Dunn for 18 games. After losing their top goal-scorer Vladimir Tarasenko during a game against the Colorado Avalanche, they were mathematically eliminated from the playoffs. He ended the season with 35 points in 82 games and 13 penalty minutes. Parayko began the 2018–19 season on a pairing with Jay Bouwmeester to lead the Blues' shutdown line, but would also play with Marco Scandella once he was acquired from the Montreal Canadiens. While with Bouwmeester, Parayko was 37th in the league for time on ice at 22 minutes 47 seconds, but his time jumped to 25:07 in the postseason. Together, they were often referred to as a "car wash on ice" as they were "tidy car washers against the opponents' top horses." After Pietrangelo suffered a hand injury on November 30, 2018, Parayko was given the responsibility by the coaching staff to replace him on the top defensive pairing. As the team continued to drop in the standings and reach 28th-place, Parayko was often considered prime trade bait as the trade deadline neared. He remained untraded after the deadline and helped lead the Blues to the 2019 Stanley Cup Finals against the Boston Bruins by recording two goals and 10 assists in 26 games during the postseason. With his assistance, the team won the 2019 Stanley Cup for the first time in their 52-year franchise history. Following their championship year, Parayko returned to the Blues for the 2019–20 season. On January 14, 2020, Parayko was placed on long-term injured reserve after suffering an upper-body injury a few days earlier. At the time of his injury, Parayko had recorded 13 points and eight penalty minutes over 42 games. He was activated off injured reserve on January 27, 2020, after missing seven games. Upon returning to the lineup, Parayko began to be paired with Scandella on a more regular basis and they recorded six points over their first three games together. By the time the league suspended play due to the COVID-19 pandemic, Parayko recorded 28 points in 64 games. When the Blues returned to play in July, Parayko missed the first day of training camp and was presumed to have contracted COVID-19. The team ended up with the 4th seed in the West after going winless in the round-robin portion of the Stanley Cup Qualifiers, they lost to the Vancouver Canucks during Round 1. Parayko suffered another upper-body injury after playing the