Women's Featherweight
3 Rounds
Ketlen Vieira won · U-DEC R3
UFC Event·Saturday, May 31, 2025·Las Vegas, Nevada, USA, USA
Style matchupKetlen Vieira: Well-roundedvsMacy Chiasson: Well-rounded
Well-rounded vs well-rounded. Usually decided by who imposes their gameplan first.
Model Prediction: Ketlen Vieira wins(56.3%)
Actual result: Ketlen Vieira wins · Model version: ufc_v4_pure_xgboost_20260517_121258
Correct
Scouting Report
Auto-generated signals worth knowing before you read the deep stats below.
- Ketlen Vieira has 28pp better takedown defense — controls where the fight happens.
- Macy Chiasson has a 10cm reach advantage.
Tale of the Tape
Ketlen Vieira
Red Corner
VS
Macy Chiasson
Blue Corner
+122
(45%)
Vegas Odds
-144
(59%)
34
Age
34
Orthodox
Stance
Orthodox
5'8"
Height
5'11"
172.72 cm
Reach
182.88 cm
Recent Form
Last 5 fights for each fighter — most recent on the right. Hover any result for the matchup.
Ketlen VieiraL2 streak
oldest →latest
W
vs Holly Holm · May 22L
vs Raquel Pennington · Jan 23W
vs Pannie Kianzad · Jul 23L
vs Kayla Harrison · Oct 24L
vs Norma Dumont · Nov 25Macy ChiassonL2 streak
oldest →latest
L
KOvs Irene Aldana · Sep 22W
SUBvs Pannie Kianzad · Mar 24W
KOvs Mayra Bueno Silva · Jun 24L
vs Yana Santos · Oct 25L
vs Ailin Perez · Feb 26Output & Defense Comparison
Rate-normalized career statistics. Bold side has the edge per metric.
Ketlen VieiraMetricMacy Chiasson
2.76
Strikes / min
3.21
3.75
Strikes absorbed / min
2.76
50%
Strike defense
44%
1.33
TDs / 15 min
1.87
90%
Takedown defense
62%
0.60
Sub atts / 15 min
0.40
Net striking (SLpM − SApM)
-0.99Δ 1.44 — meaningful gap+0.45
Statistical Profile
Career averages and model features. Bigger shape = stronger across measured dimensions.
Ketlen VieiraMacy Chiasson
Recent Elo Trajectory
Last 10 fights for each fighter, aligned right (most recent on the right).
Ketlen Vieira(10 fights)Macy Chiasson(10 fights)
Model Feature Differentials (Red − Blue)
RedElo RatingBlue
-14.914.9
RedLayoff (days)Blue
-98.098.0
RedForm ScoreBlue
-1.21.2
RedStriker ScoreBlue
+0.0-0.0
RedGrappler ScoreBlue
+0.1-0.1
Ketlen Vieira
StanceOrthodox
Height68.0"
Reach68.0"
Fights14
Macy Chiasson
StanceOrthodox
Height71.0"
Reach72.0"
Fights14