On December 11, 2009, a 33-year-old Jan Zaveck (27-1, 15 KOs) got a shot at the IBF welterweight title held by Isaac Hlatshwayo.
Zaveck came in to the fight on a 2-fight win streak with a 53% KO rate, and was fighting after a gap of 5 months and 22 days.
Jan Zaveck made easy work of Isaac Hlatshwayo, stopping the champion via TKO in the 3rd. Zaveck improves his record to 28-1 (16 KOs)
On February 18, 2011, the 34-year-old IBF welterweight world champion, Jan Zaveck (30-1, 17 KOs), faced Paul Delgado, in a title defense fight.
Zaveck came in to the fight on a 5-fight win streak with a 54% KO rate, and was fighting after a gap of 5 months and 14 days.
Jan Zaveck stopped Paul Delgado via KO in the 5th round of the 12-round world-title fight, and successfully defended his IBF welterweight title. Zaveck improves his record to 31-1 (18 KOs)
On September 4, 2010, Jan Zaveck and Rafał Jackiewicz met again in a rematch.
Zaveck came in to the fight on a 4-fight win streak with a 56% KO rate, and was fighting after a gap of 4 months and 26 days.
Jan Zaveck defeated Rafał Jackiewicz via majority decision in the rematch and successfully defended his IBF welterweight title. Zaveck improves his record to 30-1
On April 9, 2010, the 34-year-old IBF welterweight world champion, Jan Zaveck (28-1, 16 KOs), faced Rodolfo Ezequiel Martinez, in a title defense fight.
Zaveck came in to the fight on a 3-fight win streak with a 55% KO rate, and was fighting after a gap of 3 months and 29 days.
Jan Zaveck stopped Rodolfo Ezequiel Martinez via TKO in the final round of the 12-round world-title fight, and successfully defended his IBF welterweight title. Zaveck improves his record to 29-1 (17 KOs)
On October 14, 2014, a 38-year-old Jan Zaveck (33-3, 18 KOs) and Ferenc Hafner met in the ring in a super-welterweight bout.
Zaveck came in to the fight on a 1-fight win streak with a 50% KO rate, and was fighting after a gap of 10 months and 25 days.
Jan Zaveck stopped Ferenc Hafner via TKO in the 7th round. Zaveck improves his record to 34-3 (19 KOs)
On February 2, 2005, a 28-year-old Jan Zaveck (15-0, 8 KOs) and Danilo Alcantara met in the ring.
Zaveck came in to the fight on a 15-fight win streak with a 53% KO rate, and was fighting after a gap of 18 days.
Jan Zaveck stopped Danilo Alcantara via TKO in the 2nd round. Zaveck improves his record to 16-0 (9 KOs)
On July 5, 2003, a 27-year-old Jan Zaveck (5-0, 3 KOs) and Kamel Ikene met in the ring.
Zaveck came in to the fight on a 5-fight win streak with a 60% KO rate, and was fighting after a gap of 21 days.
Jan Zaveck stopped Kamel Ikene via TKO in the 2nd round. Zaveck improves his record to 6-0 (4 KOs)
On July 17, 2004, a 28-year-old Jan Zaveck (12-0, 6 KOs) and Arthur Nowak met in the ring in a welterweight bout.
Zaveck came in to the fight on a 12-fight win streak with a 50% KO rate, and was fighting after a gap of 1 month and 12 days.
Jan Zaveck stopped Arthur Nowak via TKO in the 8th round. Zaveck improves his record to 13-0 (7 KOs)
On March 24, 2012, a 36-year-old Jan Zaveck (31-2, 18 KOs) and Bethuel Ushona met in the ring in a welterweight bout.
Zaveck came in to the fight on a 1-fight losing streak with a 54% KO rate, and was fighting after a gap of 6 months and 21 days.
Jan Zaveck defeated Bethuel Ushona via unanimous decision in the 12-round welterweight fight. Zaveck improves his record to 32-2
On January 19, 2008, a 31-year-old Jan Zaveck (23-0, 13 KOs) and Pietro d'Alessio met in the ring.
Zaveck came in to the fight on a 23-fight win streak with a 56% KO rate, and was fighting after a gap of 3 months and 6 days.
Jan Zaveck stopped Pietro d'Alessio via TKO in the 4th round. Zaveck improves his record to 24-0 (14 KOs)