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Events · UFC 307: Pereira vs. Rountree Jr. · Ketlen Vieira vs Kayla Harrison
From the tape · 5 Oct 2024

Ketlen Vieira vs Kayla Harrison

UFC 307: Pereira vs. Rountree Jr. · Salt Lake City, Utah, USA
Result

Kayla Harrison beat Ketlen Vieira

Method
Decision - Unanimous
Round
3 of 3
Clock
5:00
Women's BantamweightMain cardReferee · Marc Goddard

We published no prediction for this bout. Everything on this page is the official record and the tape it was fought on — the result, the round-by-round counts, the judges’ cards where they exist and the sportsbook line where one was published. Our graded calls start in 2026 and live on the public record.

Red corner KetlenVieira“Fenomeno”Nova Uniao · Manaus, Amazonas
VSOn the tape
Blue corner KaylaHarrisonAmerican Top Team · Middletown, Ohio
Women's Bantamweight3 rounds5 Oct 2024
The story going in
  • 11 UFC bouts deep — 10 more than Harrison.
  • Is 22 points more accurate striking than Vieira.
16-5
Record
19-1
−1 yr33
Age
34
5' 8"
Height
5' 8"
+2″68″
Reach
66″
Orthodox
Stance
Southpaw
+1011
UFC bouts
1
1/812% of wins
Finishes
1/1100% of wins
Nova Uniao
Gym
American Top Team
Manaus, Amazonas
From
Middletown, Ohio
Vitals, record, nickname and camp come from the public UFC fighter register and are current, not a snapshot of fight night. UFC bouts, finish rate and every storyline line are counted off the official UFC fight record. A tick marks the side holding the raw edge in that row — longer reach, taller, younger, more bouts, a higher finish rate. It is a fact about the tape, not a prediction, and rows with no clean comparison (record, stance, gym, hometown) carry no tick at all. Any row we cannot fill on both sides is left out rather than half-drawn. Streaks, bout counts and finish rates are as they stood going into this fight — this bout and everything after it is excluded from the count.

Round by round

Every round the fight went, shaded by where the significant strikes actually landed — the takedowns, control time and knockdowns beside them, and how the three judges scored that round.

UFCStats · per round

3 rounds of tape

Round 15:00 of action
Ketlen Vieira5 sig landed
HEAD20%1 of 8BODY0%0 of 4LEGS80%4 of 4
Kayla Harrison17 sig landed
HEAD41%7 of 17BODY53%9 of 9LEGS6%1 of 1
5 of 16
Sig.
strikes
17 of 27
0 of 0
Take-
downs
1 of 2
0:00
Control
2:46
Distance 5Clinch 0Ground 0
Where it
happened
Distance 4Clinch 9Ground 4
Judges · this round · Vieira firstDerek Cleary9–10Sal D'Amato9–10Steve Faragher9–10
Round 25:00 of action
Ketlen Vieira14 sig landed
HEAD57%8 of 22BODY21%3 of 7LEGS21%3 of 3
Kayla Harrison15 sig landed
HEAD53%8 of 25BODY27%4 of 6LEGS20%3 of 4
14 of 32
Sig.
strikes
15 of 35
0 of 0
Take-
downs
0 of 2
0:00
Control
2:02
Distance 11Clinch 3Ground 0
Where it
happened
Distance 9Clinch 6Ground 0
Judges · this round · Vieira firstDerek Cleary9–10Sal D'Amato9–10Steve Faragher10–9
Round 35:00 of actionEnded 5:00
Ketlen Vieira5 sig landed
HEAD60%3 of 8BODY20%1 of 4LEGS20%1 of 1
Kayla Harrison23 sig landed
HEAD83%19 of 27BODY4%1 of 1LEGS13%3 of 4
5 of 13
Sig.
strikes
23 of 32
0 of 0
Take-
downs
1 of 4
0:00
Control
3:06
Distance 5Clinch 0Ground 0
Where it
happened
Distance 6Clinch 0Ground 17
Judges · this round · Vieira firstDerek Cleary9–10Sal D'Amato9–10Steve Faragher9–10

Significant strikes, takedowns, control time, knockdowns and submission attempts exactly as UFCStats recorded them for this bout, round by round. Zone percentages are that round’s landed head, body and leg counts over their own total — raw arithmetic, nothing modelled or smoothed. A round in which a fighter landed nothing shades empty and reads zero; it is never filled in from the round before.

The cards, totalled

The judges’ final totals, the media’s cards beside them, and how these judges usually score. Their round-by-round 10–9s are with the rounds above.

Official card

Unanimous Decision

Referee · Marc Goddard
Ketlen VieiraKayla Harrison
Official totals — Ketlen Vieira first
JudgeTotal
Derek Cleary2.0 avg spread · 42% wide27–30
Sal D'Amato2.1 avg spread · 46% wide27–30
Steve Faragher28–29

Each judge’s round-by-round scores sit with the round they belong to, in the round-by-round section above — switch a round there and the three cards for it change with the stats.

Media cards — 15 scored, Ketlen Vieira first · unofficial

Tyler Treese Sherdog.com27–30
Drake Riggs Uncrowned27–30
Dayne Fox Sherdog.com27–30
Sheehan SevereMMA.com27–30
Ryan Frederick WrestlingObserver.com27–30
Combat Press.com27–30
Jake Noecker Cageside Press27–30
Keith Shillan Sherdog.com27–30
Danny Segura MMAJunkie.com27–30
Daniel Yanofsky The Sporting News27–30
Steve Duncan mma.uno27–30
Zane Simon The MMA Vivisection27–30
Jay Pettry Sherdog.com28–29
Mike Fridley Sherdog.com28–29
Shakiel Mahjouri CBS Sports28–29

Fan vote · unofficial

30-27 Harrison · 50%29-28 Harrison · 45%30-28 Harrison · 3%30-26 Harrison · 1%29-28 Vieira · 1%

95 fan cards submitted to MMA Decisions.

Official cards come from the UFCStats fight record and MMA Decisions. Media cards and the fan vote are MMA Decisions’ own collection and are not official. Judge tendency figures are that judge’s whole recorded history, not this bout — they are context for how a card was scored, never a claim that it was scored wrongly.

Takedowns

Takedowns

The level change — head to head

Career UFC takedown rates. Red corner left, blue corner right.

Ketlen Vieira

1.31takedowns / 15 min
1.31 / 15m
TAKEDOWNS
2.84 / 15m
3.12 / 15m
ATTEMPTS
7.68 / 15m
42%
ACCURACY
37%
0.50 / 15m
SUB ATT
0.90 / 15m

Kayla Harrison

2.84takedowns / 15 min

Career UFC takedown rates exactly as UFCStats publishes them: takedowns landed per 15 minutes, completion rate, submission attempts per 15 minutes, and the share of takedowns tried on them that they stuffed. Attempts per 15 is the one derived figure — landed ÷ completion rate — and it is omitted wherever either input is missing. UFCStats writes 0% where no attempt was recorded at all, so a percentage of exactly zero reads “n/a” here rather than as a measured rate. “Field” is the average fighter in that weight class, or across every division where a class is too small to average. Rate bars run to the population’s 95th percentile (5.00 takedowns / 15m); a fighter above it pins the bar. Percentages are drawn on their own axis.

Ranked in Women's Bantamweight

The market story

Where the price started and where it finished — the sportsbook consensus, with the vig removed. We captured no price series for this bout, so there is no chart to draw.

Ketlen Vieira↓ −6.0pp
open 18.8%close 12.8%
Kayla Harrison↑ +6.0pp
open 81.2%close 87.2%
0%50%100%
OpenClosing consensus (BFO, vig removed)

Ketlen Vieira opened at 18.8% and closed at 12.8% (−6.0pp), with Kayla Harrison moving the other way by the same amount — the two are one de-vigged pair, so they always sum to 100%. There is no line between those two points because nobody recorded one: we hold the open and the close for this bout, not the days in between.

Show the numbers
CornerOpen (US)Close (US)Open %Close %Move
Ketlen Vieira40064718.8%12.8%−6.0pp
Kayla Harrison-649-105581.2%87.2%+6.0pp
Opening and closing moneylines from BestFightOdds (data/refs/bfo_fighter_moneylines.csv), one row per fighter per bout, de-vigged pairwise so the two corners sum to 100% · dated 2024-10-06 on the odds record (1d from the card date; the nearest day inside a two-day window is used, never a guess) · scraped 2026-06-10. No price series was captured for this bout, so no line is drawn between the two points.
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