KSI boxing history: All opponents & fight results so far

Matthew Legros
KSI on stage.

KSI has been a big name in boxing for over four years and owns a strong record against influencer competition in exhibition and professional bouts.

Born Olajide Olayinka Williams “JJ” Olatunji, KSI is 4-1 in his boxing career. Olatunji’s win-loss total amounts to five fights, but his win over Joe Fournier on May 13, 2023 was overturned and ruled a no contest.

Although KSI hasn’t completed since October 14, 2023, he told Logan Paul that he felt retired on Paul’s “Impulsive” podcast that fall. However, he’s since opened up about wanting to fight Jake Paul to cement himself as the best boxer in the influencer boxing space.

Here’s everything you need to know how KSI achieved his 4-1 record as a boxer.


Joe Weller, 2018

KSI took on YouTube star Joe Weller in his amateur boxing debut. He employed a good orthodox stance and led with his jab for much of the fight. 

Olatunji withstood a first-round flurry from Weller and dominated the rest of the bout, putting him away with a series of straight lefts and right hooks that forced the referee to call the bout. 

KSI crowned himself as the YouTube Boxing champion with the knockout over Weller under his belt.

Logan Paul, 2018

KSI and Logan Paul’s exhibition bout on August 25, 2018 was historic. Two of the world’s biggest streamers generated massive hype for the fight with months of trash talk and an undercard featuring Paul’s younger brother Jake Paul. 

During the fight, the elder Paul imposed his size advantage early, but KSI used his mobility and footwork to outland Paul in the middle rounds. A late surge from Paul in round five was silenced by several huge power shots from KSI upstairs in round six. 

The fight ended in a majority decision draw. Both agreed to a rematch to settle who the true YouTube Boxing champion was. Beyond that, it forged a new niche influencer boxing space that has seen great success to date.

Logan Paul, 2019

KSI’s rematch with Paul did more than bring out stars like Justin Bieber to the Staples Center in Los Angeles, CA.

KSI vs. Logan Paul 2 was the Brit’s third boxing fight and first as a professional, without headgear too. He looked like a pro from the onset. 

The then 26-year-old took advantage of Paul’s patience in the early rounds and got the advantage on the scorecards with calculated hooks. His aggression paid off in the later rounds and he picked up a split decision victory to retain his self-proclaimed title.

Swarmz, 2022

Now experienced, KSI set his sights a third YouTuber, Alex Wassabi, for a clash on MF & DAZN: X Series 001, but a last-minute concussion forced Wassabi to pull out. English rapper Swarmz got the bell as KSI’s new opponent. 

Before the fight, Swarmz told the DAZN broadcasting crew “I’m like Mike Tyson. I will shock everyone.” Unfortunately for him, he was more like one of Tyson’s opponents. 

KSI had him on the retreat for the entire first round and landed big punches upstairs and to the body before knocking him out with a 1-2 combination in round two.

Luis Alcaraz Pineda, 2022

KSI did not need time to recover after beating Swarmz in convincing fashion. He went toe-to-toe with Luis Alcaraz Pineda as another replacement opponent.

KSI looked to take Pineda’s head off. He let his right hand do the talking. While the social media influencer landed a couple of shots to the back of the head, he proved to be too much for the Mexican in the end. KSI won the inaugural MFB cruiserweight title with the win.

FaZe Temperrr, 2023

FaZe Temperrr was the second fighter after Paul that looked like he knew his way around the boxing ring when he went toe-to-toe with KSI in 2023. But appearances can be deceiving.

After getting tangled in close on a few exchanges, Olatunji found an opening in the FaZe Clan member’s guard late in the first round and connected on a vicious straight right hand that knocked him out. 

Joe Fournier, 2023

KSI’s showcased bravado in the ring at this stage in his career. He stared down Fournier while the referee laid the ground rules before the opening bell. 

It didn’t take long for the elusive KSI to weather Fournier’s repetitive 1-2 combo. He connected on a short left and followed that up with a stunning right hand that laid Fournier flat on the canvas for his best KO. Afterward, the decision was changed to a no contest due to KSI illegally elbowing the former WBA International light-heavyweight champion prior to the KO.

Tommy Fury, 2023

This was the time for KSI to put all of his experience together. Tommy Fury was fresh off handing superstar Jake Paul his first boxing defeat and was out to do the same to Olatunji. 

The match went tit for tat, with both fighters clinching and going for the body on multiple occasions. The judges ruled the close fight in favor of Fury, who initially won by way of majority decision. Afterward, the ruling was changed to a unanimous decision win for the lineal heavyweight champion Tyson Fury’s younger brother.

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