Light flyweight / International Boxing Federation
IBF Junior flyweight
Thanongsak Simsri is the current IBF light flyweight champion, since Jun 19, 2025.
31 reigns, most recent first.
2025-06-19 – present
2024-10-12 – 2025-04-10
2024-02-16 – 2024-10-12
2023-11-04 – 2024-02-16
2022-09-03 – 2023-11-04
2018-10-29 – 2022-03-21
2018-05-20 – 2018-07-25
2017-12-31 – 2018-05-20
2017-05-21 – 2017-12-31
2015-12-29 – 2017-05-21
2014-09-20 – 2015-12-29
2012-07-20 – 2014-05-02
2011-04-30 – 2012-07-20
2010-05-29 – 2011-04-30
2010-01-23 – 2010-05-29
2009-04-19 – 2010-01-23
2006-01-07 – 2009-04-19
2005-05-14 – 2006-01-07
2003-02-15 – 2005-05-14
1999-10-02 – 2002-11-27
1998-12-18 – 1999-10-02
1997-12-13 – 1998-08-28
1997-01-18 – 1997-05-09
1996-03-16 – 1997-01-18
1995-07-15 – 1995-11-17
1994-02-19 – 1995-07-15
1990-07-29 – 1994-02-19
1989-05-02 – 1990-07-29
1988-11-04 – 1989-05-02
1986-12-07 – 1988-11-04
1983-12-10 – 1986-07-18
Facts
- Who is the current IBF light flyweight champion?
- Thanongsak Simsri, champion since Jun 19, 2025.
- Who held the IBF light flyweight title the longest?
- Ulises Solís: 1,645 days in total across 2 reigns, first won Jan 7, 2006.