Kok established himself as a regular for South Africa during the 2013–14 IRB Sevens World Series, including their wins at the 2013 South Africa Sevens and the 2014 USA Sevens. He was also included in their squad that played at the 2014 Commonwealth Games in Glasgow, helping his side all the way to the final, where they got a 17–12 victory over a New Zealand that won the previous four tournaments.
