Mason Jones
Vitals
Height, reach, and career background.
- Age
- 31
- Height
- 5′10″1.78 m
- Reach
- 74″188 cm
- Weight class
- Lightweight
- Nationality
- Wales
- Team
- Celtic Pride MMA
Record
Tap expandable fights for their breakdowns.
LossRecord after fight: 18-3-0TKO
The first round was competitive and entertaining between the two. Jones built early momentum in round two before Mederos found his opening. Mederos landed a right hand that put Jones on skates, then swarmed until referee Jason Herzog stopped the fight at 2:07 of round two.
Key moments
- The first round was competitive and entertaining between Mederos and Jones.
- Jones built early momentum in round two before Mederos found his opening.
- Mederos landed a right hand that hurt Jones, then swarmed until referee Jason Herzog stopped the fight.
21 Mar 2026
6 Sep 2025
3 May 2025
25 Jul 2024
23 Feb 2024
14 Oct 2023
29 Jul 2023
LossRecord after fight: 11-2-0DEC
UFC Fight Night: Blaydes vs. Aspinall
23 Jul 2022
23 Jul 2022
Jones did most of the forward-moving through the first, but Klein fought back well and closed the round with a kick to the face. A punch inside the opening minute of the second put Jones down, and from there he spent much of the fight either on the mat or tied up against the fence. All three judges returned 30-27 for Klein.
Key moments
- Jones was the aggressor through round one, but Klein fought back well and finished the round with a kick to the face.
- Klein dropped Jones with a punch inside the first minute of round two.
- Jones was up quickly and landed well once he broke free, but a missed hip throw let Klein stay on his feet.
- An early jumping submission attempt in round three came up short and left Jones on his back, with Klein controlling from the top until the final minute.
23 Oct 2021
5 Jun 2021
LossRecord after fight: 10-1-0DEC
UFC on ESPN: Chiesa vs. Magny
20 Jan 2021
20 Jan 2021
Jones waved off the glove touch and opened on the front foot with a spinning back kick and a straight right, but Davis answered with the quicker, cleaner punching. Davis timed a takedown about two minutes into the first that Jones popped straight back up from, then closed the round with a knee to the chin on the horn. A clean low kick put Jones down early in the second, and Davis took it on all three cards at 29-28.
Key moments
- Jones declined the glove touch and opened with a spinning back kick and a straight right.
- Davis answered with the quicker, cleaner punching and timed a takedown around two minutes into the first; Jones was straight back up.
- Davis landed a knee to the chin as the first-round horn sounded, and a clean low kick took Jones off his feet early in the second.
- Davis knocked Jones's mouthpiece out late in the second, but Jones drove through the following scramble to land on top as the buzzer went.
26 Sep 2020
20 Mar 2020
12 Oct 2019
27 Apr 2019
29 Sep 2018
21 Jul 2018
12 May 2018
3 Mar 2018
9 Dec 2017
14 Oct 2017
The Read
Style, strengths, and defining traits.
Jones suffered his first finish loss against MarQuel Mederos, stopped by strikes in the second round at UFC Fight Night on August 22, 2026. His first two sourced losses were unanimous decisions, both in the UFC — to Ľudovít Klein and to Mike Davis. His eighteen wins still divide into eight by knockout or TKO, three by submission and seven on the cards.
The Welshman came up through Cage Warriors, with wins over Yann Liasse, Bryce Logan and Michael Pagani. His recent Octagon form has been the strongest of his run: a unanimous decision over Jeremy Stephens, a second-round elbow stoppage of Bolaji Oki, and a unanimous decision over Axel Sola.
Signature Fights
Tap a verified clip to play it here.