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Jean Matsumoto

Bantamweight · REAL v1.0 (registered) #38; v1.1 (shadow) #38

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 34-41: the 10th to 90th percentile of his position across weight vectors drawn near the 70/30 weights. Rating 1,564, deviation 154: measured from 6 UFC bouts; a one-bout newcomer sits near 290.

Age 27 (born 1999-09-09) · Height 5 ft 6 in (168 cm) · Reach 68 in (173 cm) · Stance Orthodox · 127 days since last bout (2026-06-27) · Last five 3-2 · Streak W1

Why he is ranked here

Rating 1,564 is the division's 36th highest of 86 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 +0.02 = +0.09 (rating term, 70% weight) -0.06 (ledger term, 30% weight) -0.00 (form penalty); score order put him at #38.

TermValueDetail
Score+0.0270% rating term + 30% ledger term - form penalty
Rating term+0.09resume rating 1,564, scaled against the division's interdecile range
Ledger term-0.06quality 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 #38v1.0 (registered)
Shadow board v1.1#38score -0.04; score order #38

Rules, weights and worked examples: methodology.

All 6 UFC bouts

DateEventOpponentOpp. official rankResultMethodRoundModel p
2026-06-27UFC Fight Night: Fiziev vs. TorresBekzat AlmakhanunrankedWunanimous decision3 (5:00)57%
2026-02-07UFC Fight Night: Bautista vs. OliveiraFarid BasharatunrankedLsplit decision3 (5:00)32%
2025-08-09UFC Fight Night: Dolidze vs. HernandezMiles JohnsunrankedWsplit decision3 (5:00)52%
2025-02-22UFC Fight Night: Cejudo vs. SongRob Font#9Lsplit decision3 (5:00)21%
2024-10-19UFC Fight Night: Hernandez vs. PereiraBrad KatonaunrankedWunanimous decision3 (5:00)50%
2024-04-06UFC Fight Night: Allen vs. Curtis 2Dan ArguetaunrankedWsubmission2 (4:59)43%

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 him (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 86 board fighters at Bantamweight at or below this value; high is a position in the division, not a verdict.

Output
Significant strikes landed per minute5.12(83rd percentile at Bantamweight)
Significant strike accuracy40%(14th percentile at Bantamweight)
Knockdowns scored per 15 minutes0.00(37th percentile at Bantamweight)
Share of wins by finish25%(23rd percentile at Bantamweight)
Defence and damage
Significant strikes absorbed per minute5.06(83rd percentile at Bantamweight)
Significant strike defence49%(26th percentile at Bantamweight)
Knockdowns suffered per 15 minutes0.18(59th percentile at Bantamweight)
Significant strikes absorbed, career430(70th percentile at Bantamweight)
KO/TKO losses0(63rd percentile at Bantamweight)
Submission losses0(66th percentile at Bantamweight)
KO/TKO losses per bout over 10 years, each weighted down by the finisher's danger0.000(64th percentile at Bantamweight)
Grappling
Takedowns landed per 15 minutes3.35(85th percentile at Bantamweight)
Takedown defence55%(28th percentile at Bantamweight)
Share of cage time in control20%(57th percentile at Bantamweight)
Share of significant strikes landed in the clinch or on the ground11%(33rd percentile at Bantamweight)
Stylemixed (7.9 takedown attempts per 15 min; 20% control)
Career stage
Age27.1(11th percentile at Bantamweight)
Age at UFC debut24.6(17th percentile at Bantamweight)
Years since UFC debut2.6(41st percentile at Bantamweight)
UFC bouts6(60th percentile at Bantamweight)
Cage time, minutes85(62nd percentile at Bantamweight)
Bouts per year, last three years2.3(92nd percentile at Bantamweight)
Days since last bout127(53rd percentile at Bantamweight)

Board position since Oct 2023

C1020304020252026Oct 2023Oct 20262024-04-12: #25, Bantamweight2024-04-26: #24, Bantamweight2024-05-03: #24, Bantamweight2024-05-10: #24, Bantamweight2024-05-17: #25, Bantamweight2024-05-31: #27, Bantamweight2024-06-07: #26, Bantamweight2024-06-14: #28, Bantamweight2024-06-21: #29, Bantamweight2024-06-28: #29, Bantamweight2024-07-12: #29, Bantamweight2024-07-19: #29, Bantamweight2024-07-26: #29, Bantamweight2024-08-02: #29, Bantamweight2024-08-09: #29, Bantamweight2024-08-16: #29, Bantamweight2024-08-23: #29, Bantamweight2024-09-06: #29, Bantamweight2024-09-13: #29, Bantamweight2024-09-27: #29, Bantamweight2024-10-04: #29, Bantamweight2024-10-11: #29, Bantamweight2024-10-18: #29, Bantamweight2024-10-25: #30, Bantamweight2024-11-01: #30, Bantamweight2024-11-08: #30, Bantamweight2024-11-15: #31, Bantamweight2024-11-22: #31, Bantamweight2024-12-06: #32, Bantamweight2024-12-13: #31, Bantamweight2025-01-10: #31, Bantamweight2025-01-17: #31, Bantamweight2025-01-31: #30, Bantamweight2025-02-07: #30, Bantamweight2025-02-14: #30, Bantamweight2025-02-21: #30, Bantamweight2025-02-28: #32, Bantamweight2025-03-07: #32, Bantamweight2025-03-14: #32, Bantamweight2025-03-21: #33, Bantamweight2025-03-28: #33, Bantamweight2025-04-04: #33, Bantamweight2025-04-11: #33, Bantamweight2025-04-25: #33, Bantamweight2025-05-02: #34, Bantamweight2025-05-09: #34, Bantamweight2025-05-16: #34, Bantamweight2025-05-30: #34, Bantamweight2025-06-06: #34, Bantamweight2025-06-13: #34, Bantamweight2025-06-20: #35, Bantamweight2025-06-27: #35, Bantamweight2025-07-11: #35, Bantamweight2025-07-18: #35, Bantamweight2025-07-25: #35, Bantamweight2025-08-01: #33, Bantamweight2025-08-08: #33, Bantamweight2025-08-15: #34, Bantamweight2025-08-22: #34, Bantamweight2025-09-05: #34, Bantamweight2025-09-12: #34, Bantamweight2025-09-26: #35, Bantamweight2025-10-03: #35, Bantamweight2025-10-10: #35, Bantamweight2025-10-17: #36, Bantamweight2025-10-24: #35, Bantamweight2025-10-31: #35, Bantamweight2025-11-07: #34, Bantamweight2025-11-14: #34, Bantamweight2025-11-21: #33, Bantamweight2025-12-05: #34, Bantamweight2025-12-12: #32, Bantamweight2026-01-23: #32, Bantamweight2026-01-30: #32, Bantamweight2026-02-06: #32, Bantamweight2026-02-20: #36, Bantamweight2026-02-27: #36, Bantamweight2026-03-06: #36, Bantamweight2026-03-13: #36, Bantamweight2026-03-20: #36, Bantamweight2026-03-27: #35, Bantamweight2026-04-03: #35, Bantamweight2026-04-10: #36, Bantamweight2026-04-17: #36, Bantamweight2026-04-24: #36, Bantamweight2026-05-01: #36, Bantamweight2026-05-08: #36, Bantamweight2026-05-15: #35, Bantamweight2026-05-29: #36, Bantamweight2026-06-05: #36, Bantamweight2026-06-13: #36, Bantamweight2026-06-19: #36, Bantamweight2026-06-26: #36, Bantamweight2026-07-10: #36, Bantamweight2026-07-17: #35, Bantamweight2026-07-24: #35, Bantamweight2026-07-31: #36, Bantamweight2026-08-07: #37, Bantamweight2026-08-14: #37, Bantamweight2026-08-21: #37, Bantamweight2026-08-28: #37, Bantamweight2026-09-04: #39, Bantamweight2026-09-11: #39, Bantamweight2026-09-18: #39, Bantamweight2026-09-25: #39, Bantamweight2026-09-26: #40, Bantamweight2026-10-03: #39, Bantamweight2026-10-10: #39, Bantamweight2026-10-17: #40, Bantamweight2026-10-24: #40, Bantamweight2026-10-31: #38, Bantamweight#38

Position on the registered v1.0 board at each weekly snapshot (C = title holder or reserved, drawn at the top; lower is better). Absent from 21 of 132 snapshots (gaps in the line).

Predictive rating by bout

1,5001,5501,60020252026Apr 2024Oct 20262024-04-06: 1,514 (W vs Dan Argueta)2024-10-19: 1,516 (W vs Brad Katona)2025-02-22: 1,552 (L vs Rob Font)2025-08-09: 1,561 (W vs Miles Johns)2026-02-07: 1,588 (L vs Farid Basharat)2026-06-27: 1,595 (W vs Bekzat Almakhan)1,595

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 42 points ahead of the rating: fighters this age typically run 39 points ahead of their rating, and his own recent results track that.

ComponentPointsMeaning
Age component+39what fighters aged 27.1 typically run relative to their rating (population curve, all UFC bouts since 2011)
Own recent results+3his recency-weighted mean and trend over 6 bouts, shrunk toward zero; trend -2 points a year
Combined+42the rating's likely distance from his current performance level, in rating points
Readingahead of 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+1.024252627282024-04-06 (age 24.6): W vs Dan Argueta, residual +0.562024-10-19 (age 25.1): W vs Brad Katona, residual +0.002025-02-22 (age 25.5): L vs Rob Font, residual +0.202025-08-09 (age 25.9): W vs Miles Johns, residual +0.012026-02-07 (age 26.4): L vs Farid Basharat, residual +0.042026-06-27 (age 26.8): W vs Bekzat Almakhan, residual +0.02+0.06

Each dot is one decided UFC bout at his 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 him, not a forecast for him; 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.