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.
Harry Greb (261-18-19) and Jack Duffy (2-5 across 7 tracked bouts) are compared on record, finishing method, activity, and common opponents on Kill The Body. The two have met once. They share 2 common opponents.
Harry Greb vs Jack Duffy — record, stats and common opponents compared
Head to Head
Harry Greb leads 1–0- Harry Greb wonGreb vs DuffyDec 11, 1920 · TKO · R6
The Numbers
- 261-18-19 (edge)
- Record
- 2-5
- 90.8% (edge)
- Win %
- 28.6%
- 49 (edge)
- Wins by knockout
- 0
- 18.77%
- KO rate
- —
- 19% (edge)
- Stoppage rate (tracked wins)
- 0%
- 2 (edge)
- Times stopped
- 3
- 2 (edge)
- Title reigns
- 0
- 22.6 (edge)
- Bouts per year
- 0.7
- 300
- Bouts tracked
- 7
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′8″ (173 cm)
- Height
- —
- 71″ (180 cm)
- Reach
- —
- 132
- Age
- —
- Orthodox
- Stance
- —
- Middleweight
- Division
- —
- United States
- Nationality
- —
How They Win
Tracked bouts onlyHarry Greb · 262 wins
KO/TKO
49
Decision
59
Other
154
Jack Duffy · 2 wins
KO/TKO
0
Decision
0
Other
2
Counted from the bouts Kill The Body has ingested for each fighter (300 and 7 respectively), not from a career-complete method table.
Common Opponents
2 sharedHarry Greb
WPTS · Nov 1917WNWS · May 1917LNWS · Jun 1916DNWS · Oct 1915Jack Duffy
LKO R10 · Jan 1921
Shared opponents are matched on fighter identity, not on name — two different fighters with the same name never merge into one row.
Current Form
Harry Greb
LWWLW
L1 streak · last fought Aug 19, 1926
Jack Duffy
WLWLL
W1 streak · last fought Apr 3, 1928
Common Questions
- Have Harry Greb and Jack Duffy ever fought each other?
- Yes. Harry Greb and Jack Duffy met once on December 11, 1920, and Harry Greb won by TKO in round 6.
- Who has the better record, Harry Greb or Jack Duffy?
- Harry Greb is 261-18-19 and Jack Duffy is 2-5 across the 7 bouts Kill The Body has tracked. Harry Greb has the higher win percentage. Records shown as tracked have not yet been independently verified as complete career totals.
- Who has more knockouts, Harry Greb or Jack Duffy?
- Harry Greb has 49 knockout wins and Jack Duffy has 0. Harry Greb has more.
- Do Harry Greb and Jack Duffy have any common opponents?
- Harry Greb and Jack Duffy share 2 common opponents: George Chip and Jack Dillon. Harry Greb fared better against 2 of them.
- How much fight data does Kill The Body have on Harry Greb and Jack Duffy?
- This comparison is drawn from 300 bouts tracked for Harry Greb and 7 bouts tracked for Jack Duffy. Method and activity splits reflect those bouts only.