Have George Byers and Philadelphia Jack O'Brien ever fought each other?

Yes. George Byers and Philadelphia Jack O'Brien met once on May 23, 1903, and Philadelphia Jack O'Brien won by NWS.

Who has the better record, Byers or O'Brien?

George Byers is 20-8-21 and Philadelphia Jack O'Brien is 147-16-24. Philadelphia Jack O'Brien has the higher win percentage.

Who has more knockouts, Byers or O'Brien?

George Byers has 13 knockout wins and Philadelphia Jack O'Brien has 55. Philadelphia Jack O'Brien has more.

Do Byers and O'Brien have any common opponents?

George Byers and Philadelphia Jack O'Brien share 5 common opponents: Jack Bonner, Jack Twin Sullivan and Billy Stift (and 2 others). Philadelphia Jack O'Brien fared better against 4 of them.

How much fight data does Kill The Body have on Byers and O'Brien?

This comparison is drawn from 51 bouts tracked for George Byers and 188 bouts tracked for Philadelphia Jack O'Brien. Method and activity splits reflect those bouts only.

George Byers vs Philadelphia Jack O'Brien — Records, Stats & Common Opponents

🇨🇦LIGHT HEAVYWEIGHT, HEAVYWEIGHT

George Byers (20-8-21) and Philadelphia Jack O'Brien (147-16-24) are compared on record, finishing method, activity, and common opponents on Kill The Body. The two have met once. They share 5 common opponents.

Byers

Wins13 KO · 65%

Losses

Draws51 tracked bouts

O'Brien

147

Wins55 KO · 37%

Losses

Draws188 tracked bouts

Head to Head

O'Brien leads 1–0

George Byers and Philadelphia Jack O'Brien have met 1 time; O'Brien leads 1–0.
Met	1903May 23	Series
George ByersFighter A	LLost	0–1W–L
Philadelphia Jack O'BrienFighter B	WWon	1–0W–L
Result	NWSO'Brien vs Byers	1Meeting

O'Brien vs Byers · May 23, 1903

The Numbers

Byers 2 · O'Brien 5 of 7 measurable rows

ByersEdge = longer wingO'Brien

Record: 20-8-21147-16-24 (edge)
Win %0–100%: 62.2%
85% (edge)
Wins by knockoutmax 55: 13
55 (edge)
KO rate0–100%: 65% (edge)
37.41%
Stoppage rate (tracked wins)^†0–100%: 70% (edge)
37%
Times stopped^†max 4: 4
3 (edge)
Title reignslevelmax 0: 0
0
Bouts per year^‡max 12.8: 5.9
12.8 (edge)
Bouts trackedcoveragemax 188: 51
188

† 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: George Byers: 5′9″; Philadelphia Jack O'Brien: No height on file
Agenot comparable: George Byers: Died aged 64; Philadelphia Jack O'Brien: Died aged 64
Stance: George Byers: Not recorded; Philadelphia Jack O'Brien: Orthodox

George Byers left, Philadelphia Jack O'Brien right, as everywhere on this page. Age is stated, not scored — neither age nor stance carries an edge.

How They Win

Tracked bouts only

George Byers20 wins · from 51 tracked bouts

14 by KO/TKO 70%6 on the cards 30%

Philadelphia Jack O'Brien147 wins · from 188 tracked bouts

55 by KO/TKO 37%29 on the cards 20%63 by another method or unrecorded 43%

One square per tracked win. Counted from the bouts Kill The Body has ingested for each fighter — George Byers 51, Philadelphia Jack O'Brien 188 — not from a career-complete method table.

Common Opponents

5 shared

5 shared · O'Brien better on 4 · even on 15 shared · Philadelphia Jack O'Brien better on 4 · even on 1

ByersGeorge Byers

Opponent

O'BrienPhiladelphia Jack O'Brien

George Byers
Draw, PTS
1898Dec 1898
BonnerJack BonnerO'Brien betterPhiladelphia Jack O'Brien better — 4–0 to 0–0–1
Philadelphia Jack O'Brien
4–0 against
Win, NWS
1908Mar 1908
Win, NWS
1903Jun 1903
Result unrecorded, ND
1902Jun 1902
Win, NWS
1902May 1902
Win, NWS
1900Oct 1900
George Byers
Draw, PTS
1902Dec 1902
SullivanJack Twin SullivanUnited StatesO'Brien betterPhiladelphia Jack O'Brien better — 3–0–1 to 0–0–1
Philadelphia Jack O'Brien
3–0–1 against
Draw, PTS
1905Jul 1905
Win, KO 3
1904Apr 1904
Win, PTS
1903Dec 1903
Win, NWS
1903Nov 1903
George Byers
0–1–1 against
Loss, PTS
1901Nov 1901
Draw, PTS
1899Jun 1899
StiftBilly StiftO'Brien betterPhiladelphia Jack O'Brien better — 2–0 to 0–1–1
Philadelphia Jack O'Brien
2–0 against
Win, KO 2
1904Sep 1904
Win, PTS
1902Sep 1902
George Byers
1–0–2 against
Draw, PTS
1904May 1904
Draw, PTS
1903Feb 1903
Win, PTS
1902May 1902
HagheyCharlie HagheyEvenEven — George Byers 1–0–2, Philadelphia Jack O'Brien 1–0
Philadelphia Jack O'Brien
Win, KO 3
1903Sep 1903
George Byers
Loss, KO 7
1899Sep 1899
WestTommy WestO'Brien betterPhiladelphia Jack O'Brien better — 1–0 to 0–1
Philadelphia Jack O'Brien
Win, NWS
1900Oct 1900

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

George Byers drew the most recent tracked bout with Charlie Haghey. Byers last boxed on May 3, 1904.LWWWD

O'Brien May 1903Moore Jul 1903Fitzsimmons Mar 1904Robinson Mar 1904Haghey May 19045.9 tracked bouts per year

Philadelphia Jack O'Brien has lost three straight, after one straight win. O'Brien last boxed on Aug 15, 1911.LWLLL

Kaufman Apr 1910Schreck May 1910Koch Jun 1910Ramsey Nov 1910Langford Aug 191112.8 tracked bouts per year

Common Questions

With the rows behind them

Have George Byers and Philadelphia Jack O'Brien ever fought each other?: Yes. George Byers and Philadelphia Jack O'Brien met once on May 23, 1903, and Philadelphia Jack O'Brien won by NWS.
Who has the better record, Byers or O'Brien?: George Byers is 20-8-21 and Philadelphia Jack O'Brien is 147-16-24. Philadelphia Jack O'Brien has the higher win percentage.
Who has more knockouts, Byers or O'Brien?: George Byers has 13 knockout wins and Philadelphia Jack O'Brien has 55. Philadelphia Jack O'Brien has more.
Do Byers and O'Brien have any common opponents?: George Byers and Philadelphia Jack O'Brien share 5 common opponents: Jack Bonner, Jack Twin Sullivan and Billy Stift (and 2 others). Philadelphia Jack O'Brien fared better against 4 of them.
How much fight data does Kill The Body have on Byers and O'Brien?: This comparison is drawn from 51 bouts tracked for George Byers and 188 bouts tracked for Philadelphia Jack O'Brien. Method and activity splits reflect those bouts only.

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George Byers vs Philadelphia Jack O'Brien — record, stats and common opponents compared

George Byers

Philadelphia Jack O'Brien