Allen vs. Duncan UFC Fight Night 290: Odds, picks and expert predictions

Duncan wants to keep this fight standing and use his reach to control distance
Allen's strength lies on the ground, setting up a strategic battle between striking and grappling.
Mark

So we've got two middleweights who are basically the same size but built completely differently for this fight. What's the actual edge here?

Mimi

Duncan's reach is the thing. Four inches doesn't sound like much until you're the guy trying to close that distance. If he can keep Allen at the end of his jab and avoid the takedown, his striking numbers suggest he should win rounds.

Luke

But Allen's takedown rate is real—1.52 per fight with over 40 percent accuracy. That's not theoretical. And Duncan's been taken down before. We don't know how he'll respond if Allen gets him down early.

Mark

Both of them seem to go to decisions a lot. Is that because they're defensive, or just because they're matched with similar-level guys?

Mimi

Probably both. Allen's gone the distance in five of his last six. Duncan in four of his last six. They're not finishers, either of them. That's why the distance bet at plus-money is interesting.

Luke

Though Allen does have that one knockout of de Ridder in round four last year. So he can finish. It's just rare. The question is whether Duncan's reach keeps him safe enough that Allen never gets the chance.

Mark

And if Duncan wins, how does he win?

Mimi

Decision, almost certainly. He's not a big knockout artist. Three of his five straight wins came by decision. If he keeps it standing for five rounds, the judges probably give it to him.

Luke

That's the bet they're offering at +450. But that assumes Duncan's discipline holds for 25 minutes against a guy whose whole game is built around closing distance and dragging him down.

  • The tension is structural: Allen's path to victory runs through the canvas, while Duncan's survival depends on staying upright and using four extra inches of reach to keep danger at arm's length.
  • Despite Allen's three-fight winning streak and submission threat, expert consensus tilts toward Duncan — his striking accuracy and volume giving him a meaningful edge if the fight remains on the feet.
  • The betting market is nearly deadlocked, with Duncan at -105 and Allen at -115, signaling that oddsmakers see no clear favorite and that any confident prediction carries real risk.
  • Both fighters have a strong habit of going the distance — Allen in five of his last six, Duncan in four — making the 'fight goes the distance' bet at +130 odds a quietly compelling value play.
  • The bout lands in a place of genuine uncertainty: a decision outcome feels probable, Duncan by decision at +450 represents the sharpest directional bet for those willing to commit to a narrative.

In the desert city where ambition is measured in rounds and reach, two middleweights of nearly equal standing meet Saturday night to settle a question the numbers alone cannot answer. Brendan Allen, a seasoned grappler with momentum, and Christian Leroy Duncan, a striker on a five-fight ascent, will contest the UFC Fight Night 290 main event in Las Vegas — a bout so evenly matched that the betting market barely separates them. What unfolds will likely be a chess match between a man who wants to drag the fight to the floor and one who needs to keep it standing, each strategy a mirror of the fighter's deepest strengths.

Brendan Allen and Christian Leroy Duncan meet Saturday in the main event of UFC Fight Night 290 at the Meta Apex in Las Vegas, a five-round middleweight contest that reads, on paper, as one of the more evenly matched headliners the promotion has offered in recent memory. The prelims begin at 5 p.m. ET, with the main card following at 8 p.m. ET on Paramount+.

Allen comes in at 27-7, having won three straight, most recently a unanimous decision over Edmen Shahbazyan in June. His last six fights have gone the distance five times, with his lone finish a fourth-round knockout of Reinier de Ridder in October 2025. Duncan, at 15-2, carries a five-fight winning streak that includes two knockouts and a decision over Roman Dolidze. His most recent outing was a unanimous decision over Jared Cannonier in July.

The physical picture favors Duncan in measurable ways: he holds a four-inch reach advantage and lands more strikes per minute with greater accuracy. Allen's edge lives on the ground — he averages more takedowns and submission attempts, and poses a persistent threat once the fight leaves the feet. The strategic tension is clean: Duncan needs to keep this upright, Allen needs to drag it down.

The moneyline sits nearly flat, with Allen at -115 and Duncan at -105. Expert lean goes to Duncan, contingent on his ability to avoid the mat. The most discussed secondary bet is the distance play at +130, given both men's recent history of going to the judges. For the more adventurous, Duncan by decision pays +450 — a 4.5-to-1 return if he navigates Allen's grappling and earns the nod. The over/under on rounds is 3.5, with the over priced at -120, suggesting oddsmakers expect a full and competitive fight.

Brendan Allen and Christian Leroy Duncan will square off Saturday night in the main event of UFC Fight Night 290 at the Meta Apex in Las Vegas, a five-round middleweight contest that shapes up as a genuine toss-up between two fighters operating at similar levels of the sport. The prelims start at 5 p.m. ET, with the main card kicking off at 8 p.m. ET on Paramount+.

Allen arrives with a 27-7 record and momentum on his side. He has won three straight, most recently taking a unanimous decision over Edmen Shahbazyan on June 6. Over his past six fights, he has gone the distance in five of them, winning three and losing two. His only finish in that stretch came in October 2025, when he knocked out Reinier de Ridder in the fourth round of a Fight Night main event. Duncan, by contrast, carries a 15-2 record and is riding a five-fight winning streak. He most recently defeated Jared Cannonier by unanimous decision on July 18, and his streak includes two knockout victories—one a first-round finish of Eryk Anders—along with a decision win over Roman Dolidze.

The physical matchup favors Duncan in certain measurable ways. Both men stand six feet two inches tall, but Duncan possesses a four-inch reach advantage. He also lands significantly more strikes per minute, averaging 4.45 compared to Allen's 3.75, and does so with greater accuracy: 63.95 percent versus Allen's 58.87 percent. Allen's strengths lie elsewhere. He is substantially more dangerous on the ground, averaging 1.52 takedowns per fight with a 41.07 percent success rate, and he poses a consistent submission threat, averaging 1.06 submission attempts per outing. The strategic calculus is clear: Duncan wants to keep this fight standing and use his reach to control distance, while Allen will look to drag the action to the canvas as quickly as possible.

The betting market reflects the closeness of the matchup. Allen sits at -115 on the moneyline, meaning a bettor must risk $115 to win $100, while Duncan is at -105, requiring a $105 bet to win $100. Expert analysis leans slightly toward Duncan, with the reasoning straightforward: if he can maintain an upright position and avoid extended periods on the mat, his striking advantage and reach should carry him through. The secondary bet that draws attention is the distance play. Allen has gone the full distance in five of his last six fights, and Duncan has needed the judges to decide four of his last six bouts. With the fight going the distance sitting at +130 odds, that represents value for bettors willing to bet that neither fighter will secure a finish. For those seeking higher odds, Duncan by decision or technical decision pays +450, offering a 4.5-to-1 return if the fight reaches a decision in his favor. The over/under on rounds is set at 3.5, with over at -120 and under at -110, suggesting oddsmakers expect this to be a competitive affair that could go either way in terms of pacing.

If Duncan can push Allen away, keep the fight upright, and avoid extended time on the mat, he'll be in good shape
— Expert analysis
Duncan by decision or technical decision at +450 odds offers a 4.5-to-1 return if the fight reaches a decision in his favor
— Betting analysis
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