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Ketlen Vieira
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FENOMENO

Ketlen Vieira

Brazil flag
Brazil, Manaus, Amazonas
Nova Uniao
Age: 35
16
Wins
5
Losses
0
DRAWS
@KetlenVieira
@ketlenvieira
No fight booked

Last fightWin

Ketlen VieiraKetlen Vieira
vs
Jacqueline CavalcantiJacqueline Cavalcanti

Unanimous decisionUFC Fight Night: Allen vs. Costa

  • Pro record 16-5-0
  • UFC record 10-5-0
  • Outside the UFC 6-0-0
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Fighter Details

Height:
5'8" (173 cm)
Weight:
135 lbs (61 kg)
Reach:
68" (173 cm)
Stance:
Orthodox
DOB:
26th Aug. 1991
Age:
35
AI Rank:
Unranked

UFC statistics

UFC round data: 15 bouts · through 2026-05-16

2.71
Significant Strikes Landed per Min
40%
Significant Striking Accuracy
3.73
Significant Strikes Absorbed per Min
1.3
Average Takedowns per 15 Min
43%
Takedown Accuracy
0.5
Submission Average per 15 Min
ufc logo

UFC Record Breakdown

10-5UFC Record
Sub (7%)
Decision (60%)
Losses (33%)

Performance Breakdown

Striking Accuracy40%
Takedown Accuracy43%
Takedown Defense90%

Heuristic ratings

Heuristic scores · 0–100

Fight IQ39/100

15 UFC bouts · 34 division peers

Data through 2026-05-16

Cardio100/100

13 bouts reaching round 3

Data through 2026-05-16

How these scores are calculated

Fight IQ = 40% striking-accuracy percentile + 30% striking-defense percentile + 30% takedown-defense percentile within the division.

Requires 3 UFC bouts, 15 measured minutes, at least 10 division peers, 100 strike attempts, 100 opponent strike attempts and 10 opponent takedown attempts.

Cardio = 100 × the median late/early significant-strike attempt rate ratio, capped at 100. Compare rounds 3+ with rounds 1–2 within each bout. Requires 3 eligible bouts with at least 60 late-round seconds each. 100 means maintained or higher late pace.

Fight IQ summarizes accuracy and defense; cardio summarizes retained pace. Style, opponents and grappling affect both. These scores do not measure intelligence, physical fitness or win probability.

Formula v1

Social Media Growth

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@ketlenvieira
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Frequently asked questions

What is Ketlen Vieira's professional MMA record?

Ketlen Vieira has a professional MMA record of 16-5-0 (wins-losses-draws).

What is Ketlen Vieira's UFC record?

Ketlen Vieira's UFC record is 10-5-0 (wins-losses-draws), and 6-0-0 in professional fights outside the UFC.

Who does Ketlen Vieira fight next?

Ketlen Vieira does not have a fight currently scheduled.

How old is Ketlen Vieira?

Ketlen Vieira is 35 years old, born August 26, 1991.

How tall is Ketlen Vieira?

Ketlen Vieira stands 173 cm (5'8") tall, with a 173 cm (68") reach.

Where is Ketlen Vieira from?

Ketlen Vieira is from Brazil.

What is Ketlen Vieira's nickname?

Ketlen Vieira is known as "Fenomeno".

When was Ketlen Vieira's last fight?

Ketlen Vieira last fought on May 16, 2026 at UFC Fight Night: Allen vs. Costa, defeating Jacqueline Cavalcanti by unanimous decision.

What were the scorecards for Ketlen Vieira vs Jacqueline Cavalcanti?

Ketlen Vieira defeated Jacqueline Cavalcanti by unanimous decision at UFC Fight Night: Allen vs. Costa on May 16, 2026. All three judges (Eric Colon, Sal D'amato, David Lethaby) scored the fight 29-28 in Ketlen Vieira's favor.

What were the scorecards for Ketlen Vieira vs Norma Dumont?

Ketlen Vieira lost to Norma Dumont by split decision at UFC Fight Night: Garcia vs. Onama on November 1, 2025. The official scorecards were Derek Cleary 29-28, Ron McCarthy 28-29, Eric Colon 29-28 (winner's score first).

Ketlen Vieira scouting report

Ketlen Vieira (Brazil) is a 35-year-old women's bantamweight who is 16-5 as a pro and 10-5 in the UFC (6-0 outside it). She debuted at UFC Fight Night: Lineker vs. Dodson on October 1, 2016; one of her ten UFC wins came by submission and nine by decision; her UFC wins include Jacqueline Cavalcanti (now ranked #8 at women's bantamweight) and Macy Chiasson (now ranked #9 at women's bantamweight). She stops 90% of opponents' takedown attempts (women's bantamweight average: 65.4%; 93rd percentile of 34 active women's bantamweights with at least 3 UFC bouts and 15 minutes of fight time) and lands 40.2% of her significant-strike attempts (average: 47.2%; 10th percentile). Last fight: unanimous-decision win over Jacqueline Cavalcanti, then 5-0 in the UFC, on May 16, 2026 (UFC Fight Night: Allen vs. Costa). No next fight is booked.

Built from AgentMMA's UFC database (as of October 31, 2026); not AI-written.

Ketlen Vieira vs the women's bantamweight average

Computed by AgentMMA from the round-by-round stats of 15 UFC bouts (3:49:07 of fight time).

StatVieiraDivision averagePercentile
Significant strikes landed per minute2.7621 in 3:49:073.713
Significant strike accuracy40.2%621 of 1,546 landed47.2%10
Significant strikes absorbed per minute3.7855 in 3:49:073.563
Significant strike defense50.5%873 of 1,728 avoided54.7%25
Takedowns per 15 minutes1.320 in 3:49:071.163
Takedown accuracy42.6%20 of 47 landed35.4%60
Takedown defense90%36 of 40 stopped65.4%93
Submission attempts per 15 minutes0.58 in 3:49:070.369
Knockdowns per 15 minutes00 in 3:49:070.119
Control time31.7%1:12:36 of 3:49:0722.6%81
Average fight time15:1615 bouts12:0893
Height173 cm68″171 cm67.2″
Reach173 cm68″172 cm67.9″
  • Division average and percentile: 34 active women's bantamweight fighters with a UFC bout in the last 3 years, at least 3 UFC bouts and 15 minutes of UFC fight time.
  • Percentile: the share of those fighters whose value is lower (ties count half). For every stat, a higher percentile means a higher number.

Related MMA Lab pages

UFC fight record

UFC record: 10-5

Every UFC bout, newest first. Open a bout for the full result, judges' scorecards and round-by-round stats.

  1. WUFC record after this bout: 10-5-0
    Ketlen Vieira
    Ketlen Vieira
    vs
    Jacqueline Cavalcanti
    Jacqueline Cavalcanti#8
    Pro record now: 10-2-0UFC record entering: 5-0-0
    DECUFC Fight Night: Allen vs. CostaMay 16, 2026Result & stats
  2. LUFC record after this bout: 9-5-0
    Ketlen Vieira
    Ketlen Vieira
    vs
    Norma Dumont
    Norma Dumont#4
    Pro record now: 13-4-0UFC record entering: 8-2-0
    DECUFC Fight Night: Garcia vs. OnamaNov 1, 2025Result & stats
  3. WUFC record after this bout: 9-4-0
    Ketlen Vieira
    Ketlen Vieira
    vs
    Macy Chiasson
    Macy Chiasson#9
    Pro record now: 11-6-0UFC record entering: 8-3-0
    DECUFC Fight Night: Blanchfield vs. BarberMay 31, 2025Result & stats
  4. LUFC record after this bout: 8-4-0
    Ketlen Vieira
    Ketlen Vieira
    vs
    Kayla Harrison
    Kayla HarrisonChampion
    Pro record now: 19-1-0UFC record entering: 1-0-0
    DECUFC 307: Pereira vs. Rountree Jr.Oct 5, 2024Result & stats
  5. WUFC record after this bout: 8-3-0
    Ketlen Vieira
    Ketlen Vieira
    vs
    Pannie Kianzad
    Pannie Kianzad
    Pro record now: 17-9-0UFC record entering: 5-3-0
    DECUFC Fight Night: Aspinall vs. TyburaJul 22, 2023Result & stats
  6. LUFC record after this bout: 7-3-0
    Ketlen Vieira
    Ketlen Vieira
    vs
    Raquel Pennington
    Raquel Pennington#5
    Pro record now: 16-10-0UFC record entering: 11-5-0
    DECUFC Fight Night: Strickland vs. ImavovJan 14, 2023Result & stats
  7. WUFC record after this bout: 7-2-0
    Ketlen Vieira
    Ketlen Vieira
    vs
    Holly Holm
    Holly Holm
    Pro record now: 15-7-0 (1 NC)UFC record entering: 7-5-0
    DECUFC Fight Night: Holm vs. VieiraMay 21, 2022Result & stats
  8. WUFC record after this bout: 6-2-0
    Ketlen Vieira
    Ketlen Vieira
    vs
    Miesha Tate
    Miesha Tate
    Pro record now: 20-10-0UFC record entering: 6-4-0
    DECUFC Fight Night: Vieira vs. TateNov 20, 2021Result & stats
  9. LUFC record after this bout: 5-2-0
    Ketlen Vieira
    Ketlen Vieira
    vs
    Yana Santos
    Yana Santos#6
    Pro record now: 17-9-0 (1 NC)UFC record entering: 3-2-0
    DECUFC Fight Night: Blaydes vs. LewisFeb 20, 2021Result & stats
  10. WUFC record after this bout: 5-1-0
    Ketlen Vieira
    Ketlen Vieira
    vs
    Sijara Eubanks
    Sijara Eubanks
    Pro record now: 8-7-0UFC record entering: 4-2-0
    DECUFC 253: Adesanya vs. CostaSep 26, 2020Result & stats
  11. LUFC record after this bout: 4-1-0
    Ketlen Vieira
    Ketlen Vieira
    vs
    Irene Aldana
    Irene Aldana
    Pro record now: 15-8-0UFC record entering: 4-3-0
    KO/TKOR1 4:51UFC 245: Usman vs. CovingtonDec 14, 2019Result & stats
  12. WUFC record after this bout: 4-0-0
    Ketlen Vieira
    Ketlen Vieira
    vs
    Cat Zingano
    Cat Zingano
    Pro record now: 10-4-0UFC record entering: 2-2-0
    DECUFC 222: Cyborg vs. KunitskayaMar 3, 2018Result & stats
  13. WUFC record after this bout: 3-0-0
    Ketlen Vieira
    Ketlen Vieira
    vs
    Sara McMann
    Sara McMann
    Pro record now: 13-6-0UFC record entering: 5-3-0
    SUBR2 4:16UFC 215: Nunes vs Shevchenko 2Sep 9, 2017Result & stats
  14. WUFC record after this bout: 2-0-0
    Ketlen Vieira
    Ketlen Vieira
    vs
    Ashlee Evans-Smith
    Ashlee Evans-Smith
    Pro record now: 6-6-0UFC record entering: 2-1-0
    DECUFC on FOX: Johnson vs. ReisApr 15, 2017Result & stats
  15. WUFC record after this bout: 1-0-0
    Ketlen Vieira
    Ketlen Vieira
    vs
    Kelly Faszholz
    Kelly Faszholz
    Pro record now: 4-2-0UFC record entering: 0-1-0
    DECUFC Fight Night: Lineker vs. DodsonOct 1, 2016Result & stats

Next for Ketlen Vieira

Last fightKetlen Vieira vs Jacqueline CavalcantiHead-to-head breakdown and verified fight statsDivisionUFC Women's Bantamweight rankingsChampion, top 15 and professional MMA records
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