Norma Dumont vs. Ailin Perez - UFC Fight Night: Rosas Jr. vs. Barcelos Results & AI Breakdown

Winner: Ailin Perez by Decision - Unanimous

Fight Info:
Location: Las Vegas, Nevada, USA
Elevation: 778.00m
Weight Class: Women's Bantamweight
Wikipedia: https://en.wikipedia.org…

The content below shows how the model reached its conclusion for the prediction. The higher the value of the number, the more confident the model is in the prediction. The confidence scores do not perfectly correlate with accuracy. Use your judgement to see where the model may have missed the mark.

The predictions below are shown in dark grey if they were correct, incorxrect predictions are shown in red.
Predictions
WT6 = WolfTickets 6 WT5 = WolfTickets 5 Bet Marginal Red = Incorrect
Fighter
WT6
WT5
WT6 EV
WT5 EV
52%
8
-5.1
11.7

Weighted Scoring Report

Weighted Score for WTAI Prediction

Predicted Winner: Ailin Perez

Weight Class: Women's Bantamweight

Final Confidence: 5.6

Confidence Adjustments

Value: -30.0%

Reason: Base confidence < 10, decreased by 30%

Fighter History & Outcomes

Norma Dumont

Weight Change: Staying at usual weight

Fight History:

  • April 25, 2026: Norma Dumont lost against Joselyne Edwards. The fight ended in round 3 at 5:00. It was a unanimous decision. Additional details: 28 - 29. 28 - 29. 27 - 30.
  • November 1, 2025: Norma Dumont won against Ketlen Vieira. The fight ended in round 3 at 5:00. It was a split decision. Additional details: 28 - 29. 29 - 28. 28 - 29.
  • September 14, 2024: Norma Dumont won against Irene Aldana. The fight ended in round 3 at 5:00. It was a unanimous decision. Additional details: 27 - 30. 27 - 30. 27 - 30.
  • April 6, 2024: Norma Dumont won against Germaine de Randamie. The fight ended in round 3 at 5:00. It was a unanimous decision. Additional details: 28 - 29. 28 - 29. 28 - 29.
  • July 15, 2023: Norma Dumont won against Chelsea Chandler. The fight ended in round 3 at 5:00. It was a unanimous decision. Additional details: 27 - 30. 27 - 30. 27 - 30.
  • April 22, 2023: Norma Dumont won against Karol Rosa. The fight ended in round 3 at 5:00. It was a unanimous decision. Additional details: 28 - 29. 28 - 29. 28 - 29.
  • September 10, 2022: Norma Dumont won against Danyelle Wolf. The fight ended in round 3 at 5:00. It was a unanimous decision. Additional details: 27 - 30. 27 - 30. 26 - 30.
  • May 7, 2022: Norma Dumont lost against Macy Chiasson. The fight ended in round 3 at 5:00. It was a split decision. Additional details: 27 - 30. 27 - 30. 29 - 28.
  • October 16, 2021: Norma Dumont won against Aspen Ladd. The fight ended in round 5 at 5:00. It was a unanimous decision. Additional details: 46 - 49. 46 - 49. 47 - 48.
  • May 22, 2021: Norma Dumont won against Felicia Spencer. The fight ended in round 3 at 5:00. It was a split decision. Additional details: 27 - 30. 29 - 28. 28 - 29.
  • November 28, 2020: Norma Dumont won against Ashlee Evans-Smith. The fight ended in round 3 at 5:00. It was a unanimous decision. Additional details: 26 - 30. 26 - 30. 26 - 30.
  • February 29, 2020: Norma Dumont lost against Megan Anderson. The fight ended in round 1 at 3:31. Method of victory: KO/TKO.
Ailin Perez

Weight Change: Staying at usual weight

Fight History:

  • February 28, 2026: Ailin Perez won against Macy Chiasson. The fight ended in round 3 at 5:00. It was a unanimous decision. Additional details: 28 - 29. 28 - 29. 28 - 29.
  • January 18, 2025: Ailin Perez won against Karol Rosa. The fight ended in round 3 at 5:00. It was a unanimous decision. Additional details: 28 - 29. 28 - 29. 27 - 30.
  • September 28, 2024: Ailin Perez won against Daria Zhelezniakova. The fight ended in round 1 at 3:52. Method of victory: Submission.
  • June 1, 2024: Ailin Perez won against Joselyne Edwards. The fight ended in round 3 at 5:00. It was a unanimous decision. Additional details: 27 - 30. 28 - 29. 28 - 29.
  • November 18, 2023: Ailin Perez won against Lucie Pudilova. The fight ended in round 3 at 5:00. It was a unanimous decision. Additional details: 27 - 29. 28 - 29. 28 - 29.
  • July 15, 2023: Ailin Perez won against Ashlee Evans-Smith. The fight ended in round 3 at 5:00. It was a unanimous decision. Additional details: 25 - 30. 25 - 30. 26 - 30.
  • September 3, 2022: Ailin Perez lost against Stephanie Egger. The fight ended in round 2 at 4:54. Method of victory: Submission.

Fight Analysis

Analysis: Norma Dumont vs Ailin Perez

WolfTicketsAI Predicts Ailin Perez to Win

Score: 8
Odds:
Norma Dumont: +115
Ailin Perez: -135

Norma Dumont's Breakdown

Dumont is a Sanda-based technician who wins by outpointing opponents at range and surviving grappling exchanges. She has never finished a fight in the UFC, and every one of her wins in the promotion has gone to the scorecards. But the tools that get her there are real.

Her signature weapons:

  • Leg kick to jab to right hand chain. Against Irene Aldana in September 2024, she circled left, prodded with the jab, and chopped the lead leg over and over. Aldana never checked a kick and never cut the ring, so Dumont tripled her usual output to roughly 160 strikes. It was target practice.
  • The overhand right off the counter. Against Danyelle Wolf at UFC 279, she dropped a decorated boxer multiple times in Round 2 with the right hand over the top, landing 52 of 110 significant strikes. She catches kicks and answers with the straight right, a habit she showed against Ashlee Evans-Smith in Round 2 as well.
  • Sanda clinch reversals and submission survival. Against Ketlen Vieira in November 2025, she got taken down in Rounds 1 and 2 but closed guard, "answered the phone" to defend an arm-triangle, and survived. She then bloodied Vieira with a Round 3 pressure surge to steal a controversial split.

Her recent evolution is mixed. She showed more urgency and pressure against Wolf and Vieira, but that Vieira win was scored for her opponent by 6 of 7 media outlets. And she is coming off a unanimous decision loss to Joselyne Edwards in April 2026. So her last two outings tell you the range game is starting to sputter against opponents who force phases she does not want.

Norma Dumont's Technical Vulnerabilities

  • Takedown defense against dedicated wrestlers. This is the whole fight. Her takedown defense ratio sits at just 39 percent. Vieira put her down in Rounds 1 and 2. Chiasson landed 6 of 12 takedowns with 7:34 of control time in the 2022 loss. Once grounded, Dumont closes guard and survives but does nothing off her back, and judges reward the control.
  • No answer to cage stalling and clinch grind. Against Chiasson she spent most of Round 2 pinned to the fence with her back to the cage, unable to create separation. Vieira tied her up for half of Round 3. She has no offensive clinch counter to a wrestler leaning on her.
  • Susceptible to power when static. Karol Rosa sat her down with a right hand in Round 3 in 2023 because Dumont fights flat-footed with almost no head movement. Megan Anderson flatlined her in 2020 with a single right hand after a clinch break. When she stands in the pocket without lateral movement, she gets caught.

Ailin Perez's Breakdown

Perez is exactly the profile that has ruined Dumont before: a strong, high-volume wrestler who chains grappling and pressure. She owns the two best recent wins in this matchup, and her takedown numbers dwarf anyone Dumont has faced.

Her signature weapons:

  • Relentless takedown volume. Perez attempts nearly 10 takedowns per fight, landing 4.9. Recent numbers climb to 11.1 attempts and 5.4 landed per fight. That is a wrestling engine no one on Dumont's resume matches, not even Chiasson.
  • Clinch to takedown to top control chain. Against Lucie Pudilova she used forward pressure into the clinch, dumped her, and rode mount for ground-and-pound in the first two rounds. Against Joselyne Edwards in June 2024, she muscled Edwards down repeatedly and worked arm-triangle setups from guard, half-guard, and side control.
  • Submission threat from top. She finished Daria Zhelezniakova by arm-triangle in September 2024, a submission she drilled specifically. She is deceptively strong for the weight and finishes from dominant position, something Dumont has never had to worry about from prior opponents.

Her evolution is upward. She has won five straight, including a unanimous nod over Macy Chiasson in February 2026, the same Chiasson who wrestled Dumont to a decision loss. Her recent win percentage is a perfect 1.00. That trajectory is the opposite of Dumont's.

Ailin Perez's Technical Vulnerabilities

  • Cardio dips in Round 3. Against Pudilova she faded in the third and gave up offense after banking the first two rounds. If she cannot finish early, the championship-style late surge is where Dumont historically finds her moments, like the Round 3 rallies against Vieira and Evans-Smith.
  • Submission exposure when she overreaches on the back. She lost to Stephanie Egger in 2022 by rear-naked choke after attacking from Egger's back and getting reversed. She is not immune to giving up position when hunting a finish.
  • Hittable on entries. Her striking defense percentage is low at 36 percent. She eats shots coming in, as she did against Edwards who cracked her with a spinning back fist. Dumont's counter right over the top is exactly the punch that could greet a sloppy level change.

Style Matchup Dynamics

This is a classic striker-versus-wrestler puzzle, and the wrestler holds the keys.

Perez's path is obvious and proven. She does what Chiasson and Vieira did, only more. Chiasson's 6 takedowns and cage control beat Dumont in 2022. Vieira's takedowns nearly beat her in 2025 and should have on most cards. Perez attempts nearly double the takedown volume of either. She will pressure Dumont to the fence, chain entries, and grind top control. Dumont's 39 percent takedown defense against that volume spells trouble.

Dumont's path exists but is narrow. If she keeps this at range and circles, her leg kick to jab to overhand right can pile up damage the way it did against Aldana and Wolf. Her best chance is timing Perez's entries with the counter right, the same punch that dropped Wolf and stung Evans-Smith, and exploiting Perez's 36 percent striking defense. But Perez does not stand in front of you like Aldana did. She closes distance to grapple, which removes the space Dumont needs.

The historical lesson is clear. When Dumont meets a committed wrestler who can eat a few shots to get inside, she loses the rounds on control. When she meets a passive striker who lets her circle, she dominates. Perez is firmly the former.

Fight Phase Analysis

  • Early rounds: Expect Perez to press forward and shoot. Dumont may land clean counters early, like she did on Wolf and Anderson before the clinch, but Perez's volume means she gets a takedown in and starts banking control time.
  • Mid-fight: If Perez establishes top position in Rounds 1 and 2, Dumont is forced to survive from guard, exactly the pattern from the Vieira and Chiasson fights. She defends submissions well but generates nothing off her back, so she bleeds rounds.
  • Championship rounds: This is a three-rounder, so Round 3 is the swing. Perez has faded late before against Pudilova, and Dumont's late urgency against Vieira and Evans-Smith shows she can steal a final round. But if Perez is up two rounds on control, a single Dumont surge will not be enough on the cards.

Analysis and Key Points

  • Wrestling volume decides it. Perez attempts nearly 10 takedowns per fight. No opponent Dumont has beaten comes close. Chiasson beat Dumont with far less.
  • Dumont's 39 percent takedown defense is the fatal flaw. Vieira and Chiasson exposed it. Perez is a bigger, busier version.
  • The Chiasson tell. Chiasson beat Dumont in 2022. Perez beat Chiasson in February 2026. The transitive read favors Perez heavily.
  • Dumont's counter right is her one real threat. It dropped Wolf and stung Evans-Smith, and Perez's 36 percent striking defense leaves her hittable on entries.
  • Cardio caveat for Perez. She dipped against Pudilova in Round 3 and got submitted by Egger off her own back, so a late Dumont rally is not impossible.

Understanding the Prediction

The model landed on Perez at a confidence of 8, and the SHAP features explain the swing.

  • recent_win_perc pushed the score down by 3, reflecting Dumont's recent path including the Edwards loss weighed against Perez.
  • win_streak_diff dropped it by 2, capturing streak dynamics between the two.
  • odds nudged the score up by 1, aligning with Perez as the betting favorite at -135.
  • recent_significant_striking_impact_differential, striking_impact_differential, average_striking_output_differential, and recent_average_striking_output_differential each added 1, crediting the striking differentials in the model's read.
  • trueskill subtracted 1, unsurprising given Dumont's higher Mu (32.1 vs 20.1), though Perez carries a much larger Sigma of 6.7, meaning more uncertainty in her rating.
  • recent_takedowns_attempted_per_fight and recent_significant_striking_output_differential each subtracted 1.

The net still points firmly to Perez, driven by recent form, streak, and the betting line.

Past Model Performance

The model has a strong but imperfect record here. On Perez it went 4 for 5, correct on the Chiasson, Edwards, Pudilova, and Evans-Smith calls, missing only the Karol Rosa fight. On Dumont it hit the Vieira, Aldana, de Randamie, and Chandler wins but missed the recent Edwards loss and the earlier Chiasson loss. The pattern is worth noting: the model's Dumont misses both came against wrestlers and pressure fighters, exactly the archetype Perez represents. That is a vote of confidence in siding against Dumont here.

Conclusion

Every wrestler who committed to putting Dumont on her back has given her serious problems, and Perez is the most prolific wrestler she has ever faced. She attempts nearly ten takedowns a fight, she beat the same Chiasson who beat Dumont, and she is riding a perfect recent run. Dumont's counter right and late-round urgency keep this live, but the math and the tape both point one way. WolfTicketsAI is firmly on Ailin Perez.

Stat Breakdown

Stat Norma Dumont Ailin Perez
Main Stats
Age 35 31
Height 67" 65"
Reach 67" 66"
Win Percentage 81.25% 86.67%
Wins 13 14
Losses 4 2
Wins at Weight Class 4 6
Losses at Weight Class 1 0
Striking Stats
Striking Accuracy 59.32% 67.34%
Significant Striking Accuracy 50.96% 56.26%
Strikes Landed Per Minute 5.831 5.971
Significant Strikes Landed Per Minute 3.848 2.884
Knockdowns per Fight 0.168 0.169
Striking Impact Differential 6.33% 18.00%
Significant Striking Impact Differential 22.58% 16.57%
Striking Output Differential -2.25% 21.57%
Significant Striking Output Differential 15.17% 19.00%
Striking Defense to Offense Ratio 78.48% 43.77%
Significant Striking Defense to Offense Ratio 109.17% 71.09%
Striking Defense Percentage 64.32% 56.52%
Takedown and Submission Stats
Submissions per Fight 0.000 0.169
Takedowns per Fight 1.428 4.901
Takedowns Attempted per Fight 2.605 9.970
Takedown Defense 39.13% 37.50%
Takedown Accuracy 54.84% 49.15%
Head Stats
Head Strikes Landed per Minute 2.314 1.701
Head Strikes Attempted per Minute 5.641 3.436
Head Strikes Absorbed per Minute 1.210 0.732
Body Stats
Body Strikes Landed per Minute 0.846 0.631
Body Strikes Attempted per Minute 1.070 0.901
Body Strikes Absorbed per Minute 0.667 0.349
Leg Stats
Leg Strikes Landed per Minute 0.689 0.552
Leg kicks Attempted per Minute 0.840 0.789
Leg kicks Absorbed per Minute 0.454 0.496
Clinch Stats
Clinch Strikes Landed per Minute 0.504 0.496
Clinch Strikes Attempted per Minute 0.616 0.676
Clinch Strikes Absorbed per Minute 0.359 0.259
Norma Dumont History:
Date Weight Red Corner Blue Corner Winner
April 25, 2026 Women's Bantamweight Norma Dumont Joselyne Edwards Joselyne Edwards
Nov. 1, 2025 Women's Bantamweight Ketlen Vieira Norma Dumont Norma Dumont
Sept. 14, 2024 Women's Bantamweight Irene Aldana Norma Dumont Norma Dumont
April 6, 2024 Women's Bantamweight Norma Dumont Germaine de Randamie Norma Dumont
July 15, 2023 Women's Featherweight Norma Dumont Chelsea Chandler Norma Dumont
April 22, 2023 Women's Featherweight Karol Rosa Norma Dumont Norma Dumont
Sept. 10, 2022 Women's Featherweight Norma Dumont Danyelle Wolf Norma Dumont
May 7, 2022 Women's Featherweight Macy Chiasson Norma Dumont Macy Chiasson
Oct. 16, 2021 Women's Featherweight Aspen Ladd Norma Dumont Norma Dumont
May 22, 2021 Women's Featherweight Felicia Spencer Norma Dumont Norma Dumont
Nov. 28, 2020 Women's Bantamweight Ashlee Evans-Smith Norma Dumont Norma Dumont
Feb. 29, 2020 Women's Featherweight Megan Anderson Norma Dumont Megan Anderson
Ailin Perez History:
Date Weight Red Corner Blue Corner Winner
Feb. 28, 2026 Women's Bantamweight Ailin Perez Macy Chiasson Ailin Perez
Jan. 18, 2025 Women's Bantamweight Karol Rosa Ailin Perez Ailin Perez
Sept. 28, 2024 Women's Bantamweight Ailin Perez Daria Zhelezniakova Ailin Perez
June 1, 2024 Women's Bantamweight Ailin Perez Joselyne Edwards Ailin Perez
Nov. 18, 2023 Women's Bantamweight Lucie Pudilova Ailin Perez Ailin Perez
July 15, 2023 Women's Bantamweight Ashlee Evans-Smith Ailin Perez Ailin Perez
Sept. 3, 2022 Women's Featherweight Stephanie Egger Ailin Perez Stephanie Egger