Charles Radtke, head-and-shoulders portrait
Chuck Buffalo

Charles Radtke

Welterweight
Orthodox
Valley Flow Striking
Record Record: 12-5-0
Wins
12
Losses
5
Draws
0
5KO/TKO
3Sub
4Dec
View full record ↓

Vitals

Height, reach, and career background.

Age35
Height1.75 m
Reach183 cm
Stance StanceWhich side a fighter leads from — a striking term, not a religious one. Orthodox: right-handed, left foot and hand forward (the common default). Southpaw: the mirror image, right side forward (usually a left-hander). Switch: changes between the two during a fight.Orthodox
NationalityUnited States
TeamValley Flow Striking
Weight classWelterweight
Active2012-present

Record

Tap any fight for the breakdown.

WinDEC
Opponent: Francisco PradounanimousR3 5:00
UFC 327
11 Apr 2026
WinSUB
Opponent: Daniel Frunzarear-naked chokeR3 4:29
UFC Fight Night: Garcia vs. Onama
1 Nov 2025

Radtke worked through a longer fight with Frunza and found the rear-naked choke late in round three at the Apex.

Key moments

  • Submitted Frunza at 4:29 of the third round.
  • The finish snapped the one-fight skid from UFC 315.
  • It set up the April 2026 matchup with Francisco Prado.
LossKO/TKO
Opponent: Mike MalottpunchesR2 0:26
UFC 315: Muhammad vs. Della Maddalena
10 May 2025
WinTKO
Opponent: Matthew SemelsbergerpunchesR1 0:51
UFC Fight Night: Magny vs. Prates
9 Nov 2024
LossKO/TKO
Opponent: Carlos Pratesknee to the bodyR1 4:47
UFC on ESPN: Cannonier vs. Imavov
8 Jun 2024

Radtke traded with the dangerous Prates for most of a hard first round before being finished by a knee to the body late in the frame. The loss mattered because it checked the surge created by his wins over Urbina and Mike Mathetha and showed the risk in meeting elite power head-on.

Key moments

  • Was stopped by Prates at 4:47 of the opening round.
  • The finish came after Radtke had won his first two UFC bouts.
  • He answered with the quick Semelsberger stoppage in November 2024.
WinTKO
Opponent: Gilbert UrbinapunchesR1 4:47
UFC Fight Night: Dolidze vs. Imavov
3 Feb 2024
WinDEC
Opponent: Mike MathethaunanimousR3 5:00
UFC 293: Adesanya vs. Strickland
9 Sep 2023

The unanimous decision was not flashy, but it mattered because it proved he could handle the step up and bank a disciplined debut win.

Key moments

  • Won his UFC debut by unanimous decision.
  • Completed all three rounds and took the fight on the cards.
  • Started his Octagon tenure with a controlled result rather than a scramble-heavy finish.
WinSUB
Opponent: Raheam Forestrear-naked chokeR1 4:20
CFFC 118: Forest vs. Radtke
1 Apr 2023

It was the kind of finishing performance that helped carry him from the regional circuit into the UFC later that year.

Key moments

  • Won by rear-naked choke in round one.
  • The submission came at 4:20 of the opening frame.
  • Served as the final win before his UFC debut.
WinKO/TKO
Opponent: Caleb CrumppunchR1 1:48
CFFC 110: Alequin vs. Radtke
14 Jul 2022

Crump lasted less than two minutes before Radtke knocked him out with a punch in round one.

Key moments

  • Won by first-round knockout.
  • The finish came at 1:48 of round one.
  • Added another early stoppage during his CFFC stretch.
WinDEC
Opponent: Jonathan PiersmasplitR3 5:00
CFFC 106
17 Mar 2022
WinKO/TKO
Opponent: Brandon LopezpunchR2 3:31
CFFC 100
16 Sep 2021
LossKO/TKO
Opponent: Justin Montalvopunch to the bodyR2 4:55
Triton Fights 18
27 Mar 2021
WinDEC
Opponent: Geralbert CastillounanimousR3 5:00
XMMA: Vick vs. Fialho
30 Jan 2021

Radtke went the distance with Castillo and earned a unanimous decision in early 2021.

Key moments

  • Won a unanimous decision after three rounds.
  • Logged a full-distance regional win in his first fight of 2021.
  • Extended his rebuilding phase after earlier Bellator and Caged Aggression losses.
LossDEC
Opponent: Christopher GonzalezunanimousR3 5:00
Bellator 221: Chandler vs. Pitbull
11 May 2019
LossDEC
Opponent: Austin HubbardunanimousR3 5:00
Caged Aggression 21: The Champions Day 2
10 Mar 2018
WinKO/TKO
Opponent: Jeffrey PeltonpunchesR2 2:23
IT Fight Series 72
25 Mar 2017
WinSUB
Opponent: Jimmy Kimtriangle chokeR1 2:07
XFO 46
17 Nov 2012

The Read

Style, strengths, and defining traits.

Radtke is a compact pressure welterweight whose best rounds come when he can turn calm opponents into pocket fights. He is willing to force exchanges early, mix in level changes behind his boxing, and trust the durability and top control that carried him through the regional scene before he reached the UFC.

The recent run shows both the upside and the risk in that style. Radtke opened his UFC tenure with wins over Mike Mathetha and Gilbert Urbina, was checked by Carlos Prates and Mike Malott when the firefights turned against him, then rebounded with the fast Semelsberger stoppage, the late Frunza choke, and a clear decision over Francisco Prado at UFC 327.