also a SBG affiliate.
• Sinead Kavanagh, James Gallagher, Peter Queally, Charlie Ward — Bellator and Cage Warriors Irish roster across the 2010s and 2020s.

The roster has been smaller than American gyms but has produced one of the most-marketable UFC stars in history.

The coaching philosophy

Kavanagh's coaching philosophy:

BJJ foundation. He was the first Irish BJJ black belt and built the Irish MMA program with grappling as the technical base. Every SBG Ireland fighter is expected to be grappling-credible regardless of base style.

Long-term athlete relationships. McGregor–Kavanagh has been a 15+ year coaching relationship; the two have publicly stated they consider each other family. The relationship survived McGregor's UFC 196 loss to Diaz, the UFC 229 loss to Khabib, the 2018 bus-attack legal issues, and the various subsequent McGregor controversies.

Game-plan precision. Each fight is prepared with specific tactical adjustments. The UFC 194 13-second KO of Aldo was a multi-camp gameplan focused entirely on the counter-left-hand setup. The UFC 205 title win over Alvarez was a clean technical execution of the prepared gameplan.

Public-persona coaching. Like Eugene Bareman, Kavanagh recognizes that public-facing presentation is part of championship-level development. The Notorious persona, the trash-talk choreography, and the cultural-figure positioning were all coached, not improvised.

Aliveness training. The SBG philosophy of resistance-based drilling rather than compliant technique practice. This is the methodological foundation that produced McGregor's distinctive movement and rhythm.

The McGregor partnership

The McGregor–Kavanagh partnership is the most-public coach-fighter relationship in MMA history. Kavanagh's book Win or Learn (2016) is the canonical documentation of the McGregor pre-2018 championship preparation.

Key moments:

• UFC 194 (December 2015): the 13-second KO of José Aldo. Kavanagh's pre-fight preparation focused entirely on the counter-left-hand setup that ended the bout. The fight ended the way the coaching staff had predicted it would.
• UFC 196 (March 2016): the loss to Nate Diaz on 11 days' notice as a short-notice replacement at 170. Kavanagh's post-fight analysis publicly acknowledged the preparation gap.
• UFC 202 (August 2016): the rematch win over Diaz via majority decision. Kavanagh's gameplan for the rematch — leg kicks, distance, championship-rounds capacity — won the bout.
• UFC 205 (November 2016): the second-division title win over Eddie Alvarez. The technically-clean lightweight title preparation.
• UFC 229 (October 2018): the loss to Khabib Nurmagomedov. The aftermath produced one of the most-public coach-fighter strategic reassessments in MMA history, with Kavanagh openly stating that the McGregor wrestling defense had not been adequately prepared.

Signature corner moments

• UFC 194, McGregor vs Aldo, December 2015: Kavanagh's pre-fight instruction was "the counter is there on his first overhand — don't wait." McGregor landed the counter at 13 seconds.
• UFC 202, McGregor vs Diaz 2, August 2016: Kavanagh's between-rounds instruction in round 4 ("conserve energy, the kicks are landing") preserved the lead for the round-5 decision win.
• UFC 205, McGregor vs Alvarez, November 2016: Kavanagh's pre-fight instruction was "stay outside the pocket until he steps in." McGregor dropped Alvarez three times in round 1.

The post-2018 era

The McGregor injury (UFC 264, July 2021) and subsequent inactivity reduced the SBG Ireland championship-level visibility. Kavanagh has continued coaching at SBG Ireland and produces consistent UFC contracted fighters, though without a current UFC champion.

The 2024 McGregor BKFC promotional involvement (rather than MMA return) shifted Kavanagh's coaching focus toward developmental work with the broader Irish roster.

The legacy

John Kavanagh built the modern Irish MMA scene from scratch. The McGregor commercial impact alone (over $2 billion in UFC pay-per-view revenue across his career) makes Kavanagh's coaching results among the most commercially significant in MMA history.

The BJJ-foundation Irish-MMA template that Kavanagh established has influenced subsequent European MMA gyms attempting to build similar programs in the UK, the Netherlands, Poland, and Germany. The SBG affiliate network has continued to grow internationally, with SBG branches operating in 15+ countries by 2026.