Main
Women's Bantamweight
Ketlen Vieira vs Kayla Harrison
UFC 307: Pereira vs. Rountree Jr.
·Delta Center
Statlab take
baseline
Clear edge
Confidence: High
Ketlen Vieira
Kayla Harrison
37%
63%
Why
68"
Reach
Δ 2"
66"
33
Age
Δ 1y
34
17-5
Career record
Δ 18 pp
20-1
W1
Current streak
W1
11
UFC fights in our DB
1
Logistic-regression model trained on ~5,000 UFC/DWCS fights since 2016 (71.9% test accuracy). The "Why" panel shows interpretable inputs; the headline probability comes from the model.
Statlab projections
Actual result
Decision - Unanimous · Round 3
Vieira: 24 sig / 0 TD ·
Harrison: 55 sig / 2 TD
Ketlen Vieira
Kayla Harrison
52
Sig strikes landed
54
113
Sig strikes attempted
99
75
Total strikes landed
84
0.9
Takedowns landed
2.8
2.8
Takedowns attempted
4.7
-0.10
Knockdowns
0.20
113s
Control time
284s
Method
Decision
70%
KO/TKO
12%
Submission
19%
Stat regressor (GBT MultiOutput) trained on 8348 fighter-fight rows. Per-stat MAE vs naive-mean baseline: SigStrikesLanded: 25.4 (naive 28.2); SigStrikesAttempted: 52.3 (naive 59.4); TakedownsLanded: 1.1 (naive 1.3); TakedownsAttempted: 2.5 (naive 3.0); Knockdowns: 0.3 (naive 0.3); ControlTimeSeconds: 113.9 (naive 131.8); TotalStrikesLanded: 33.8 (naive 37.1).
Red corner
W1
Ketlen Vieira
"Fenomeno"
17-5
Career record
Height
68"
Reach
68"
Stance
Orthodox
Age
33
In our database
11 fights · 8-3
Last 5
W
UFC Fight Night: Aspinall vs. T…
—
L
UFC Fight Night: Strickland vs.…
—
W
UFC Fight Night: Holm vs. Vieira
—
W
UFC Fight Night: Vieira vs. Tate
—
L
UFC Fight Night: Blaydes vs. Le…
—
Blue corner
W1
Kayla Harrison
20-1
Career record
Height
68"
Reach
66"
Stance
Southpaw
Age
34
In our database
1 fight · 1-0
Last 1
W
UFC 300: Pereira vs. Hill
—