Las Vegas has long been the undisputed capital of boxing, hosting some of the most iconic and profitable events in the sport. Measuring “biggest” by live-streaming revenue – the gold standard of commercial success – these five fights stand out from the rest. Fueled by massive hype, star attraction, rising ticket prices and larger venues, they represent the pinnacle moments of the current era of boxing. Here’s a deeper look at each of them, including the build-up, the action inside the ring, and their lasting impact.

1. Floyd Mayweather Jr. vs. Manny Pacquiao

May 2, 2015 – MGM Grand Garden Arena
Gate: $72.2 million

Dubbed the “Fight of the Century,” this welterweight superfight was years in the making, with negotiations dragging on due to contract disputes, drug-testing disputes and promotional rivalries. Mayweather, the defensive champion and undefeated pound-for-pound king, faced Pacquiao, an eight-division champion and an offensive whirlwind. Anticipation was unparalleled: tickets sold out within minutes and ringside seats cost tens of thousands of dollars. More than 16,000 fans packed the arena, creating a record-breaking gate.

In the ring, Mayweather’s counterattack and elusiveness neutralized Pacquiao’s aggression, leading to a unanimous decision victory (118-110, 116-112, 116-112). While criticized as cautious and disappointing given the hype, the event broke pay-per-view viewership records (4.6 million buys) and remains boxing’s benchmark for global appeal and revenue. For the full story of the six-year negotiation saga, the fight itself and the shoulder controversy that followed, read our full breakdown: Mayweather vs. Pacquiao: The Complete Fight Story.

2. Floyd Mayweather Jr. vs. Conor McGregor

August 26, 2017 – T-Mobile Arena
Gateway: $55.4 million

In this crossover spectacle, boxing’s best defensive fighter faced the UFC’s biggest star. McGregor brought bullshit bravado and a huge MMA fan base to his professional boxing debut, while Mayweather came out of retirement at the age of 40 for one more payday and a chance to build a 50-0 record. The action was electrifying, with a four-city international press tour creating viral moments at every stop and turning the promotion into a cultural event that transcended both sports.

The fight created early excitement as McGregor surprised with aggressive attacks and unconventional angles, winning the early rounds and turning skeptics from skeptics. However, Mayweather’s experience and fitness took over as McGregor weakened. He stopped McGregor in the 10th round via TKO, becoming the first fighter in history to go 50-0. Controversial as a “real” boxing event, it drew casual fans in numbers the sport had not seen since Tyson’s day and cemented Vegas as a destination for huge events. For full coverage of the fight – including press tour chaos, CompuBox stats and a $600 million financial collapse – read Mayweather vs. McGregor: The Complete Fight Story.

3. Canelo Álvarez vs. Terence Crawford

September 13, 2025 – Allegiant Stadium
Gateway: $47.2 million

Representing a bold transition to stadium boxing, this undisputed super middleweight title fight moved outdoors to Allegiant Stadium, drawing a sellout crowd of 70,482 fans, the second-largest indoor boxing attendance in U.S. history, surpassing Muhammad Ali vs. Leon Spinks II in Recent Orleans (63,352 in 1978). Canelo, the Mexican superstar and long-reigning undisputed super middleweight champion, faced Crawford, the undefeated three-division champion who had moved up two weight classes from junior middleweight. The event was broadcast live on Netflix worldwide and attracted an estimated average minute audience of 36.6 million viewers worldwide.

What happened was a masterclass upset. Crawford, who weighed the same as Canelo despite being a naturally smaller man, adapted admirably to the height challenge. Using a keen double jab to control distance, excellent footwork and precise combination punches, Crawford defeated Canelo within 12 rounds. The scorecards read 116-112, 115-113, 115-113, making Crawford the novel undisputed super middleweight champion and the first boxer to hold undisputed titles in three different weight classes in the four-belt era. The technical excellence of the fight and the shocking result ushered in a novel era, proving that boxing on a Vegas stadium scale still has a chance to survive and that Crawford should be in the conversation with the best pound-for-pound fighters in boxing history. For the full recap, check out BoxingInsider’s fight night coverage: Amazing! Terence Crawford defeats Canelo Alvarez. For more on how Crawford dealt with the confusion, see How Terence Crawford Did It.

4. Canelo Álvarez vs. Gennady Golovkin I

September 16, 2017 – T-Mobile Arena
Gateway: ~$27 million

The first meeting between middleweight titans Canelo and “GGG” Golovkin was a purist’s dream: power versus pressure in a fight for 160-pound supremacy. Years of preparation proved it was a classic Mexico-Kazakhstan clash, in which Golovkin’s devastating knockout streak – 23 straight stoppages early in the fight – collided with Canelo’s deft counter-punching and star power. The newly opened T-Mobile Arena quickly sold out, reflecting the huge demand for a fight that many considered to be the best that could be fought in boxing at the time.

The fight lived up to expectations – a brutal, back-and-forth war that kept the crowd on their feet for most of the 12 rounds. Golovkin pressed relentlessly, landing ponderous shots and controlling the ring, while Canelo landed keen counterattacks and had his moments of dominance. It ended in a controversial draw: judge Adalaide Byrd scored it an astonishing 118-110 for Canelo, Dave Moretti 115-113 for Golovkin, and Don Trella 114-114. Byrd’s scorecard became one of the most criticized in current boxing history and the general consensus was that Golovkin had done enough to win. The debate fueled huge demand for a rematch and cemented the fight as one of boxing’s current classics.

5. Canelo Álvarez vs. Gennady Golovkin II

September 15, 2018 – T-Mobile Arena
Gateway: ~$24 million

The rematch, which took place exactly a year later at the same venue, brought additional excitement after a controversial draw in the first fight and a six-month delay caused by Canelo’s suspension for testing positive for clenbuterol (he attributed it to contaminated Mexican beef, and the suspension was terminated before the fight). Promoted as a defining chapter, it once again packed the T-Mobile Arena with fans eager for closure.

This time, Canelo fought with more aggression than in the first meeting, coming forward and attacking Golovkin in the middle of the ring rather than relying solely on counterattacks. He was close to a majority decision: two judges scored Canelo 115-113 and the third scored it 114-114. Tight rounds and fierce exchanges reignited debate over the results, but Canelo’s increased activity and willingness to trade made the result easier to accept than a draw in the first fight. The victory unified the WBA, WBC and Ring magazine middleweight titles. The intensity and drama of the contest – two fights, one draw and a decision that could have gone either way – made it a commercial and competitive triumph that defined the middleweight division for a generation.

What do these fights tell us?

These five fights showcase the evolution of Las Vegas as the fight capital of the world – from the arena highlights at MGM Grand to the spectacle at Allegiant Stadium – fueled by star power and global attention. Canelo Álvarez appears in three of the top five, demonstrating his commercial dominance over the past decade. Floyd Mayweather finished in the top two, confirming his status as the biggest pay-per-view draw in boxing history. And Crawford’s upset victory at Allegiant Stadium proved that the biggest fights can still produce the most memorable results.

While historic fights like Tyson-Holyfield, Leonard-Hearns and Hagler-Leonard have enormous cultural significance, these five dominate in purely financial terms – the live goal numbers that define the business of current boxing. What’s next for the fighting capital? Only time will tell.