Atomweight (also referred to as light minimumweight, junior strawweight, junior mini-flyweight and pinweight) is a weight classincombat sports.
Inwomen's boxing and junior amateur boxing pinweight is, or has been, a weight class for boxers weighing in under 102 pounds (46 kg) (before 2003, 45 kg).
In September 2010 the women's class in amateur boxing was partly merged into an extended 45–48 kglight flyweight division, with women weighing less than 45 kg excluded from competition. Pinweight is still defined for junior contests.
Current Champions (Last updated on January 25, 2024)
| Sanctioning Body | Reign Began | Champion | Record | Defenses |
|---|---|---|---|---|
| WBA | January 12, 2024 | Eri Matsuda | 7–1–1 (1 KO) | 0 |
| WBC | January 13, 2024 | Tina Rupprecht | 13–1–1 (3 KO) | 0 |
| IBF | January 12, 2024 | Sumire Yamanaka | 8–0 (3 KO) | 0 |
| WBO | January 12, 2024 | Eri Matsuda | 7–1–1 (1 KO) | 0 |
| year | World | European |
|---|---|---|
| 2001 |  Elena Sabitova |
 Oria Mahmoud
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| 2002 |  Mary Kom |
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| 2003 |  Camelia Negrea
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| 2004 | Elena Sabitova
| |
| 2005 | Mary Kom |
Elena Sabitova
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| 2006 | Mary Kom |
Steluta Duta
|
| 2007 | Steluta Duta
| |
| 2008 | Mary Kom |
|
| 2009 | Svetlana Gnevanova
|
The atomweight division in mixed martial arts generally refers to competitors weighing less than 105 lb.
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|---|---|
| Professional boxing |
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| Amateur/Olympic boxing |
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| Other/unofficial |
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