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.
Benny Leonard (185-22-9) and Shamus O'Brien (3-7 across 10 tracked bouts) are compared on record, finishing method, activity, and common opponents on Kill The Body. The two have met 2 times. They share 2 common opponents.
Benny Leonard vs Shamus O'Brien — record, stats and common opponents compared
Head to Head
Benny Leonard leads 2–0- Benny Leonard wonLeonard vs O'BrienMar 17, 1916 · TKO · R7
- Benny Leonard wonLeonard vs O'BrienFeb 11, 1916 · NWS
The Numbers
- 185-22-9 (edge)
- Record
- 3-7
- 87.7% (edge)
- Win %
- 30%
- 70 (edge)
- Wins by knockout
- 0
- 37.84%
- KO rate
- —
- 38% (edge)
- Stoppage rate (tracked wins)
- 0%
- 5
- Times stopped
- 1 (edge)
- 0
- Title reigns
- 0
- 10.3 (edge)
- Bouts per year
- 1.5
- 217
- Bouts tracked
- 10
One or both records are tracked, not career-verified.
Counted from bouts Kill The Body has ingested, not a career total.
Counted from bouts Kill The Body has ingested, not a career total.
Across each fighter's tracked career span.
Tale of the Tape
- 5′5″ (165 cm)
- Height
- —
- 69″ (175 cm)
- Reach
- —
- 130
- Age
- —
- Orthodox
- Stance
- —
- United States
- Nationality
- —
How They Win
Tracked bouts onlyBenny Leonard · 186 wins
KO/TKO
70
Decision
18
Other
98
Shamus O'Brien · 3 wins
KO/TKO
0
Decision
0
Other
3
Counted from the bouts Kill The Body has ingested for each fighter (217 and 10 respectively), not from a career-complete method table.
Common Opponents
2 sharedBenny Leonard
WNWS · Feb 1920WNWS · Sep 1919WNWS · Jun 1919WNWS · Jan 1919LNWS · Nov 1916DNWS · Jun 1916DNWS · Mar 1916LNWS · Mar 1915Shamus O'Brien
LPTS · Jul 1922Benny Leonard
WTKO R8 · Jul 1922WUD · Feb 1922WNWS · Jun 1921WNWS · Feb 1916Shamus O'Brien
LNWS · Sep 1916
Shared opponents are matched on fighter identity, not on name — two different fighters with the same name never merge into one row.
Current Form
Benny Leonard
LWWWW
L1 streak · last fought Oct 7, 1932
Shamus O'Brien
LLLWL
L3 streak · last fought Oct 9, 1922
Common Questions
- Have Benny Leonard and Shamus O'Brien ever fought each other?
- Yes. Benny Leonard and Shamus O'Brien have met 2 times and Benny Leonard leads the series 2-0.
- Who has the better record, Benny Leonard or Shamus O'Brien?
- Benny Leonard is 185-22-9 and Shamus O'Brien is 3-7 across the 10 bouts Kill The Body has tracked. Benny Leonard has the higher win percentage. Records shown as tracked have not yet been independently verified as complete career totals.
- Who has more knockouts, Benny Leonard or Shamus O'Brien?
- Benny Leonard has 70 knockout wins and Shamus O'Brien has 0. Benny Leonard has more.
- Do Benny Leonard and Shamus O'Brien have any common opponents?
- Benny Leonard and Shamus O'Brien share 2 common opponents: Johnny Dundee and Rocky Kansas. Neither fighter fared better across the shared opponents overall.
- How much fight data does Kill The Body have on Benny Leonard and Shamus O'Brien?
- This comparison is drawn from 217 bouts tracked for Benny Leonard and 10 bouts tracked for Shamus O'Brien. Method and activity splits reflect those bouts only.