Jacobs won a stage in 2000 in the three-day cyclocross-race Tour du Val d'Orge and finished second in the final standings. In 2001 he was then third in the National Championships cyclocross in the promises. And won in 2001 Gaverepromising game. In 2002 he became the national champion at the promises in the field. In 2003 he made his debut at the Spaarselect formation, but drove shortly thereafter by an elite without contract. He won that year in Ardooie , was national champion in elite without contract and was third in the GP Axa Luxembourg, Erpe-Mere and Rijkevorsel . In 2004 he was awarded a professional contract with Spaarselect was 1 September 2004 that Fidea Cycling Team . In two courses, he finished third that year the GP Eric De Vlaeminck (in Zolder ) and Erpe-Mere. In 2005 he was again third in the Grand Prix Eric De Vlaeminck but in Neerpelt and third in the Superprestige cyclocross from youngster .
In 2006, at the start of the cyclocross season, he had to leave the team because of the lack of performance. He then drove to the elites without a contract, in the formation Van Der Vorst Cycling Team. In the season 2008/2009 he drives to the Granville-Morgan Blue Cycling Team, a mountain formation.
- 2000 Stage 1 Tour du Val d'Orge
- 2001 Gavere (promises)
- 2002 National Championships promise
- 2003 Ardooie
- 2003 National Championships (elite without contract)