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Kill The Body

and the head will die

Cleveland Williams vs Jack O'Halloran — record, stats and common opponents compared

🇺🇸HEAVYWEIGHT

Cleveland Williams

🇺🇸UNITED STATES

Jack O'Halloran

Cleveland Williams (82-13-2) and Jack O'Halloran (34-21-2) are compared on record, finishing method, activity, and common opponents on Kill The Body. The two have met once. They share 6 common opponents.

Williams

82

Wins62 KO · 76%

13

Losses

2

Draws97 tracked bouts

O'Halloran

34

Wins17 KO · 50%

21

Losses

2

Draws58 tracked bouts

Head to Head

O'Halloran leads 1–0

Cleveland Williams and Jack O'Halloran have met 1 time; O'Halloran leads 1–0.

Cleveland Williams and Jack O'Halloran have met 1 time; O'Halloran leads 1–0.
Met1971Sep 21Series
Cleveland WilliamsFighter ALLost0–1W–L
Jack O'HalloranFighter BWWon1–0W–L
ResultSD1Meeting

The Numbers

Williams 5 · O'Halloran 1 of 6 measurable rows
WilliamsO'Halloran
Record
82-13-2 (edge)34-21-2
Win %0–100%
85.6% (edge)
61.4%
Wins by knockoutmax 62
62 (edge)
17
KO rate0–100%
75.61% (edge)
50%
Stoppage rate (tracked wins)†0–100%
76% (edge)
51%
Times stopped†levelmax 8
8
8
Title reignslevelmax 0
0
0
Bouts per year‡max 7.3
3.9
7.3 (edge)
Bouts trackedcoveragemax 97
97
58

† 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

Height+4″
Cleveland Williams: 6′2″
Jack O'Halloran: 6′6″ (edge)
Reach+5″
Cleveland Williams: 78″
Jack O'Halloran: 83″ (edge)
Agenot comparable
Cleveland Williams: Died aged 66
Jack O'Halloran: 83
Stance
Cleveland Williams: Not recorded
Jack O'Halloran: Orthodox

Cleveland Williams left, Jack O'Halloran right, as everywhere on this page. Age is stated, not scored — neither age nor stance carries an edge.

How They Win

Tracked bouts only
Cleveland Williams82 wins · from 97 tracked bouts

Cleveland Williams: 82 tracked wins — 62 by KO/TKO (76%), 19 on the cards (23%) and 1 by another method or unrecorded (1%). Counted from 97 bouts Kill The Body has ingested.

62 by KO/TKO 76%19 on the cards 23%1 by another method or unrecorded 1%

Jack O'Halloran35 wins · from 58 tracked bouts

Jack O'Halloran: 35 tracked wins — 18 by KO/TKO (51%) and 17 on the cards (49%). Counted from 58 bouts Kill The Body has ingested.

18 by KO/TKO 51%17 on the cards 49%

One square per tracked win. Counted from the bouts Kill The Body has ingested for each fighter — Cleveland Williams 97, Jack O'Halloran 58 — not from a career-complete method table.

Common Opponents

6 shared

6 shared · O'Halloran better on 3 · even on 3

Williams

Opponent

O'Halloran

  • Cleveland Williams

    Loss, TKO 4

    1970

    LewisO'Halloran better

    Jack O'Halloran

    Win, PTS

    1973

  • Cleveland Williams

    Win, UD

    1972

    DanielsEven

    Jack O'Halloran

    Win, TKO

    1971

  • Cleveland Williams

    0–2 against

    Loss, KO 3

    1969

    Loss, TKO 5

    1969

    FosterO'Halloran better

    Jack O'Halloran

    Loss, KO

    1970

  • Cleveland Williams

    Loss, TKO 8

    1969

    JonesEven

    Jack O'Halloran

    Loss, TKO

    1969

  • Cleveland Williams

    Win, UD

    1969

    PoliteEven

    Jack O'Halloran

    Win, TKO

    1968

  • Cleveland Williams

    Win, KO 1

    1968

    BruceO'Halloran better

    Jack O'Halloran

    2–0 against

    Win, KO

    1968

    Win, PTS

    1967

Both sides are set at the same size on purpose. Kill The Body does not score a second-round knockout above a split decision — the edge counts losses first and wins as the tiebreak, and the rest is yours to argue. Shared opponents are matched on fighter identity, not on name, so two different fighters with the same name never merge into one row.

Current Form

Oldest left · newest right

Cleveland Williams has won three straight since losses to Jack O'Halloran and George Chuvalo. Williams last boxed on Oct 28, 1973.LLWWW

O'Halloran Sep 1971Chuvalo Nov 1971Daniels May 1972Mashburn Jul 1972Davila Oct 19733.9 tracked bouts per year

Jack O'Halloran last boxed on Aug 16, 1974 — 19,055 days ago. O'Halloran had won two in a row before losing by stoppage to Howard Smith.LLWWL

Vailea Oct 1973Middleton Dec 1973Lee Jun 1974Kid Jul 1974Smith Aug 19747.3 tracked bouts per year

Common Questions

With the rows behind them
Have Cleveland Williams and Jack O'Halloran ever fought each other?
Yes. Cleveland Williams and Jack O'Halloran met once on September 21, 1971, and Jack O'Halloran won by SD.
The meeting

LSep 21, 1971 · O'Halloran · SD

Head to Head ↓
Who has the better record, Williams or O'Halloran?
Cleveland Williams is 82-13-2 and Jack O'Halloran is 34-21-2. Cleveland Williams has the higher win percentage.
Records · win %

Williams82–13–285.6%

O'Halloran34–21–261.4%

The Numbers ↓
Who has more knockouts, Williams or O'Halloran?
Cleveland Williams has 62 knockout wins and Jack O'Halloran has 17. Cleveland Williams has more.
Knockout wins · KO rate

Williams6275.6%

O'Halloran1750%

The Numbers ↓
Do Williams and O'Halloran have any common opponents?
Cleveland Williams and Jack O'Halloran share 6 common opponents: Alvin Lewis, Terry Daniels and Mac Foster (and 3 others). Jack O'Halloran fared better against 3 of them.
6 shared opponents

Alvin LewisLW

Terry DanielsWW

Mac FosterLL

Al JonesLL

and 2 more

Common Opponents ↓
Who is bigger, Williams or O'Halloran?
Jack O'Halloran is the taller fighter at 198 cm, 10 cm above the other. Jack O'Halloran also has the longer reach, by 13 cm.
Height · reach

Williams188 cm198 cm reach

O'Halloran198 cm211 cm reach

Tale of the Tape ↓
How much fight data does Kill The Body have on Williams and O'Halloran?
This comparison is drawn from 97 bouts tracked for Cleveland Williams and 58 bouts tracked for Jack O'Halloran. Method and activity splits reflect those bouts only.
Bouts tracked · no edge

Williams97bouts

O'Halloran58bouts

How They Win ↓

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6 suggested matchups

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