Floyd Mayweather claimed bragging rights with a points decision victory over rival Manny Pacquiao in Las Vegas.
The Money Man ran out a 118-110, 116-112 and 116-112 winner over the Filipino at the MGM Grand.
Mayweather stretched his unblemished record to 48 fights to bag a chunk of the $300m purse.
The 38-year-old barely broke sweat as Pacquiao struggled to make a dent on the American fighter.
Here’s five things we learned:
1. Mayweather’s tactics
Pacquiao was on the front foot but he struggled to land many punches on Mayweather.
The American was happy to soak up the pressure and pick the Filipino off when he could. However, the Money Man’s tactics didn’t go down well with fight fans.
QPR captain Joey Barton was among those to criticise his approach.
He tweeted: “Said you are greatest of all time this week. Better than Ali. At what? Running away? Spoiling up close? Horrible to watch. Boring.”
2. Floyd wins the style stakes
Pacquiao’s ring walk was low key and the Filipino was overshadowed by the Money Man.
Mayweather waltzed in with pop star Justin Bieber by his side. But it was his attire that set tongues wagging.
Floyd wore a white, black and gold jacket that matched his shorts, along with a ‘Mayweather Promotions’ snapback.
His rival entered the fray in a simple white t-shirt, and unfortunately it wasn’t just the fashion contest the Filipino lost.
3. Star studded affair
The stars flocked to Las Vegas for what was billed as the ‘richest fight in history’.
Jay Z and Beyonce were among those in attendance as Mayweather edged out his rival on points.
Rapper Lil Wayne, Christina Milian, Sean “Diddy” Combs and Mary J Blige were other megastars from the music world in attendance.
NFL quarterback Tom Brady and Michael Jordan led the list of big sporting names, while former tennis star Andre Agassi was ringside with his wife Steffi.
4. Jamie Foxx belts out anthem
Jamie Foxx put in an emotional performance as he sang the American national anthem ahead of Mayweather and Pacquiao’s fight of the century.
While the 47-year-old star’s rendition of the Star-Spangled Banner seemed to be appreciated by the crowd at the MGM Grand Hotel & Casino, it didn’t have quite the same effect on Twitter.
Several took to the social networking site to slam his performance, with some offering up some boxing references to poke fun at the Hollywood actor.
One Twitter user wrote: “Wonder if either of the fighters can stand as much punishment as Jamie Foxx just handed out to the national anthem? #MayPac”
5. Fans made to wait as US pay-per-view services crash
Mayweather’s showdown with Pacquiao was delayed by around 45 minutes.
The fighters were due to take centre stage around 4am UK time, but the ring-walk was put back.
Unconfirmed reports suggest the hold up was due to subscription networks in the US being overloaded in what is the biggest pay-per-view event in the sport’s history.
Fight fans in America had to cough up $99.95 to watch the eagerly-anticipated showdown. However, some of them were left disappointed as DirecTV viewers encountered problems.
Mayweather vs Pacquiao – round-by-round summary
It’s six years too late, but Mayweather and Pacquiao finally fight each other in what is dubbed “Fight of the Century”.
It’s taken five years and and $300million but boxing’s Big Two finally touched gloves at 4.58am BST and hardly a punch was traded in anger. Cagey start by both fighters.
Pacquiao realises he needs to get ahead early, tries to take control but again no real initiative from either fighter. Manny tries to control the centre of the ring but without much success.
Mayweather beginning to roll his shoulders in that elusive style of his but no fighter can take the initiative. Pacquiao needs to get on his bike but can’t get the combinations going.
The Pacman at last asserting authority and trying to take control. First action of the fight with Pacquiao pinning Mayweather on the ropes. The Pacman’s best round so far.
Instead of pressing forward, Manny allows Mayweather to control the middle of the ring and and get his right cross going for the first time in the fight. Another even round.
Will this Fight of the Century ever get going? Mayweather is getting $15million a round and is hardly breaking sweat, happy to soak up the pressure on his arms.
The cameras zoom in on Beyonce and she is probably thinking her sister Solange could put up a better show. Hardly any punches thrown in anger. Mayweather takes round without much effort.
The Pacman is finally stung into action and connects with a right cross early on but cannot sustain the pressure throughout the round. Mayweather gets on his bike to avoid problems.
Three quarters of the way through and no fighter wants to take control. Manny continues to come forward and does enough to win the round but with hardly any punches thrown.
The cornermen try to sting their men into action but this is turning into a bore fest. It suits Mayweather but if these two are the best pound-for-pound fighters on the planet they are conning us.
Mayweather has hardly had to break sweat. He is pulling off the Great Las Vegas heist and looks more like Danny Ocean than the oustanding boxer he is meant to be. Steals round again.
Heads are being shaken in the crowd. The Pacman has not turned up for this fight and Mayweather starts to dance his way out of harms way. He is the Jose Mourinho of boxing.