Have Billy Petrole and Stanislaus Loayza ever fought each other?

Yes. Billy Petrole and Stanislaus Loayza have met 2 times and Billy Petrole leads the series 2-0.

Who has the better record, Petrole or Loayza?

Billy Petrole is 122-26-15 and Stanislaus Loayza is 3-10-1 across the 14 bouts Kill The Body has tracked. Billy Petrole has the higher win percentage. Records shown as tracked have not yet been independently verified as complete career totals.

Who has more knockouts, Petrole or Loayza?

Billy Petrole has 65 knockout wins and Stanislaus Loayza has 0. Billy Petrole has more.

Do Petrole and Loayza have any common opponents?

Billy Petrole and Stanislaus Loayza share 6 common opponents: Bep van Klaveren, Tony Canzoneri and Jimmy McLarnin (and 3 others). Neither fighter fared better across the shared opponents overall.

How much fight data does Kill The Body have on Petrole and Loayza?

This comparison is drawn from 164 bouts tracked for Billy Petrole and 14 bouts tracked for Stanislaus Loayza. Method and activity splits reflect those bouts only.

Billy Petrole vs Stanislaus Loayza — Records, Stats & Common Opponents

🇺🇸LIGHTWEIGHT

Billy Petrole

Stanislaus Loayza

Billy Petrole (122-26-15) and Stanislaus Loayza (3-10-1 across 14 tracked bouts) are compared on record, finishing method, activity, and common opponents on Kill The Body. The two have met 2 times. They share 6 common opponents.

Petrole

122

Wins65 KO · 53%

Losses

Draws164 tracked bouts

Loayza

Tracked record

3–10–1

counted from 14 bouts Kill The Body has ingested

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

Petrole leads 2–0

Billy Petrole and Stanislaus Loayza have met 2 times; Petrole leads 2–0.
Met	1928Sep 21	1933Dec 12	Series
Billy PetroleFighter A	WWon	WWon	2–0W–L
Stanislaus LoayzaFighter B	LLost	LLost	0–2W–L
Result	TKOR2Petrole vs Loayza	TKOR6Petrole vs Loayza	2Meetings

The Numbers

Petrole 6 · Loayza 0 of 6 measurable rows

PetroleEdge = longer wingLoayza

Record^†: 122-26-15 (edge)3-10-1
Win %0–100%: 79.4% (edge)
25%
Wins by knockoutmax 65: 65 (edge)
0
KO ratenot comparable: 53.28%—
Stoppage rate (tracked wins)^‡0–100%: 53% (edge)
0%
Times stopped^‡max 4: 3 (edge)
4
Title reignslevelmax 0: 0
0
Bouts per year^§max 14: 14 (edge)
1.6
Bouts trackedcoveragemax 164: 164
14

† 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

Reachnot held: Billy Petrole: 70″; Stanislaus Loayza: No reach on file
Agenot held: Billy Petrole: Died aged 78; Stanislaus Loayza: No date of birth
Stance: Billy Petrole: Orthodox; Stanislaus Loayza: Not recorded

Billy Petrole left, Stanislaus Loayza right, as everywhere on this page. Age is stated, not scored — neither age nor stance carries an edge.

How They Win

Tracked bouts only

Billy Petrole122 wins · from 164 tracked bouts

65 by KO/TKO 53%19 on the cards 16%38 by another method or unrecorded 31%

Stanislaus Loayza3 wins · from 14 tracked bouts

2 on the cards 67%1 by another method or unrecorded 33%

One square per tracked win. Counted from the bouts Kill The Body has ingested for each fighter — Billy Petrole 164, Stanislaus Loayza 14 — not from a career-complete method table.

Common Opponents

6 shared

6 shared · Petrole better on 3 · Loayza better on 36 shared · Billy Petrole better on 3 · Stanislaus Loayza better on 3

PetroleBilly Petrole

Opponent

LoayzaStanislaus Loayza

Billy Petrole
Win, RTD 4
1933Jul 1933
KlaverenBep van KlaverenNetherlands 80–21–9Petrole betterBilly Petrole better — 1–0 to 0–1
Stanislaus Loayza
Loss, PTS
1933Nov 1933
Billy Petrole
1–1 against
Loss, UD
1932Nov 1932
Win, PTS
1930Sep 1930
CanzoneriTony CanzoneriUnited States 141–24–10Petrole betterBilly Petrole better — 1–1 to 0–2
Stanislaus Loayza
0–2 against
Loss, UD
1930Mar 1930
Loss, UD
1929Oct 1929
Billy Petrole
1–2 against
Loss, UD
1931Aug 1931
Loss, UD
1931May 1931
Win, UD
1930Nov 1930
McLarninJimmy McLarninIreland 55–11–3 · FlyweightLoayza betterStanislaus Loayza better — 0–1 to 1–2
Stanislaus Loayza
Loss, KO 4
1928Aug 1928
Billy Petrole
1–1–1 against
Loss, UD
1930Oct 1930
Win, TKO 5
1928Aug 1928
Draw, PTS
1928Jul 1928
BergJack Kid BergUnited Kingdom 157–26–9 · LightweightLoayza betterStanislaus Loayza better — 0–0–1 to 1–1–1
Stanislaus Loayza
Draw, PTS
1929Jun 1929
Billy Petrole
Loss, UD
1926Jun 1926
TerrisSid TerrisUnited States 99–13–5Loayza betterStanislaus Loayza better — 1–1 to 0–1
Stanislaus Loayza
1–1 against
Win, PTS
1929Oct 1929
Loss, PTS
1927May 1927
Billy Petrole
Win, NWS
1929Jul 1929
GoodrichJimmy GoodrichUnited States 118–52–25Petrole betterBilly Petrole better — 1–0 to 0–1
Stanislaus Loayza
Loss, TKO 2
1925Jul 1925

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

Billy Petrole had won two in a row before losing a decision to Barney Ross. Petrole last boxed on Jan 24, 1934.WDWWL

Klaveren Jul 1933Fuller Sep 1933Fuller Oct 1933Loayza Dec 1933Ross Jan 193414 tracked bouts per year

Stanislaus Loayza last boxed on May 31, 1934 — 33,745 days ago. Loayza had lost six straight.LLLLL

Singer Jan 1930Canzoneri Mar 1930Klaveren Nov 1933Petrole Dec 1933Jannazzo May 19341.6 tracked bouts per year

Common Questions

With the rows behind them

Have Billy Petrole and Stanislaus Loayza ever fought each other?: Yes. Billy Petrole and Stanislaus Loayza have met 2 times and Billy Petrole leads the series 2-0.
Who has the better record, Petrole or Loayza?: Billy Petrole is 122-26-15 and Stanislaus Loayza is 3-10-1 across the 14 bouts Kill The Body has tracked. Billy Petrole has the higher win percentage. Records shown as tracked have not yet been independently verified as complete career totals.
Who has more knockouts, Petrole or Loayza?: Billy Petrole has 65 knockout wins and Stanislaus Loayza has 0. Billy Petrole has more.
Do Petrole and Loayza have any common opponents?: Billy Petrole and Stanislaus Loayza share 6 common opponents: Bep van Klaveren, Tony Canzoneri and Jimmy McLarnin (and 3 others). Neither fighter fared better across the shared opponents overall.
How much fight data does Kill The Body have on Petrole and Loayza?: This comparison is drawn from 164 bouts tracked for Billy Petrole and 14 bouts tracked for Stanislaus Loayza. Method and activity splits reflect those bouts only.

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Billy Petrole vs Stanislaus Loayza — record, stats and common opponents compared

Billy Petrole

Stanislaus Loayza