Demetrious Johnson
- Age: 37
- Weight Class(es): Flyweight & Bantamweight
- Country of Birth: United States
- Pro MMA Record: 24-4-1
- Knockout Wins: 5
- Submission Wins: 8
- Nickname: Mighty Mouse
- Championships Won: UFC Flyweight (Inaugural, 11 defenses) ONE Championship Flyweight (One time, current)
- Team: AMC Pankration
- Career Earnings Estimate: $6,147,000
Appreciation for the Ultimate Fighting Championships’ lower weight classes has often been lower than its heavier counterparts. This is what makes Demetrious “Mighty Mouse” so special.
The Kentucky, USA, native isn’t just the greatest flyweight competitor to have ever stepped in the octagon. Still, he also achieved pound-for-pound No.1 status, a rare status for 125lb UFC fighters and one that’s placed Johnson in the argument of being the best mixed martial artist in history.
Johnson’s story is still unfolding, but his legacy as a UFC legend is already firmly established. He’s not just a king of combat sports but a pioneer who has brought the flyweight weight class into the spotlight, forcing the MMA masses and UFC betting sites to acknowledge its significance.
Demetrious Johnson: The First Flyweight King
Johnson’s original introduction to mixed martial arts arrived after he refused a wrestling scholarship. Under the tutelage of a great mind in MMA, Matt Hume, his first amateur fight, which resulted in a lopsided knockout victory, was the beginning of a legendary career to come.
After years of building his skillset and a 5-1 pro record at the time, ‘Mighty Mouse’ jumped to the big stage of the UFC bantamweight division (the lowest weight class at the time). At 5-foot-3-inches tall, he was still undersized compared to some 135-pounders, which became evident when he faltered to Dominick Cruz in a bantamweight title bout.
The UFC needed a lower weight class, but little did they know, a superstar would be born when the promotion finally introduced a 125lb division (flyweight division) in 2012.
Dana White and company started a 125lb tournament to determine a champion of this weight class, and it was Demetrious Johnson who fought Ian McCall in the promotion’s first-ever flyweight bout. He went on to face Joseph Benavidez in the final, found success, and kickstarted a career in the company’s all-new weight class, which would see him go undefeated for six straight years.
Between 2012 and 2018, Johnson held firmly onto the UFC flyweight strap, resulting in a record-breaking 11 championship defenses. Behind a complete MMA skillset, he became renowned for his technical mastery, awkward striking style, and lightning speed, which, coupled together, made him basically untouchable at 125 pounds.
And who can forget UFC 216, where ‘Mighty Mouse’ claimed victory via flying armbar, a victory that remains the most insane and impressive submission win in UFC history?
In the octagon, Johnson had a unique ability to effortlessly transition between grappling and striking, thus making him a formidable challenge for the top-ten-ranked flyweights on the planet. His dominance was a salute to the technical side of MMA and has cemented a legacy as one of the best pound-for-pound competitors in history and the single greatest UFC flyweight ever, which still holds true six years after his departure from the promotion.
Demetrious Johnson: Gone Too Soon
There’s an undeniable stigma attached to fighters who leave the UFC. The term “has-beens” is often associated with such moves and usually signifies that a mixed martial artist isn’t cut out for the big leagues. On occasion, ex-UFC roster members manage to reinvent their careers, but rarely do we see such a scenario where a UFC fighter leaves as one of the best in the world and continues to find success in other promotions. Johnson, however, is the exception!
In a shocking twist, the MMA community was devastated when Johnson was traded to ONE Championship in 2018. He’d just lost a questionable split decision to Henry Cejudo (Johnson’s first defeat as flyweight champ), and the people were screaming for a rematch. Unfortunately, instead of the rematch, the ONE championship trade provided us with Ben Askren…
In hindsight, it was one of the worst decisions the UFC ever made. Although Johnson had previously beaten the brakes of Cejudo in their first meeting and held the record for most straight UFC title defenses ever (11), marketability was a clear problem for the suits in the UFC offices. It’s a shame, but the UFC has often shown favoritism to its fighters who had more bark than bite, and the most rewarded competitors aren’t always those whose actions speak louder than words – no matter how significant said actions are.
There was no stopping this workhouse of a flyweight when he arrived in ONE Championship. He won three straight fights dominantly, lining him up for his first title opportunity. Notably, ONE’s flyweight division was 135lbs, the divisional weight of the UFC’s bantamweight weight class, and that same division placed him in significant size disadvantages.
A déjà vu situation would arrive as Johnson lost his first flyweight championship opportunity in 2021. Adriano Moraes knocked him out viciously, as a level of doubt now overshadowed his elite status. That was until the rematch in 2022, and Mighty Mouse silenced the talk of him being past his prime as he returned the favor to Moraes with a KO/TKO win, lifted a championship in another promotion, and further grew his legacy that will stand the test of time.
Demetrious Johnson: What’s Next?
Johnson entered his 30th professional MMA bout, winning the trilogy against Moraes in May 2023. Retirement talks have been floating around the rumor mill, but we’re yet to receive a confirmation on this, and he’s still labeled as ONE Championship’s flyweight champion more than a year after his last title defense.
Should Johnson decide to hang it up, he’ll be one of the rare fighters who exit the sport as a multi-time title holder. It’s a status in glory kept for very few – such as Mighty Mouse’s fellow ‘G.O.A.T,’ candidate GSP – throughout a sport plagued with the carcasses of veteran fighters retiring with horrid records at the bottom.
Don’t be surprised if Johnson returns to defend his strap. He’s been active in grappling tournaments and winning those contests effortlessly, sort of like side quest missions as he decides on his future. We know he’s capable; it’s just a decision he’s taking longer than most.
You must respect ONE for holding up their flyweight division, but time is ticking. Will Johnson call it a day, or do we get one more run from ‘Mighty Mouse,’? Either-or, he’s an MMA legend with records and achievements that may never be emulated, not in this or the next generation, anyway!
Demetrious Johnson Mixed Martial Arts Accomplishments
- ONE Championship
- ONE Flyweight Championship (One time, one defense, current)
- ONE Flyweight World Grand Prix Champion (2019)
- Ultimate Fighting Championship
- UFC Flyweight Champion (First, 11 defenses)
- Most consecutive title defenses in UFC history (11)
- Most submission wins in UFC title fight history (5)
- The most UFC post-fight bonuses in flyweight division history (9)
- Most consecutive wins in UFC flyweight division history (13)
