Over the course of his professional career, Blackwood has appeared in 152 NHL games, all with New Jersey, owning a 65-57-18 record, 2.97 GAA, .906 SV% and eight shutouts. He set career highs in wins (22), games played (47), and shutouts (three) during the 2019-20 shortened season. He has also played in 90 AHL contests between Utica, the Binghamton Devils, and Albany Devils, earning a 33-42-11 record with a 2.96 GAA and .896 SV% with six shutouts. In the 2018-19 AHL season, he was named to the AHL All-Star Classic.