KSI Age 2026: How Old Is KSI? 33, Prime, Sidemen & Boxing

Last updated: November 6, 2026  ·  By Nathan Cole

KSI is 33 years old in 2026. He was born Olajide Olayinka Williams Olatunji on June 19, 1993, in London, England, which makes him 33 years, four months and eighteen days old on the day this article was published — and 34 on June 19, 2027. He started uploading FIFA videos from his bedroom in 2009, at 16, and seventeen years later he is a YouTuber with more than 17 million subscribers, a chart-topping musician, a professional boxer with a 4-1-1 record, the co-owner of Prime Hydration, a founder of Misfits Boxing, a Britain’s Got Talent judge, and — as of this week — a minority shareholder in a football club.

The age question keeps getting asked because the numbers around him keep changing. He was 24 when he fought Joe Weller, 26 when he beat Logan Paul in Los Angeles, 30 when he lost to Tommy Fury, and 32 when he announced his boxing retirement in January 2026. In the same week he turned 33, the reporting around him started getting his age wrong — BBC Sport called him 32 in its November 4, 2026 report on the Dagenham & Redbridge deal. The birth date settles it: June 19, 1993, and 33 years old in 2026.

This article answers the age question first, then covers what 33 years has actually contained: the Watford bedroom, the Sidemen, the music career, the boxing record, the Prime fortune, and the November 2026 moves — a football club purchase, a sacked manager, and a fight offer from Wayne Rooney — with every figure tied to the outlet that reported it.

The Short Answer: How Old Is KSI?

KSI is 33 years old in 2026. He was born on June 19, 1993, in London, and he turned 33 on June 19, 2026. On November 6, 2026, he is 33 years, four months and eighteen days old. He turns 34 on June 19, 2027.

Two details in the reporting confuse people. The first is the birthplace: Wikipedia lists London as his birthplace and Watford as where he was raised, while some profile sites say he was born in Watford. The London figure comes from Wikipedia’s infobox and early-life section, and it is the one this article uses. The second is the BBC slip: BBC Sport’s November 4, 2026 report on his Dagenham & Redbridge investment called him “the 32-year-old” — a year short. A reader who trusts the BBC’s number gets the wrong answer. The birth date is the authority, and it says 33.

His age matters because his career compresses an unusual amount into seventeen years. He started at 16, joined the Sidemen at 20, fought his first boxing match at 24, released a UK number-one album at 28, co-founded Prime at 28, lost to Tommy Fury at 30, announced a boxing retirement at 32, and bought into a football club at 33. The table at the end of this article lays out the year-by-year version.

Early Life: London, Watford, and a Bedroom in Hertfordshire

Olajide Olayinka Williams Olatunji was born on June 19, 1993, in London, to parents of Yoruba heritage — the ethnic group from southwestern Nigeria. The family settled in Watford, Hertfordshire, where he grew up with his younger brother Deji, who later became a YouTuber himself under the name ComedyShortsGamer. KSI was privately educated at Berkhamsted School, a fee-paying school in Hertfordshire, where he met Simon Minter — the friend who would become Miniminter, his Sidemen co-founder, and one of the constants of his career.

The bedroom is where the story starts. In 2009, at 16, he began uploading FIFA commentary videos to YouTube under the name KSIOlajidebt, recording himself playing the game and talking over it in a style that was loud, funny, and very much of its moment. The early videos were rough — a teenager, a console, a microphone — but the audience grew fast, because the personality was already there: competitive, self-deprecating, and willing to make himself the joke.

By 2013, at 20, the bedroom channel had become a career, and the Sidemen gave it a structure. The group — KSI, Miniminter, Zerkaa, TBJZL, Behzinga, Vikkstar123, and W2S — started making challenge and gaming videos together, and the collective audience dwarfed anything any of them could build alone. KSI’s solo channel kept growing alongside it, and by the time he was 25 he was one of the biggest British creators on the platform.

The YouTube Rise: FIFA Videos to 17 Million Subscribers

KSI’s main channel passed 17 million subscribers by November 2026, according to BBC Sport — a figure that makes him one of the most-subscribed British creators alive. The growth was not linear. The FIFA videos built the base, the Sidemen videos multiplied it, and the boxing and music careers kept it growing after the gaming content slowed. A leaked figure from January 2026 gives a sense of what the channel still earns: on Michael McIntyre’s Big Show, the host opened the YouTube Studio app on KSI’s phone and revealed an estimated $105,000 in revenue for the previous 28 days — roughly $3,750 a day, from one channel, before the Sidemen channels, brand deals, and everything else.

The channel’s shape changed as he aged. The FIFA commentary of his teens gave way to challenge videos, then to boxing training content, then to music, then to business. Each pivot cost him some of the old audience and gained him a new one. The constant was the upload schedule and the willingness to put his real life on camera — the feuds, the training camps, the album launches, the business deals. At 33, he uploads less often than he did at 20, but each video reaches further, because the audience now follows the businesses as much as the man.

Forbes noticed the scale. KSI landed at number two on Forbes’ top creators list, a ranking that measures reach and earnings across platforms rather than subscribers on one. The ranking is the clearest sign of how far the bedroom channel traveled: a 16-year-old recording FIFA commentary in Watford is now, at 33, ranked among the two most valuable creators in the world.

The Sidemen: Seven Friends, One Empire

The Sidemen formed in 2013, when KSI was 20, and the group is now thirteen years old — older than some of its viewers. The seven members — KSI, Miniminter, Zerkaa, TBJZL, Behzinga, Vikkstar123, and W2S — built four channels with a combined 21 million subscribers, and the group’s business arm grew around the content: XIX Vodka, the Sides restaurant chain, and SDMN Clothing, the group’s own fashion label.

The Sidemen matter to KSI’s age story because they are the reason he never had to choose one career. The group gave him a base that kept paying while he tried boxing, then music, then business. When he stepped back from YouTube to train for a fight, the Sidemen videos kept his audience warm. When Prime launched, the Sidemen were its first marketing channel. The group’s charity football matches — the Sidemen Charity Match, played in stadiums in front of tens of thousands — became events in their own right, and KSI’s appearances in them kept him connected to the football world that would later sell him a club.

Thirteen years in, the group is the longest-running project of his life. He has had girlfriends, businesses, and boxing careers that lasted less time than the Sidemen have. The seven friends who started making videos together in 2013 are, in 2026, business partners running restaurants, a vodka brand, and a clothing line — and the channel that started it all is still uploading.

Music: From Diss Tracks to a UK Number One

KSI’s music career started as a joke and became a chart career. The early diss tracks — aimed at rival YouTubers — were rough, funny, and wildly popular. Then the joke got serious. His debut album, Dissimulation, released in 2020 when he was 26, reached number two on the UK Albums Chart. His second, All Over the Place, released in 2021 when he was 28, went to number one.

The singles carried the career further than the albums. “Lighter,” with Ella Henderson, “Really Love,” with Craig David and Digital Farm Animals, “Holiday,” “Not Over Yet,” with Tom Grennan, and “Patience,” with Yungblud and Polo G, all charted in the UK, and the collaborations — with Anne-Marie and Snoop Dogg among others — put him in rooms with artists who had never made a YouTube video. The music made him a different kind of celebrity: not just a creator with a fanbase, but a recording artist with chart positions that anyone in the industry could read.

Music also explains part of the fortune. A UK number-one album and a string of hit singles generate royalties that keep paying years after release, and the catalogue is an asset that grows in value as streaming grows. The music career has slowed since 2021 — boxing and business took the time — but the catalogue is still there, still earning, and still the reason he can call himself a musician without anyone laughing.

Boxing: The YouTuber Who Became a Prizefighter

KSI did not just fight on YouTube. He became a professional boxer, and the record is real: four wins, one loss, and one no contest as a professional, with three knockouts, plus an amateur win and a draw before that. The story starts in February 2018, when he was 24, with a win over fellow YouTuber Joe Weller at the Copper Box Arena in London. Six months later, at 25, he fought Logan Paul at Manchester Arena in front of a crowd that included millions watching live online — 2.25 million live viewers, roughly $13 million in pay-per-view sales — and the fight ended in a majority draw.

The rematch, in November 2019 at the Staples Center in Los Angeles, was his professional debut, and he won it by split decision after six rounds. The win gave him sporting credibility that no other creator had, and it set up the run that followed: two wins on one night in August 2022, beating Swarmz and then Luis Pineda hours apart; a win over FaZe Temperrr in January 2023; a no contest against Joe Fournier in May 2023; and then, in October 2023, at 30, the loss to Tommy Fury at Manchester’s AO Arena, by unanimous decision. The Fury fight carried a purse reportedly worth around $10 million in total, with KSI’s share estimated at $3 million to $5 million or more.

The boxing career ended — or paused — in January 2026, when he announced his retirement at 32. A month later he clarified that he was on a break rather than permanently done, which leaves the door open. Either way, the boxing years did something no YouTube video could: they made him a promoter. Misfits Boxing, the company he co-founded to stage creator and celebrity fights, streams on DAZN and runs cards around the world, and it earns money whether or not KSI ever fights again. The fighter built the promotion; the promotion outlasted the fighter.

Prime Hydration: The 0 Million Question

Prime Hydration launched in January 2022, when KSI was 28, co-founded with his former boxing rival Logan Paul and manufactured by Congo Brands, a Louisville-based beverage incubator. The launch was a phenomenon: bottles sold out, resale prices spiked, and the brand became the fastest-growing beverage launch in years. KSI reportedly holds around a 20 percent stake, and that stake is the reason his net worth is so hard to pin down.

The figures disagree by a factor of six. Celebrity Net Worth puts him at $100 million in 2026, a figure repeated by multiple outlets and by Guide Net Worth’s own KSI net worth 2026 profile. Icon Polls puts him at $40 million to $45 million. An older Celebrity Net Worth figure, still circulating in 2026, says $30 million. NetWorthSpot, which models YouTube revenue only, says $15.1 million. The honest range across serious trackers runs $40 million to $100 million, and the $100 million anchor rests on one assumption: that his Prime stake is worth what the brand’s peak valuation suggests.

That assumption is where the disagreement lives. Prime’s sales boomed, then fell — the brand’s decline is the story behind our net-worth profile’s title, “The $100M Question Behind Prime’s Fall” — and a 20 percent stake in a falling brand is worth less than the same stake at the peak. Some analysts value his Prime equity alone at $300 million to $600 million on paper, which would make the $100 million total look conservative. Others discount it to near zero, which would put him closer to the $40 million figure. Until Prime is sold or valued in a real transaction, no one outside the company knows. The $100 million figure is the most-cited estimate, and it is the one this article uses — with the range printed alongside it, so readers can see the argument instead of having it smoothed away.

2026: Britain’s Got Talent, Baller League, and Buying a Football Club

KSI’s 33rd year has been his busiest off camera. He joined Britain’s Got Talent as a judge in 2025, sitting on the panel for the show’s eighteenth series — a mainstream television job that put him in front of an audience that had never watched a YouTube video. He also founded the Baller League, the six-a-side football competition, served as its league president for its first two seasons, and owns his own team in it, Prime FC. The football interest is not a hobby. It is a business line, and in November 2026 it became a much bigger one.

On November 4, 2026, BBC Sport reported that KSI had bought a minority stake in Dagenham & Redbridge, the sixth-tier club from east London, with the club calling the deal “its most significant strategic partnership to date.” EssentiallySports put the stake at 20 percent. He arrived at his first game earlier that month — a 1-0 win over Dorking Wanderers — to a rapturous reception, live-streaming his time in the stands with a camera following him. Two days later, on November 6, the club sacked manager Lee Bradbury and appointed former England striker Andy Carroll as caretaker manager, with KSI watching on from the stands as Carroll’s managerial career began with a win.

The same week brought a fight offer. KSI said Wayne Rooney had contacted him and offered him a fight, and that he “could accept” after the Jake Paul bout — a claim reported on November 4, 2026, with the caveat that it is KSI’s own account of the conversation. Rooney, the former Manchester United and England striker, had trained in his youth and was recently spotted watching Tyson Fury’s win over Derek Chisora at Tottenham Hotspur Stadium. Whether the fight happens or not, the offer is a measure of where KSI stands at 33: a retired boxer being offered fights by one of England’s greatest footballers, while running a football club on the side.

Personal Life: Family, Girlfriend, and Keeping It Private

KSI’s family is part of the story. His younger brother Deji — ComedyShortsGamer — is a YouTuber in his own right, and the brothers’ relationship has played out in public, from collaborations to a very public falling-out and reconciliation. His parents, of Yoruba heritage, have stayed out of the spotlight. The family home in Watford is where the channel started, and the family is still the anchor: KSI has spoken about his parents’ support for a career they did not initially understand, and about the pressure of being the older brother who made it first.

His romantic life is the one area he keeps closed. Forbes lists his marital status as “In Relationship,” and he has confirmed he has a girlfriend, but he has never named her publicly and she does not appear in his content. In an era when creators monetize every part of their lives, the privacy is deliberate — and it is one of the few boundaries he has held since he was 16. There are no wedding announcements, no children, and no public relationship drama, which is itself unusual for a creator of his size.

He lives in London, where Forbes lists his residence, and his life at 33 looks very different from the bedroom in Watford. The businesses — Prime, Misfits, the Sidemen ventures, the Baller League, the football club — now take more of his time than the channel that started them. The age question, for KSI, is really a question about that transition: how old is the YouTuber who stopped being only a YouTuber? The answer is 33, and the businesses are the proof.

Career Timeline: Year by Year

Peer Comparison: KSI Against Logan Paul, MrBeast, and Speed

KSI is the oldest of the four biggest names in the creator economy — and the comparison shows what age buys. The table below uses Guide Net Worth’s own profiles and Celebrity Net Worth figures, so the comparison is apples to apples.

The age gap is the story. Speed is 21 and still building the audience; MrBeast is 28 and has already built a $2.6 billion company around it; Logan Paul is 31 and turned the same Prime stake into $150 million; KSI is 33, the oldest of the four, and the only one who has had four separate careers — YouTube, music, boxing, and business — before turning 34. Readers who want the full Logan Paul picture can find it in our Logan Paul age 2026 profile, which carries the same dated treatment of his 31 years and $150 million fortune, and the full money picture for KSI is in our KSI net worth 2026 profile.

Frequently Asked Questions

Sources & Reporting

This profile was researched on November 6, 2026, from live search results and the outlets named throughout: Wikipedia (KSI, updated July 2025) for the birth date of June 19, 1993, the London birthplace, the Watford upbringing, the Berkhamsted education, and the January 2026 boxing retirement; BBC Sport (November 4, 2026) for the Dagenham & Redbridge minority stake, the “more than 17m subscribers” figure, and the “32-year-old” slip this article corrects; allfootballapp (November 4 and November 6, 2026) for the Wayne Rooney fight offer and the Andy Carroll caretaker appointment; SurpriseSports (updated October 25, 2026) for the $100 million net worth, the 4-1-1 professional record, and the fight purses; Unifresher for the £75–80 million range, the Sidemen’s 21 million subscribers, the $105,000 YouTube revenue leak, the Forbes number-two creators ranking, the Britain’s Got Talent judging role, and the retirement clarification; Icon Polls for the $40–45 million range; EssentiallySports for the Prime launch, the Baller League presidency, and the 20 percent Dagenham stake; rickyspears.com for the 6-foot height and the older $30 million figure; NetWorthSpot (October 1, 2026) for the $15.1 million YouTube-only model; and Guide Net Worth’s own KSI net worth profile for the $100 million anchor and the Prime’s Fall framing, plus our Logan Paul age, MrBeast age, MrBeast net worth, and IShowSpeed age profiles for the peer figures. Net-worth figures are reported estimates, not audited balance sheets, and are labeled as estimates throughout.