Career
He made his Super Rugby debut on June 2, 2012 for the Lions against the Sharks in Johannesburg. Volmink started the game before being replaced by Ruan Combrinck in the 61st minute of a 38-28 Lions victory. On 27 April 2013, he broke the South African tries-per-game record when he scored nine tries in the Golden Lions 161–3 victory over the hapless Limpopo Blue Bulls in the 2013 Vodacom Cup.
He formerly represented United World Colleges in the Varsity Shield.