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Kill The Body

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Michiyosi Koizumi vs Yoshio Shirai — record, stats and common opponents compared

Michiyosi Koizumi

🇯🇵FLYWEIGHT

Yoshio Shirai

Michiyosi Koizumi (0-1 across 1 tracked bout) and Yoshio Shirai (46-8-4) 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.

Koizumi

Tracked record

0–1

counted from 1 bout Kill The Body has ingested

Shirai

46

Wins18 KO · 39%

8

Losses

4

Draws58 tracked bouts

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

Shirai leads 1–0

Michiyosi Koizumi and Yoshio Shirai have met 1 time; Shirai leads 1–0.

Michiyosi Koizumi and Yoshio Shirai have met 1 time; Shirai leads 1–0.
Met1947Dec 25Series
Michiyosi KoizumiFighter ALLost0–1W–L
Yoshio ShiraiFighter BWWon1–0W–L
ResultKOR21Meeting

The Numbers

Koizumi 1 · Shirai 4 of 5 measurable rows
KoizumiShirai
Record†
0-146-8-4 (edge)
Win %0–100%
0%
82.8% (edge)
Wins by knockoutmax 18
0
18 (edge)
KO ratenot comparable
—39.13%
Stoppage rate (tracked wins)‡not comparable
—39%
Times stopped‡max 3
1 (edge)
3
Title reignsmax 2
0
2 (edge)
Bouts per year§not comparable
—5
Bouts trackedcoveragemax 58
1
58

† 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

Agenot held
Michiyosi Koizumi: No date of birth
Yoshio Shirai: Died aged 80
Stance
Michiyosi Koizumi: Not recorded
Yoshio Shirai: Orthodox

Michiyosi Koizumi left, Yoshio Shirai right, as everywhere on this page. Age is stated, not scored — neither age nor stance carries an edge.

How They Win

Tracked bouts only
Michiyosi Koizumi0 wins · from 1 tracked bout

Michiyosi Koizumi: no tracked wins in the 1 bout Kill The Body has ingested.

No tracked wins for Koizumi yet.

Yoshio Shirai46 wins · from 58 tracked bouts

Yoshio Shirai: 46 tracked wins — 18 by KO/TKO (39%), 27 on the cards (59%) and 1 by another method or unrecorded (2%). Counted from 58 bouts Kill The Body has ingested.

18 by KO/TKO 39%27 on the cards 59%1 by another method or unrecorded 2%

One square per tracked win. Counted from the bouts Kill The Body has ingested for each fighter — Michiyosi Koizumi 1, Yoshio Shirai 58 — 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

Michiyosi Koizumi last boxed on Dec 25, 1947 — 28,804 days ago. Koizumi had lost the most recent, to Yoshio Shirai.L

Shirai Dec 1947

Yoshio Shirai has lost two straight, after two straight wins. Shirai last boxed on May 30, 1955.DWWLL

Pérez Jul 1954Barenghi Aug 1954Seno Sep 1954Pérez Nov 1954Pérez May 19555 tracked bouts per year

Common Questions

With the rows behind them
Have Michiyosi Koizumi and Yoshio Shirai ever fought each other?
Yes. Michiyosi Koizumi and Yoshio Shirai met once on December 25, 1947, and Yoshio Shirai won by KO in round 2.
The meeting

LDec 25, 1947 · Shirai · KO R2

Head to Head ↓
Who has the better record, Koizumi or Shirai?
Michiyosi Koizumi is 0-1 across the 1 bout Kill The Body has tracked and Yoshio Shirai is 46-8-4. Yoshio Shirai has the higher win percentage. Records shown as tracked have not yet been independently verified as complete career totals.
Records · win %

Koizumi0–10%

Shirai46–8–482.8%

The Numbers ↓
Who has more knockouts, Koizumi or Shirai?
Michiyosi Koizumi has 0 knockout wins and Yoshio Shirai has 18. Yoshio Shirai has more.
Knockout wins · KO rate

Koizumi0

Shirai1839.1%

The Numbers ↓
Do Koizumi and Shirai have any common opponents?
Kill The Body's bout data shows no opponents that both Michiyosi Koizumi and Yoshio Shirai have faced.
How much fight data does Kill The Body have on Koizumi and Shirai?
This comparison is drawn from 1 bout tracked for Michiyosi Koizumi and 58 bouts tracked for Yoshio Shirai. Method and activity splits reflect those bouts only.
Bouts tracked · no edge

Koizumi1bout

Shirai58bouts

How They Win ↓

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