His athletics career started in 1996 at school, where he also played rugby union. The rugby coach forced all players to take part in athletics as well. Cilliers chose 200m and 300m hurdles, and hurdling quickly became his primary interest.
His current coach is Dr. Ria van den Berg.
|Representing South Africa|
|2000||World Junior Championships||Santiago, Chile||3rd||400m hurdles||50.58|
|2003||World Championships||Paris, France||17th (sf)||400 m hurdles||49.32|
|10th (h)||4x400 m relay||3:03.05|
|2004||African Championships||Brazzaville, Republic of the Congo||3rd||400m hurdles||49.58|
|Olympic Games||Athens, Greece||16th (sf)||400 m hurdles||49.01|
|–||4x400 m relay||DNF|
|2005||World Championships||Helsinki, Finland||13th (h)||4x400 m relay||3:04.64|
|2007||Universiade||Bangkok, Thailand||4th||400 m hurdles||49.36|
|4th||4x400 m relay||3:06.44|
|2008||African Championships||Addis Ababa, Ethiopia||4th||400m hurdles||49.93|
|1st||4x400 m relay||3:03.58|
|This biographical article relating to South African athletics is a stub. You can help Wikipedia by expanding it.|