Carlston Harris

Mocambique

Guyana

Next fight scheduled
WelterweightUFC
May 16, 2026
Harris (not injury related) will fight fellow welterweight Jake Matthews at UFC Macau on May 30, according to Marcel Dorff of Eurosport.nl.
ANALYSIS
Harris will be good to travel to Macau in under two weeks' notice and replace Muslim Salikhov (undisclosed) to fight Matthews. The substitute is finally looking to bounce back from a TKO loss to Santiago Ponzinibbio in January 2025, nearly 18 months ago.
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No longer facing Chiesa
WelterweightUFC
March 14, 2026
Harris won't fight Michael Chiesa at UFC Seattle on March 28 due to visa issues, per Nolan King of USA Today.
ANALYSIS
Harris was looking to snaps a two-bout losing streak in the UFC, but he'll need to wait a little longer to try to get back on the winning side of the Octagon. Meanwhile, Chiesa needs a new opponent, and hasn't had one announced yet.
Draws Chiesa in Seattle
WelterweightUFC
January 17, 2026
Harris will fight Michael Chiesa at UFC Seattle on March 28, Marcel Dorff of Eurosport.nl reports.
ANALYSIS
Harris will get another opportunity to capture his first UFC victory since 2023 after losing consecutive bouts to Khaos Williams and Santiago Ponzinibbio. Momentum will certainly not be in Harris' favor in March, as his next opponent will be looking to build upon a three-fight winning streak.
Fades following fast start
WelterweightUFC
January 11, 2025
Harris lost to Santiago Ponzinibbio via TKO (punches) at 3:13 of Round 3 at UFC Fight Night on Saturday in Las Vegas.
ANALYSIS
It's the second questionable stoppage in three fights, but again, it ultimately wouldn't have impacted the outcome had the bout seen the final bell. Harris was on fire early on. He torched Ponzinibbio in a Round 1 performance which could have earned him a 10-8 score. Yet, he began to absorb more damage as the fight progressed and by Round 3, he was on shaky legs. He was stumbling around after eating countless huge blows, and referee Kerry Hatley obviously felt he could no longer defend himself intelligently. Set to turn 38 years of age in July, Harris can't be giving away fights in which he's clearly ahead at any point. He's now lost two in a row.
Ponzinibbio up next
WelterweightUFC
November 9, 2024
Harris will fight Santiago Ponzinibbio at UFC Vegas 101 on Jan. 11, Marcel Dorff of Eurosport.nl reports.
ANALYSIS
Harris was quickly defeated by Khaos Williams during his most recent fight, though the former will have a solid chance to bounce back against Ponzinibbio, who has won just one of his previous five bouts.
Lasts 90 seconds in Vegas
WelterweightUFC
May 18, 2024
Harris lost to Khaos Williams via KO (punch) at 1:30 of Round 1 at UFC Fight Night on Saturday in Las Vegas.
ANALYSIS
Known for his grappling and submission game, Harris isn't the type of fighter who excels in wild, back-and-forth brawls. His opponent, on the other hand, is at his best in those situations. Therefore it should come as no surprise that it was Williams that got the better of the action when the two men were firing bombs at each other in the center of the Octagon. One sweeping right hand connected flush, and referee Dan Miragliotta was pulling Williams off Harris just moments later. It's a crushing result for Carlston, who at age 36 simply cannot afford to come up on the short end of pick 'em bouts such as this one.