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Jayson Vayson vs Ryuya Yamanaka — record, stats and common opponents compared

Jayson Vayson

🇯🇵JAPAN

Ryuya Yamanaka

Jayson Vayson (15-2-1) and Ryuya Yamanaka (20-4) are compared on record, finishing method, activity, and common opponents on Kill The Body. The two have met once. They share no common opponents in Kill The Body's bout data.

Vayson

15

Wins8 KO · 53%

2

Losses

1

Draw19 tracked bouts

Yamanaka

20

Wins7 KO · 35%

4

Losses

0

Draws24 tracked bouts

Head to Head

Vayson leads 1–0

Jayson Vayson and Ryuya Yamanaka have met 1 time; Vayson leads 1–0.

Jayson Vayson and Ryuya Yamanaka have met 1 time; Vayson leads 1–0.
Met2023Dec 17Series
Jayson VaysonFighter AWWon1–0W–L
Ryuya YamanakaFighter BLLost0–1W–L
ResultTKOR21Meeting

The Numbers

Vayson 6 · Yamanaka 0 of 6 measurable rows
VaysonYamanaka
Record
15-2-1 (edge)20-4
Win %0–100%
86.1% (edge)
83.3%
Wins by knockoutmax 8
8 (edge)
7
KO rate0–100%
53.33% (edge)
35%
Stoppage rate (tracked wins)†0–100%
53% (edge)
35%
Times stopped†max 2
1 (edge)
2
Title reignslevelmax 0
0
0
Bouts per year‡levelmax 2
2
2
Bouts trackedcoveragemax 24
19
24

† Counted from bouts Kill The Body has ingested, not a career total. · ‡ Across each fighter's tracked career span. · Bars are scaled per row — percentages on 0–100, counts against the larger of the two. Every figure is also printed as text.

Tale of the Tape

HeightLevel
Jayson Vayson: 5′4″
Ryuya Yamanaka: 5′4″
Reach+1″
Jayson Vayson: 66″
Ryuya Yamanaka: 67″ (edge)
Age3 yrs apart
Jayson Vayson: 28
Ryuya Yamanaka: 31
Stance
Jayson Vayson: Orthodox
Ryuya Yamanaka: Orthodox

Jayson Vayson left, Ryuya Yamanaka right, as everywhere on this page. Age is stated, not scored — neither age nor stance carries an edge.

How They Win

Tracked bouts only
Jayson Vayson15 wins · from 19 tracked bouts

Jayson Vayson: 15 tracked wins — 8 by KO/TKO (53%) and 7 on the cards (47%). Counted from 19 bouts Kill The Body has ingested.

8 by KO/TKO 53%7 on the cards 47%

Ryuya Yamanaka20 wins · from 24 tracked bouts

Ryuya Yamanaka: 20 tracked wins — 7 by KO/TKO (35%) and 13 on the cards (65%). Counted from 24 bouts Kill The Body has ingested.

7 by KO/TKO 35%13 on the cards 65%

One square per tracked win. Counted from the bouts Kill The Body has ingested for each fighter — Jayson Vayson 19, Ryuya Yamanaka 24 — not from a career-complete method table.

Common Opponents

No opponents in common across the bouts Kill The Body has tracked for these two.

Current Form

Oldest left · newest right

Jayson Vayson has won once since losing by stoppage to Oscar Collazo. Vayson last boxed on May 16, 2026 — 154 days ago.WWWLW

Inoue Apr 2024Marbaniang Sep 2024Aiamong Mar 2025Collazo Sep 2025Paradero May 20262 tracked bouts per year

Ryuya Yamanaka last boxed on Jun 23, 2024 — 846 days ago. Yamanaka had won once since losing by stoppage to Jayson Vayson.WWWLW

Sudo Mar 2022Taconing Aug 2022Ando May 2023Vayson Dec 2023Taosuwan Jun 20242 tracked bouts per year

Common Questions

With the rows behind them
Have Jayson Vayson and Ryuya Yamanaka ever fought each other?
Yes. Jayson Vayson and Ryuya Yamanaka met once on December 17, 2023, and Jayson Vayson won by TKO in round 2.
The meeting

WDec 17, 2023 · Vayson · TKO R2

Head to Head ↓
Who has the better record, Vayson or Yamanaka?
Jayson Vayson is 15-2-1 and Ryuya Yamanaka is 20-4. Jayson Vayson has the higher win percentage.
Records · win %

Vayson15–2–186.1%

Yamanaka20–483.3%

The Numbers ↓
Who has more knockouts, Vayson or Yamanaka?
Jayson Vayson has 8 knockout wins and Ryuya Yamanaka has 7. Jayson Vayson has more.
Knockout wins · KO rate

Vayson853.3%

Yamanaka735%

The Numbers ↓
Do Vayson and Yamanaka have any common opponents?
Kill The Body's bout data shows no opponents that both Jayson Vayson and Ryuya Yamanaka have faced.
How much fight data does Kill The Body have on Vayson and Yamanaka?
This comparison is drawn from 19 bouts tracked for Jayson Vayson and 24 bouts tracked for Ryuya Yamanaka. Method and activity splits reflect those bouts only.
Bouts tracked · no edge

Vayson19bouts

Yamanaka24bouts

How They Win ↓

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