Prediction markets are lighting up ahead of UFC 330 this Saturday night at Xfinity Mobile Arena in Philadelphia, where Islam Makhachev defends his welterweight title against Ian Machado Garry. Polymarket bettors have poured over $1 million into the main event alone in the last 24 hours, and the crowd is siding heavily with the champion.

What the Markets Are Saying About Makhachev-Garry

On Polymarket, Makhachev is sitting at roughly 76.5% implied probability to win, with Garry at 23.5%. That lines up closely with the UFC odds at major sportsbooks, where Makhachev is priced between -340 and -370 and Garry sits anywhere from +255 to +275 depending on the book. The main event has already generated over $1.7 million in total Polymarket volume with more than $217,000 in liquidity, easily the most-traded fight on the card.

Some handicappers see a gap between the market’s confidence and the actual numbers. Projections have put Makhachev closer to a 70% favorite in fair value terms, which would suggest Garry at plus-250 or better carries some live-dog appeal. A few bettors are also circling Makhachev by decision, since Garry has never been finished in his career and this fight may simply go the distance.

Inside the Numbers for Both Fighters

Makhachev enters at 28-1 overall and 17-1 in the UFC, riding a 16-fight win streak that’s tied with Anderson Silva for the longest in promotion history. A win Saturday sets a new UFC record outright. The 34-year-old southpaw is already regarded as one of the greatest lightweights ever, holding UFC records for most title defenses (four) and most title fight wins (five) at 155 pounds before moving up to beat Jack Della Maddalena for the welterweight belt this past November. This is his first defense of that title, and he’s said publicly that he doesn’t have much time left in the sport, framing this stretch as a legacy run. Dana White has echoed that sentiment, calling Makhachev’s trajectory the right path toward being remembered as the promotion’s greatest fighter.

Garry, at 17-1 with a 10-1 UFC mark, is finally getting his first crack at UFC gold. The 28-year-old Irishman brings serious physical tools to the cage — a 6-foot-3 frame with a 74-inch reach — and he’s built a style around using that length to control range, throwing 4.78 significant strikes per minute at 54% accuracy while defending at a 52% clip. He’s won three straight, including decision wins over Belal Muhammad and Carlos Prates, and his only loss came to Shavkat Rakhmonov in December 2024, a fight where he actually had Rakhmonov in a deep submission before ultimately dropping the decision. He’s called himself calmer and more confident than ever heading into this title shot.

The stylistic matchup is the real story here. Makhachev built his career on Dagestani wrestling and grinding grappling, and Garry’s only realistic path is keeping the fight standing and piling up volume from the outside. Analysts have pointed out this is the toughest style test Garry has faced since Rakhmonov, and the market’s lean toward Makhachev reflects how difficult it typically is to keep him off the mat.

The Rest of the Card Markets

Away from the main event, a lightweight bout between Jalin Turner and Kauê Fernandes has turned into a genuine coinflip on Polymarket — 50.5% to 49.5% — even though sportsbooks lean Turner at -162 to Fernandes’s +136, a gap worth watching if you like line value. Elsewhere on the card, Myktybek Orolbai is a heavy 90.5% favorite over Jeremiah Wells in the early prelims, and Donte Johnson sits at 73.5% over Eric McConico in a middleweight bout, both lining up closely with sportsbook pricing.

A Quiet Baseball Market Worth Watching

Outside the octagon, Polymarket traders are also active on the Washington Nationals and New York Mets total at Citi Field, currently sitting at 55.5% for the under on 8.5 runs. Nationals righty Brad Lord (5-2, sub-3.80 ERA) faces a Mets lineup anchored by a red-hot Francisco Lindor, who’s hitting .284 with 29 home runs and 91 RBI this season. Mets starter Sean Manaea has been sharp in his last outing too, tossing seven innings of one-run ball, which helps explain why the market is leaning under despite Lindor’s power threatening to push the total over.

Where the Smart Money Sits

Across every market on this card, the prediction markets are largely in agreement with sportsbooks, which is itself useful information — when Polymarket and the books line up this closely, it typically means there isn’t much public overreaction skewing the number. The one exception worth tracking closely is the main event gap between market pricing and projected fair value, which is exactly the kind of spread bettors look for when deciding whether an underdog price is worth a shot.