Have Bob Mashburn and Oscar Bonavena ever fought each other?

Yes. Bob Mashburn and Oscar Bonavena met once on September 21, 1974, and Oscar Bonavena won by KO in round 2.

Who has the better record, Mashburn or Bonavena?

Bob Mashburn is 0-5 across the 5 bouts Kill The Body has tracked and Oscar Bonavena is 58-9-1. Oscar Bonavena has the higher win percentage. Records shown as tracked have not yet been independently verified as complete career totals.

Who has more knockouts, Mashburn or Bonavena?

Bob Mashburn has 0 knockout wins and Oscar Bonavena has 44. Oscar Bonavena has more.

Do Mashburn and Bonavena have any common opponents?

Bob Mashburn and Oscar Bonavena share 1 common opponent: Alvin Lewis. Oscar Bonavena fared better against 1 of them.

How much fight data does Kill The Body have on Mashburn and Bonavena?

This comparison is drawn from 5 bouts tracked for Bob Mashburn and 68 bouts tracked for Oscar Bonavena. Method and activity splits reflect those bouts only.

Bob Mashburn vs Oscar Bonavena — Records, Stats & Common Opponents

Bob Mashburn

🇦🇷HEAVYWEIGHT

Oscar Bonavena

Bob Mashburn (0-5 across 5 tracked bouts) and Oscar Bonavena (58-9-1) are compared on record, finishing method, activity, and common opponents on Kill The Body. The two have met once. They share 1 common opponent.

Mashburn

Tracked record

0–5

counted from 5 bouts Kill The Body has ingested

Bonavena

Wins44 KO · 76%

Losses

Draw68 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

Bonavena leads 1–0

Bob Mashburn and Oscar Bonavena have met 1 time; Bonavena leads 1–0.
Met	1974Sep 21	Series
Bob MashburnFighter A	LLost	0–1W–L
Oscar BonavenaFighter B	WWon	1–0W–L
Result	KOR2Bonavena vs Mashburn	1Meeting

Bonavena vs Mashburn · Sep 21, 1974

The Numbers

Mashburn 0 · Bonavena 6 of 6 measurable rows

MashburnEdge = longer wingBonavena

Record^†: 0-558-9-1 (edge)
Win %0–100%: 0%
86% (edge)
Wins by knockoutmax 44: 0
44 (edge)
KO ratenot comparable: —75.86%
Stoppage rate (tracked wins)^‡not comparable: —76%
Times stopped^‡max 5: 5
1 (edge)
Title reignsmax 1: 0
1 (edge)
Bouts per year^§max 5.6: 1.1
5.6 (edge)
Bouts trackedcoveragemax 68: 5
68

† 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: Bob Mashburn: No date of birth; Oscar Bonavena: Died aged 33
Stance: Bob Mashburn: Not recorded; Oscar Bonavena: Orthodox

Bob Mashburn left, Oscar Bonavena right, as everywhere on this page. Age is stated, not scored — neither age nor stance carries an edge.

How They Win

Tracked bouts only

Bob Mashburn0 wins · from 5 tracked bouts

No tracked wins for Mashburn yet.

Oscar Bonavena58 wins · from 68 tracked bouts

44 by KO/TKO 76%13 on the cards 22%1 by another method or unrecorded 2%

One square per tracked win. Counted from the bouts Kill The Body has ingested for each fighter — Bob Mashburn 5, Oscar Bonavena 68 — not from a career-complete method table.

Common Opponents

1 shared

1 shared · Bonavena better on 11 shared · Oscar Bonavena better on 1

MashburnBob Mashburn

Opponent

BonavenaOscar Bonavena

Bob Mashburn
Loss, TKO
1971May 1971
LewisAlvin LewisUnited States 30–6Bonavena betterOscar Bonavena better — 1–0 to 0–1
Oscar Bonavena
Win, DQ 7
1971Oct 1971

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

Bob Mashburn last boxed on Sep 21, 1974 — 19,026 days ago. Mashburn had lost five straight.LLLLL

Norton Apr 1970Lewis May 1971Williams Jul 1972Holmes May 1974Bonavena Sep 19741.1 tracked bouts per year

Oscar Bonavena has won seven straight, the most recent against Billy Joiner. Bonavena last boxed on Feb 26, 1976.WWWWW

Mashburn Sep 1974Wright Oct 1974Vaka Nov 1974Gorosito Nov 1975Joiner Feb 19765.6 tracked bouts per year

Common Questions

With the rows behind them

Have Bob Mashburn and Oscar Bonavena ever fought each other?: Yes. Bob Mashburn and Oscar Bonavena met once on September 21, 1974, and Oscar Bonavena won by KO in round 2.
Who has the better record, Mashburn or Bonavena?: Bob Mashburn is 0-5 across the 5 bouts Kill The Body has tracked and Oscar Bonavena is 58-9-1. Oscar Bonavena has the higher win percentage. Records shown as tracked have not yet been independently verified as complete career totals.
Who has more knockouts, Mashburn or Bonavena?: Bob Mashburn has 0 knockout wins and Oscar Bonavena has 44. Oscar Bonavena has more.
Do Mashburn and Bonavena have any common opponents?: Bob Mashburn and Oscar Bonavena share 1 common opponent: Alvin Lewis. Oscar Bonavena fared better against 1 of them.
How much fight data does Kill The Body have on Mashburn and Bonavena?: This comparison is drawn from 5 bouts tracked for Bob Mashburn and 68 bouts tracked for Oscar Bonavena. Method and activity splits reflect those bouts only.

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Bob Mashburn vs Oscar Bonavena — record, stats and common opponents compared

Bob Mashburn

Oscar Bonavena