Ketlen Vieira

Fenomeno

Brazil

Gets no help from judges in defeat
BantamweightUFC
November 1, 2025
Vieira lost to Norma Dumont via split decision (28-29, 29-28, 28-29) at UFC Fight Night on Saturday in Las Vegas.
ANALYSIS
It's not the worse decision we've ever seen, but it sure feels as if Vieira deserved a better fate. She landed one takedown in each of the first two rounds and was seemingly up 20-18 heading into the final frame. Dumont definitely won Round 3, but two of the three judges felt Vieira didn't do enough over the first 10 minutes to earn the decision. It's a crushing loss for Ketlen, who at age 34, hasn't managed to string together back-to-back wins since November 2021 to May 2022. She's still plenty competitive most every time out, but that's not going to be enough moving forward.
Read More News
Fight Log
Loading Fight Log...
Recent RotoWire Articles Featuring Ketlen Vieira See More
UFC Vegas 110 Preview and Predictions: The MMA Mashup
38 days ago
The best MMA bets, top DFS picks across multiple sites, and predictions for this weekend's UFC Vegas 110 card are live on RotoWire before Saturday's international event
UFC Vegas 110 Garcia vs. Onama DFS Analysis: Drake's Takes
38 days ago
The top UFC betting and DFS plays for this weekend's UFC Vegas 110 card are up, as well as breakdowns of betting and lineup strategy, plus predictions for the entire event.
DraftKings UFC Picks: UFC Vegas 110 DFS Preview
40 days ago
Get top DraftKings MMA DFS picks and strategy for UFC Vegas 110: Onama vs. Garcia. Build winning lineups with our preview, analysis & fighter breakdowns.
UFC 320 Preview and Predictions: The MMA Mashup
66 days ago
The best MMA bets, top DFS picks across multiple sites, and predictions for this weekend's UFC 320 card are live on RotoWire before Saturday's international event
DraftKings UFC Picks: UFC 316 DFS Preview
187 days ago
Get top DraftKings MMA DFS picks and strategy for UFC 316: Sean O'Malley vs. Merab Dvalishvili. Build winning lineups with our preview, analysis & fighter breakdowns.
More Fantasy News
New opponent scheduled
BantamweightUFC
August 12, 2025
Vieira is scheduled to compete against Norma Dumont in a bantamweight fight at UFC Vegas 110 on Nov. 1, per Marcel Dorff of Eurosport.nl.
ANALYSIS
For half a year, Vieira had been dealing with a debacle in terms of trying to fight Macy Chaisson. However, that is no longer an issue, especially after Vieira outlasted Chaisson in May. Up next for Vieira is Dumont, previously scheduled to fight a former UFC champion in Raquel Pennington.
Gets right back in win column
BantamweightUFC
May 31, 2025
Vieira defeated Macy Chiasson via unanimous decision (29-28, 29-28, 30-27) at UFC Fight Night on Saturday in Las Vegas.
ANALYSIS
Vieira had weight cutting issues entering this fight, forcing it to be moved from bantamweight to featherweight. It ended up being a huge break for her in the end. Ketlen failed on her lone takedown attempts, but still managed to rack up 10:06 worth of control time. She didn't land many notable offensive blows, but when you combine the control time with a 106-52 edge in total strikes landed, you're going to win a decision. Vieira has alternated wins and losses in her past five fights dating back to May 2022.
Chiasson bout now featherweight
BantamweightUFC
May 30, 2025
Vieira is scheduled to compete against Ketlen Vieira in a featherweight fight at UFC Vegas 107 on Saturday, according to Nolan King of MMA Junkie.
ANALYSIS
Neither party has publicly disclosed why their scheduled fight was moved up a weight class from bantamweight. Vieira has not fought at featherweight, unlike Chiasson, who fought there in 2021.
Chiasson fight back on tap
BantamweightUFC
April 2, 2025
Vieira will take on Macy Chiasson in a bantamweight bout at UFC Vegas 107 on May 31, Marcel Dorff of Eurosport.nl reports.
ANALYSIS
Vieira was expected to fight Chiasson twice in the past, in Jan. 2023 and Feb. 2025, but both fights got canceled. It remains to be seen if this one will actually go through. Vieira is looking to bounce back after losing her most recent bout to Kayla Harrison, whereas Chiasson has won her last two fights.
Chiasson fight canceled
BantamweightUFC
February 13, 2025
Vieira's bout against Macy Chiasson has been removed from the card at UFC Seattle, per Damon Martin of MMAFighting.com.
ANALYSIS
The bout was canceled due to an undisclosed injury suffered by Chiasson. It is thus far unknown when or if the fight will be rescheduled.