Mackenzie Dern
Vitals
Height, reach, and career background.
- Age
- 33
- Height
- 5′4″1.63 m
- Reach
- 63″160 cm
- Weight class
- Women's Strawweight
- Nationality
- United States
- Team
- Megaton Dias BJJ
- Active
- 2016-present
Record
Tap expandable fights for their breakdowns.
WinRecord after fight: 17-5-0DEC

Dern won this on the ground and on control rather than on damage. Takedowns and submission attempts defined the fight, and she came close to finishing Robertson more than once without ever quite getting there. The closest moment came in the final minute of round one, when a rear-naked choke had Robertson in real trouble and the horn saved her. From there Dern largely maintained position and demonstrated she was the superior grappler, in what reports described as a one-sided but low-action title fight. The judges returned 49–46, 49–46 and 48–47 for the champion.
Key moments
- Dern nearly finished it with a rear-naked choke in the last minute of round one; the horn rescued Robertson.
- Takedowns and submission attempts ruled the fight, with Dern maintaining position rather than hunting a stoppage.
- Across five rounds Dern showed she was the superior grappler, which is what the unanimous cards reflected.
WinRecord after fight: 15-5-0SUB
Opponent: Amanda RibasarmbarR3 4:56
UFC Fight Night: Dern vs. Ribas 2
11 Jan 2025

11 Jan 2025
Dern got her revenge on Ribas in the rematch by staying dangerous late and finding the armbar with almost no time left in round three.
Key moments
- Submitted Ribas in the closing seconds of round three.
- Found the armbar at 4:56 of the final round.
- Picked up a Performance of the Night bonus.
WinRecord after fight: 14-5-0DEC
UFC on ABC: Sandhagen vs. Nurmagomedov
3 Aug 2024

3 Aug 2024
Dern stayed measured against Godinez and did enough over three rounds to secure a unanimous decision. The win was less dramatic than some of her submission finishes, but it was useful proof that her game can still function in a disciplined fifteen-minute format.
Key moments
- Won a unanimous decision over a durable strawweight.
- Managed a full three-round fight without fading late.
- Rebounded cleanly after the Lemos loss.
LossRecord after fight: 13-5-0DEC
UFC 298
17 Feb 2024

17 Feb 2024
Lemos kept enough of the fight in striking range to deny Dern the kind of prolonged grappling exchanges she wanted. The result was a unanimous decision loss after three rounds, even though the bout still drew Fight of the Night recognition.
Key moments
- Lost a unanimous decision at UFC 298.
- Could not consistently turn the fight into extended grappling control.
- Still shared Fight of the Night honors.

11 Nov 2023
WinRecord after fight: 13-3-0DEC
Opponent: Angela HillunanimousR5 5:00
UFC Fight Night: Dern vs. Hill
20 May 2023

20 May 2023
Hill stayed competitive and active, but Dern's cleaner power shots and timely grappling moments carried her to a wide main-event decision.
Key moments
- Won a five-round unanimous decision in her third UFC main event.
- Showed the striking growth she had emphasized coming into the fight.
- Mixed in enough grappling threats to keep Hill from building a purely kickboxing match.
- Left with scores of 49-43, 49-44 and 49-44.
LossRecord after fight: 12-3-0DEC
UFC Fight Night: Dern vs. Yan
1 Oct 2022

1 Oct 2022
Yan largely controlled the stand-up across five rounds and survived Dern's best submission threats to take the main event. Dern had dramatic grappling moments, but Yan's cleaner volume over the full twenty-five minutes earned the majority decision.
Key moments
- Dropped a five-round majority decision in Las Vegas.
- Created real danger whenever she pulled Yan into extended grappling exchanges.
- Could not overcome Yan's edge in volume and range striking over the full fight.
WinRecord after fight: 12-2-0DEC
Opponent: Tecia TorressplitR3 5:00
UFC 273
9 Apr 2022
9 Apr 2022
Dern edged Torres in a close three-round contest built on the familiar style contrast of grappling pressure against footwork and speed. Torres had success on the feet, but Dern did enough in the judges' eyes to escape with the split decision.
Key moments
- Won a split decision in a tightly contested strawweight matchup.
- Had to work through Torres' speed and movement rather than dominate on the mat.
- Used her pressure and submission threat to keep the rounds close enough to steal.
- Bounced back from the Rodriguez defeat with a needed ranked win.
LossRecord after fight: 11-2-0DEC
Opponent: Marina RodriguezunanimousR5 5:00
UFC Fight Night: Dern vs. Rodriguez
9 Oct 2021

9 Oct 2021
Rodriguez handled long stretches of the stand-up and repeatedly made Dern pay before the fight ever reached safe grappling territory. Dern had her moments on the floor, but Rodriguez's damage and control at range were enough for a clean five-round decision.
Key moments
- Lost a unanimous decision in her first UFC main event.
- Rodriguez did most of her best work at distance with cleaner striking.
- Dern still generated dangerous grappling sequences, but not often enough to flip the fight.
- The bout became a measuring-stick loss against a top strawweight contender.
WinRecord after fight: 11-1-0SUB
Opponent: Nina NunesarmbarR1 4:48
UFC on ABC: Vettori vs. Holland
10 Apr 2021
10 Apr 2021
Dern was patient early, then capitalized as soon as the fight hit her preferred phase and ripped an armbar in the closing seconds of round one. It was the kind of instant-jitsu finish that kept reminding the division how little margin for error exists against her on the floor.
Key moments
- Submitted Nunes with an armbar at 4:48 of round one.
- Needed only one meaningful grappling sequence to end the fight.
- Made a statement on ABC with another first-round finish.
WinRecord after fight: 10-1-0DEC
UFC 256
12 Dec 2020

12 Dec 2020
Dern beat another high-level grappler by showing she could stay composed in a technical ground fight and win minutes everywhere else. The unanimous decision over Jandiroba gave her a third straight UFC victory and set up a bigger name next.
Key moments
- Won a unanimous decision over a respected jiu-jitsu specialist.
- Did not force a reckless submission chase against another dangerous grappler.
- The result positioned her for the Nina Nunes matchup.
WinRecord after fight: 9-1-0SUB
Opponent: Randa MarkosarmbarR1 3:44
UFC Fight Night: Covington vs. Woodley
19 Sep 2020
19 Sep 2020
Dern quickly dragged the fight into her world and forced Markos to tap before the first round ended. The armbar was one of her cleaner UFC finishes and another reminder of how dangerous every scramble becomes against her.
Key moments
- Finished Markos by first-round armbar at 3:44.
- Collected another Performance of the Night level submission in the Apex era.
- Needed less than four minutes once the fight hit the mat.
- Followed the Cifers kneebar with a second straight first-round finish.
30 May 2020
LossRecord after fight: 7-1-0DEC
Opponent: Amanda RibasunanimousR3 5:00
UFC Fight Night: Joanna vs. Waterson
12 Oct 2019

12 Oct 2019
Ribas handed Dern her first UFC defeat by staying composed through the grappling danger and consistently winning the striking exchanges. Dern had moments, but Ribas' balance across all three rounds made the outcome clear.
Key moments
- Ribas denied Dern the kind of sustained control she usually turns into finishes.
- The striking gap was the bigger story over fifteen minutes.
- The loss ended Dern's 7-0 start as a professional.
WinRecord after fight: 7-0-0SUB
Opponent: Amanda Cooperrear-naked chokeR1 2:27
UFC 224
12 May 2018
12 May 2018
Dern's first UFC finish came in a chaotic week that was overshadowed by her massive weight miss, but once the fight began she overwhelmed Cooper and found the rear-naked choke in round one. The talent was obvious even if the professionalism questions were unavoidable.
Key moments
- Submitted Cooper at 2:27 of the first round.
- Recorded her first finish inside the Octagon.
- The bout was surrounded by controversy after Dern missed weight badly.
- Once the fight hit the floor, the grappling gap closed the show quickly.
3 Mar 2018
WinRecord after fight: 5-0-0SUB
Opponent: Kaline MedeirosarmbarR3 4:45
Invicta FC 26
8 Dec 2017
8 Dec 2017
The late finish showed patience and persistence rather than the instant submission that often defined her earlier appearances.
Key moments
- Finished Medeiros with an armbar late in round three.
- Needed her deepest fight to that point before getting the submission.
- Ended her Invicta debut with another win rather than a flashy blowout.
WinRecord after fight: 4-0-0SUB
Opponent: Mandy Polkrear-naked chokeR1 2:55
LFA 24
13 Oct 2017
13 Oct 2017
She needed less than three minutes to find the back and end the fight with the kind of clean submission that had become routine on the regional scene.
Key moments
- Won by rear-naked choke at 2:55 of the first round.
- Made her flyweight debut in the bout.
- The finish reinforced how quickly she could close once she found dominant position.
WinRecord after fight: 3-0-0DEC
Opponent: Katherine RoyunanimousR3 5:00
LFA 6
10 Mar 2017
10 Mar 2017
Roy pushed Dern the full distance in a catchweight bout and forced her to show a more patient side of her game.
Key moments
- Won a unanimous decision over three rounds in San Antonio.
- Competed at 120 pounds rather than her usual strawweight limit.
- Had to go the distance instead of collecting another quick finish.
WinRecord after fight: 2-0-0SUB
Opponent: Montana De La Rosarear-naked chokeR1 3:25
Legacy FC 61
14 Oct 2016
14 Oct 2016
Dern beat future UFC flyweight De La Rosa in the first round by doing what everyone expected once the fight hit the mat.
Key moments
- Finished De La Rosa by rear-naked choke at 3:25 of round one.
- Beat a future UFC fighter on the regional circuit.
- Stayed perfect as a professional at 2-0.
- Needed only one round once the grappling exchanges developed.
22 Jul 2016
The Read
Style, strengths, and defining traits.
Mackenzie Dern started training BJJ at their dad’s academy when they were three. Their background also includes No Gi World Champ. Their background also includes black belt in Brazilian Jiu-Jitsu.
Signature Fights
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