Jack Hermansson Record: 24-10-0

Establishing himself in the UFC

Hermansson opened his UFC tenure in September 2016 with a unanimous decision over Scott Askham, then ran into a submission loss to Cezar Ferreira that November. He steadied with first-round TKOs of Alex Nicholson in 2017, but a quick knockout loss to the powerful Thiago Santos showed the work that remained. The breakthrough came in 2018: a third-round TKO of veteran Thales Leites at UFC 224, followed by a slick first-round guillotine of Gerald Meerschaert to close the year.

Cracking the top of the division

2019 was Hermansson's career-best stretch. He submitted former WSOF champion David Branch with a first-round guillotine in March, then headlined his first card with a five-round unanimous-decision win over former title challenger Ronaldo Souza – the marquee result that established him as a genuine middleweight contender. A TKO loss to Jared Cannonier later that year halted the climb, but Hermansson bounced back in July 2020 with one of his signature finishes: a first-round heel-hook submission of former title challenger Kelvin Gastelum.

A durable contender

The years that followed cemented Hermansson as one of the division's toughest outs. After a five-round decision loss to Marvin Vettori, he decisioned rising prospect Edmen Shahbazyan in 2021. He also took a special-rules wrestling match against Khamzat Chimaev in late 2021, falling on points. Back in the Octagon, a narrow split-decision loss to future champion Sean Strickland in 2022 was followed by a unanimous-decision win over Chris Curtis, then a TKO loss to Roman Dolidze. He answered with a five-round decision over Joe Pyfer in 2024 before dropping his most recent bouts – first-round knockout losses to Gregory Rodrigues and Myktybek Orolbai.

Fighting style

Hermansson is one of the more dangerous finishers the middleweight division has seen, pairing a wrestling base with a BJJ black belt and genuine knockout power – 11 of his 24 wins have come by knockout and six by submission, a finish rate north of 70%. He attacks aggressively in every phase, equally willing to crack opponents standing or hunt chokes and leg locks on the mat, as his heel-hook of Gastelum and guillotines of Branch and Meerschaert demonstrate. The flip side is durability against the division's biggest punchers: five of his losses have come by knockout, and his all-action style can leave openings, but few middleweights have tested as deep a cross-section of the elite.

Career highlights

• Top-tier wins over former title challengers — Hermansson decisioned Ronaldo Souza and submitted Kelvin Gastelum, marquee results that placed him among the middleweight elite.
• Elite finishing arsenal — with 11 KOs and six submissions, his first-round guillotines of David Branch and Gerald Meerschaert showed how quickly he can end fights.
• Scandinavian standard-bearer — built at Frontline Academy, Hermansson became one of the most successful and enduring middleweights to come out of Norway and Sweden.