Rafael dos Anjos and Joanna Jędrzejczyk both rose to the occasion at UFC 185 on Saturday night and now sit atop the Lightweight and Women's Strawweight thrones.
Dos Anjos took apart Pettis over the course of five rounds and when it came to the judge's decision, there was absolutely no question as to crowning a new champion.
The Brazilian fighter, who in the past has complained about being overlooked in the stacked Lightweight division, will have no qualms now as the rest of the division now looks up to him.
It capped a momentous nine month run in which dos Anjos beat former champion, Benson Henderson, via knockout back in August, in what was considered a big upset.
He followed that up with an equally one sided showing against Nate Diaz in December. Three months after that, he was destroying the man they call 'Showtime'.
Pettis looked a non-starter against dos Anjos and was caught early on and his eye was busted open by a big left hand from dos Anjos.
If it ever felt like someone was overlooking dos Anjos, then Pettis' performance would be the prime example of that.
He's paid for that mistake and now dos Anjos sits atop the Lightweight division and Pettis' will have to work his way back up after UFC President Dana White dismissed any talk of an instant rematch.
A new Golden Girl for the UFC?
Earlier in the evening, the UFC's newest division had its second champion crowned as Joanna Jędrzejczyk battered Carla Esparza to win the Women's Strawweight championship.
Jędrzejczyk, who's name was as much of the talk as her fighting skills coming into the fight, dismantled the champion, who like Pettis, looked second rate in comparison to the challenger.
The former six-time world Muay Thai champ was all over Esparza with her phenomenal striking and late into the second round, she landed a flush combo that Esparza wasn't even trying to defend.
The referee called a stop to the fight then and there and as a result, Jędrzejczyk now has a new name - Champion.
Elsewhere, contenders start to rise
The UFC 185 card was nothing short of stacked to start with, and that was evident with the likes of Ross Pearson being pushed down to preliminary card action.
Former UFC Welterweight champion Johny Hendricks, former PRIDE and K-1 Heavyweight champ Alistair Overeem and former Olympic gold medallist, Henry Cejudo were all dominant in their victories on Saturday.
Hendricks put himself in prime position to get the next shot at his former title, once Robbie Lawler and Rory MacDonald are done, as he saw off Matt Brown via a unanimous 30-27 decision.
The score and decisions were the same for Overeem, who fought a great tactical fight to overcome the power of Roy Nelson's overhand right.
Nelson was frustrated as Overeem was successfully able to work around 'Big Country's' might and secure himself a victory that will keep him within a win of a title shot, considering how light the heavyweight division is at the moment.
And the former Olympic wrestling champion Cejudo was able to overcome issues with his weight cut and looked like a beast as he beat former title contender Chris Cariaso via a 30-27 unanimous decision as well.
With the flyweight division needing new blood for title contenders, current champ Demetrious Johnson would've had one eye on this fight, knowing that if Cejudo wins his next bout, he'll be a fresh match-up and a tough one to boot.
As for Pearson, he simply outclassed Sam Stout and put himself back on a winning streak, after he suffered a huge upset last time out to Al Iaquinta.
He won't be wanting to be off the main cards for long but he took home with him an extra $50,000 in Performance of the Night bonuses and he'll more than happy with that.