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Kill The Body

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Harry Warren vs Philadelphia Jack O'Brien — record, stats and common opponents compared

Harry Warren

🇺🇸HEAVYWEIGHT

Philadelphia Jack O'Brien

Harry Warren (0-0-1 across 1 tracked bout) and Philadelphia Jack O'Brien (147-16-24) 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.

Warren

Tracked record

0–0–1

counted from 1 bout Kill The Body has ingested

O'Brien

147

Wins55 KO · 37%

16

Losses

24

Draws188 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

Series level 0–0 with 1 draw

Harry Warren and Philadelphia Jack O'Brien have met 1 time; Series level 0–0 with 1 draw.

Harry Warren and Philadelphia Jack O'Brien have met 1 time; Series level 0–0 with 1 draw.
Met1898Dec 9Series
Harry WarrenFighter ADDraw0–0–1W–L–D
Philadelphia Jack O'BrienFighter BDDraw0–0–1W–L–D
ResultNWS1Meeting

The Numbers

Warren 1 · O'Brien 3 of 4 measurable rows
WarrenO'Brien
Record†
0-0-1147-16-24 (edge)
Win %0–100%
50%
85% (edge)
Wins by knockoutmax 55
0
55 (edge)
KO ratenot comparable
—37.41%
Stoppage rate (tracked wins)‡not comparable
—37%
Times stopped‡max 3
0 (edge)
3
Title reignslevelmax 0
0
0
Bouts per year§not comparable
—12.8
Bouts trackedcoveragemax 188
1
188

† 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
Harry Warren: No date of birth
Philadelphia Jack O'Brien: Died aged 64
Stance
Harry Warren: Not recorded
Philadelphia Jack O'Brien: Orthodox

Harry Warren left, Philadelphia Jack O'Brien right, as everywhere on this page. Age is stated, not scored — neither age nor stance carries an edge.

How They Win

Tracked bouts only
Harry Warren0 wins · from 1 tracked bout

Harry Warren: no tracked wins in the 1 bout Kill The Body has ingested.

No tracked wins for Warren yet.

Philadelphia Jack O'Brien147 wins · from 188 tracked bouts

Philadelphia Jack O'Brien: 147 tracked wins — 55 by KO/TKO (37%), 29 on the cards (20%) and 63 by another method or unrecorded (43%). Counted from 188 bouts Kill The Body has ingested.

55 by KO/TKO 37%29 on the cards 20%63 by another method or unrecorded 43%

One square per tracked win. Counted from the bouts Kill The Body has ingested for each fighter — Harry Warren 1, Philadelphia Jack O'Brien 188 — 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

Harry Warren last boxed on Dec 9, 1898 — 46,715 days ago. Warren had drawn the most recent tracked bout with Philadelphia Jack O'Brien.D

O'Brien Dec 1898

Philadelphia Jack O'Brien has lost three straight, after one straight win. O'Brien last boxed on Aug 15, 1911.LWLLL

Kaufman Apr 1910Schreck May 1910Koch Jun 1910Ramsey Nov 1910Langford Aug 191112.8 tracked bouts per year

Common Questions

With the rows behind them
Have Harry Warren and Philadelphia Jack O'Brien ever fought each other?
Yes. Harry Warren and Philadelphia Jack O'Brien met once on December 9, 1898, and the bout was a draw by NWS.
The meeting

DDec 9, 1898 · Draw · NWS

Head to Head ↓
Who has the better record, Warren or O'Brien?
Harry Warren is 0-0-1 across the 1 bout Kill The Body has tracked and Philadelphia Jack O'Brien is 147-16-24. Philadelphia Jack O'Brien has the higher win percentage. Records shown as tracked have not yet been independently verified as complete career totals.
Records · win %

Warren0–0–150%

O'Brien147–16–2485%

The Numbers ↓
Who has more knockouts, Warren or O'Brien?
Harry Warren has 0 knockout wins and Philadelphia Jack O'Brien has 55. Philadelphia Jack O'Brien has more.
Knockout wins · KO rate

Warren0

O'Brien5537.4%

The Numbers ↓
Do Warren and O'Brien have any common opponents?
Kill The Body's bout data shows no opponents that both Harry Warren and Philadelphia Jack O'Brien have faced.
How much fight data does Kill The Body have on Warren and O'Brien?
This comparison is drawn from 1 bout tracked for Harry Warren and 188 bouts tracked for Philadelphia Jack O'Brien. Method and activity splits reflect those bouts only.
Bouts tracked · no edge

Warren1bout

O'Brien188bouts

How They Win ↓

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