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JJ Aldrich

Women's Flyweight · REAL v1.0 (registered) #16; v1.1 (shadow) #19

Descriptive profile. The resume rank is what has been earned; these statistics are context, not a prediction. A test on Oct 20, 2026 found that career statistics add nothing reliable to age, layoff and experience as predictors of the next result (experiments/REGISTER.md, EXP-2026-10-20-14).

Weight band 14-17: the 10th to 90th percentile of her position across weight vectors drawn near the 70/30 weights. Rating 1,530, deviation 117: measured from 18 UFC bouts; a one-bout newcomer sits near 290.

Age 34 (born 1992-09-29) · Height 5 ft 5 in (165 cm) · Reach 67 in (170 cm) · Stance Southpaw · 50 days since last bout (2026-09-12) · Last five 3-2 · Streak L1

Why she is ranked here

Rating 1,530 is the division's 22nd highest of 37 board fighters; the ledger stands at -2.0 (less 2.0 for other losses outside the top 5; losses count for three years); 0 quality wins in 15 years, 0 over top-10 opponents; no form penalty (3-2 last five). Score -0.07 = -0.03 (rating term, 70% weight) -0.04 (ledger term, 30% weight) -0.00 (form penalty); score order put her at #19; the head-to-head rule (the winner of the most recent meeting within three years moves directly above the loser when ranked at most three places behind, six within a year) placed her #16.

TermValueDetail
Score-0.0770% rating term + 30% ledger term - form penalty
Rating term-0.03resume rating 1,530, scaled against the division's interdecile range
Ledger term-0.04quality ledger -2.0: +0.0 QW +0.0 proof -0.0 blowout -2.0 weak
Form penalty0.00last five 3-2
Quality wins, 15 years00 over top-10 opponents, 0 over top-15
Placementscore order #19; head-to-head -> #16v1.0 (registered)
Shadow board v1.1#19score -0.28; score order #22; placement rules -> #19

Rules, weights and worked examples: methodology.

Last ten bouts

DateEventOpponentOpp. official rankResultMethodRoundModel p
2026-09-12Noche UFC: Silva vs. DelgadoRegina TarinunrankedLunanimous decision3 (5:00)52%
2026-04-18UFC Fight Night: Burns vs. MalottJamey-Lyn HorthunrankedWunanimous decision3 (5:00)38%
2025-03-01UFC Fight Night: Kape vs. AlmabayevAndrea LeeunrankedWunanimous decision3 (5:00)42%
2024-05-11UFC Fight Night: Lewis vs. NascimentoVeronica HardyunrankedLunanimous decision3 (5:00)47%
2023-10-07UFC Fight Night: Dawson vs. GreenMontana De La RosaunrankedWunanimous decision3 (5:00)48%
2023-08-26UFC Fight Night: Holloway vs. The Korean ZombieLiang NaunrankedWKO/TKO2 (4:49)60%
2023-03-11UFC Fight Night: Yan vs. DvalishviliAriane da SilvaunrankedLunanimous decision3 (5:00)66%
2022-06-04UFC Fight Night: Volkov vs. RozenstruikErin BlanchfieldunrankedLsubmission2 (2:38)34%
2022-03-12UFC Fight Night: Santos vs. AnkalaevGillian RobertsonunrankedWunanimous decision3 (5:00)45%
2021-08-28UFC Fight Night: Barboza vs. ChikadzeVanessa DemopoulosunrankedWunanimous decision3 (5:00)47%

Opp. official rank = the UFC media-panel rank of the opponent on the date (C champion, #1 to #15, unranked; n/a before Feb 2013 or where no official board existed). Model p = the predictive model's pre-fight win chance for her (frozen performance-adjusted Elo; bouts before 2020 were in its tuning sample). Linked opponents have a profile.

Career statistics

Through 2026-10-31, UFC bouts only. Percentile = share of the 37 board fighters at Women's Flyweight at or below this value; high is a position in the division, not a verdict.

Output
Significant strikes landed per minute3.93(51st percentile at Women's Flyweight)
Significant strike accuracy47%(59th percentile at Women's Flyweight)
Knockdowns scored per 15 minutes0.00(51st percentile at Women's Flyweight)
Share of wins by finish9%(21st percentile at Women's Flyweight)
Defence and damage
Significant strikes absorbed per minute4.39(68th percentile at Women's Flyweight)
Significant strike defence62%(81st percentile at Women's Flyweight)
Knockdowns suffered per 15 minutes0.00(54th percentile at Women's Flyweight)
Significant strikes absorbed, career1,099(97th percentile at Women's Flyweight)
KO/TKO losses1 (last 2019-03-23, 2,780 days ago)(89th percentile at Women's Flyweight)
Submission losses1(100th percentile at Women's Flyweight)
KO/TKO losses per bout over 10 years, each weighted down by the finisher's danger0.017(59th percentile at Women's Flyweight)
Grappling
Takedowns landed per 15 minutes0.66(30th percentile at Women's Flyweight)
Takedown defence68%(53rd percentile at Women's Flyweight)
Share of cage time in control16%(43rd percentile at Women's Flyweight)
Share of significant strikes landed in the clinch or on the ground20%(49th percentile at Women's Flyweight)
Stylemixed (2.8 takedown attempts per 15 min; 16% control)
Career stage
Age34.1(69th percentile at Women's Flyweight)
Age at UFC debut24.2(25th percentile at Women's Flyweight)
Years since UFC debut9.9(84th percentile at Women's Flyweight)
UFC bouts18(95th percentile at Women's Flyweight)
Cage time, minutes250(95th percentile at Women's Flyweight)
Bouts per year, last three years1.3(68th percentile at Women's Flyweight)
Days since last bout50(41st percentile at Women's Flyweight)

Board position since Oct 2023

C1020304020252026Oct 2023Oct 20262023-10-06: #26, Women's Flyweight2023-10-13: #21, Women's Flyweight2023-10-20: #21, Women's Flyweight2023-11-03: #21, Women's Flyweight2023-11-10: #21, Women's Flyweight2023-11-17: #21, Women's Flyweight2023-12-01: #20, Women's Flyweight2023-12-08: #20, Women's Flyweight2023-12-15: #19, Women's Flyweight2024-01-12: #20, Women's Flyweight2024-01-19: #20, Women's Flyweight2024-02-02: #22, Women's Flyweight2024-02-09: #22, Women's Flyweight2024-02-16: #22, Women's Flyweight2024-02-23: #21, Women's Flyweight2024-03-01: #21, Women's Flyweight2024-03-08: #21, Women's Flyweight2024-03-15: #21, Women's Flyweight2024-03-22: #21, Women's Flyweight2024-03-29: #22, Women's Flyweight2024-04-05: #22, Women's Flyweight2024-04-12: #22, Women's Flyweight2024-04-26: #22, Women's Flyweight2024-05-03: #24, Women's Flyweight2024-05-10: #25, Women's Flyweight2024-05-17: #28, Women's Flyweight2024-05-31: #28, Women's Flyweight2024-06-07: #28, Women's Flyweight2024-06-14: #29, Women's Flyweight2024-06-21: #30, Women's Flyweight2024-06-28: #30, Women's Flyweight2024-07-12: #30, Women's Flyweight2024-07-19: #31, Women's Flyweight2024-07-26: #31, Women's Flyweight2024-08-02: #30, Women's Flyweight2024-08-09: #30, Women's Flyweight2024-08-16: #30, Women's Flyweight2024-08-23: #30, Women's Flyweight2024-09-06: #31, Women's Flyweight2024-09-13: #31, Women's Flyweight2024-09-27: #31, Women's Flyweight2024-10-04: #31, Women's Flyweight2024-10-11: #31, Women's Flyweight2024-10-18: #31, Women's Flyweight2024-10-25: #31, Women's Flyweight2024-11-01: #31, Women's Flyweight2024-11-08: #32, Women's Flyweight2024-11-15: #32, Women's Flyweight2024-11-22: #32, Women's Flyweight2024-12-06: #33, Women's Flyweight2024-12-13: #32, Women's Flyweight2025-01-10: #32, Women's Flyweight2025-01-17: #32, Women's Flyweight2025-01-31: #32, Women's Flyweight2025-02-07: #32, Women's Flyweight2025-02-14: #32, Women's Flyweight2025-02-21: #31, Women's Flyweight2025-02-28: #31, Women's Flyweight2025-03-07: #19, Women's Flyweight2025-03-14: #19, Women's Flyweight2025-03-21: #21, Women's Flyweight2025-03-28: #21, Women's Flyweight2025-04-04: #21, Women's Flyweight2025-04-11: #22, Women's Flyweight2025-04-25: #22, Women's Flyweight2025-05-02: #22, Women's Flyweight2025-05-09: #22, Women's Flyweight2025-05-16: #24, Women's Flyweight2025-05-30: #23, Women's Flyweight2025-06-06: #21, Women's Flyweight2025-06-13: #21, Women's Flyweight2025-06-20: #21, Women's Flyweight2025-06-27: #21, Women's Flyweight2025-07-11: #20, Women's Flyweight2025-07-18: #22, Women's Flyweight2025-07-25: #22, Women's Flyweight2025-08-01: #21, Women's Flyweight2025-08-08: #21, Women's Flyweight2025-08-15: #21, Women's Flyweight2025-08-22: #20, Women's Flyweight2025-09-05: #18, Women's Flyweight2025-09-12: #18, Women's Flyweight2025-09-26: #18, Women's Flyweight2025-10-03: #18, Women's Flyweight2025-10-10: #18, Women's Flyweight2025-10-17: #18, Women's Flyweight2025-10-24: #18, Women's Flyweight2025-10-31: #18, Women's Flyweight2025-11-07: #18, Women's Flyweight2025-11-14: #18, Women's Flyweight2025-11-21: #18, Women's Flyweight2025-12-05: #18, Women's Flyweight2025-12-12: #19, Women's Flyweight2026-01-23: #18, Women's Flyweight2026-01-30: #18, Women's Flyweight2026-02-06: #18, Women's Flyweight2026-02-20: #17, Women's Flyweight2026-02-27: #17, Women's Flyweight2026-03-06: #17, Women's Flyweight2026-03-13: #16, Women's Flyweight2026-03-20: #16, Women's Flyweight2026-03-27: #16, Women's Flyweight2026-04-03: #17, Women's Flyweight2026-04-10: #19, Women's Flyweight2026-04-17: #19, Women's Flyweight2026-04-24: #16, Women's Flyweight2026-05-01: #16, Women's Flyweight2026-05-08: #16, Women's Flyweight2026-05-15: #16, Women's Flyweight2026-05-29: #16, Women's Flyweight2026-06-05: #16, Women's Flyweight2026-06-13: #14, Women's Flyweight2026-06-19: #14, Women's Flyweight2026-06-26: #14, Women's Flyweight2026-07-10: #16, Women's Flyweight2026-07-17: #14, Women's Flyweight2026-07-24: #14, Women's Flyweight2026-07-31: #14, Women's Flyweight2026-08-07: #14, Women's Flyweight2026-08-14: #14, Women's Flyweight2026-08-21: #14, Women's Flyweight2026-08-28: #14, Women's Flyweight2026-09-04: #14, Women's Flyweight2026-09-11: #14, Women's Flyweight2026-09-18: #15, Women's Flyweight2026-09-25: #15, Women's Flyweight2026-09-26: #15, Women's Flyweight2026-10-03: #15, Women's Flyweight2026-10-10: #14, Women's Flyweight2026-10-17: #15, Women's Flyweight2026-10-24: #15, Women's Flyweight2026-10-31: #16, Women's Flyweight#16

Position on the registered v1.0 board at each weekly snapshot (C = title holder or reserved, drawn at the top; lower is better).

Predictive rating by bout

1,4001,4501,5001,5502019202120232025Dec 2016Oct 20262016-12-09: 1,438 (L vs Juliana Lima)2017-06-10: 1,473 (W vs Chan-Mi Jeon)2018-01-14: 1,516 (W vs Danielle Taylor)2018-08-04: 1,536 (W vs Polyana Viana)2019-03-23: 1,475 (L vs Maycee Barber)2019-10-12: 1,498 (W vs Lauren Mueller)2020-01-18: 1,467 (L vs Sabina Mazo)2021-03-13: 1,482 (W vs Cortney Casey)2021-08-28: 1,517 (W vs Vanessa Demopoulos)2022-03-12: 1,538 (W vs Gillian Robertson)2022-06-04: 1,526 (L vs Erin Blanchfield)2023-03-11: 1,456 (L vs Ariane da Silva)2023-08-26: 1,490 (W vs Liang Na)2023-10-07: 1,498 (W vs Montana De La Rosa)2024-05-11: 1,491 (L vs Veronica Hardy)2025-03-01: 1,528 (W vs Andrea Lee)2026-04-18: 1,543 (W vs Jamey-Lyn Horth)2026-09-12: 1,521 (L vs Regina Tarin)1,521

Rating after each UFC bout from the frozen predictive model (performance-adjusted Elo, data/processed/elo_history.csv; a debut starts at 1,500). The resume rating's history is not stored, so this is the predictive line, which is a different number from the resume rating in the header.

Trajectory

Recent performances are in line with the rating (-6 points).

ComponentPointsMeaning
Age component-16what fighters aged 34.1 typically run relative to their rating (population curve, all UFC bouts since 2011)
Own recent results+9her recency-weighted mean and trend over 18 bouts, shrunk toward zero; trend +1 points a year
Combined-6the rating's likely distance from her current performance level, in rating points
Readingin line with ratingahead of, in line with (within 30 points), or behind the rating

Performance relative to the rating, by age

-1.0-0.5+0.0+0.5+1.0232425262728293031323334352016-12-09 (age 24.2): L vs Juliana Lima, residual -0.362017-06-10 (age 24.7): W vs Chan-Mi Jeon, residual +0.292018-01-14 (age 25.3): W vs Danielle Taylor, residual +0.182018-08-04 (age 25.8): W vs Polyana Viana, residual +0.192019-03-23 (age 26.5): L vs Maycee Barber, residual -0.442019-10-12 (age 27.0): W vs Lauren Mueller, residual +0.162020-01-18 (age 27.3): L vs Sabina Mazo, residual -0.112021-03-13 (age 28.5): W vs Cortney Casey, residual +0.122021-08-28 (age 28.9): W vs Vanessa Demopoulos, residual +0.342022-03-12 (age 29.4): W vs Gillian Robertson, residual +0.382022-06-04 (age 29.7): L vs Erin Blanchfield, residual -0.402023-03-11 (age 30.4): L vs Ariane da Silva, residual -0.482023-08-26 (age 30.9): W vs Liang Na, residual +0.442023-10-07 (age 31.0): W vs Montana De La Rosa, residual +0.352024-05-11 (age 31.6): L vs Veronica Hardy, residual -0.172025-03-01 (age 32.4): W vs Andrea Lee, residual +0.392026-04-18 (age 33.5): W vs Jamey-Lyn Horth, residual +0.022026-09-12 (age 34.0): L vs Regina Tarin, residual -0.16-0.01

Each dot is one decided UFC bout at her age then: the performance score minus the rating's expectation, on the score's own scale from -1 to +1 (filled = win, hollow = loss; above zero is better than the rating implied; a finish as a slight favourite is about +0.45). The dashed line is the population curve for all fighters; the solid line is this fighter's own fitted level and trend as of the data date, weighted toward recent bouts. One unit sustained over many bouts corresponds to about 695 rating points; a single bout's residual is noisy.

Held-out evidence (walk-forward 2016 to 2026, EXP-2026-10-21-01): the age curve held in every test year; the individual component is a weak signal (correlation 0.06 with the next bout's residual; among fighters aged 33 or over, the lowest predicted quartile won 38% of next bouts against 53% expected, the highest 48% against 52%) and adds nothing to bout prediction beyond the shadow model. No board uses any of it: the rankings answer who has earned the place, not who wins next (EXP-2026-10-20-09). Method: src/mmalab/decline.py; settings: config/decline.yaml (expectation from the resume rating; one unit of residual is about 695 rating points).

Context flags

Descriptive only. Each line is a population fact about fighters like her, not a forecast for her; the register entries hold the measurements.

REAL v1.0 (registered method) · build c166ee8 · data through 2026-10-31 · page built 2026-11-06 · changelog. Independent fan research project built on public UFCStats data. Not affiliated with, sponsored or endorsed by UFC, Zuffa, LLC, TKO Group Holdings, or any athlete. All trademarks belong to their owners and are used only to identify athletes and events.