> Belize - 400 metres - men - national record progression

47.62 - 8. Jonathan Williams - 20/05/2007 - Carson/CA-USA

> Belize - 400 metres - men - national indoor record progression

50.35 - 2. Brandon Jones - 10/12/2010 - Princess Anne/MD-USA - /F5

> Belize - 400 metres hurdles - men - national record progression

48.88 - 2. Jonathan Williams - 14/07/2007 - San Salvador/ESA - 01.NACAC
49.61 - 1. Jonathan Williams - 28/04/2007 - Irvine/CA-USA