Skip to main content
Kill The Body

and the head will die

Jeff Smith vs Jim O'Brien — record, stats and common opponents compared

🇺🇸UNITED STATES

Jeff Smith

Jim O'Brien

Jeff Smith (141-34-5) and Jim O'Brien (0-4-1 across 5 tracked bouts) 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.

Smith

141

Wins48 KO · 34%

34

Losses

5

Draws183 tracked bouts

O'Brien

Tracked record

0–4–1

counted from 5 bouts 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

Smith leads 1–0

Jeff Smith and Jim O'Brien have met 1 time; Smith leads 1–0.

Jeff Smith and Jim O'Brien have met 1 time; Smith leads 1–0.
Met1912Dec 21Series
Jeff SmithFighter AWWon1–0W–L
Jim O'BrienFighter BLLost0–1W–L
ResultKOR31Meeting

The Numbers

Smith 4 · O'Brien 0 of 4 measurable rows
SmithO'Brien
Record†
141-34-5 (edge)0-4-1
Win %0–100%
79.7% (edge)
10%
Wins by knockoutmax 48
48 (edge)
0
KO ratenot comparable
34.04%—
Stoppage rate (tracked wins)‡not comparable
34%—
Times stopped‡levelmax 3
3
3
Title reignslevelmax 0
0
0
Bouts per year§max 10.3
10.3 (edge)
0.2
Bouts trackedcoveragemax 183
183
5

† 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
Jeff Smith: 5′9″
Jim O'Brien: No height on file
Reachnot held
Jeff Smith: 71″
Jim O'Brien: No reach on file
Agenot held
Jeff Smith: Died aged 70
Jim O'Brien: No date of birth
Stance
Jeff Smith: Orthodox
Jim O'Brien: Not recorded

Jeff Smith left, Jim 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
Jeff Smith141 wins · from 183 tracked bouts

Jeff Smith: 141 tracked wins — 48 by KO/TKO (34%), 37 on the cards (26%) and 56 by another method or unrecorded (40%). Counted from 183 bouts Kill The Body has ingested.

48 by KO/TKO 34%37 on the cards 26%56 by another method or unrecorded 40%

Jim O'Brien0 wins · from 5 tracked bouts

Jim O'Brien: no tracked wins in the 5 bouts Kill The Body has ingested.

No tracked wins for O'Brien yet.

One square per tracked win. Counted from the bouts Kill The Body has ingested for each fighter — Jeff Smith 183, Jim O'Brien 5 — 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

Jeff Smith has lost four straight, after one straight win. Smith last boxed on Nov 18, 1927.WLLLL

Roberts Mar 1927Cullen Apr 1927Manley Jun 1927Manley Jul 1927Brown Nov 192710.3 tracked bouts per year

Jim O'Brien last boxed on Dec 21, 1912 — 41,575 days ago. O'Brien had lost four straight.DLLLL

Martin Dec 1886Martin Feb 1887Burns Feb 1903Burns Mar 1906Smith Dec 19120.2 tracked bouts per year

Common Questions

With the rows behind them
Have Jeff Smith and Jim O'Brien ever fought each other?
Yes. Jeff Smith and Jim O'Brien met once on December 21, 1912, and Jeff Smith won by KO in round 3.
The meeting

WDec 21, 1912 · Smith · KO R3

Head to Head ↓
Who has the better record, Smith or O'Brien?
Jeff Smith is 141-34-5 and Jim O'Brien is 0-4-1 across the 5 bouts Kill The Body has tracked. Jeff Smith has the higher win percentage. Records shown as tracked have not yet been independently verified as complete career totals.
Records · win %

Smith141–34–579.7%

O'Brien0–4–110%

The Numbers ↓
Who has more knockouts, Smith or O'Brien?
Jeff Smith has 48 knockout wins and Jim O'Brien has 0. Jeff Smith has more.
Knockout wins · KO rate

Smith4834%

O'Brien0

The Numbers ↓
Do Smith and O'Brien have any common opponents?
Kill The Body's bout data shows no opponents that both Jeff Smith and Jim O'Brien have faced.
How much fight data does Kill The Body have on Smith and O'Brien?
This comparison is drawn from 183 bouts tracked for Jeff Smith and 5 bouts tracked for Jim O'Brien. Method and activity splits reflect those bouts only.
Bouts tracked · no edge

Smith183bouts

O'Brien5bouts

How They Win ↓

Compare someone else

6 suggested matchups

Compare Smith with…

Compare O'Brien with…

Someone else?

Release either fighter to put someone new in that slot — the other one stays put.