On March 24, 2014, van Riemsdyk agreed to terms with the Chicago Blackhawks on a two-year, entry-level deal.[3] He made his NHL debut on October 9, 2014, against the Dallas Stars.[4]
On November 9, 2014, van Riemsdyk earned his first NHL point with an assist in a 5–2 victory over the San Jose Sharks.[5] On February 25, 2015, van Riemsdyk was moved from the Blackhawks to their American Hockey League (AHL) affiliate, the Rockford IceHogs, after recovering from a fractured patella suffered on November 19.[6] Shortly after recovering, van Riemsdyk injured his wrist in April 2015 while playing for Rockford.[7] He underwent successful surgery but missed two months whilst rehabilitating. Van Riemsdyk was recalled by the Blackhawks on May 22.[8] He made his playoff debut on June 8 in game three of the 2015 Stanley Cup Finals. Van Riemsdyk won his first Stanley Cup in his rookie season, as the Blackhawks defeated the Tampa Bay Lightning in six games.[9]
On July 7, 2015, van Riemsdyk signed a two-year contract extension to remain with the Blackhawks.[10] In the 2015–16 season, on October 10, 2015, van Riemsdyk scored his first NHL career goal against Jean-François Bérubé of the New York Islanders.[11]
On April 23, 2016, van Riemsdyk scored his first NHL career playoff goal in Game 6 in the first round of the 2016 playoffs against the St. Louis Blues.[12]
After three seasons with the Hurricanes, van Riemsdyk left as a free agent to sign a one-year, $800,000 contract with the Washington Capitals on October 11, 2020.[16] In his first season in Washington in 2020–21, van Riemsdyk was limited to 20 regular season games, posting 3 points. On March 21, 2021, van Riemsdyk signed a two-year, $1.9 million extension with the Capitals.
In the 2022–23 season while in the midst of recording new career highs offensively for the second consecutive season, van Riemsdyk was re-signed to a three-year, $9 million contract extension on March 11, 2023.[17]
Personal life
He is the younger brother of James van Riemsdyk who plays in the NHL for the Boston Bruins.[18] A third brother, Brendan van Riemsdyk, played hockey at New Hampshire before transferring to Northeastern.[19][20][21] The boys were born to Frans and Allison van Riemsdyk. Frans was born in the Netherlands and raised in New Jersey.[22]