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The Champion
10–0 · world champion
From Montana state wrestling champ to the youngest world champion BKFC has ever crowned. The full story, fight by fight.
King Kai World
Become the storm.
Undefeated 10–0 · BKFC Featherweight World Champion
Great Falls, Montana · Bare Knuckle Fighting Championship
The King of the BKFC
Youngest world champion in BKFC history. Still undefeated.
Kai Stewart won the first featherweight world title BKFC ever hung up, at 22 years old, and nobody has taken it off him since. Six straight defenses later he owns the promotion's record — and he set it on the field at Fenway Park.
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Inaugural champion. First man to ever hold the BKFC featherweight belt.
Six straight title defenses. The BKFC record.
No. 2 pound-for-pound. In the whole promotion, any weight.
10–0. Nobody has figured him out yet.
The reign continues
1
Only one man has ever worn it
The hardware
The first featherweight world title in BKFC history.
When the Bare Knuckle Fighting Championship crowned its first featherweight world champion in June 2023, it was Kai with his hand raised. Six defenses later, the black-and-gold belt still hasn't left Great Falls.
Every one of those title fights sits on the official BKFC record — the same promotion that put him on the diamond at Fenway Park for defense number six.
His official BKFC fighter profileEnter the world
The champ, the merch, the show.
One king, three doors. The title reign, the official gear, and everything Kai gets into when the wraps come off.
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Official Merch
Wear the storm
Tees, hats, and the black & gold championship collection — every piece straight from the official King Kai store.
03
Off the Clock
Streams · the Tweek & Kai Show
Fights, fishing, hunting, and streams. The Tweek & Kai Show and everything else lives on the channel.
The collection
Straight from the King's closet.
The pieces fans grab first. Every card opens the product page on the official store — sizes, variants, and checkout all live there.
Run with the King
Three ways in.
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Follow the King
Fight camps, fishing trips, and everything in between. 77.8K strong on Instagram and counting.
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Watch the shows
Streams on Twitch, the Tweek & Kai Show, and the full catalog on YouTube. The crown comes off, the content stays on.
03
Wear the storm
The official merch line: championship tees, the black & gold collection, and gear from the Tweek & Kai Show.