DTH van der Merwe was born in South Africa before moving to Canada with his family in 2003.
It was in Canada where his rugby journey really accelerated. The outside back was picked in the Saskatchewan U18 and U21 representative teams as well as playing for the Prairie Fire in the Canada Super League. After moving to Victoria, British Columbia, van der Merwe played with the James Bay Athletic Association and went on to win three consecutive provincial championships and the national championship in 2007.
van der Merwe signed a short-term deal with English side Saracens after the 2007 Rugby World Cup but an injury ended that opportunity prematurely. The Canadian had another opportunity in the UK with Glasgow, inking a two-year deal in 2009. It was the next season, 2010-2011, when van der Merwe established himself as a Pro12 regular with the Warriors featuring in 19 matches. van der Merwe played with the Warriors through to 2015 before moving to Welsh side Scarlets, where he played for three seasons. van der Merwe moved to English club Newcastle ahead of the 2017-18 season but he only spent a short time with the Falcons before returning to Glasgow.
van der Merwe made his Test debut for Canada in 2006 and featured in their 2007 Rugby World Cup campaign, the first of four of those campaigns, most recently playing in the 2019 Rugby World Cup.
van der Merwe brought all the expertise and experience from his 61 Tests for Canada to the wing for the Giltinis.
He was ever-dangerous as a runner who defenders found hard to contain. He grabbed 11 tries and will be a big plus again in 2022.