During her first season, she was forced by the NCAA to sit out four games for having played on a team in Netherlands which had professional players prior to her arrival to CSU.
[citation needed] In 2012, van Grinsven became eligible to play for Saint Joseph's University and marked the 2012-2013 season as a distinguished year for her and the team (15ppg and 10.5rpg).
[citation needed] Source[6] After going undrafted in the 2013 WNBA draft, van Grinsven signed a training camp contract with the Connecticut Sun.
[7] In the winter of 2013, she signed her first European professional contract with the reigning French Ligue Féminine champions Bourges Basket where she won the Coupe de France and reached the Final Four of the FIBA EuroLeague.
[citation needed] In 2018, van Grinsven signed with Uni Ferrol of the Spanish Liga Femenina de Baloncesto where she was a prominent player for the team in scoring and rebounding.