[2] He is a member of the Pro Uplace Triathlon Team, coached by Bart Decru.

At age 17, Zeebroek advised his coach and his personal doctor to begin with triathlon.

During his career, Zeebroek took part in 65 ITU and ETU competitions, and achieved eight Top 10 positions.

He qualified for the 2008 Summer Olympics in Beijing, along with his teammate Peter Croes, after finishing eighth at the European Triathlon Championships in Lisbon.

Zeebroek placed thirteenth in the men's triathlon at the time of 1:50:30.90, a few minutes behind Germany's Jan Frodeno, who won the event.