Kayla Harrison vs.
Ketlen Vieira
Two full careers, measured against each man's own division and against each other — the tape, the read, and every number behind them.
The men, measured.
Frame, age, layoff and recent form — green marks the edge on each line.
What the numbers say.
Scouting notes, auto-generated — only stats deviating more than 25% from the division median make this list. No narratives, just deviations.
Who did they actually beat?
Full-career records re-graded by the tier of opposition — the same grading the Contender Series pick model uses. Records built on tier-4 competition are worth less than records built on killers.
Kayla Harrison
| Competition tier | W | L |
|---|---|---|
| Tier 1 — UFC / DWCS / PFL / Bellator / ONE / Rizin | 18 | 1 |
| Tier 3 — regional circuit | 1 | 0 |
Tier-weighted record quality: 2.52 · 18 tier-1/2 wins · 14 finish wins over 20 documented bouts
In the UFC: 3-0 against opponents who walked in above .500 · avg opponent walk-in record +4.0 wins over .500
Ketlen Vieira
| Competition tier | W | L |
|---|---|---|
| Tier 1 — UFC / DWCS / PFL / Bellator / ONE / Rizin | 10 | 5 |
| Tier 3 — regional circuit | 6 | 0 |
Tier-weighted record quality: 1.27 · 10 tier-1/2 wins · 6 finish wins over 21 documented bouts
In the UFC: 8-5 against opponents who walked in above .500 · avg opponent walk-in record +2.3 wins over .500
The stand-up battle.
Career totals; norms are the medians of each man's own division.
Significant strikes — landed & absorbed
Where the fight happens (share of sig. strike attempts)
Kayla Harrison
Distance 46.1% (norm 80.3%) · Clinch 12.3% (norm 9.7%) · Ground 41.6% (norm 7.5%)
Ketlen Vieira
Distance 89.0% (norm 80.3%) · Clinch 8.0% (norm 9.7%) · Ground 3.0% (norm 7.5%)
What they throw (share of sig. strike attempts by target)
Kayla Harrison
Head 79.5% (norm 75.2%) · Body 13.7% (norm 14.3%) · Legs 6.8% (norm 8.8%)
Ketlen Vieira
Head 87.5% (norm 75.2%) · Body 8.2% (norm 14.3%) · Legs 4.3% (norm 8.8%)
Zone accuracy matrix Landed / attempted by zone
Green ≥ division median, red below. UFCStats tracks position and target as separate splits.
| Zone | Harrison L/A | Acc | Women's Bantamweight med | Vieira L/A | Acc | Women's Bantamweight med |
|---|---|---|---|---|---|---|
| BY POSITION | ||||||
| At distance | 40 / 101 | 39.6% | 38.3% | 483 / 1376 | 35.1% | 38.3% |
| In the clinch | 24 / 27 | 88.9% | 73.3% | 99 / 123 | 80.5% | 73.3% |
| On the ground | 72 / 91 | 79.1% | 70.8% | 39 / 47 | 83.0% | 70.8% |
| BY TARGET | ||||||
| To the head | 97 / 174 | 55.7% | 37.7% | 474 / 1352 | 35.1% | 37.7% |
| To the body | 27 / 30 | 90.0% | 70.0% | 88 / 127 | 69.3% | 70.0% |
| To the legs | 12 / 15 | too few to rate | 80.9% | 59 / 67 | 88.1% | 80.9% |
Zones with fewer than 25 attempts are marked "too few to rate". Each fighter is measured against the median of leaderboard-eligible fighters in his own division (Women's Bantamweight: 40 fighters · Women's Bantamweight: 40 fighters).
What lands on them Opponents' accuracy against each man
Green ≤ division median — harder to hit than the typical man in his division.
| Zone | vs Harrison L/A | Opp acc | Women's Bantamweight med | vs Vieira L/A | Opp acc | Women's Bantamweight med |
|---|---|---|---|---|---|---|
| BY POSITION | ||||||
| At distance | 27 / 94 | 28.7% | 41.3% | 615 / 1400 | 43.9% | 41.3% |
| In the clinch | 3 / 3 | too few to rate | 74.7% | 154 / 192 | 80.2% | 74.7% |
| On the ground | 5 / 6 | too few to rate | 74.2% | 86 / 136 | 63.2% | 74.2% |
| BY TARGET | ||||||
| To the head | 21 / 76 | 27.6% | 38.1% | 371 / 1128 | 32.9% | 38.1% |
| To the body | 6 / 19 | too few to rate | 73.2% | 292 / 391 | 74.7% | 73.2% |
| To the legs | 8 / 8 | too few to rate | 80.9% | 192 / 209 | 91.9% | 80.9% |
The ground war.
Takedowns, control and submissions — career totals with each man's per-minute rates against his division norm.
Bars compare the two men's rates (per-minute / per-15 figures), not raw totals — Vieira has more cage time on record.