Atomweight
Weight class in combat sports
title: "Atomweight" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["boxing-weight-classes", "women's-boxing"] description: "Weight class in combat sports" topic_path: "general/boxing-weight-classes" source: "https://en.wikipedia.org/wiki/Atomweight" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0
::summary Weight class in combat sports ::
Atomweight (also referred to as light minimumweight, junior strawweight, junior mini-flyweight and pinweight) is a weight class in combat sports.
Boxing
In women's boxing and junior amateur boxing pinweight is, or has been, a weight class for boxers weighing in under 102 lb (before 2003, 45 kg).
In September 2010 the women's class in amateur boxing was partly merged into an extended 45–48 kg light flyweight division, with women weighing less than 45 kg excluded from competition. Pinweight is still defined for junior contests.
Women's professional champions
Main article: List of world atomweight boxing champions
Current Champions (Last updated on December 22, 2025) ::data[format=table]
| Sanctioning Body | Reign Began | Champion | Record | Defenses |
|---|---|---|---|---|
| WBA | November 21, 2025 | Isabel Rivero | 12–3–1 (1 KO) | 0 |
| WBC | October 25, 2025 | Camila Zamorano | 13–0 (1 KO) | 1 |
| IBF | ||||
| WBO | ||||
| :: |
Current ''The Ring'' world rankings
As of December 22, 2025.
Keys: : Current The Ring world champion
::data[format=table]
| Rank | Name | Record | Title(s) |
|---|---|---|---|
| C | |||
| 1 | Sumire Yamanaka | 9–1 (3 KO) | |
| 2 | Camila Zamorano | 13–0 (1 KO) | WBC |
| 3 | Eri Matsuda | 8–2–1 (1 KO) | |
| 4 | Esneidy Rodriguez Olmos | 11–0–1 (1 KO) | |
| 5 | Nao Ugawa | 6–0 (0 KO) | |
| :: |
Women's Amateur Champions
::data[format=table]
| year | World | European |
|---|---|---|
| 2001 | Russia Elena Sabitova | FRA Oria Mahmoud |
| 2002 | India Mary Kom | |
| 2003 | ROM Camelia Negrea | |
| 2004 | RUS Elena Sabitova | |
| 2005 | India Mary Kom | RUS Elena Sabitova |
| 2006 | India Mary Kom | ROM Steluta Duta |
| 2007 | ROM Steluta Duta | |
| 2008 | India Mary Kom | |
| 2009 | RUS Svetlana Gnevanova | |
| :: |
Mixed Martial Arts
Main article: Atomweight (MMA)
The atomweight division in mixed martial arts generally refers to competitors weighing less than 105 lb.
References
References
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