Ketlen Vieira def. Macy Chiasson (Unanimous Decision)
Ketlen Vieira defeated Macy Chiasson by Unanimous Decision in round 3 (5:00) in the Women's Featherweight bout of UFC Fight Night: Gamrot vs Klein, held Saturday, May 31, 2025 at Meta Apex, Las Vegas. The judges scored it 29-28, 30-27, 29-28, Ketlen Vieira won the decision.
Fight stats
By round
Judges' Scorecards
Media Scores
All 11 media scorecards▾
- Jay Pettry · Sherdog.com30-27Vieira
- Brian Knapp · Sherdog.com30-27Vieira
- Tyler Treese · Sherdog.com30-27Vieira
- Paul Fontaine · WrestlingObserver.com30-27Vieira
- Ryan Frederick · WrestlingObserver.com30-27Vieira
- Keith Shillan · Sherdog.com30-27Vieira
- CombatPress.com30-27Vieira
- Dayne Fox · Sherdog.com30-27Vieira
- Zane Simon · The MMA Vivisection30-27Vieira
- Steve Duncan · mma.uno30-27Vieira
- MMAMania.com30-27Vieira
Fan Scorecards
Scorecard data via mmadecisions.com
Betting Odds
Average moneyline across 19 sportsbooks.
| Sportsbook | Ketlen Vieira | Macy Chiasson |
|---|---|---|
| 4casters | +147 | -156 |
| 4Cx | +144 | -159 |
| Bet105 | +147 | -167 |
| BetAnything | +150 | -180 |
| BetMGM | -10000 | +1600 |
| BetOnline | +145 | -170 |
| BetRivers | +120 | -150 |
| BetUS | +138 | -165 |
| Betway | -10000 | +1000 |
| Bookmaker | +128 | -157 |
| Bovada | +145 | -170 |
| Caesars | -1600 | +800 |
| Circa | +155 | -180 |
| Cloudbet | +145 | -160 |
| DraftKings | -8500 | +2000 |
| FanDuel | -3500 | +1480 |
| MyBookie | -110 | -115 |
| Pinnacle | +139 | -158 |
| SXBet | +134 | -158 |
Odds are for information only. · Odds data: fightodds.io
Frequently asked questions
Who won Ketlen Vieira vs Macy Chiasson?
Ketlen Vieira defeated Macy Chiasson by Unanimous Decision in round 3 (5:00) in the Women's Featherweight bout of UFC Fight Night: Gamrot vs Klein, held Saturday, May 31, 2025 at Meta Apex, Las Vegas. The judges scored it 29-28, 30-27, 29-28, Ketlen Vieira won the decision.
What were the judges' scorecards for Ketlen Vieira vs Macy Chiasson?
The judges scored it 29-28, 30-27, 29-28, Ketlen Vieira won the decision.
Was Ketlen Vieira vs Macy Chiasson a robbery?
Public scoring backed the judges: 68% of 25 fan cards scored it for Ketlen Vieira; 100% of 11 media scores picked Ketlen Vieira.
Pre-fight comparison▾
Win probability
What the model gave each fighter going into the fight, from their pre-fight UFCalendar Power Index ratings. See the full Power Index
Fight DNA
Head to headUFCalendar's style model · Women's Bantamweight roster (52 fighters)
Radar scaled to this matchup · bars show the gap
Style shape
Biggest edge Macy Chiasson, Ground striking +44
Attribute by attribute
Attributes are rated 0-100 by UFCalendar's style model.
Tale of the Tape
Striking Profile
Grappling Profile
Recent form (last 5 fights)
- WUFC Fight Night: Allen vs Costa · May 16, 2026Unanimous Decision · R3 · 5:00 · Women's Bantamweight
- LUFC Fight Night: Garcia vs Onama · Nov 1, 2025Split Decision · R3 · 5:00 · Women's Bantamweight
- WUFC Fight Night: Gamrot vs Klein · May 31, 2025Unanimous Decision · R3 · 5:00 · Women's Featherweight
- LUFC 307: Pereira vs Rountree Jr. · Oct 5, 2024Unanimous Decision · R3 · 5:00 · Women's Bantamweight
- WUFC Fight Night: Aspinall vs Tybura · Jul 22, 2023Unanimous Decision · R3 · 5:00 · Women's Bantamweight
- LUFC Fight Night: Moreno vs Kavanagh · Feb 28, 2026Unanimous Decision · R3 · 5:00 · Women's Bantamweight
- LUFC 320: Ankalaev vs Pereira 2 · Oct 4, 2025Unanimous Decision · R3 · 5:00 · Women's Bantamweight
- LUFC Fight Night: Gamrot vs Klein · May 31, 2025Unanimous Decision · R3 · 5:00 · Women's Featherweight
- WUFC 303: Pereira vs Procházka 2 · Jun 29, 2024TKO · R2 · 1:58 · Women's Bantamweight
- WUFC Fight Night: Tuivasa vs Tybura · Mar 16, 2024Submission · R1 · 3:54 · Women's Bantamweight
Common Opponents
- vs
- vs
- vs