Yaroslav Amosov

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 13-22: the 10th to 90th percentile of his position across weight vectors drawn near the 70/30 weights. Rating 1,609, deviation 224: measured from 2 UFC bouts; a one-bout newcomer sits near 290. Provisional: 2 UFC bouts; the rating rests on little evidence.

Age 33 (born 1993-09-09) · Height unknown · Reach unknown · Stance unknown · 176 days since last bout (2026-05-09) · Last five 2-0 · Streak W2

Why he is ranked here

Rating 1,609 is the division's 28th highest of 76 board fighters; the ledger stands at +0.5 (+0.5 from quality wins; losses count for three years); 2 quality wins in 15 years, 0 over top-10 opponents; no form penalty (2-0 last five). Score +0.23 = +0.16 (rating term, 70% weight) +0.07 (ledger term, 30% weight) -0.00 (form penalty); score order put him at #18; 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 him #14.

Term	Value	Detail
Score	+0.23	70% rating term + 30% ledger term - form penalty
Rating term	+0.16	resume rating 1,609, scaled against the division's interdecile range
Ledger term	+0.07	quality ledger +0.5: +0.5 QW +0.0 proof -0.0 blowout -0.0 weak
Form penalty	0.00	last five 2-0
Quality wins, 15 years	2	0 over top-10 opponents, 0 over top-15
Placement	score order #18; head-to-head -> #14	v1.0 (registered)
Shadow board v1.1	#14	score +0.23; score order #14

All 2 UFC bouts

Date	Event	Opponent	Opp. official rank	Result	Method	Round	Model p
2026-05-09	UFC 328: Chimaev vs. Strickland	Joel Alvarez	unranked	W	submission	2 (1:13)	31%
2025-12-13	UFC Fight Night: Royval vs. Kape	Neil Magny	unranked	W	submission	1 (3:14)	30%

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

Output
Significant strikes landed per minute	2.65	(18th percentile at Welterweight)
Significant strike accuracy	53%	(72nd percentile at Welterweight)
Knockdowns scored per 15 minutes	0.00	(32nd percentile at Welterweight)
Share of wins by finish	100%	(100th percentile at Welterweight)
Defence and damage
Significant strikes absorbed per minute	1.38	(4th percentile at Welterweight)
Significant strike defence	61%	(87th percentile at Welterweight)
Knockdowns suffered per 15 minutes	0.00	(42nd percentile at Welterweight)
Significant strikes absorbed, career	13	(7th percentile at Welterweight)
KO/TKO losses	0	(37th percentile at Welterweight)
Submission losses	0	(66th percentile at Welterweight)
KO/TKO losses per bout over 10 years, each weighted down by the finisher's danger	0.000	(39th percentile at Welterweight)
Grappling
Takedowns landed per 15 minutes	11.11	(100th percentile at Welterweight)
Takedown defence	n/a
Share of cage time in control	61%	(97th percentile at Welterweight)
Share of significant strikes landed in the clinch or on the ground	32%	(73rd percentile at Welterweight)
Style	wrestler (20.6 takedown attempts per 15 min; 61% control)
Career stage
Age	33.1	(54th percentile at Welterweight)
Age at UFC debut	32.3	(86th percentile at Welterweight)
Years since UFC debut	0.9	(21st percentile at Welterweight)
UFC bouts	2	(28th percentile at Welterweight)
Cage time, minutes	9	(9th percentile at Welterweight)
Bouts per year, last three years	2.0	(82nd percentile at Welterweight)
Days since last bout	176	(68th percentile at Welterweight)

Board position since Oct 2023

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 93 of 132 snapshots (gaps in the line).

Predictive rating by bout

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

No trajectory index: it needs three decided UFC bouts and a bout within the last three years (config/decline.yaml).

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.