Julian Erosa vs. Melquizael Costa - UFC Fight Night: Burns vs. Morales Results & AI Breakdown

Winner: Melquizael Costa by Decision - Unanimous

Fight Info:
Location: Las Vegas, Nevada, USA
Elevation: 777.00m
Weight Class: Featherweight
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
W = WTAI Model O = Profit Model P = Plain Model EV = Expected Value
Fighter
Confidence
EV
Odds
W
O
P
Julian Erosa
1
1
+146
Melquizael Costa
15
9.9
-188

Weighted Scoring Report

Weighted Score for WTAI Prediction

Predicted Winner: Melquizael Costa

Weight Class: Featherweight

Final Confidence: 18.0

Confidence Adjustments

Value: +20.0%

Reason: Base confidence between 14 and 21, increased by 20%

Fighter History & Outcomes

Julian Erosa

Weight Change: Staying at usual weight

Fight History:

  • April 12, 2025: Julian Erosa won against Darren Elkins. The fight ended in round 1 at 4:15. Method of victory: KO/TKO.
  • July 13, 2024: Julian Erosa won against Christian Rodriguez. The fight ended in round 1 at 4:49. Method of victory: Submission.
  • March 23, 2024: Julian Erosa won against Ricardo Ramos. The fight ended in round 1 at 2:15. Method of victory: Submission.
  • April 29, 2023: Julian Erosa lost against Fernando Padilla. The fight ended in round 1 at 1:41. Method of victory: KO/TKO.
  • December 17, 2022: Julian Erosa lost against Alex Caceres. The fight ended in round 1 at 3:04. Method of victory: KO/TKO.
  • September 10, 2022: Julian Erosa won against Hakeem Dawodu. The fight ended in round 3 at 5:00. It was a unanimous decision. Additional details: 27 - 30. 27 - 30. 27 - 30.
  • February 5, 2022: Julian Erosa won against Steven Peterson. The fight ended in round 3 at 5:00. It was a split decision. Additional details: 28 - 29. 29 - 28. 28 - 29.
  • September 4, 2021: Julian Erosa won against Charles Jourdain. The fight ended in round 3 at 2:56. Method of victory: Submission.
  • June 19, 2021: Julian Erosa lost against SeungWoo Choi. The fight ended in round 1 at 1:37. Method of victory: KO/TKO.
  • February 20, 2021: Julian Erosa won against Nate Landwehr. The fight ended in round 1 at 0:56. Method of victory: KO/TKO.
  • June 27, 2020: Julian Erosa won against Sean Woodson. The fight ended in round 3 at 2:44. Method of victory: Submission.
  • May 18, 2019: Julian Erosa lost against Julio Arce. The fight ended in round 3 at 1:49. Method of victory: KO/TKO.
  • March 9, 2019: Julian Erosa lost against Grant Dawson. The fight ended in round 3 at 5:00. It was a unanimous decision. Additional details: 26 - 30. 27 - 30. 27 - 29.
  • November 10, 2018: Julian Erosa lost against Devonte Smith. The fight ended in round 1 at 0:46. Method of victory: KO/TKO.
  • March 5, 2016: Julian Erosa lost against Teruto Ishihara. The fight ended in round 2 at 0:34. Method of victory: KO/TKO.
  • December 11, 2015: Julian Erosa won against Marcin Wrzosek. The fight ended in round 3 at 5:00. It was a split decision. Additional details: 28 - 29. 29 - 28. 28 - 29.
Melquizael Costa

Weight Change: Staying at usual weight

Fight History:

  • March 29, 2025: Melquizael Costa won against Christian Rodriguez. The fight ended in round 3 at 5:00. It was a unanimous decision. Additional details: 28 - 29. 28 - 29. 28 - 29.
  • February 22, 2025: Melquizael Costa won against Andre Fili. The fight ended in round 1 at 4:30. Method of victory: Submission.
  • June 15, 2024: Melquizael Costa won against Shayilan Nuerdanbieke. The fight ended in round 3 at 1:50. Method of victory: Submission.
  • December 9, 2023: Melquizael Costa lost against Steve Garcia. The fight ended in round 2 at 1:01. Method of victory: KO/TKO.
  • July 15, 2023: Melquizael Costa won against Austin Lingo. The fight ended in round 3 at 5:00. It was a unanimous decision. Additional details: 26 - 30. 27 - 30. 27 - 30.
  • January 21, 2023: Melquizael Costa lost against Thiago Moises. The fight ended in round 2 at 4:05. Method of victory: Submission.

Fight Analysis

Analysis: Julian Erosa vs Melquizael Costa

WolfTicketsAI Predicts Melquizael Costa to Win

Score: 15
Odds:
Julian Erosa: 146
Melquizael Costa: -188

Julian Erosa's Breakdown

Erosa brings a chaotic, high-volume striking approach to the octagon, using his 6'1" frame and 74" reach to create problems for opponents. His recent performances show a fighter who's found his rhythm in the UFC, with three straight wins including two submissions and a KO.

Erosa's primary weapons include his relentless forward pressure and volume striking. Against Christian Rodriguez, he showcased his ability to blend striking with opportunistic submissions, landing a multi-punch combination capped with an uppercut before securing a submission finish. His pressure-heavy approach forces opponents to work defensively, gradually exhausting their cardio.

His clinch work has become particularly dangerous. Against Hakeem Dawodu, Erosa effectively used collar-tie positions to limit Dawodu's mobility, delivering uppercuts and short elbows that neutralized his opponent's head movement and footwork. This same approach worked against Steven Peterson, where Erosa's dirty boxing in close quarters created openings for his submission game.

Erosa's technical evolution is evident in his recent fights. He's transitioned from a conventional striker to a pressure fighter who maximizes his physical attributes while minimizing defensive liabilities. Against Ricardo Ramos, he demonstrated exceptional awareness by quickly securing neck control when Ramos shot for a takedown, immediately wrapping up his signature guillotine choke.

Julian Erosa's Technical Vulnerabilities

Erosa's aggressive style creates clear defensive liabilities that have been repeatedly exploited:

  1. Defensive hand positioning: Erosa keeps his hands positioned too low (near chest level), leaving his chin exposed. Against Peterson, this was repeatedly exploited as Peterson landed overhand rights almost at will after feinting or throwing jabs. This same vulnerability led to his knockout loss against SeungWoo Choi, who capitalized with a perfectly timed right hand.

  2. Linear forward movement: Despite his pressure-heavy style, Erosa moves forward in straight lines with minimal head movement. Against Fernando Padilla, this predictable forward momentum allowed Padilla to time a counter that led to a first-round KO. Similarly, Alex Caceres exploited this tendency, using kicks to slow Erosa down before landing the fight-ending blow.

  3. Chin durability concerns: Erosa has been knocked out multiple times in his career. His forward movement with minimal head movement compounds this issue, as seen in his losses to Padilla, Caceres, and Choi - all first-round knockout defeats where opponents timed his entries.

Melquizael Costa's Breakdown

Costa brings a well-rounded technical game that combines precision striking with opportunistic grappling. His recent three-fight win streak showcases his evolution into a dangerous featherweight contender.

Costa's striking arsenal centers around a clean, crisp jab which he uses to establish range before unleashing more damaging techniques. Against Christian Rodriguez, he demonstrated excellent footwork and distance management, using jabs and leg kicks to keep Rodriguez at bay. His ability to switch stances creates unpredictable angles, allowing him to land combinations that keep opponents off balance.

What makes Costa particularly dangerous is his submission prowess. Against Andre Fili, he capitalized on Fili's aggression by using his opponent's momentum against him, securing a tight guillotine choke for the first-round submission. This wasn't a fluke - Costa showed the same opportunistic grappling against Shayilan Nuerdanbieke, demonstrating his ability to transition seamlessly from striking to submission attempts.

Costa's technical evolution is evident in his improved clinch work and distance management. Against Austin Lingo, he employed a systematic body attack strategy, beginning with early investment in body shots to diminish Lingo's mobility and cardio. His intelligent cage cutting through the combination of right body kicks and left hook threats created a "funnel" that limited Lingo's escape routes.

Melquizael Costa's Technical Vulnerabilities

Despite his impressive skillset, Costa has shown several exploitable weaknesses:

  1. Defensive susceptibility during scrambles: Against Austin Lingo, Costa sometimes prioritized submission hunting over positional control, which led to significant time spent in disadvantageous positions. His eagerness to pursue submissions can cost him positional advantage.

  2. Over-commitment to guillotine attempts: Costa has a tendency to jump for guillotine chokes when opponents shoot or duck into his chest. While he has finished fights with this technique, it can leave him in bad positions if unsuccessful. Against higher-level grapplers, this could be problematic.

  3. Back control defense: In his loss to Steve Garcia, Costa demonstrated inadequate hand fighting when his back was taken, allowing Garcia to establish the body triangle and work toward the rear-naked choke. His failure to protect his neck and create defensive frames resulted in near-unconsciousness from the choke.

Style Matchup Dynamics

This matchup presents a fascinating clash between Erosa's chaotic pressure and Costa's technical precision. Several key dynamics will likely determine the outcome:

  • Striking exchanges: Costa's cleaner technical striking and counter-punching ability match up well against Erosa's aggressive but defensively flawed approach. Erosa's tendency to keep his hands low and move forward in straight lines plays directly into Costa's counter-striking game, particularly his overhand right counter that he used effectively against Thiago Moises.

  • Clinch battles: While Erosa excels in the clinch with his dirty boxing and collar-tie control, Costa has shown excellent defensive wrestling and the ability to threaten submissions from these positions. Against Rodriguez, Costa used knee strikes from the clinch to neutralize wrestling attempts - a technique that could be effective against Erosa's clinch entries.

  • Submission threats: Both fighters have dangerous submission games, but they approach them differently. Erosa looks for opportunistic submissions during scrambles, while Costa hunts for guillotines when opponents shoot in. Given Erosa's tendency to shoot takedowns after being pressured, he could find himself caught in Costa's guillotine trap.

Fight Phase Analysis

  • Early rounds: Costa's technical striking and counter-punching ability should give him an advantage in the early exchanges. His ability to manage distance with jabs and leg kicks will be crucial in neutralizing Erosa's forward pressure. Expect Costa to establish his jab early while looking to counter Erosa's aggressive entries with his overhand right.

  • Mid-fight adjustments: If Erosa can survive the early exchanges, he'll likely increase his pressure and volume, forcing Costa to work defensively. This is where Costa's cardio will be tested, as Erosa's relentless pace has worn down many opponents. Costa will need to maintain his technical discipline and not get drawn into Erosa's chaotic fighting style.

  • Championship rounds: Should the fight reach the later rounds, Erosa's experience in longer fights could be advantageous. However, Costa's body work in earlier rounds may pay dividends here, potentially slowing Erosa's movement and diminishing his ability to maintain his high-pressure approach.

Analysis and Key Points

  • Erosa's chin vulnerability vs Costa's precision: Erosa has been knocked out in three of his last five losses, all in the first round. Costa's precise counter-striking could exploit this vulnerability.
  • Submission chain reactions: Both fighters have multiple submission victories, but Costa's guillotine could be particularly effective against Erosa's takedown attempts.
  • Distance management: Costa's ability to maintain proper distance will be crucial. Against Hakeem Dawodu, Erosa was able to close distance and neutralize Dawodu's technical striking advantage.
  • Pace and cardio: Erosa's high-volume approach is designed to exhaust opponents. Costa must manage his energy efficiently to avoid fading in later rounds.
  • Recent momentum: Erosa enters on a three-fight win streak, while Costa has won his last three fights as well, creating a clash of fighters with positive momentum.

Understanding the Prediction

WolfTicketsAI's prediction favors Costa, with several key factors influencing the model:

  • Recent win percentage increased the prediction score by 2.0, reflecting Costa's strong recent performances
  • Win streak difference increased the prediction score by 1.0, with both fighters on three-fight win streaks
  • Reach increased the prediction score by 1.0, surprisingly favoring Costa despite Erosa's 3" reach advantage
  • Recent average striking output differential increased the prediction score by 1.0, suggesting Costa's striking efficiency

However, the model also identified factors working against Costa: - Odds decreased the prediction score by 8.0, indicating the betting market may be overvaluing Costa - Recent takedowns attempted per fight decreased the prediction score by 2.0, suggesting Costa's wrestling aggression could be a liability - TrueSkill decreased the prediction score by 1.0, reflecting Erosa's greater UFC experience

Past Model Performance

WolfTicketsAI has struggled to accurately predict Erosa's fights, going just 2-5 in his last seven bouts. The model incorrectly predicted Erosa would lose to both Ricardo Ramos and Christian Rodriguez, fights he won by submission. It also incorrectly predicted he would defeat Alex Caceres, a fight he lost by KO.

For Costa, the model is 1-3 in predicting his fights, correctly picking his win over Austin Lingo but missing on his victories against Christian Rodriguez and Andre Fili, as well as his loss to Steve Garcia.

This inconsistent prediction history suggests caution, as both fighters have repeatedly defied the model's expectations.

Conclusion

Costa's technical precision, counter-striking ability, and opportunistic submission game match up favorably against Erosa's aggressive but defensively flawed approach. While Erosa's chaotic pressure and volume striking can overwhelm opponents, his defensive vulnerabilities and chin concerns make him susceptible to Costa's clean counter punches and submission threats. Costa's ability to capitalize on Erosa's forward momentum with well-timed counters and guillotine attempts should prove decisive in this matchup. WolfTicketsAI's prediction of a Costa victory is well-founded based on the technical matchup dynamics.

Stat Breakdown

Stat Julian Erosa Melquizael Costa
Main Stats
Age 35 28
Height 73" 70"
Reach 74" 71"
Win Percentage 72.09% 76.67%
Wins 31 24
Losses 13 7
Wins at Weight Class 6 4
Losses at Weight Class 6 0
Striking Stats
Striking Accuracy 53.58% 61.68%
Significant Striking Accuracy 49.17% 49.79%
Strikes Landed Per Minute 7.759 7.048
Significant Strikes Landed Per Minute 6.281 3.858
Knockdowns per Fight 0.123 0.000
Striking Impact Differential 1.06% 34.00%
Significant Striking Impact Differential 1.38% 11.67%
Striking Output Differential 4.50% 45.50%
Significant Striking Output Differential 5.38% 20.83%
Striking Defense to Offense Ratio 80.84% 46.19%
Significant Striking Defense to Offense Ratio 95.06% 77.64%
Striking Defense Percentage 49.46% 52.42%
Takedown and Submission Stats
Submissions per Fight 0.858 1.221
Takedowns per Fight 1.715 1.953
Takedowns Attempted per Fight 3.430 5.616
Takedown Defense 56.52% 83.33%
Takedown Accuracy 50.00% 34.78%
Head Stats
Head Strikes Landed per Minute 4.174 1.498
Head Strikes Attempted per Minute 9.916 4.460
Head Strikes Absorbed per Minute 4.558 1.758
Body Stats
Body Strikes Landed per Minute 1.536 1.530
Body Strikes Attempted per Minute 2.173 2.295
Body Strikes Absorbed per Minute 0.784 0.765
Leg Stats
Leg Strikes Landed per Minute 0.572 0.830
Leg kicks Attempted per Minute 0.686 0.993
Leg kicks Absorbed per Minute 0.760 0.195
Clinch Stats
Clinch Strikes Landed per Minute 1.021 0.570
Clinch Strikes Attempted per Minute 1.421 0.846
Clinch Strikes Absorbed per Minute 0.637 0.521
Julian Erosa History:
Date Weight Red Corner Blue Corner Winner
April 12, 2025 Featherweight Darren Elkins Julian Erosa Julian Erosa
July 13, 2024 Featherweight Julian Erosa Christian Rodriguez Julian Erosa
March 23, 2024 Featherweight Ricardo Ramos Julian Erosa Julian Erosa
April 29, 2023 Featherweight Julian Erosa Fernando Padilla Fernando Padilla
Dec. 17, 2022 Featherweight Alex Caceres Julian Erosa Alex Caceres
Sept. 10, 2022 Featherweight Hakeem Dawodu Julian Erosa Julian Erosa
Feb. 5, 2022 Featherweight Julian Erosa Steven Peterson Julian Erosa
Sept. 4, 2021 Catch Weight Julian Erosa Charles Jourdain Julian Erosa
June 19, 2021 Featherweight Julian Erosa SeungWoo Choi SeungWoo Choi
Feb. 20, 2021 Featherweight Nate Landwehr Julian Erosa Julian Erosa
June 27, 2020 Catch Weight Sean Woodson Julian Erosa Julian Erosa
May 18, 2019 Featherweight Julio Arce Julian Erosa Julio Arce
March 9, 2019 Featherweight Grant Dawson Julian Erosa Grant Dawson
Nov. 10, 2018 Lightweight Devonte Smith Julian Erosa Devonte Smith
March 5, 2016 Featherweight Julian Erosa Teruto Ishihara Teruto Ishihara
Dec. 11, 2015 Lightweight Julian Erosa Marcin Wrzosek Julian Erosa
Melquizael Costa History:
Date Weight Red Corner Blue Corner Winner
March 29, 2025 Featherweight Christian Rodriguez Melquizael Costa Melquizael Costa
Feb. 22, 2025 Featherweight Andre Fili Melquizael Costa Melquizael Costa
June 15, 2024 Featherweight Melquizael Costa Shayilan Nuerdanbieke Melquizael Costa
Dec. 9, 2023 Lightweight Steve Garcia Melquizael Costa Steve Garcia
July 15, 2023 Featherweight Austin Lingo Melquizael Costa Melquizael Costa
Jan. 21, 2023 Lightweight Thiago Moises Melquizael Costa Thiago Moises