However, that turned out to be his only involvement in the competition, as he once again linked up with the South Africa Under-20 team, being named as captain for the team due to compete in the 2010 IRB Junior World Championship. For the second Junior World Championship in a row, Stander scored a try in South Africa's opening match, as they secured 40–14 win over Tonga in their first match. He captained them to a 73–0 victory over Scotland, before being involved in South Africa's first ever defeat in a pool match at the Junior World Championships, as they lost 35–42 to Australia. Despite the result, South Africa qualified for the semi-finals as the best pool runner-up, but lost again at that stage against eventual champions New Zealand. Stander started his fifth match of the competition in his side's 27–22 victory over England in the third-place play-off to emulate their 2009 finish.