Compare Casey O'Neill vs Erin Blanchfield — UFC matchup breakdown
Tale of the Tape
The biometric deltas where one side genuinely has an edge.
Activity & layoff
The recency dimension Tale of the Tape doesn't carry. How active each fighter has been, and how that compares to active peers in their division.
- Erin has 4 months more layoff
Division percentiles below rank both fighters against the Flyweight roster (206 fighters). Casey O'Neill fights at Flyweight; Erin Blanchfield at Women's Flyweight — Erin Blanchfield’s percentiles are measured against a division they don’t compete in, so read them with that in mind.
Recent form
Last five pro bouts (non-UFC fights dashed + tagged), current trajectory, and the level of opposition going into this matchup.
Schedule Score
Who they've faced × what they've done. Composite + components compared head-to-head, percentile-ranked against every UFC fighter w/ ≥3 resolved bouts.
Per-tier records + bout-by-bout
| Tier | Casey O'Neill | Erin Blanchfield |
|---|---|---|
| Top-5 | 1-1 | 3-1 |
| Top-15 | 3-1 | 4-0 |
| Cross-div ranked | 1-0 | — |
| Unproven | 1-0 | 1-0 |
- W vs Gabriella Fernandes#1462Mar 28, 2026 · Top-15
- W vs Luana Santos36Aug 17, 2024 · Cross-div ranked
- L vs Ariane da Silva52Dec 16, 2023 · Top-15
- L vs Jennifer Maia#979Mar 18, 2023 · Top-5
- W vs Roxanne Modafferi#1277Feb 12, 2022 · Top-5
- W vs Antonina Shevchenko#1564Oct 2, 2021 · Top-15
- W vs Lara Procopio8Jun 19, 2021 · Unproven
- W vs Shana Dobson#1565Feb 20, 2021 · Top-15
- W vs Tracy Cortez#872Nov 15, 2025 · Top-15
- W vs Rose Namajunas#585Nov 2, 2024 · Top-5
- L vs Manon Fiorot#393Mar 30, 2024 · Top-5
- W vs Taila Santos#488Aug 26, 2023 · Top-5
- W vs Jessica Andrade#393Feb 18, 2023 · Top-5
- W vs Molly McCann#1561Nov 12, 2022 · Top-15
- W vs JJ Aldrich51Jun 4, 2022 · Top-15
- W vs Miranda Maverick#1467Dec 11, 2021 · Top-15
- W vs Sarah Alpar8Sep 18, 2021 · Unproven
All figures are 0–100 ratings (shown as %), not percentages of anything literal. Schedule strength = the average quality of every UFC opponent faced (win or lose). Win quality = the average quality of the opponents actually beaten. The composite Schedule Score combines schedule strength (65%) with win quality (35%). Per-bout opponent quality is scored on rank-at-time-of-fight (champion 100, ranks 1–5 = 90→78, ranks 6–15 = 75→60), with cross-division and P4P signals layered on, falling back to opponent UFC record-at-time for unranked opponents. For fighters with limited UFC experience the headline is held toward a rookie baseline, so debut / low-sample fighters read lower than established names. UFC ranking data is sparse before December 2018, so legacy-era fighters score from record-at-time when ranks are missing.
Career splits
Striking matchup
Each fighter's offense mapped against the other's defense — where one attacks meets where the other gets hit, across head, body, and leg. Per 15 minutes of UFC fight time.
Evenly matched striking — no clear edge either way.
Where O'Neill attacks (green = high volume) vs where Blanchfield gets hit (red = vulnerable) — O'Neill’s green zones meeting Blanchfield’s red zones are the openings.
- Head77%99th519
- Body14%79th94
- Leg9%62nd64
Color = division rank · green elite → red low · % = share of strikes
- Head70%25th365
- Body15%56th76
- Leg15%33rd80
Color = division rank · green elite → red low · % = share absorbed · partly opponent-dependent
- Standing81%550
- Clinch5%31
- Ground14%96
- Standing95%496
- Clinch5%25
- Ground0%0
Each lane: the attacker’s strike rate (offense) vs the other’s rate absorbed (defense), graded on the division. The bar leans toward whoever wins the exchange — longer + greener = a bigger, higher-quality edge.
Full breakdown — all zones, both views
| Zone | Fighter | Landed / 15 | Accuracy | Absorbed / 15 | Career landed |
|---|---|---|---|---|---|
| Head | Casey O'Neill | elite — top of division69.9 | 47% | bottom of the division52.3 | 519 |
| Head | Erin Blanchfield | top 8% of division48.8 | 37% | well below average41.9 | 454 |
| Body | Casey O'Neill | top 21% of division14.4 | 78% | well below average14.1 | 94 |
| Body | Erin Blanchfield | above division average12.0 | 78% | above division average9.9 | 102 |
| Leg | Casey O'Neill | above division average10.1 | 94% | above division average6.8 | 64 |
| Leg | Erin Blanchfield | above division average9.9 | 89% | below division average9.4 | 87 |
Per-15-minute rates are sourced from UFCStats fight totals across each fighter’s UFC career. Division percentile is computed against every UFC fighter who has competed in this weight class with at least two recorded bouts. Lower “absorbed” values are better — the percentile is inverted so “top of division” always means better outcome.
Grappling matchup
Takedowns, submission threat, and control. Per 15 minutes of UFC fight time, with takedown defense as a percentage of opponent attempts stopped.
Each metric graded on the division — the bar leans toward whoever wins that part of the grappling exchange (longer + greener = a bigger edge).
Blanchfield has the grappling edge (+8).
Full breakdown — career grappling totals
| Metric | Casey O'Neill | Erin Blanchfield |
|---|---|---|
| Takedowns landed / 15career takedowns | 1.48 | 2.016 |
| Takedown accuracycareer landed / attempted | 35%8 / 23 | 34%16 / 47 |
| Takedown defensecareer stopped / faced | 70%14 / 20 | 78%18 / 23 |
| Submission attempts / 15career attempts | 0.74 | 0.97 |
| Control time / 15 (min)career total | 3.8 min21:30 | 5.8 min47:03 |
| Time controlled by opponent / 15 (min)career total | 1.8 min10:03 | 0.3 min2:35 |
All rates computed from UFCStats fight totals across each fighter’s UFC career. Takedown defense = opponent attempts stopped ÷ opponent total attempts. Control time figures are minutes the fighter spent in a dominant position per 15 minutes of fight time. Accuracy under 8 career attempts is shown raw and ungraded — too small a sample to rate against the division.
Finishing & durability
How often each fighter ends fights early — and how often they get put away. Outcomes view, not per-minute output.
When their fights end
every pro finish on the fight clockFinish & durability rates
Full professional career
Full method breakdown
| Outcome | Casey O'Neill | Erin Blanchfield |
|---|---|---|
| Wins | ||
| by KO / TKO | 4(36%) | 2(14%) |
| by submission | 2(18%) | 5(36%) |
| by decision | 5(45%) | 7(50%) |
| Losses | ||
| by KO / TKO | 0(0%) | 0(0%) |
| by submission | 1(50%) | 0(0%) |
| by decision | 1(50%) | 2(100%) |
Full professional career method splits, graded against the full-pro division distribution. Career KO losses are the total — clean knockouts and cut/injury stoppages can’t be separated outside the UFC corpus. Finish-time pace is UFC-only.
KO history
UFC fights only — knockout power and chin durability, head-to-head, then when the last finish landed, and on whom.
- Last time KO'dNever finished by strikes in the UFC
- Last time submittedvs Ariane da Silva2y 6mo agoUFC 296: Edwards vs. Covington · Dec 16, 2023 · R2 · 1:18
- Last time KO'dNever finished by strikes in the UFC
- Last time submittedNever submitted in the UFC
Pace & fade
How each fighter's work rate holds up as a fight wears on — round-by-round output (striking, takedown attempts, and control time combined), and whether they fade. The fade % compares round-3 output to round 1 over bouts that reached the third round.
Cardio edge to O'Neill: O'Neill builds (+10% per round through round 3) while Blanchfield holds steady (0% per round through round 3). Within fights that reached round 3, O'Neill lifts to 121% of round-1 output by round 3, Blanchfield 112%.
Rounds backed by fewer than 2 bouts are drawn smaller and dimmed with an n= count — a deep round seen in one or two fights is a thin sample, not a settled rate. Per-round bout counts are in the breakdown below.
Full per-round breakdown — both fighters
What drives the pace · per round
The composite output line above blends these three inputs. Splitting them out shows whether a fighter’s work rate is built on striking volume, takedown pressure, or top control — and which input fades.
| Round | Fighter | Output / min | Sig landed / min | Sig absorbed / min | TD att / min | Control | Bouts |
|---|---|---|---|---|---|---|---|
| R1 | Casey O'Neill | 8.5 | 6.8 | 6.0 | 0.31 | 19% | 8 |
| R1 | Erin Blanchfield | 8.0 | 5.7 | 4.5 | 0.34 | 30% | 9 |
| R2 | Casey O'Neill | 10.8 | 8.7 | 4.7 | 0.27 | 32% | 7 |
| R2 | Erin Blanchfield | 8.0 | 4.7 | 3.6 | 0.47 | 46% | 8 |
| R3 | Casey O'Neill | 10.5 | 8.9 | 5.9 | 0.17 | 27% | 4 |
| R3 | Erin Blanchfield | 8.0 | 4.5 | 3.3 | 0.44 | 53% | 5 |
| R4 | Casey O'Neill | — | — | — | — | — | — |
| R4 | Erin Blanchfield | 8.7 | 7.7 | 7.1 | 0.20 | 9% | 2 |
| R5 | Casey O'Neill | — | — | — | — | — | — |
| R5 | Erin Blanchfield | 6.9 | 4.2 | 4.9 | 0.30 | 45% | 2 |
Output / minis the headline work rate — significant strikes landed, plus 3 per takedown attempt, plus one per 15 seconds of control — so a takedown-and-grind round isn’t scored as idle the way bare striking volume would. The remaining columns are its components. Per-round rates use UFCStats per-round data (available for ~95% of bouts since 2008). Each round’s rates are averaged only over bouts that reached that round, so the bout count shrinks as rounds deepen. The final round of a finished fight is pro-rated by its actual length — a 2:30 stoppage counts as 2.5 minutes, not five — so an early finish doesn’t distort the per-minute pace.