Youth Zeilinga represented the at Under-13, Under-16, Under-18, Under-19 and Under-21 levels between 2005 and 2012.
Sharks In 2011, he made his first class debut for them in the
Vodacom Cup competition in the season-opening game against the . He missed a conversion two minutes after coming on, but did convert one ten minutes later to help his team to a 30–19 victory. He made three more substitute appearances during 2011 and was promoted to first choice fly-half for the Sharks during the
2012 Vodacom Cup competition, making a further seven starts. He also finished as top scorer in the
2012 Under-21 Provincial Championship, scoring 154 points in his ten appearances. He also took over the kicking duties during the
2013 Vodacom Cup competition, where he once again scored in excess of 100 points in the season.
Sharks He was included in the squad for their final match of the
2013 Super Rugby season against the . He did appear as a substitute to make his
Super Rugby debut and also scored a try in a 58–13 victory.
Cheetahs In May 2015, Zeilinga signed a contract to join
Bloemfontein-based outfit the . ==References==