Casey O'Neill vs. Gabriella Fernandes - UFC Fight Night: Adesanya vs. Pyfer Results & AI Breakdown

Winner: Casey O'Neill by KO/TKO

Fight Info:
Location: Seattle, Washington, USA
Elevation: 53.00m
Weight Class: Women's Flyweight
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
55%
4
+18.7
13.7

Weighted Scoring Report

Weighted Score for WTAI Prediction

Predicted Winner: Casey O'Neill

Weight Class: Women's Flyweight

Final Confidence: 2.8

Confidence Adjustments

Value: -30.0%

Reason: Base confidence < 10, decreased by 30%

Fighter History & Outcomes

Casey O'Neill

Weight Change: Staying at usual weight

Fight History:

  • August 17, 2024: Casey O'Neill won against Luana Santos. The fight ended in round 3 at 5:00. It was a unanimous decision. Additional details: 27 - 30. 27 - 30. 26 - 30.
  • December 16, 2023: Casey O'Neill lost against Ariane da Silva. The fight ended in round 2 at 1:18. Method of victory: Submission.
  • March 18, 2023: Casey O'Neill lost against Jennifer Maia. The fight ended in round 3 at 5:00. It was a unanimous decision. Additional details: 27 - 30. 28 - 29. 28 - 29.
  • February 12, 2022: Casey O'Neill won against Roxanne Modafferi. The fight ended in round 3 at 5:00. It was a split decision. Additional details: 28 - 29. 29 - 28. 28 - 29.
  • October 2, 2021: Casey O'Neill won against Antonina Shevchenko. The fight ended in round 2 at 4:47. Method of victory: KO/TKO.
  • June 19, 2021: Casey O'Neill won against Lara Procopio. The fight ended in round 3 at 2:54. Method of victory: Submission.
  • February 20, 2021: Casey O'Neill won against Shana Dobson. The fight ended in round 2 at 3:41. Method of victory: KO/TKO.
Gabriella Fernandes

Weight Change: Staying at usual weight

Fight History:

  • August 9, 2025: Gabriella Fernandes won against Julija Stoliarenko. The fight ended in round 3 at 5:00. It was a unanimous decision. Additional details: 27 - 30. 28 - 29. 28 - 29.
  • November 23, 2024: Gabriella Fernandes won against Wang Cong. The fight ended in round 2 at 3:49. Method of victory: Submission.
  • June 15, 2024: Gabriella Fernandes won against Carli Judice. The fight ended in round 3 at 5:00. It was a split decision. Additional details: 28 - 29. 29 - 28. 28 - 29.
  • June 17, 2023: Gabriella Fernandes lost against Tereza Bleda. The fight ended in round 3 at 5:00. It was a unanimous decision. Additional details: 27 - 30. 27 - 30. 27 - 30.
  • February 25, 2023: Gabriella Fernandes lost against Jasmine Jasudavicius. The fight ended in round 3 at 5:00. It was a unanimous decision. Additional details: 26 - 30. 26 - 30. 26 - 30.

Fight Analysis

Analysis: Casey O'Neill vs Gabriella Fernandes

WolfTicketsAI Predicts Casey O'Neill to Win

Score: 4
Odds:
Casey O'Neill: +115
Gabriella Fernandes: -135

Casey O'Neill's Breakdown

Casey O'Neill brings a pressure-heavy, grappling-centric style to this matchup. Her best work comes when she can close distance, establish clinch control, and drag opponents to the mat where her ground-and-pound becomes suffocating. Against Antonina Shevchenko at UFC Vegas 38, she demonstrated this perfectly. After a slow first round where she admitted to looking "like a video game character that doesn't know their buttons," O'Neill adjusted in round two. She faked an overhand to set up a double leg with a leg ride, secured half-guard, and proceeded to land 102 strikes from top position compared to Shevchenko's 20. The finish came via brutal "Donkey Kong style" hammer fists from mount.

Her signature techniques include:

Clinch-to-takedown sequences: O'Neill uses an underhook combined with a thigh grip to initiate reverse table takedowns. Against Shevchenko, she caught a lazy kick and converted it into an ankle pick. Against Lara Procopio, she worked from body lock positions to inside trips.

Relentless ground-and-pound from mount: Once she achieves top position, O'Neill becomes a nightmare. She uses heavy elbows from half-guard and hammer fists from mount. Against Procopio, a BJJ black belt, she secured a rear crucifix position and battered her opponent before finishing with a rear-naked choke.

Cage cutting and forward pressure: From the opening seconds against Shevchenko, O'Neill demonstrated excellent ability to stalk and back opponents to the fence, preventing them from establishing their preferred range.

Her recent return against Luana Santos at UFC 305 resulted in a unanimous decision win, snapping a two-fight losing skid. While detailed technical analysis of that fight is limited, the victory suggests she's found her footing again after ACL recovery issues plagued her 2023 performances.

Casey O'Neill's Technical Vulnerabilities

Counter-striking defense when pressuring forward: O'Neill's aggressive forward movement creates openings for counter-punchers. Against Jennifer Maia at UFC 286, she was consistently caught by Maia's counter punches, particularly the right hand and lead uppercut, as she came forward. Maia bloodied O'Neill's nose and outpointed her over three rounds. O'Neill walked into shots repeatedly, unable to get past what she described as "a wall of counters."

Recovery and adaptation when hurt early: Against Ariane Lipski at UFC 296, O'Neill was caught with a damaging shot early in round one and admitted to fighting on "autopilot" for the remainder of the bout. She couldn't mentally reset or pivot to her grappling strengths when in danger. Lipski dropped her with a hard right hand at the start of round two and finished with an armbar at 1:18.

Submission defense from compromised positions: When taken down following the knockdown against Lipski, O'Neill was unable to prevent the armbar despite attempting to defend. Her arm was hyperextended before she tapped. This represents a concerning vulnerability when she's hurt and ends up on her back.

Gabriella Fernandes's Breakdown

Gabriella Fernandes is riding momentum after pulling off one of the biggest upsets in recent UFC history. At UFC Fight Night 248, she entered as a +750 underdog against the heavily promoted Wang Cong and finished her via rear-naked choke in round two. The sequence was technically impressive. After absorbing body kicks and side kicks from Wang early, Fernandes landed a clean head kick to the temple that dropped the previously undefeated prospect. She immediately secured back control and applied the choke until Wang went unconscious.

Her signature techniques include:

Counter left overhand across defensive guards: When opponents attempt jabs or straight punches, Fernandes throws an overhand left that travels over their extended arm. Against Carli Judice, she landed this cleanly approximately 90 seconds into the first round when Judice attempted to slip inside.

Double collar tie with knees and elbows: Fernandes excels at flashing her jab as opponents close distance, then immediately transitioning to a head grab. Against Judice, when her opponent attempted to slip inside her jab, Fernandes captured her head and delivered impactful knees to the body and sharp elbows.

Timed uppercuts against forward pressure: Fernandes demonstrates excellent distance management, often giving ground strategically to bait opponents forward, then uncorking perfectly timed right uppercuts. Against Judice, she landed a clean uppercut through the middle of Judice's guard during a defensive attempt.

Her recent form shows three consecutive wins after starting her UFC career 1-2. The Wang Cong upset demonstrated that Fernandes can finish fights when opportunities present themselves, and her technical striking has clearly evolved.

Gabriella Fernandes's Technical Vulnerabilities

Defensive gaps during forward pressure: When Fernandes pressures forward, she tends to extend her lead hand without properly connecting her chin to her shoulder. This creates a defensive gap that leaves her exposed to counter strikes, particularly hooks and straight punches. Against Jasmine Jasudavicius, this vulnerability allowed Jasudavicius to time her entries for takedowns.

Takedown defense against persistent wrestlers: Against Jasudavicius, Fernandes struggled with sustained wrestling pressure. While her initial takedown defense with sprawls and intercepting knees was effective, Jasudavicius adapted by feinting strikes to set up takedowns and successfully got the fight to the ground multiple times. Fernandes's 45% takedown defense ratio reflects this weakness.

Guard retention issues when fatigued: On the ground against Jasudavicius, Fernandes showed a tendency to open her guard prematurely, allowing her opponent to progress to half-guard and dominant positions. Her volume and technical execution also dropped significantly in later rounds, with previously crisp combinations deteriorating into single shots.

Style Matchup Dynamics

This fight presents a classic striker vs grappler dynamic, but with nuance. O'Neill's forward pressure and clinch work could exploit Fernandes's documented defensive gaps when pressuring forward. When Fernandes extends her lead hand without proper chin-to-shoulder connection, O'Neill's ability to capture the head and initiate clinch sequences becomes dangerous.

O'Neill's takedown game should find success here. Fernandes has shown vulnerability to persistent wrestling, and O'Neill's 4.17 takedowns attempted per fight represents significant volume. Against Jasudavicius, Fernandes struggled when her opponent disguised takedown entries with striking feints. O'Neill's fake overhand to double leg sequence that worked against Shevchenko could be particularly effective.

However, Fernandes's counter left overhand and timed uppercuts present real danger to O'Neill's forward-marching style. O'Neill has historically walked into counters, as Maia demonstrated. If Fernandes can time O'Neill's entries and land clean shots early, she could put O'Neill on "autopilot" as Lipski did.

The ground game favors O'Neill significantly. Her ground-and-pound from mount is elite, and Fernandes's guard retention issues when fatigued could be exploited. If O'Neill can get this fight to the mat and maintain top position, she has the tools to finish.

Fight Phase Analysis

Early rounds: Expect O'Neill to push forward immediately, looking to establish clinch control and test Fernandes's takedown defense. Fernandes will likely attempt to maintain distance with her jab and look for counter opportunities. The first five minutes will determine whether O'Neill can implement her wrestling or whether Fernandes can keep this at range and land clean counters.

Mid-fight adjustments: If O'Neill succeeds with early takedowns, Fernandes's conditioning becomes a factor. Her volume drop-off in later rounds against Jasudavicius was notable. Conversely, if Fernandes can stuff takedowns and land significant strikes, O'Neill's history of struggling when hurt early becomes relevant.

Championship rounds (if applicable): This is a three-round fight, but the third round could be decisive. O'Neill's cardio and pressure have historically allowed her to maintain pace, while Fernandes's technical execution deteriorates when fatigued. If the fight is competitive entering round three, O'Neill's conditioning advantage should manifest.

Analysis and Key Points

  • O'Neill's striking differentials are significant: Her significant striking impact differential of +26.4 compared to Fernandes's -22.4 suggests she lands cleaner, more damaging shots while absorbing less damage. This is a meaningful gap.

  • Fernandes's recent win streak is impressive but context matters: The Wang Cong upset was spectacular, but Wang was a relatively inexperienced fighter. O'Neill has faced tougher competition throughout her career.

  • O'Neill's ACL recovery concerns may be behind her: The Santos win suggests she's moving better. Her two losses to Maia and Lipski came during her recovery period when she admitted her knee "wasn't 100%."

  • Takedown defense will be critical: Fernandes's 45% takedown defense against O'Neill's persistent wrestling attempts could be the deciding factor. If O'Neill can get this fight to the mat repeatedly, her path to victory becomes clear.

  • Warning: O'Neill was submitted by Lipski in December 2023. While this was after being hurt on the feet, it's worth noting that Fernandes has submission capabilities, as demonstrated against Wang Cong.

Understanding the Prediction

The model's prediction is driven heavily by striking metrics that favor O'Neill:

  • Significant Striking Impact Differential increased the prediction score by 7 points. O'Neill's +26.4 compared to Fernandes's -22.4 represents a massive gap in effective striking.

  • Recent Significant Striking Impact Differential added 5 points. O'Neill's recent striking effectiveness remains strong.

  • Striking Impact Differential contributed 4 points. O'Neill consistently lands harder and cleaner than her opponents.

  • TrueSkill decreased the score by 3 points. O'Neill's TrueSkill rating (30.9 mu) is higher than Fernandes's (20.3 mu), but the model may be accounting for uncertainty.

  • Odds decreased the score by 2 points. O'Neill being the underdog at +115 suggests the betting market sees this as close.

  • Recent Win Percentage decreased the score by 2 points. O'Neill's 33% recent win rate (1-2 in last 3) compared to Fernandes's 100% (3-0) is a concern.

  • Reach added 1 point. O'Neill's 69-inch reach versus Fernandes's 66 inches provides a slight advantage.

Past Model Performance

WolfTicketsAI has a mixed record with O'Neill. The model correctly predicted her split decision win over Roxanne Modafferi but was wrong on her losses to Maia and Lipski, and incorrectly picked against her in the Santos fight. That's a 1-3 record on O'Neill predictions.

For Fernandes, the model correctly predicted her loss to Tereza Bleda and her win over Julija Stoliarenko. That's 2-0 on Fernandes predictions.

The model's struggles with O'Neill predictions warrant caution. However, the striking differential metrics that drive this prediction are significant and measurable advantages that should translate regardless of past prediction accuracy.

Conclusion

O'Neill's superior striking impact, relentless pressure, and grappling advantages make her the right pick here. Fernandes has shown vulnerability to persistent wrestling, and O'Neill's ability to drag fights to the mat and punish opponents with ground-and-pound should prove decisive. While Fernandes carries knockout power and could catch O'Neill coming in, the path to victory is clearer for O'Neill. Expect her to close distance, secure takedowns, and grind out a decision or finish from top position. WolfTicketsAI has O'Neill winning this fight.

Stat Breakdown

Stat Casey O'Neill Gabriella Fernandes
Main Stats
Age 28 32
Height 66" 66"
Reach 69" 66"
Win Percentage 83.33% 78.57%
Wins 11 11
Losses 2 4
Wins at Weight Class 5 3
Losses at Weight Class 2 2
Striking Stats
Striking Accuracy 59.29% 52.77%
Significant Striking Accuracy 52.97% 48.04%
Strikes Landed Per Minute 11.468 4.432
Significant Strikes Landed Per Minute 7.887 3.560
Knockdowns per Fight 0.000 0.218
Striking Impact Differential 50.86% -64.60%
Significant Striking Impact Differential 26.43% -22.40%
Striking Output Differential 52.86% -99.40%
Significant Striking Output Differential 20.57% -47.60%
Striking Defense to Offense Ratio 67.19% 146.56%
Significant Striking Defense to Offense Ratio 95.09% 159.59%
Striking Defense Percentage 57.04% 52.27%
Takedown and Submission Stats
Submissions per Fight 0.726 0.218
Takedowns per Fight 1.452 0.436
Takedowns Attempted per Fight 4.173 2.398
Takedown Defense 42.86% 45.00%
Takedown Accuracy 34.78% 18.18%
Head Stats
Head Strikes Landed per Minute 6.085 2.340
Head Strikes Attempted per Minute 12.750 5.958
Head Strikes Absorbed per Minute 4.234 3.023
Body Stats
Body Strikes Landed per Minute 1.101 0.741
Body Strikes Attempted per Minute 1.391 0.886
Body Strikes Absorbed per Minute 1.028 1.322
Leg Stats
Leg Strikes Landed per Minute 0.702 0.480
Leg kicks Attempted per Minute 0.750 0.567
Leg kicks Absorbed per Minute 0.387 0.843
Clinch Stats
Clinch Strikes Landed per Minute 0.375 0.392
Clinch Strikes Attempted per Minute 0.496 0.567
Clinch Strikes Absorbed per Minute 0.762 0.480
Casey O'Neill History:
Date Weight Red Corner Blue Corner Winner
Aug. 17, 2024 Women's Flyweight Casey O'Neill Luana Santos Casey O'Neill
Dec. 16, 2023 Women's Flyweight Casey O'Neill Ariane da Silva Ariane da Silva
March 18, 2023 Women's Flyweight Jennifer Maia Casey O'Neill Jennifer Maia
Feb. 12, 2022 Women's Flyweight Roxanne Modafferi Casey O'Neill Casey O'Neill
Oct. 2, 2021 Women's Flyweight Antonina Shevchenko Casey O'Neill Casey O'Neill
June 19, 2021 Women's Flyweight Casey O'Neill Lara Procopio Casey O'Neill
Feb. 20, 2021 Women's Flyweight Shana Dobson Casey O'Neill Casey O'Neill
Gabriella Fernandes History:
Date Weight Red Corner Blue Corner Winner
Aug. 9, 2025 Women's Flyweight Gabriella Fernandes Julija Stoliarenko Gabriella Fernandes
Nov. 23, 2024 Women's Flyweight Wang Cong Gabriella Fernandes Gabriella Fernandes
June 15, 2024 Women's Flyweight Carli Judice Gabriella Fernandes Gabriella Fernandes
June 17, 2023 Women's Flyweight Tereza Bleda Gabriella Fernandes Tereza Bleda
Feb. 25, 2023 Women's Flyweight Jasmine Jasudavicius Gabriella Fernandes Jasmine Jasudavicius