All Fighters
Macy Chiasson
8W · 6L
Orthodox
Women's Bantamweight
Women's Featherweight
63% finish rate67% as favorite25% as underdog
1474
ELO Rating
Fighter overview
ELO RatingHow is ELO calculated?18-month recency decay · streak amplification · activity velocity · career-death penalty. Old champions can't hide behind past glory.Understanding our ELO →
1474.0Developing↘
Recency-weighted skill · finish-adjusted · streak-amplified
Division ELOHow is ELO calculated?18-month recency decay · streak amplification · activity velocity · career-death penalty. Old champions can't hide behind past glory.Understanding our ELO →
#13of 14 active
Age
35
Jul 27, 1991
Height
5'11" (180.34 cm)
Reach
182.88 cm
Win Rate
57.1%
Output & Defense
Rate-normalized career statistics (per 15 minutes, except strike rates which are per-minute)
Strikes landed / min
3.21
SLpM
Strikes absorbed / min
2.76
SApM (lower is better)
Net striking
+0.45
SLpM − SApM
Strike defense
44%
Opponent strikes evaded
Takedowns / 15 min
1.87
TD_Avg
Takedown defense
62%
Opponent TDs stuffed
Sub attempts / 15 min
0.40
Sub_Avg
Head-to-Head Comparison
Search for a fighter to compare side-by-side
Career statistics
Career Averages (per fight)
6.8
Sig. Strikes
1.4
Takedowns
0.7
Sub Attempts
How They Win
KO/TKO3 (38%)
Submission2 (25%)
Decision0 (0%)
Loss Vulnerability
KO/TKO1 (17%)
Submission1 (17%)
Decision0 (0%)
Betting Profile
Win rate when fighting as favorite vs underdog
As Favorite
67%
6W – 3L in 9 fights
As Underdog
25%
1W – 3L in 4 fights
ELO analysis
ELO Trajectory
Skill rating evolution — hover dots for fight details
Elo Changes
Rating gained or lost in each fight
lost to Ailin Perez
-18.21474
lost to Yana Santos
-9.51492
lost to Ketlen Vieira
-7.11502
def. Mayra Bueno Silva
+5.11509
def. Pannie Kianzad
+3.81504
lost to Irene Aldana
-1.41500
def. Norma Dumont
+1.01501
lost to Raquel Pennington
-0.81500
def. Marion Reneau
+0.41501
def. Shanna Young
+0.41501
lost to Lina Lansberg
-0.31500
def. Sarah Moras
+0.31501
def. Gina Mazany
+0.21500
def. Pannie Kianzad
+0.21500
Division ELO Rankings
Women's Bantamweight · Active fighters ranked by recency-weighted skill
Ailin Perez
1546
Kayla Harrison
1527
Yana Santos
1527
Klaudia Sygula
1522
Luana Carolina
1500
Julianna Pena
1496
Miesha Tate
1495
Montse Rendon
1492
Julia Avila
1490
Nora Cornolle
1489
Professional fight history
Fight History (14 fights)
vs Ailin Perez
UFC Fight Night: Moreno vs. Kavanagh · Feb 28, 2026
Loss
View Analysis →vs Yana Santos
UFC 320: Ankalaev vs. Pereira 2 · Oct 4, 2025
Loss
View Analysis →UFC Fight Night: Blanchfield vs. Barber · May 31, 2025
Loss
View Analysis →UFC 303: Pereira vs. Prochazka 2 · Jun 29, 2024
UFC Fight Night: Tuivasa vs. Tybura · Mar 16, 2024
vs Irene Aldana
UFC 279: Diaz vs. Ferguson · Sep 10, 2022
Loss
View Analysis →vs Norma Dumont
UFC 274: Oliveira vs. Gaethje · May 7, 2022
UFC Fight Night: Lewis vs. Daukaus · Dec 18, 2021
Loss
View Analysis →UFC Fight Night: Brunson vs. Holland · Mar 20, 2021
vs Shanna Young
UFC Fight Night: Anderson vs. Blachowicz · Feb 15, 2020
UFC Fight Night: Hermansson vs. Cannonier · Sep 28, 2019
Loss
View Analysis →vs Sarah Moras
UFC Fight Night: Iaquinta vs. Cowboy · May 4, 2019
vs Gina Mazany
UFC 235: Jones vs. Smith · Mar 2, 2019
The Ultimate Fighter: Heavy Hitters Finale · Nov 30, 2018