UFC 330 Odds Breakdown: Polymarket vs. Sportsbooks on Islam Makhachev vs. Ian Machado Garry
Polymarket has Makhachev at 76.5% and books have him even shorter at -340 to -370 — we break down the data gap and what it means for bettors.
Prediction markets and sportsbooks are lining up almost perfectly behind Islam Makhachev heading into UFC 330, but the gap between the two pricing models tells a story worth digging into. On Polymarket, Makhachev is trading at 76.5% implied probability to retain his welterweight title against Ian Machado Garry, while DraftKings and FanDuel have him priced even shorter, between -340 and -370, which works out to roughly 77-79% implied. That’s real separation from analytics models, and it’s the kind of gap that data-driven bettors live for.
Where the Numbers and the Books Disagree
Action Network’s own projection system pegs Makhachev as just under a 70% favorite, which translates to roughly -221 in fair-value odds. That’s a meaningful gap from the -340 to -370 the retail books are posting, and it’s exactly the kind of split that shows up when public perception of a dominant champion runs ahead of what the underlying model actually supports. Garry, priced at +255 to +275 by sportsbooks and sitting at 23.5% on Polymarket, is being treated by some handicappers as a live underdog worth a second look rather than a lock to lose.
That kind of divergence is exactly why more bettors are comparing prediction market odds against traditional sportsbooks before placing a wager. The volume behind this line is substantial. Polymarket has processed $1,079,058 in 24-hour volume on the Makhachev-Garry market alone, with $1,731,624 traded total and $217,633 in liquidity sitting on the book. That’s a market with real depth, not a thin line getting pushed around by a handful of large bets. For context, the next-biggest UFC 330 market — Jalin Turner vs. Kauê Fernandes — has done $187,362 in 24-hour volume, showing just how much of the card’s total betting interest is concentrated in the main event alone.
The Case Behind the Favorite
Makhachev enters at 28-1 overall and 17-1 in the UFC, riding a 16-fight win streak that’s currently tied with Anderson Silva for the longest active or historical run in UFC history. A win Saturday doesn’t just retain the belt — it sets an outright new UFC record at 17 straight victories. He already owns the lightweight division’s records for most title defenses (4), most title fight wins (5), and longest win streak, and he moved up to welterweight in November 2025 by beating Jack Della Maddalena via unanimous decision. This is his first defense of that 170-pound title.
His only professional loss came in 2015, over a decade ago, and he hasn’t tasted defeat since. At 34 years old, with reach of 70.5 inches and a southpaw wrestling-heavy style out of Eagles MMA and AKA, Makhachev has built his run on suffocating grappling exchanges that neutralize output-based strikers. That’s precisely the profile analysts flag as the biggest variable in this matchup.
Why the Model Sees More Value in Garry Than the Books Suggest
Garry, 17-1 overall and 10-1 in the UFC, brings a genuinely different toolkit than most Makhachev opponents. At 6’3″ with a 74-inch reach, he’s built to keep distance and win rounds on volume and length rather than engage in exchanges. His numbers back that up: 4.78 significant strikes landed per minute at 54% accuracy, with 52% striking defense. His last three wins came against Belal Muhammad, Carlos Prates, and Michael Page — a credible run that earned him this title shot.
His lone loss, to Shavkat Rakhmonov in December 2024, is instructive for handicappers rather than disqualifying. Garry had Rakhmonov in a deep submission attempt late in that fight before it slipped away on the scorecards, showing he can survive adversity against elite grapplers and still generate offense. That data point is part of why some models see more separation between the sportsbook price and the true probability than the -340 to -370 line implies. Makhachev-by-decision is being floated at +130 in some shops as the value angle for bettors who like the champion but want better odds than the moneyline offers, since Garry has never been finished in his career.
The Rest of the UFC 330 Board
Down the card, Polymarket has Jeremiah Wells at just 9.5% against Myktybek Orolbai’s 90.5%, matching a sportsbook line of Wells +650 to Orolbai -1000 — one of the more lopsided markets on the entire card. Eric McConico sits at 26.5% against Donte Johnson’s 73.5%, with books at McConico +190/+195 and Johnson -230/-260. The Turner-Fernandes lightweight bout is the rare true coinflip on this card, with Polymarket splitting it 50.5-49.5 and DraftKings pricing Turner at -162 to Fernandes’ +136 — tight enough that either side carries value depending on how a bettor reads the stylistic matchup.
A Baseball Total Worth Watching Too
Away from the octagon, Polymarket traders are leaning under in the Washington Nationals-New York Mets total of 8.5, pricing the under at 55.5% to the over’s 44.5% on $105,128 in volume. Both clubs sit under .500 on the season, and the pitching matchup supports the lean: Mets lefty Sean Manaea carries a 4.13 ERA and 3.03 K/BB ratio into the start after a strong seven-inning outing against Pittsburgh, while Washington’s Brad Lord has been effective in a limited role at 3.79 ERA and 1.18 WHIP, though his last outing was cut short at just 2.2 innings. Mets shortstop Francisco Lindor remains the offensive wild card in this one, hitting .284 with 29 home runs and 91 RBI on the year, giving the over some late-game punch if the starters fade early.
What the Data Says Heading Into Fight Night
The through-line across every market here is that public perception and quantitative projection aren’t fully aligned. Makhachev remains the right side to build a card around, but the gap between Action Network’s roughly -221 fair value and the sportsbook’s -340 to -370 suggests the betting public is pricing in even more certainty than the numbers strictly support. For bettors comparing prediction markets against traditional books, that spread between Polymarket’s 76.5% and the shorter sportsbook price is worth tracking as the week’s volume builds toward Saturday night in Philadelphia.