Lightweight · Canada
William Irwin 42-6-0 30 KO · 1993–2005
Photo: Philcheevers, CC BY-SA 4.0 via Wikimedia Commons
William Irwin was a lightweight boxer from Canada, born May 20, 1968. Record 42-6-0 with 30 knockouts over 1993–2005. William Irwin last fought Juan Díaz on Jan 21, 2005 and lost by TKO in round 9 of 12.
Also: وليام إيروين · وليام ايروين
Born May 20, 1968
Country 🇨🇦 Canada
Debut Feb 11, 1993
Career 1993–2005
Rounds boxed 291
KO share 71%
Born in Niagara Falls, Ontario, Canada
Titles Canadian lightweight title 2002
Boxerbook rating 1695 ± 217 · inactive since Jan 2005Why here › Confirmed bouts 2 of 48 · 1 official
Career record Record
42-6-0, 30 KOs · 1993–2005
Last result L
For WBA lightweight title TKO 9/12 · Reliant Center, Houston, 🇺🇸
The record 48 bouts, 1993–2005, newest first. Records under each bout are both boxers going in.
Bouts by source: English Wikipedia · 48, WBA Fights Master Scores · 1
L
For WBA lightweight title TKO 9/12 · Reliant Center, Houston, 🇺🇸
Irwin 42-5-0 · Díaz 26-0-0
W
Lou Bizzarro
TKO 9/10 · Avalon Hotel, Erie, Pennsylvania, 🇺🇸
Irwin 41-5-0 · Bizzarro —
W
Mark Riggs
KO 1/10 · CanWest Global Park, Winnipeg, 🇨🇦
Irwin 40-5-0 · Riggs —
W
Luis Gustavo Sosa
TKO 4/10 · Hamilton Place Theatre, Hamilton, 🇨🇦
Irwin 39-5-0 · Sosa —
W
Richard Howard
TKO 2/10 · Sawridge Hotel, Slave Lake, 🇨🇦
Irwin 38-5-0 · Howard —
W
Vincent Howard
TKO 9/10 · Hershey Centre, Mississauga, 🇨🇦
Irwin 37-5-0 · Howard —
W
Mario Lechowski
Won Canadian lightweight title TKO 7/12 · Ed Lumley Arena, Cornwall, 🇨🇦
Irwin 36-5-0 · Lechowski —
W
Chad Brisson
MD 10/10 · Royal York Hotel, Toronto, 🇨🇦
Irwin 35-5-0 · Brisson —
W
Teddy Worth
UD 6/6 · Ramada Marlborough Hotel, Winnipeg, 🇨🇦
Irwin 34-5-0 · Worth —
L
Dorin Spivey
UD 10/10 · The Blue Horizon, Philadelphia, 🇺🇸
Irwin 34-4-0 · Spivey —
L
For IBF lightweight title UD 12/12 · Lawrence Convention Center, Pittsburgh, 🇺🇸
Irwin 34-3-0 · Spadafora 31-0-0
W
Moisés Pedroza
TKO 1/10 · Casino Rama, Rama, 🇨🇦
Irwin 33-3-0 · Pedroza —
W
Miguel Arrozal
TKO 6/10 · The Blue Horizon, Philadelphia, 🇺🇸
Irwin 32-3-0 · Arrozal —
W
Rubén Darío Oliva
KO 2/10 · Saskatoon, Saskatchewan, 🇨🇦
Irwin 31-3-0 · Oliva —
W
John Bailey
TKO 7/10 · The Blue Horizon, Philadelphia, 🇺🇸
Irwin 30-3-0 · Bailey —
W
José Vida Ramos
TKO 4/8 · The Blue Horizon, Philadelphia, 🇺🇸
Irwin 29-3-0 · Ramos —
W
Damion Stutton
TKO 3/8 · Slave Lake, Alberta, 🇨🇦
Irwin 28-3-0 · Stutton —
W
Shawn Simmons
TKO 2/10 · Casino Windsor, Windsor, 🇨🇦
Irwin 27-3-0 · Simmons —
W
John Lark
KO 2/10 · The Blue Horizon, Philadelphia, 🇺🇸
Irwin 26-3-0 · Lark —
W
David Armstrong
TKO 2/10 · The Blue Horizon, Philadelphia, 🇺🇸
Irwin 25-3-0 · Armstrong —
Show all 48 bouts W
Charles Tschorniawsky
TKO 8/10 · The Blue Horizon, Philadelphia, 🇺🇸
Irwin 24-3-0 · Tschorniawsky —
L
Gerald Gray
SD 8/8 · The Blue Horizon, Philadelphia, 🇺🇸
Irwin 24-2-0 · Gray —
L
UD 10/10 · Corel Centre, Kanata, 🇨🇦
Irwin 24-1-0 · Santos —
W
Andy Wong
UD 10/10 · Royal York Hotel, Toronto, 🇨🇦
Irwin 23-1-0 · Wong —
W
José Manjarrez
UD 10/10 · Convention Centre, Edmonton, 🇨🇦
Irwin 22-1-0 · Manjarrez —
W
Andre Cray
SD 10/10 · Grand Casino, Biloxi, Mississippi, 🇺🇸
Irwin 21-1-0 · Cray —
L
Lost Commonwealth lightweight title UD 12/12 · Airport Hilton Hotel, Toronto, 🇨🇦
Irwin 21-0-0 · Tetteh 15-2-0
W
Won Commonwealth lightweight title MD 12/12 · International Plaza Hotel, Toronto, 🇨🇦
Irwin 20-0-0 · Tetteh 15-0-0
W
KO 3/10 · International Plaza Hotel, Toronto, 🇨🇦
Irwin 19-0-0 · Sarmiento —
W
Manuel Alberto Billalba
KO 8/10 · Buenos Aires, Distrito Federal, 🇦🇷
Irwin 18-0-0 · Billalba —
W
Juan Luis Sánchez
UD 10/10 · International Plaza Hotel, Toronto, 🇨🇦
Irwin 17-0-0 · Sánchez —
W
Jesús Rodríguez
Won WBC Continental Americas lightweight title MD 12/12 · Westin Harbour Castle Hotel, Toronto, 🇨🇦
Irwin 16-0-0 · Rodríguez —
W
Amado Cabato
Won vacant IBO lightweight title UD 12/12 · Metro Convention Centre, Toronto, 🇨🇦
Irwin 15-0-0 · Cabato —
W
Rodney Wilson
KO 6/10 · Convention Centre, Edmonton, 🇨🇦
Irwin 14-0-0 · Wilson —
W
Bobby Johnson
KO 1/10 · Palais des Sports Jonquière, Saguenay, 🇨🇦
Irwin 13-0-0 · Johnson —
W
Alex Pérez
KO 1/10 · Curzon Health Club, Toronto, 🇨🇦
Irwin 12-0-0 · Pérez —
W
Stan Cunningham
TKO 4/10 · Convention Centre, Edmonton, 🇨🇦
Irwin 11-0-0 · Cunningham —
W
Steve Thomas
KO 1/10 · Curzon Health Club, Toronto, 🇨🇦
Irwin 10-0-0 · Thomas —
W
Larry O'Shields
TKO 6 · The Blue Horizon, Philadelphia, 🇺🇸
Irwin 9-0-0 · O'Shields —
W
Manuel Santiago
UD 8/8 · MacDonald Field, Malden, Massachusetts, 🇺🇸
Irwin 8-0-0 · Santiago —
W
Nedrick Simmons
Won CPBC lightweight title TKO 8/12 · Memorial Arena, Niagara Falls, 🇨🇦
Irwin 7-0-0 · Simmons —
W
Charles Beals
KO 2/10 · Royal York Hotel, Toronto, 🇨🇦
Irwin 6-0-0 · Beals —
W
Dezi Ford
UD 6/6 · Curzon Health Club, Toronto, 🇨🇦
Irwin 5-0-0 · Ford —
W
Brent Mitchell
TKO 2/6 · Grant MacEwan College, Edmonton, 🇨🇦
Irwin 4-0-0 · Mitchell —
W
Ben Simmons
TKO 5/6 · AJ Palumbo Center, Pittsburgh, 🇺🇸
Irwin 3-0-0 · Simmons —
W
Clifford Hicks
UD 6/6 · Royal York Hotel, Toronto, 🇨🇦
Irwin 2-0-0 · Hicks —
W
John Gottschling
KO 1/6 · Sheraton Centre, Toronto, 🇨🇦
Irwin 1-0-0 · Gottschling —
W
Charles McClellan
TKO 1/6 · Niagara Falls Arena, Niagara Falls, 🇨🇦
Irwin 0-0-0 · McClellan —
Amateur career Round of 16 W Charles Ojuang 🇰🇪4:1
4 amateur bouts at major tournaments, from the tournament articles on English Wikipedia (CC BY-SA). Not part of the professional record.
Ratings now Not in any current ranking.
World titles No world title reigns recorded.
Facts
What is William Irwin's record? William Irwin's professional record is 42-6-0 with 30 knockouts.
Who did William Irwin fight last? William Irwin last fought Juan Díaz on Jan 21, 2005 and lost by TKO in round 9 of 12. Sources Boxerbook ID 18432 · permanent link boxerbook.com/id/18432 . Wikidata (CC0), English Wikipedia (CC BY-SA), photo from Wikimedia Commons. Last fetched: 2026-10-12. Spot a mistake? Every bout page has a link to report it.
