IShowSpeed has publicly called out KSI for a boxing rematch, and KSI has already accepted. The back and forth played out on X on 20 April 2026, with Speed telling KSI he would “whoop” him if they ever fought again.

.@KSI wallahi if we ever fight again i’m whooping your ass😂😂😂 you fought me 4 years ago when i was 17, i’m a grown man man. let’s put the gloves on lil bro and i’m not playing

— Speed⭐️ (@ishowspeedsui) April 19, 2026

And KSI responding within hours that he was “down to spar again.”

Haha I’m down to spar again my g 🤣 https://t.co/pkvVWLNTiY

— ksi (@KSI) April 20, 2026

The exchange sets up what could be one of the biggest creator boxing matches in years, reigniting a rivalry that was left unresolved after their 2023 charity sparring session ended early.

How The Callout Started

The flashpoint was a post from streamer JasonTheWeen, who claimed he had gone 10 rounds with KSI in a recent sparring session. KSI quote-reposted it with a pointed comparison, writing, “I gotta give it to him, he did better than speed.”

I gotta give it to him, he did better than speed https://t.co/9qP6Qhd6OD

— ksi (@KSI) April 19, 2026

That comment appears to have lit the fuse. Speed fired back on X within hours, tagging KSI directly and making it clear he wanted another shot.

KSI Vs IShowSpeed: What Happened In 2023

The pair first met in the ring on 15 December 2023, as part of a charity sparring event supporting the Anthony Walker Foundation. Speed was 18 at the time and had no prior boxing experience. KSI, by contrast, had been competing in influencer boxing for roughly four years.

The session was scheduled for six rounds, with Speed wearing headgear. KSI dominated early, dropping Speed multiple times. In the fourth round, KSI chose to stop the spar, citing Speed’s visible exhaustion while praising him for not giving up.

Speed became emotional and pushed to keep going to round six, but KSI declined. Speed left visibly frustrated, reportedly brushing off a post-spar handshake. At the time, the moment looked like the end of the rivalry rather than the start of one.

Why Speed Thinks It’s Different This Time

Speed’s argument is simple: he’s not the same person he was at 17. Since the 2023 spar, he has grown into one of the largest streamers in the world, has been noticeably more physical in his content, and recently made his WrestleMania debut, giving him actual in-ring experience under professional conditions.

He has also had brushes with elite boxing, including a sparring session with Filipino legend Manny Pacquiao during a visit to the Philippines. That’s a level of exposure he didn’t have the first time around, and it’s clearly shaping his confidence heading into any potential rematch.

The Reaction Online

Speed’s post went viral within hours, racking up hundreds of thousands of interactions. The most notable reaction came from MrBeast, who commented that he would bet US$100,000 on Speed if the rematch actually happened.

I’ll bet $100,000 on speed winning

— MrBeast (@MrBeast) April 19, 2026

A formal announcement hasn’t been made, and neither side has mentioned a date, venue, or whether the rematch would be another sparring session or a proper exhibition bout.

Where This Fits In The Creator Boxing Boom

A Speed vs KSI rematch would land squarely in the middle of a creator boxing scene that has only grown bigger. Jake Paul’s November 2024 fight with Mike Tyson, streamed live on Netflix, pulled in 108 million viewers globally and peaked at 65 million concurrent streams, making it the most-streamed sporting event in history at the time. The event drew over 72,300 fans to AT&T Stadium in Arlington, Texas, and generated a live gate of more than US$18.1 million.

Jake followed that up in December 2025 against Anthony Joshua, a fight that still drew 33 million Netflix viewers despite Joshua knocking him out in the sixth round. Logan Paul, meanwhile, has leaned heavily into WWE, further blurring the line between creator content and mainstream combat sports.

A Speed vs KSI rematch wouldn’t need to match those numbers to be considered a hit. Both creators sit at the top of the streaming and YouTube worlds, and the unresolved nature of their first meeting gives the fight a built-in story.

What’s Next

With both sides publicly on board, the ball now sits with the promoters. KSI has a long history of saying yes to high-profile matchups, including his closely contested bout with Tommy Fury, and Speed has rarely shied away from physical challenges since his 2023 loss.

Expect further updates in the coming weeks as conversations around a date, format, and broadcast partner start to firm up.

The post IShowSpeed Challenges KSI To Boxing Rematch, KSI Accepts appeared first on Shane the Gamer.