[3] He was named Player of the Day on the second matchday of the competition[4] after scoring a kick in the final minute of their match against Western Province to secure a 19–17 victory for the team from Mpumalanga.
[9] He was also largely responsible for Western Province winning the competition, scoring 23 points in their 43–32 victory over the Blue Bulls at Kings Park Stadium, Durban.
[13] With first-choice fly-half Peter Grant only recently having returned from playing Top League rugby with Kobelco Steelers, coach Allister Coetzee decided to start Van Aswegen in the Stormers' opening match of the season against the Lions.
[16] He made one more Super Rugby appearance in 2011, starting their return match against the Lions in Johannesburg[17] and scoring an early penalty before suffering a medial knee injury in the 13th minute, which ruled him out of the remainder of the competition.
He faced his first international side in Super Rugby with the visit of the Hurricanes on the opening day and contributed one drop goal in a 39–26 win, with Joe Pietersen having taken over the main kicking duties.
[29] In 2013, Van Aswegen put his injury problems behind him and, after playing three matches in the 2013 Vodacom Cup competition and scoring 27 points, he joined up with the Stormers side once more.
A further four appearances followed during the 2013 Currie Cup Premier Division competition, with Van Aswegen scoring 22 points before another knee injury saw him miss the rest of the season.
[30] At the start of the 2014 Super Rugby season, Van Aswegen found him behind Peter Grant, Demetri Catrakilis and Kurt Coleman in the pecking order at the Stormers.
[32] In June 2014, the Eastern Province Kings announced that Van Aswegen would join them on a one-month trial prior to the 2014 Currie Cup Premier Division competition.