KSI: Age, weight, height, boxing record, nickname, trainer, world ranking, walk on song, promoter, net worth & more

Everything you need to know about the face of Misfits Boxing - British social media star KSI.

Growing into one of the biggest social media stars in the UK after rising to prominence with his viral FIFA YouTube videos, KSI made his first foray into the world of crossover boxing when taking on Joe Weller at the Copper Box Arena in London in February 2018.

His victory against Weller set up two money-spinning fights against American YouTuber Logan Paul on both sides of the Atlantic, with the first fight in Manchester ending in a draw and the rematch being won by KSI in Los Angeles.

Since then, KSI has co-founded his own crossover boxing organisation Misfits Boxing which has provided a platform for social media creators to try their hand at the sport.

The Brit has continued to fight on Misfits shows, scoring wins against Swarmz, Luis Pineda and FaZe Temperrr before losing for the first time in the ring against Tommy Fury at the Manchester Arena in October 2023.

As well as boxing, KSI also continues to upload load content on YouTube as well as make rap music and front lucrative brands including Prime Hydration.

WHAT IS KSI'S REAL NAME?

Brought up in Watford, Hertfordshire, KSI's actual name is Olajide Olatunji.

KSI PROFILE

Date of Birth	19th June 1993
Age:	32 (As of 2025)
Birthplace:	Watford, United Kingdom
Nickname:	'The Nightmare'
Height:	6' 0" / 183cm
Reach:	76" / 193cm
Stance:	Orthodox
Weight Division:	Cruiserweight/ Light Heavyweight
Professional record:	4-1-0 (3 KOs)
Amateur record:	1-0-1

KSI - AGE

KSI was born on 19th June 1993, meaning he is currently 32-years-old.

KSI HEIGHT, WEIGHT & REACH

KSI stands at 6"0" (183cm) tall and boasts a reach of 76" (193cm), making him a tough opponent.

His weight has fluctuated between weight classes in his career, he weighed in at 193.2 lb (87.6 kg) for his most recent fight, against Tommy Fury in 2023.

Weight is a current point of contention preventing a fight between KSI and fellow YouTuber Jake Paul, with KSI requesting a weight closer to 180 lbs whilst Jake Paul wants 19o lbs.

KSI RECORD

5-1-1 (4 KOs)

KSI's short boxing career has seen him face five fights at amateur and professional level.

A debut amateur win over Joe Weller kicked things off, before an amateur draw with American Logan Paul followed.

KSI then had a rematch with Paul as a professional, which he won via split decision.

Three years out of the ring were followed by successive wins over Swarmz, Luis Pineda and Faze Tempurrr and a no contest result against Joe Fournier.

KSI's last fight was in October 2023, where he lost to Tommy Fury by unanimous decision.

KSI LAST 5 FIGHTS

• October 2023 - Lost to Tommy Fury by Unanimous Decision

• May 2023 - No Contest v Joe Fournier

• January 2023 - Beat Faze Tempurrr by KO (1/6)

• August 2022 - Beat Luis Pineda by KO (3/3)

• August 2022 - Beat Swarmz by KO (1/3)

KSI NICKNAME

KSI's nickname, 'The Nightmare', has been used by the YouTuber since his first amateur fight against Joe Weller.

He reportedly chose the nickname to reflect his aggressive approach in the boxing ring.

WHO IS KSI'S PROMOTER?

KSI is promoted by Misfits Boxing, the boxing promotion he co-owns and runs alongside Mams Taylor, the CEO of Misfits.

WHO IS KSI'S BOXING TRAINER AND GYM?

Formerly trained by professional cruiserweight prospect Viddal Riley, KSI is now coached by Alexis Demetriades.

Demetriades is the head coach at London Shoofighters where KSI trains.

KSI WALK OUT SONG

KSI often switches up his walk-on song, previously walking out to new versions of his own music.

For example at the second Logan Paul fight, KSI was joined by S-X, Rick Ross and Lil Baby as he walked out to his new song "Down like that".

WHAT IS KSI'S NET WORTH?

As a YouTuber, boxer, music artist and business entrepreneur, KSI is one of the wealthiest social media stars in the UK at present.

As of 2025, KSI is reported to have a net worth of around £79.3m.

HOW TO WATCH KSI BOXING FIGHTS?

As the face of Misfits Boxing, all of KSI's fights under the organisation's promotion will be available to watch live on DAZN as the official broadcast partners of the crossover boxing company.

WHAT'S NEXT FOR KSI?

Having been out of the ring since October 2023, KSI had scheduled a return for March 2025 against Dillon Danis. This was postponed due to illness for KSI.

He's looking increasingly likely to enter the ring soon, with bouts against Jake Paul and Wayne Bridge having been floated.