Boxing
MARY
SPENCER
2002–present
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Mary Spencer

Three-time world champion from the Cape Croker First Nation

Tale of the tape
Born
December 12, 1984, Wiarton, Ontario, Canada
Nationality
Canada
Height
180 cm (5′11″)
Stance
Orthodox
Style
Tall, fast-handed boxer
Weight
66 kg, 75 kg, Light middleweight
Active
2002–present
Status
Active · age 41

The record

10
Wins
4
Losses
0
Draws
6
Wins by KO/TKO
Won by KO/TKO 6Other wins 4Losses 414 fights, 71% won, 60% of wins by finish

Professional, since 2021 (last fight May 2026); her world titles came as an amateur record

Olympic Games
World Championships

3 world amateur titles (2005, 2008, 2010), 2011 Pan American Games gold

The story

Mary Spencer, an Ojibwe from the Cape Croker First Nation, was born in Wiarton, Ontario, and did not start boxing until she was 17, at the Windsor Amateur Boxing Club under coach Charlie Stewart. Three years later she was world champion at 66 kg, and she won the title again in 2008. When the Olympics added women's boxing with only three weight classes, she moved up to 75 kg, won a third world title in 2010 and took the first women's boxing gold at the Pan American Games in 2011. A favourite for London 2012, she lost a 17-14 quarter-final to China's Li Jinzi, whom she had beaten for the 2010 world title. She turned pro in 2021 and held the WBA super welterweight belt from 2024 to 2025.

Signature weapons
Long straight punchesHeight and reachHand speed
Titles
  • World amateur champion, 66 kg (2005, 2008)
  • World amateur champion, 75 kg (2010)
  • Pan American Games champion, 75 kg (2011)
  • WBA female super welterweight champion (2024–2025)
Honours
  • Canadian Boxer of the Year (4 times by 2008)
  • Indspire Award, sport (2014)
  • Randy Starkman Award, Canadian Olympic Committee (2019)

Defining fights

  1. 2010WIN
    vs Li Jinzi (World Championship final, Barbados, 75 kg)
  2. 2011WIN
    vs Yenebier Guillen (Pan American Games final, Guadalajara)
  3. 2012LOSS
    vs Li Jinzi (London Olympic quarter-final, 17-14)
  4. 2024WIN
    vs Naomi Mannes (UD 10, won interim WBA super welterweight title)
  5. 2025LOSS
    vs Mikaela Mayer (UD 10, lost WBA title)
Steal this

Use your height the way Spencer's coach wanted at the 2012 Olympics: long, straight punches that keep a shorter pressure fighter at the end of your reach. When a smaller opponent starts walking you down, jab and step off at an angle instead of standing and trading.

More Boxing legends

Facts checked September 2026 against en.wikipedia.org, olympedia.org, olympic.ca, thecanadianencyclopedia.ca, cbc.ca and theglobeandmail.com. The Hall of Fame is editorial; it doesn't imply Mary Spencer endorses Satori Fight Club.