Skip to main content
Kill The Body

and the head will die

Billy O'Neill vs Don Fullmer — record, stats and common opponents compared

Billy O'Neill

🇺🇸MIDDLEWEIGHT

Don Fullmer

Billy O'Neill (0-1 across 1 tracked bout) and Don Fullmer (54-20-5) 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.

O'Neill

Tracked record

0–1

counted from 1 bout Kill The Body has ingested

Fullmer

54

Wins14 KO · 26%

20

Losses

5

Draws79 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

Fullmer leads 1–0

Billy O'Neill and Don Fullmer have met 1 time; Fullmer leads 1–0.

Billy O'Neill and Don Fullmer have met 1 time; Fullmer leads 1–0.
Met1958Feb 10Series
Billy O'NeillFighter ALLost0–1W–L
Don FullmerFighter BWWon1–0W–L
ResultUD1Meeting

The Numbers

O'Neill 1 · Fullmer 3 of 4 measurable rows
O'NeillFullmer
Record†
0-154-20-5 (edge)
Win %0–100%
0%
71.5% (edge)
Wins by knockoutmax 14
0
14 (edge)
KO ratenot comparable
—25.93%
Stoppage rate (tracked wins)‡not comparable
—26%
Times stopped‡max 2
0 (edge)
2
Title reignslevelmax 0
0
0
Bouts per year§not comparable
—5.2
Bouts trackedcoveragemax 79
1
79

† 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
Billy O'Neill: No height on file
Don Fullmer: 5′8″
Reachnot held
Billy O'Neill: No reach on file
Don Fullmer: 70″
Agenot held
Billy O'Neill: No date of birth
Don Fullmer: Died aged 72
Stance
Billy O'Neill: Not recorded
Don Fullmer: Orthodox

Billy O'Neill left, Don Fullmer right, as everywhere on this page. Age is stated, not scored — neither age nor stance carries an edge.

How They Win

Tracked bouts only
Billy O'Neill0 wins · from 1 tracked bout

Billy O'Neill: no tracked wins in the 1 bout Kill The Body has ingested.

No tracked wins for O'Neill yet.

Don Fullmer54 wins · from 79 tracked bouts

Don Fullmer: 54 tracked wins — 14 by KO/TKO (26%) and 40 on the cards (74%). Counted from 79 bouts Kill The Body has ingested.

14 by KO/TKO 26%40 on the cards 74%

One square per tracked win. Counted from the bouts Kill The Body has ingested for each fighter — Billy O'Neill 1, Don Fullmer 79 — 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

Billy O'Neill last boxed on Feb 10, 1958 — 25,099 days ago. O'Neill had lost the most recent, to Don Fullmer.L

Fullmer Feb 1958

Don Fullmer has won once since losing a decision to Richie Kates. Fullmer last boxed on Oct 14, 1972.LWWLW

Fourie Feb 1972Kendall Apr 1972Vasquez May 1972Kates Sep 1972Rendon Oct 19725.2 tracked bouts per year

Common Questions

With the rows behind them
Have Billy O'Neill and Don Fullmer ever fought each other?
Yes. Billy O'Neill and Don Fullmer met once on February 10, 1958, and Don Fullmer won by UD.
The meeting

LFeb 10, 1958 · Fullmer · UD

Head to Head ↓
Who has the better record, O'Neill or Fullmer?
Billy O'Neill is 0-1 across the 1 bout Kill The Body has tracked and Don Fullmer is 54-20-5. Don Fullmer has the higher win percentage. Records shown as tracked have not yet been independently verified as complete career totals.
Records · win %

O'Neill0–10%

Fullmer54–20–571.5%

The Numbers ↓
Who has more knockouts, O'Neill or Fullmer?
Billy O'Neill has 0 knockout wins and Don Fullmer has 14. Don Fullmer has more.
Knockout wins · KO rate

O'Neill0

Fullmer1425.9%

The Numbers ↓
Do O'Neill and Fullmer have any common opponents?
Kill The Body's bout data shows no opponents that both Billy O'Neill and Don Fullmer have faced.
How much fight data does Kill The Body have on O'Neill and Fullmer?
This comparison is drawn from 1 bout tracked for Billy O'Neill and 79 bouts tracked for Don Fullmer. Method and activity splits reflect those bouts only.
Bouts tracked · no edge

O'Neill1bout

Fullmer79bouts

How They Win ↓

Compare someone else

3 suggested matchups

Compare Fullmer with…

Someone else?

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

Billy O'Neill vs Don Fullmer — Records, Stats & Common Opponents