2 Oct 2004
Jeff Lacy beats Syd Vanderpool via knockout 8/12
Super Middleweight (168 lb)
Jeff Lacy becomes the IBF Super Middleweight world champion
4 Dec 2004
Jeff Lacy beats Omar Sheika via unanimous decision 12/12
5 Mar 2005
Jeff Lacy beats Rubin Williams via knockout 7/12
6 Aug 2005
Jeff Lacy beats Robin Reid via corner retirement 7/12
5 Nov 2005
Jeff Lacy beats Scott Pemberton via knockout 2/12
4 Mar 2006
Joe Calzaghe beats Jeff Lacy via unanimous decision 12/12