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Amanda Ribas

Women's Strawweight · REAL v1.0 (registered) #43; v1.1 (shadow) #36

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 43-43: the 10th to 90th percentile of her position across weight vectors drawn near the 70/30 weights (the position does not depend on the weights). Rating 1,524, deviation 124: measured from 13 UFC bouts; a one-bout newcomer sits near 290.

Age 33 (born 1993-08-26) · Height 5 ft 4 in (163 cm) · Reach 66 in (168 cm) · Stance Orthodox · 463 days since last bout (2025-07-26) · Last five 1-4 · Streak L3

Why she is ranked here

Rating 1,524 is the division's 28th highest of 49 board fighters after an inactivity penalty of 28 points for 463 days without a bout; the ledger stands at -1.0 (+1.8 from quality wins, +0.3 from close losses to top-5 fighters, less 1.0 for blowout losses, less 2.0 for other losses outside the top 5; losses count for three years); 3 quality wins in 15 years, 2 over top-10 opponents; form penalty 0.60 for a 1-4 last five. Score -0.66 = -0.07 (rating term, 70% weight) +0.00 (ledger term, 30% weight) -0.60 (form penalty); score order put her at #43.

TermValueDetail
Score-0.6670% rating term + 30% ledger term - form penalty
Rating term-0.07resume rating 1,524 (raw 1,552 less inactivity penalty 28), scaled against the division's interdecile range
Ledger term+0.00quality ledger -1.0: +1.8 QW +0.3 proof -1.0 blowout -2.0 weak
Form penalty0.60last five 1-4
Quality wins, 15 years32 over top-10 opponents, 3 over top-15
Placementscore order #43v1.0 (registered)
Shadow board v1.1#36score -0.50; score order #36

Rules, weights and worked examples: methodology.

Last ten bouts

DateEventOpponentOpp. official rankResultMethodRoundModel p
2025-07-26UFC Fight Night: Whittaker vs. De RidderTabatha Ricci#10LKO/TKO2 (2:59)56%
2025-01-11UFC Fight Night: Dern vs. Ribas 2Mackenzie Dern#6Lsubmission3 (4:56)60%
2024-03-23UFC Fight Night: Ribas vs. NamajunasRose NamajunasunrankedLunanimous decision5 (5:00)38%
2023-11-18UFC Fight Night: Allen vs. CraigLuana Pinheiro#9WKO/TKO3 (3:53)61%
2023-06-24UFC Fight Night: Emmett vs. TopuriaMaycee Barber#11LKO/TKO2 (3:42)59%
2023-03-04UFC 285: Jones vs. GaneViviane Araujo#8Wunanimous decision3 (5:00)65%
2022-05-14UFC Fight Night: Blachowicz vs. RakicKatlyn Cerminara#1Lsplit decision3 (5:00)56%
2021-10-30UFC 267: Blachowicz vs. TeixeiraVirna Jandiroba#12Wunanimous decision3 (5:00)58%
2021-01-23UFC 257: Poirier vs. McGregorMarina Rodriguez#8LKO/TKO2 (0:54)71%
2020-07-11UFC 251: Usman vs. MasvidalPaige VanZantunrankedWsubmission1 (2:21)74%

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 49 board fighters at Women's Strawweight at or below this value; high is a position in the division, not a verdict.

Output
Significant strikes landed per minute4.26(53rd percentile at Women's Strawweight)
Significant strike accuracy40%(22nd percentile at Women's Strawweight)
Knockdowns scored per 15 minutes0.09(57th percentile at Women's Strawweight)
Share of wins by finish43%(56th percentile at Women's Strawweight)
Defence and damage
Significant strikes absorbed per minute3.29(37th percentile at Women's Strawweight)
Significant strike defence60%(80th percentile at Women's Strawweight)
Knockdowns suffered per 15 minutes0.19(73rd percentile at Women's Strawweight)
Significant strikes absorbed, career530(76th percentile at Women's Strawweight)
KO/TKO losses3 (last 2025-07-26, 463 days ago)(96th percentile at Women's Strawweight)
Submission losses1(86th percentile at Women's Strawweight)
KO/TKO losses per bout over 10 years, each weighted down by the finisher's danger0.148(92nd percentile at Women's Strawweight)
Grappling
Takedowns landed per 15 minutes2.05(71st percentile at Women's Strawweight)
Takedown defence82%(87th percentile at Women's Strawweight)
Share of cage time in control27%(65th percentile at Women's Strawweight)
Share of significant strikes landed in the clinch or on the ground14%(31st percentile at Women's Strawweight)
Stylemixed (3.9 takedown attempts per 15 min; 27% control)
Career stage
Age33.2(58th percentile at Women's Strawweight)
Age at UFC debut25.8(35th percentile at Women's Strawweight)
Years since UFC debut7.3(76th percentile at Women's Strawweight)
UFC bouts13(82nd percentile at Women's Strawweight)
Cage time, minutes161(78th percentile at Women's Strawweight)
Bouts per year, last three years1.3(49th percentile at Women's Strawweight)
Days since last bout463(94th percentile at Women's Strawweight)

Board position since Oct 2023

C102030405020252026Oct 2023Oct 20262023-10-06: #15, Women's Flyweight2023-10-13: #15, Women's Flyweight2023-10-20: #14, Women's Flyweight2023-11-03: #14, Women's Flyweight2023-11-10: #14, Women's Flyweight2023-11-17: #14, Women's Flyweight2023-12-01: #9, Women's Strawweight2023-12-08: #9, Women's Strawweight2023-12-15: #9, Women's Strawweight2024-01-12: #9, Women's Strawweight2024-01-19: #8, Women's Strawweight2024-02-02: #6, Women's Flyweight2024-02-09: #7, Women's Flyweight2024-02-16: #7, Women's Flyweight2024-02-23: #7, Women's Flyweight2024-03-01: #7, Women's Flyweight2024-03-08: #7, Women's Flyweight2024-03-15: #7, Women's Flyweight2024-03-22: #7, Women's Flyweight2024-03-29: #13, Women's Flyweight2024-04-05: #13, Women's Flyweight2024-04-12: #13, Women's Flyweight2024-04-26: #13, Women's Flyweight2024-05-03: #12, Women's Flyweight2024-05-10: #13, Women's Flyweight2024-05-17: #12, Women's Flyweight2024-05-31: #13, Women's Flyweight2024-06-07: #13, Women's Flyweight2024-06-14: #13, Women's Flyweight2024-06-21: #13, Women's Flyweight2024-06-28: #13, Women's Flyweight2024-07-12: #13, Women's Flyweight2024-07-19: #13, Women's Flyweight2024-07-26: #12, Women's Flyweight2024-08-02: #12, Women's Flyweight2024-08-09: #12, Women's Flyweight2024-08-16: #12, Women's Flyweight2024-08-23: #11, Women's Flyweight2024-09-06: #11, Women's Flyweight2024-09-13: #12, Women's Flyweight2024-09-27: #12, Women's Flyweight2024-10-04: #12, Women's Flyweight2024-10-11: #12, Women's Flyweight2024-10-18: #12, Women's Flyweight2024-10-25: #12, Women's Flyweight2024-11-01: #12, Women's Flyweight2024-11-08: #12, Women's Flyweight2024-11-15: #12, Women's Flyweight2024-11-22: #12, Women's Flyweight2024-12-06: #12, Women's Flyweight2024-12-13: #12, Women's Flyweight2025-01-10: #12, Women's Flyweight2025-01-17: #16, Women's Flyweight2025-01-31: #16, Women's Flyweight2025-02-07: #16, Women's Flyweight2025-02-14: #16, Women's Flyweight2025-02-21: #15, Women's Flyweight2025-02-28: #15, Women's Flyweight2025-03-07: #15, Women's Flyweight2025-03-14: #15, Women's Flyweight2025-03-21: #15, Women's Flyweight2025-03-28: #15, Women's Flyweight2025-04-04: #15, Women's Flyweight2025-04-11: #15, Women's Flyweight2025-04-25: #15, Women's Flyweight2025-05-02: #15, Women's Flyweight2025-05-09: #14, Women's Flyweight2025-05-16: #15, Women's Flyweight2025-05-30: #15, Women's Flyweight2025-06-06: #15, Women's Flyweight2025-06-13: #16, Women's Flyweight2025-06-20: #16, Women's Flyweight2025-06-27: #16, Women's Flyweight2025-07-11: #16, Women's Flyweight2025-07-18: #16, Women's Flyweight2025-07-25: #17, Women's Flyweight2025-08-01: #39, Women's Strawweight2025-08-08: #39, Women's Strawweight2025-08-15: #40, Women's Strawweight2025-08-22: #41, Women's Strawweight2025-09-05: #41, Women's Strawweight2025-09-12: #41, Women's Strawweight2025-09-26: #41, Women's Strawweight2025-10-03: #41, Women's Strawweight2025-10-10: #40, Women's Strawweight2025-10-17: #40, Women's Strawweight2025-10-24: #41, Women's Strawweight2025-10-31: #42, Women's Strawweight2025-11-07: #42, Women's Strawweight2025-11-14: #42, Women's Strawweight2025-11-21: #42, Women's Strawweight2025-12-05: #42, Women's Strawweight2025-12-12: #42, Women's Strawweight2026-01-23: #42, Women's Strawweight2026-01-30: #42, Women's Strawweight2026-02-06: #42, Women's Strawweight2026-02-20: #42, Women's Strawweight2026-02-27: #42, Women's Strawweight2026-03-06: #42, Women's Strawweight2026-03-13: #41, Women's Strawweight2026-03-20: #41, Women's Strawweight2026-03-27: #42, Women's Strawweight2026-04-03: #40, Women's Strawweight2026-04-10: #39, Women's Strawweight2026-04-17: #40, Women's Strawweight2026-04-24: #40, Women's Strawweight2026-05-01: #40, Women's Strawweight2026-05-08: #40, Women's Strawweight2026-05-15: #40, Women's Strawweight2026-05-29: #39, Women's Strawweight2026-06-05: #40, Women's Strawweight2026-06-13: #39, Women's Strawweight2026-06-19: #39, Women's Strawweight2026-06-26: #37, Women's Strawweight2026-07-10: #36, Women's Strawweight2026-07-17: #36, Women's Strawweight2026-07-24: #38, Women's Strawweight2026-07-31: #38, Women's Strawweight2026-08-07: #39, Women's Strawweight2026-08-14: #40, Women's Strawweight2026-08-21: #41, Women's Strawweight2026-08-28: #41, Women's Strawweight2026-09-04: #41, Women's Strawweight2026-09-11: #43, Women's Strawweight2026-09-18: #42, Women's Strawweight2026-09-25: #42, Women's Strawweight2026-09-26: #44, Women's Strawweight2026-10-03: #44, Women's Strawweight2026-10-10: #44, Women's Strawweight2026-10-17: #44, Women's Strawweight2026-10-24: #46, Women's Strawweight2026-10-31: #43, Women's Strawweight#43

Position on the registered v1.0 board at each weekly snapshot (C = title holder or reserved, drawn at the top; lower is better). Listed at Women's Flyweight, then Women's Strawweight, then Women's Flyweight, then Women's Strawweight over this period.

Predictive rating by bout

1,5501,6001,6501,7001,75020212022202320242025Jun 2019Oct 20262019-06-29: 1,599 (W vs Emily Whitmire)2019-10-12: 1,671 (W vs Mackenzie Dern)2020-03-14: 1,713 (W vs Randa Markos)2020-07-11: 1,734 (W vs Paige VanZant)2021-01-23: 1,656 (L vs Marina Rodriguez)2021-10-30: 1,682 (W vs Virna Jandiroba)2022-05-14: 1,672 (L vs Katlyn Cerminara)2023-03-04: 1,704 (W vs Viviane Araujo)2023-06-24: 1,638 (L vs Maycee Barber)2023-11-18: 1,663 (W vs Luana Pinheiro)2024-03-23: 1,666 (L vs Rose Namajunas)2025-01-11: 1,638 (L vs Mackenzie Dern)2025-07-26: 1,610 (L vs Tabatha Ricci)1,610

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 run about 44 points behind the rating: her own recent results, not age, put her there.

ComponentPointsMeaning
Age component-0what fighters aged 33.2 typically run relative to their rating (population curve, all UFC bouts since 2011)
Own recent results-44her recency-weighted mean and trend over 13 bouts, shrunk toward zero; trend -9 points a year
Combined-44the rating's likely distance from her current performance level, in rating points
Readingbehind 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+1.0252627282930313233342019-06-29 (age 25.8): W vs Emily Whitmire, residual +0.542019-10-12 (age 26.1): W vs Mackenzie Dern, residual +0.472020-03-14 (age 26.5): W vs Randa Markos, residual +0.312020-07-11 (age 26.9): W vs Paige VanZant, residual +0.472021-01-23 (age 27.4): L vs Marina Rodriguez, residual -0.592021-10-30 (age 28.2): W vs Virna Jandiroba, residual +0.162022-05-14 (age 28.7): L vs Katlyn Cerminara, residual +0.022023-03-04 (age 29.5): W vs Viviane Araujo, residual +0.402023-06-24 (age 29.8): L vs Maycee Barber, residual -0.572023-11-18 (age 30.2): W vs Luana Pinheiro, residual +0.452024-03-23 (age 30.6): L vs Rose Namajunas, residual -0.172025-01-11 (age 31.4): L vs Mackenzie Dern, residual -0.502025-07-26 (age 31.9): L vs Tabatha Ricci, residual -0.55-0.06

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.