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Ozzy Diaz

Middleweight · REAL v1.0 (registered) #68; v1.1 (shadow) #70

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 67-68: the 10th to 90th percentile of his position across weight vectors drawn near the 70/30 weights. Rating 1,412, deviation 196: measured from 4 UFC bouts; a one-bout newcomer sits near 290.

Age 35 (born 1990-11-22) · Height 6 ft 4 in (193 cm) · Reach 79 in (201 cm) · Stance Orthodox · 43 days since last bout (2026-09-19) · Last five 1-3 · Streak L2

Why he is ranked here

Rating 1,412 is the division's 75th highest of 79 board fighters; the ledger stands at -3.0 (less 2.0 for blowout losses, less 1.0 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 (1-3 last five). Score -0.48 = -0.36 (rating term, 70% weight) -0.12 (ledger term, 30% weight) -0.00 (form penalty); score order put him at #68.

TermValueDetail
Score-0.4870% rating term + 30% ledger term - form penalty
Rating term-0.36resume rating 1,412, scaled against the division's interdecile range
Ledger term-0.12quality ledger -3.0: +0.0 QW +0.0 proof -2.0 blowout -1.0 weak
Form penalty0.00last five 1-3
Quality wins, 15 years00 over top-10 opponents, 0 over top-15
Placementscore order #68v1.0 (registered)
Shadow board v1.1#70score -0.79; score order #70

Rules, weights and worked examples: methodology.

All 4 UFC bouts

DateEventOpponentOpp. official rankResultMethodRoundModel p
2026-09-19UFC 331: Van vs. Pantoja 2Ryan GandraunrankedLKO/TKO1 (2:04)25%
2026-05-09UFC 328: Chimaev vs. StricklandAteba GautierunrankedLKO/TKO2 (1:10)28%
2025-03-08UFC 313: Pereira vs. AnkalaevDjorden SantosunrankedWunanimous decision3 (5:00)41%
2024-11-23UFC Fight Night: Yan vs. FigueiredoZhang MingyangunrankedLKO/TKO1 (2:25)38%

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 79 board fighters at Middleweight at or below this value; high is a position in the division, not a verdict.

Output
Significant strikes landed per minute5.96(90th percentile at Middleweight)
Significant strike accuracy52%(59th percentile at Middleweight)
Knockdowns scored per 15 minutes0.00(30th percentile at Middleweight)
Share of wins by finish0%(12th percentile at Middleweight)
Defence and damage
Significant strikes absorbed per minute7.29(97th percentile at Middleweight)
Significant strike defence62%(94th percentile at Middleweight)
Knockdowns suffered per 15 minutes1.75(92nd percentile at Middleweight)
Significant strikes absorbed, career187(46th percentile at Middleweight)
KO/TKO losses3 (last 2026-09-19, 43 days ago)(94th percentile at Middleweight)
Submission losses0(59th percentile at Middleweight)
KO/TKO losses per bout over 10 years, each weighted down by the finisher's danger0.319(91st percentile at Middleweight)
Grappling
Takedowns landed per 15 minutes0.00(16th percentile at Middleweight)
Takedown defence67%(50th percentile at Middleweight)
Share of cage time in control4%(13th percentile at Middleweight)
Share of significant strikes landed in the clinch or on the ground3%(6th percentile at Middleweight)
Stylestriker (1.8 takedown attempts per 15 min; 4% control)
Career stage
Age35.9(81st percentile at Middleweight)
Age at UFC debut34.0(95th percentile at Middleweight)
Years since UFC debut1.9(37th percentile at Middleweight)
UFC bouts4(37th percentile at Middleweight)
Cage time, minutes26(24th percentile at Middleweight)
Bouts per year, last three years2.1(59th percentile at Middleweight)
Days since last bout43(33rd percentile at Middleweight)

Board position since Oct 2023

C2040608020252026Oct 2023Oct 20262024-12-06: #30, Light Heavyweight2024-12-13: #30, Light Heavyweight2025-01-10: #32, Light Heavyweight2025-01-17: #33, Light Heavyweight2025-01-31: #32, Light Heavyweight2025-02-07: #32, Light Heavyweight2025-02-14: #33, Light Heavyweight2025-02-21: #33, Light Heavyweight2025-02-28: #35, Light Heavyweight2025-03-07: #35, Light Heavyweight2025-03-14: #42, Middleweight2025-03-21: #43, Middleweight2025-03-28: #43, Middleweight2025-04-04: #44, Middleweight2025-04-11: #44, Middleweight2025-04-25: #43, Middleweight2025-05-02: #44, Middleweight2025-05-09: #44, Middleweight2025-05-16: #44, Middleweight2025-05-30: #44, Middleweight2025-06-06: #44, Middleweight2025-06-13: #44, Middleweight2025-06-20: #44, Middleweight2025-06-27: #44, Middleweight2025-07-11: #44, Middleweight2025-07-18: #44, Middleweight2025-07-25: #44, Middleweight2025-08-01: #42, Middleweight2025-08-08: #43, Middleweight2025-08-15: #43, Middleweight2025-08-22: #44, Middleweight2025-09-05: #43, Middleweight2025-09-12: #44, Middleweight2025-09-26: #43, Middleweight2025-10-03: #44, Middleweight2025-10-10: #43, Middleweight2025-10-17: #43, Middleweight2025-10-24: #42, Middleweight2025-10-31: #42, Middleweight2025-11-07: #43, Middleweight2025-11-14: #44, Middleweight2025-11-21: #44, Middleweight2025-12-05: #42, Middleweight2025-12-12: #42, Middleweight2026-01-23: #43, Middleweight2026-01-30: #43, Middleweight2026-02-06: #43, Middleweight2026-02-20: #44, Middleweight2026-02-27: #50, Middleweight2026-03-06: #52, Middleweight2026-03-13: #52, Middleweight2026-03-20: #51, Middleweight2026-03-27: #51, Middleweight2026-04-03: #52, Middleweight2026-04-10: #53, Middleweight2026-04-17: #53, Middleweight2026-04-24: #54, Middleweight2026-05-01: #56, Middleweight2026-05-08: #57, Middleweight2026-05-15: #62, Middleweight2026-05-29: #61, Middleweight2026-06-05: #62, Middleweight2026-06-13: #62, Middleweight2026-06-19: #62, Middleweight2026-06-26: #62, Middleweight2026-07-10: #60, Middleweight2026-07-17: #59, Middleweight2026-07-24: #59, Middleweight2026-07-31: #59, Middleweight2026-08-07: #59, Middleweight2026-08-14: #59, Middleweight2026-08-21: #58, Middleweight2026-08-28: #58, Middleweight2026-09-04: #58, Middleweight2026-09-11: #61, Middleweight2026-09-18: #59, Middleweight2026-09-25: #68, Middleweight2026-09-26: #68, Middleweight2026-10-03: #66, Middleweight2026-10-10: #66, Middleweight2026-10-17: #68, Middleweight2026-10-24: #69, Middleweight2026-10-31: #68, Middleweight#68

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 Light Heavyweight, then Middleweight over this period. Absent from 49 of 132 snapshots (gaps in the line).

Predictive rating by bout

1,3501,4001,4501,5002026Nov 2024Oct 20262024-11-23: 1,436 (L vs Zhang Mingyang)2025-03-08: 1,466 (W vs Djorden Santos)2026-05-09: 1,440 (L vs Ateba Gautier)2026-09-19: 1,394 (L vs Ryan Gandra)1,394

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 63 points behind the rating: fighters this age typically run 52 points behind their rating, and his own recent results put him a further 11 points behind.

ComponentPointsMeaning
Age component-52what fighters aged 35.9 typically run relative to their rating (population curve, all UFC bouts since 2011)
Own recent results-11his recency-weighted mean and trend over 4 bouts, shrunk toward zero; trend -0 points a year
Combined-63the rating's likely distance from his 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+1.033343536372024-11-23 (age 34.0): L vs Zhang Mingyang, residual -0.412025-03-08 (age 34.3): W vs Djorden Santos, residual +0.142026-05-09 (age 35.5): L vs Ateba Gautier, residual -0.292026-09-19 (age 35.8): L vs Ryan Gandra, residual -0.31-0.09

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.