The Octagon has seen legends built — and legacies shattered. This is your ultimate look back at the most shocking UFC title losses of all time.

Whether it’s a dominant champion being dethroned out of nowhere or a massive underdog pulling off the impossible, UFC history is filled with jaw-dropping upsets that left fans speechless. From last-minute knockouts to tactical masterclasses, these fights changed careers and reshaped divisions.

Now, we relive the madness in this Full Fight Marathon — featuring the most unbelievable title losses in UFC history.

 Matt Serra def. Georges St-Pierre – UFC 69

One of the biggest upsets in MMA history.
GSP was seen as unstoppable, a rising Canadian superstar entering his prime. But Matt Serra, fresh off The Ultimate Fighter, came in with zero pressure — and knocked GSP out in the first round. The MMA world was stunned. Nobody saw it coming.

🎙️ “Matt Serra just shook the world!” — Joe Rogan

 Holly Holm def. Ronda Rousey – UFC 193

Ronda Rousey was the face of women’s MMA, unbeaten and finishing opponents in seconds. But Holly Holm, calm and composed, picked her apart with striking and footwork — before landing a perfect head kick that ended the fight and Rousey’s reign in brutal fashion.

 Fans couldn’t believe it. Ronda was human after all.

 Julianna Peña def. Amanda Nunes – UFC 269

No one gave Julianna Peña a shot.
Amanda Nunes was being talked about as the GOAT. But Peña pressured her from Round 1, absorbed the power, and in Round 2 — took her down and submitted her. It wasn’t luck. It was pure grit.

💬 “I told you I’d shock the world.” — Peña, post-fight.

 Leon Edwards def. Kamaru Usman – UFC 278

This was more than just a comeback.

Usman was seconds away from defending his title once again. But Leon Edwards, with the odds stacked against him, threw a perfect left head kick with less than a minute left in Round 5 — and slept the champ.

 “Headshot. Dead.” — Edwards
 One of the greatest finishes in UFC history.

 Chris Weidman def. Anderson Silva – UFC 162

Anderson Silva’s cocky taunting finally caught up with him.

The longtime middleweight king was showboating — hands down, chin out — until Weidman landed a clean punch that dropped the legend. Just like that, The Spider’s reign was over.

 A lesson in staying humble — and keeping your hands up.

Where to Watch the Full Fights

The full fight marathon is available now on:

UFC Fight Pass

ESPN+ Archives

UFC’s Official YouTube Channel (Highlights)

UFC Countdown Specials

Binge the chaos. Relive the shock. Rewatch history.

Why We Love These Fights

These shocking title losses remind us why we love MMA:

Anything can happen.

No champion is invincible.

Every second matters.

Whether you’re a casual fan or a hardcore fight nerd, these are the moments that made the UFC what it is today — unpredictable, unforgiving, and unforgettable.

 Final Word:

Titles can be won in seconds — and lost in moments.
So sit back, press play, and relive the SHOCKING UFC Title Losses that shook the world.