Conor McGregor vs. Max Holloway Odds: Betting Line Tightens Ahead of UFC 329 Comeback Fight

Conor McGregor is back in the Octagon for the first time in five years, and the biggest name in UFC history walks into T-Mobile Arena on Saturday night a betting underdog against an old rival. McGregor faces Max Holloway in the UFC 329 main event, a welterweight rematch of their 2013 featherweight bout, with International Fight Week in Las Vegas building to its biggest crescendo yet.

McGregor’s last appearance came on July 10, 2021, a TKO loss to Dustin Poirier that ended with a broken leg and years of uncertainty about whether “The Notorious” would ever fight again. He resurfaces at 170 pounds against Holloway, a former featherweight and lightweight champion who has never competed above 155 before this fight. The two first met in Boston in August 2013, when McGregor won a three-round decision despite tearing his ACL mid-fight — still managing to outwrestle Holloway to the finish.

How the Odds Have Shifted Since McGregor’s Return Was Announced

When the fight was first reported in May, sportsbooks treated McGregor as a heavy afterthought. FanDuel opened Holloway at -410 to McGregor’s +290, and some books had the gap even wider before adjusting. Bettors have steadily closed that spread over the past eight weeks. As of fight week, DraftKings had Holloway at -225 and McGregor at +185, while other major sportsbooks showed similar movement toward -213/+183. The line has tightened considerably, but Holloway remains the clear favorite entering fight night.

Holloway is also priced as the favorite to finish the fight, with several books listing him around -125 to win via knockout, submission, or disqualification, while the over/under on fight length sits near 2.5 rounds. That pricing reflects a fairly unanimous read across the betting market and among analysts: Holloway’s volume and cardio are seen as difficult problems for a 38-year-old McGregor to solve, especially in a division 25 pounds heavier than any weight class Holloway had fought at before.

Why Experts Are Split on the Finish, Not the Winner

Media prediction panels have been almost uniformly picking Holloway. A five-person CBS Sports panel had four of five picking Holloway by decision or stoppage, with only one dissenting toward a McGregor finish. Forbes’ betting analysis leaned the same direction, projecting Holloway to “piece up McGregor with volume” and get a finish after the midpoint of the fight, while noting McGregor still carries a puncher’s chance in the opening minutes before pace and volume become decisive factors.

The stylistic matchup is part of what has captured so much attention. Holloway is known as one of the highest-volume strikers in UFC history, a fighter whose durability and pace over 15 or 25 minutes have worn down far younger opponents than the version of McGregor stepping in Saturday. McGregor, by contrast, built his legacy on early finishes and fight-changing power, but has fought only once in the last six years. The layoff, the added weight class, and Holloway’s own historical durability are the central questions the betting market has been pricing in for two months.

What’s at Stake Beyond the Fight Itself

UFC 329 carries weight far beyond a single result. McGregor has already stated he is contracted to fight again as soon as April 2027, meaning a win — or even a competitive performance — could reshape the roadmap for the sport’s biggest commercial draw heading into next year. For Holloway, a win at a new, heavier weight class adds another signature victory to a resume that already includes reigns as featherweight and BMF titleholder, while a loss would raise fresh questions about his move up in weight.

The full card surrounding the main event is stacked as well, with Benoit Saint Denis facing Paddy Pimblett and Cory Sandhagen taking on Mario Bautista rounding out the main card. But every eye in the building, and among bettors monitoring line movement all week, is fixed on whether a 38-year-old McGregor can turn back the clock — or whether Holloway’s volume finally settles a rivalry that started nearly 13 years ago in Boston.

Anyone looking to get a bet down on the main event or the rest of the UFC 329 card can compare current markets through a DraftKings promo code or a FanDuel promo code, both of which have posted live lines on the McGregor-Holloway rematch throughout fight week. For a broader look at where lines stand across the industry, the sportsbooks hub tracks odds and promotions across every major operator, while bettors comparing books head-to-head can also check the BetMGM promo code and Caesars Sportsbook promo code pages for additional markets on the card. New bettors wanting a primer on how the numbers work can also check the site’s odds and probability calculator before placing a wager on Saturday’s main event.