Career
Before playing in the NHL, Kuemper played one playoff game with the Spokane Chiefs and three seasons with the Red Deer Rebels of the Western Hockey League (WHL). He had a successful time with his teams. He finished the 2010–11 season with a 1.86 goals against average and a .933 save percentage. He won the Del Wilson Trophy for being the WHL's best goaltender, Four Broncos Memorial Trophy for WHL player of the year, and was named the CHL Goaltender of the Year. He was also named to the WHL East First All-Star Team.
He was drafted 161st overall by the Minnesota Wild in the 2009 NHL entry draft. On May 26, 2011, Kuemper signed a three-year, $2.330 million entry-level contract to join the Wild. He was sent down to play for their AHL and ECHL-affiliates Houston Aeros, Ontario Reign, and Orlando Solar Bears.
On January 14, 2016, the Wild called him up and Kuemper made his NHL debut, stopping 28 of 30 shots in a 2–1 loss against the Vancouver Canucks. On February 17, he stopped 29 of 31 shots for his first NHL career victory in a 3–2 win against the Detroit Red Wings. On January 12, 2014, Kuemper stopped all 23 shots he faced to earn his first NHL career shutout in a 4–0 win against the Nashville Predators. On October 13, 2014, the league named Kuemper as their Second Star of the Week. On July 5, 2016, Kuemper signed a one-year, $1.55 million contract to stay with the Wild.
On July 1, 2017, Kuemper signed a one-year, $650,000 contract to join the Los Angeles Kings. He played 19 regular season games with the Kings, posting a 10–1–3 record.
On February 21, 2018, the Kings traded Kuemper to the Arizona Coyotes in exchange for Tobias Rieder and Scott Wedgewood. On the same day, he signed a two-year, $3.7 million contract to stay with the Coyotes. He played parts of four seasons with the Coyotes.
On July 28, 2021, the Coyotes traded Kuemper to the Colorado Avalanche in exchange for Conor Timmins, a 2022 first-round draft pick, and a 2024 conditional third-round draft pick. He helped the Avalanche when they went on a run in the playoffs. They defeated the Nashville Predators, St. Louis Blues, and Edmonton Oilers. They went on to defeat the Tampa Bay Lightning four games to two in the Final to win the Stanley Cup.
On July 13, 2022, Kuemper signed a five-year, $26.25 million contract to join the Washington Capitals. He played parts of two seasons with the Capitals.
On June 19, 2024, the Capitals traded Kuemper back to the Los Angeles Kings in exchange for Pierre-Luc Dubois.
Canada