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Kill The Body

and the head will die

John Riel Casimero vs Ken'ya Yamashita — record, stats and common opponents compared

🇵🇭PHILIPPINES

John Riel Casimero

🇯🇵JAPAN

Ken'ya Yamashita

John Riel Casimero (36-5-1) and Ken'ya Yamashita (0-1 across 1 tracked bout) 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.

Casimero

36

Wins25 KO · 69%

5

Losses

1

Draw42 tracked bouts

Yamashita

Tracked record

0–1

counted from 1 bout Kill The Body has ingested

Heads up: at least one of these records is a tracked record — the wins and losses Kill The Body has ingested so far, not an independently verified career total. Treat the comparison as a read on the bouts we hold, not a settled ledger.

Head to Head

Casimero leads 1–0

John Riel Casimero and Ken'ya Yamashita have met 1 time; Casimero leads 1–0.

John Riel Casimero and Ken'ya Yamashita have met 1 time; Casimero leads 1–0.
Met2019Feb 16Series
John Riel CasimeroFighter AWWon1–0W–L
Ken'ya YamashitaFighter BLLost0–1W–L
ResultTKOR61Meeting

The Numbers

Casimero 4 · Yamashita 0 of 4 measurable rows
CasimeroYamashita
Record†
36-5-1 (edge)0-1
Win %0–100%
86.9% (edge)
0%
Wins by knockoutmax 25
25 (edge)
0
KO ratenot comparable
69.44%—
Stoppage rate (tracked wins)‡not comparable
69%—
Times stopped‡levelmax 1
1
1
Title reignsmax 6
6 (edge)
0
Bouts per year§not comparable
2.2—
Bouts trackedcoveragemax 42
42
1

† One or both records are tracked, not career-verified. · ‡ 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

Heightnot held
John Riel Casimero: 5′4″
Ken'ya Yamashita: No height on file
Reachnot held
John Riel Casimero: 70″
Ken'ya Yamashita: No reach on file
Age6 yrs apart
John Riel Casimero: 36
Ken'ya Yamashita: 30
Stance
John Riel Casimero: Orthodox
Ken'ya Yamashita: Not recorded

John Riel Casimero left, Ken'ya Yamashita right, as everywhere on this page. Age is stated, not scored — neither age nor stance carries an edge.

How They Win

Tracked bouts only
John Riel Casimero36 wins · from 42 tracked bouts

John Riel Casimero: 36 tracked wins — 25 by KO/TKO (69%), 10 on the cards (28%) and 1 by another method or unrecorded (3%). Counted from 42 bouts Kill The Body has ingested.

25 by KO/TKO 69%10 on the cards 28%1 by another method or unrecorded 3%

Ken'ya Yamashita0 wins · from 1 tracked bout

Ken'ya Yamashita: no tracked wins in the 1 bout Kill The Body has ingested.

No tracked wins for Yamashita yet.

One square per tracked win. Counted from the bouts Kill The Body has ingested for each fighter — John Riel Casimero 42, Ken'ya Yamashita 1 — 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

John Riel Casimero has won two straight since losing a decision to Kyōnosuke Kameda. Casimero last boxed on Jun 6, 2026 — 144 days ago.DWLWW

Oguni Oct 2023Sanchez Oct 2024Kameda Oct 2025Mizokoshi Dec 2025Nery Jun 20262.2 tracked bouts per year

Ken'ya Yamashita last boxed on Feb 16, 2019 — 2,811 days ago. Yamashita had lost the most recent, to John Riel Casimero.L

Casimero Feb 2019

Common Questions

With the rows behind them
Have John Riel Casimero and Ken'ya Yamashita ever fought each other?
Yes. John Riel Casimero and Ken'ya Yamashita met once on February 16, 2019, and John Riel Casimero won by TKO in round 6.
The meeting

WFeb 16, 2019 · Casimero · TKO R6

Head to Head ↓
Who has the better record, Casimero or Yamashita?
John Riel Casimero is 36-5-1 and Ken'ya Yamashita is 0-1 across the 1 bout Kill The Body has tracked. John Riel Casimero has the higher win percentage. Records shown as tracked have not yet been independently verified as complete career totals.
Records · win %

Casimero36–5–186.9%

Yamashita0–10%

The Numbers ↓
Who has more knockouts, Casimero or Yamashita?
John Riel Casimero has 25 knockout wins and Ken'ya Yamashita has 0. John Riel Casimero has more.
Knockout wins · KO rate

Casimero2569.4%

Yamashita0

The Numbers ↓
Do Casimero and Yamashita have any common opponents?
Kill The Body's bout data shows no opponents that both John Riel Casimero and Ken'ya Yamashita have faced.
How much fight data does Kill The Body have on Casimero and Yamashita?
This comparison is drawn from 42 bouts tracked for John Riel Casimero and 1 bout tracked for Ken'ya Yamashita. Method and activity splits reflect those bouts only.
Bouts tracked · no edge

Casimero42bouts

Yamashita1bout

How They Win ↓

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