
Cruiserweight · Retired · South Africa
Sebastian Rothman
At a glance
- Born
- August 13, 1974 (age 52)
- Nationality
- South Africa
- Birthplace
- Tel Aviv, Israel
- Division
- Cruiserweight
- Stance
- Orthodox
- Pro debut
- February 12, 1997
- Retired
- May 30, 2008
Story
Boxing Only · Updated Jul 8, 2026
Sebastiaan Rothmann, a South African cruiserweight boxer with Israeli roots, carved out a respectable career spanning over a decade in the sport. Born on August 13, 1974, in Tel Aviv, Israel, Rothmann later made his home in Pretoria, South Africa, where he honed his skills as an orthodox fighter. His professional journey began on February 12, 1997, in Johannesburg, with a four-round points loss to Melusi Khoza, a humble start that belied the success to come.
Rothmann's career, which lasted from 1997 to 2008, saw him compete in 174 rounds of professional boxing, accumulating an impressive knockout percentage of 66.67%. The South African's rise to prominence began in earnest on May 16, 1999, when he captured the vacant South African Cruiserweight title with a 10th-round TKO victory over Earl Morais. This domestic success was a springboard to international recognition, and just four months later, on September 24, 1999, Rothmann travelled to Wales to challenge for his first world title. There, he stopped Rob Norton in the 8th round to claim the WBU World Cruiserweight championship, a title he would defend with distinction.
Rothmann's reign as WBU champion was impressive, featuring six successful defences. He showcased his skills at home in Carnival City, Brakpan, with victories over Damon Reed, Kelly Oliver, and Adam Watt. His willingness to travel saw him successfully defend his title in England against Mark Hobson in Liverpool and Crawford Ashley in Dagenham, Essex, before returning home to outpoint Mark Delaney. Rothmann's ambitions remained high after vacating the WBU title in September 2002. He captured the IBO World Cruiserweight title with a 5th-round TKO over Anthony Bigeni and defended it once against Jorge Castro, both fights taking place at his favoured Carnival City venue.
However, the pinnacle of Rothmann's career was also its turning point. On February 6, 2004, he faced the battle-hardened Carl Thompson at Ponds Forge Arena in Sheffield, England. This bout was an absolute epic. Thompson emerged victorious via a 9th-round TKO in a contest that showcased Rothmann's grit and determination against one of the toughest fighters in the division. Despite the loss, this fight cemented Rothmann's reputation as a world-class cruiserweight. His career would continue for four more years, culminating in his final bout on May 30, 2008, where he suffered a 5th-round TKO loss to Sean Santana in Boksburg, bringing an end to a career that, while not reaching the very top echelons of the sport, certainly left its mark on the cruiserweight division.