UFC 245: Usman vs. Covington
Las Vegas, USA
14 Dec 2019
Women's Bantamweight
VS
46%
Vieira
54%
Aldana
Win Probability
KO/TKO
Round 1 · 4:51
Ketlen
Ketlen Vieira
"Fenomeno"
16 – 5
5'8"68" reachOrthodox34 yrsWell-Rounded
CFR 42
Irene
Irene Aldana
15 – 8
Well-Rounded38 yrsOrthodox68" reach5'9"
CFR 51

Combatrics Intelligence

Data-driven breakdown · fighter metrics

Edge: Aldana

This is a genuine toss-up — Vieira at 46% vs Aldana at 54% (CFR ratings). One of the hardest fights to call on the card.

Key angles

The CFR gap of 8 points suggests a clear performance difference on paper.

Aldana has beaten significantly higher-quality opposition — a QoV edge of 11 points.

Aldana has the striking edge in both volume and accuracy.

Vieira
Aldana
Physical Matchup
Height · Reach · Age · Stance
5'8"
Height
+5'9"
68"
Reach
68"
34+
Age
38
Orthodox
Stance
Orthodox
Vieira
Aldana
Composite Fighter Rating
Overall score combining performance, win quality, momentum & durability
42.2
50.5
43.7
Performance Avg
46.5
28
Quality of Victory
39
45
Momentum Score
81
Vieira
Aldana
Striking
Significant strikes per minute & accuracy
0.9
2.1
41%
Strike Accuracy
45%
1.3
Striking Style Score (/10)
4.9
0 KOs
KO Finishes
3 KOs
Strike targetStrike target
19
Head
13
1
Body
7
0
Leg
6
RangeRange
20Distance24
0Clinch0
0Ground2
Vieira
Aldana
Grappling
Takedowns, submissions & wrestling
—
—
—
Sub Attempts / fight
0.1
3.0
Grappling Style Score (/10)
2.2
2.1
Wrestling Style Score (/10)
1.5
0:00
Control Time (this fight)
0:00
0
Reversals
0
Vieira
Aldana
Durability / Chin
Resilience against knockouts and stoppages
70
88
Moderate
Verdict
Never stopped
1
KO/TKO Losses
0
0
Sub Losses
0
Avg R1.0 stoppage
KO round context
—
10 fights ago
Last KO loss
—
—
Strikes absorbed / min
—
15/21 fights
Chin rating based on
14/23 fights
Vieira
Aldana
Form & Momentum
Recent fight performance — most recent weighted 30%
45
81
W · Dec · R3
L · Dec · R3
W · Dec · R3
L · Dec · R3
W · Dec · R3
Last 5
L · Dec · R3
W · Dec · R3
L · Dec · R5
W · KO · R3
W · KO · R1
Vieira
Aldana
Finish Rate
Percentage of wins by KO/TKO or Submission
10%
50%
0
KO / TKO Wins
3
1
Submission Wins
1
9
Decision Wins
4

Style Fingerprint

Combatrics radar — 6 fighting dimensions scored 0–10

Vieira
Aldana
Striking1.3 / 4.9Volume8.5 / 5.1Grappling3.0 / 2.2Wrestling2.1 / 1.5Submission1.0 / 1.3Pressure2.7 / 5.2
Fighter 1
Fighter 2
1.3
Striking
KO power & stand-up volume
4.9
3.0
Grappling
Ground control & clinch
2.2
2.1
Wrestling
Takedown threat & defence
1.5
1.0
Submission
Submission attack frequency
1.3
2.7
Pressure
Clinch/ground work rate
5.2
8.5
Volume
Decision-pace fighting
5.1
Vieira
Strike Zones
Aldana
Vieira
Attacking
19HEAD1BODY0LEGS20 landed
Absorbing
13HEAD7BODY6LEGS26 absorbed
Aldana
Attacking
13HEAD7BODY6LEGS26 landed
Absorbing
19HEAD1BODY0LEGS20 absorbed
Targeting Overlap
🎯Vieira targets the head (95% of attacks) — Aldana absorbs 95% of strikes there
🎯Aldana targets the head (50% of attacks) — Vieira absorbs 50% of strikes there

Round by Round

This fight · per-round breakdown

Vieira
RND
Aldana
0/0R00/0
0/0R10/0

Vieira · QOF Timeline

Avg: 5.1
0104.5W4.5W5.2W4.5W2.3L4.5W5.6L5.4W4.6W6.1L4.5W7.6L5.8W6.0L5.4W2016-102019-122022-052025-052026-05
WinLossTrend

Aldana · QOF Timeline

Avg: 5.5
0105.5L5.8L4.5W4.5W5.5W6.1L4.5W5.4W5.6L5.1W6.8W6.7L5.2W6.0L2016-122019-052020-102023-122024-09
WinLossTrend

Vieira · Last 5

W · Dec · R3
Jacqueline CavalcantiRating 5.4
Decision
UFC Fight Night: Allen vs. Costa · 2026-05
L · Dec · R3
Norma DumontRating 6
Decision
UFC Fight Night: Garcia vs. Onama · 2025-11
W · Dec · R3
Macy ChiassonRating 5.8
Decision
UFC Fight Night: Blanchfield vs. Barber · 2025-05
L · Dec · R3
Kayla HarrisonRating 7.6
Decision
UFC 307: Pereira vs. Rountree Jr. · 2024-10
W · Dec · R3
Pannie KianzadRating 4.5
Decision
UFC Fight Night: Aspinall vs. Tybura · 2023-07

Aldana · Last 5

L · Dec · R3
Norma DumontRating 6
Decision
UFC 306: Riyadh Season Noche UFC · 2024-09
W · Dec · R3
Karol RosaRating 5.2
Decision
UFC 296: Edwards vs. Covington · 2023-12
L · Dec · R5
Amanda NunesRating 6.7
Decision
UFC 289: Nunes vs. Aldana · 2023-06
W · KO · R3
Macy ChiassonRating 6.8
KO/TKO
UFC 279: Diaz vs. Ferguson · 2022-09
W · KO · R1
Yana SantosRating 5.1
KO/TKO
UFC 264: Poirier vs. McGregor 3 · 2021-07

News & Media

Ketlen Vieira · Irene Aldana
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