RJ Harris
Vitals
Height, reach, and career background.
Record
Tap any fight for the breakdown.
WinTKO
UFC Fight Night - Du Plessis vs. Usman
18 Jul 2026
18 Jul 2026
Harris was patient on debut, making reads rather than swinging early. A right hand backed Hines up, and when Hines stepped forward to re-engage Harris met him with an uppercut that dropped him.
Key moments
- Stayed patient early, reading Hines rather than forcing exchanges.
- A right hand backed Hines up and drew him into re-engaging.
- Dropped Hines with an uppercut and finished on the ground at 1:40.
17 Apr 2026
WinKO/TKO
Opponent: Alex MarroR1 2:17
LFA 223
21 Nov 2025
21 Nov 2025
Harris needed just one round to stop Alex Marro at LFA 223, the clearest look at the punching power behind the 'Hammer' nickname. The knockout was his second straight LFA finish and his lone KO among five wins.
Key moments
- Ended the fight by knockout at 2:17 of the opening round.
- Back-to-back LFA finishes moved him toward a UFC look.
- The bout showcased the right-hand power his nickname advertises.
13 Sep 2025
7 Jun 2025
1 Mar 2025
The Read
Style, strengths, and defining traits.
Harris is a 6-foot-6 orthodox heavyweight with a boxing base — the nickname 'The Hammer' points to a heavy right hand — and until the UFC his finishing had actually leaned on the mat, with three of his six wins by submission (a guillotine, an Americana and a forearm choke). He is a fast starter who has now closed five of six fights inside the distance, usually in the first or second round.
That step-up and a run of quick finishes earned him a short-notice UFC call to replace Allen Frye Jr. opposite Alvin Hines, and the debut answered the question of whether the front-loaded finishing travels: he was patient, drew Hines onto an uppercut, and finished on the ground at 1:40 of the first to move to 6-0 — this time with the right hand rather than the choke.