Kurz won his first provincial junior title in 2014 as third for the Braden Calvert rink. The team, also including front end Lucas Van Den Bosch and Brendan Wilson represented Manitoba at the 2014 Canadian Junior Curling Championships. There, the team lost just one game, en route to their first national junior title.[3] In the final, they defeated New Brunswick's Rene Comeau to earn the right to represent Canada at the 2014 World Junior Curling Championships.[4] At the Worlds, they had less success, finishing the round robin with a 6–3 record.[5] This put the team into the playoffs, but they lost to Switzerland in the 3 vs. 4 game, and then lost to Norway in the bronze medal game, settling for fourth place.[6]
The team won their second-straight provincial junior crown in 2015 and represented Manitoba again at 2015 Canadian Junior Curling Championships. Again, the team lost just one game in the round robin, and again won the national title.[7] This time they had to beat Saskatchewan's Jacob Hersikorn rink to earn the right to represent Canada at the 2015 World Junior Curling Championships.[8] They would fare much better at the 2015 World Juniors, losing just one game in the round robin. In the playoffs, they beat Switzerland's Yannick Schwaller twice to claim the gold medal.[9]
Team Calvert played in their first men's provincial championship in 2015 at the 2015 Safeway Championship. Despite just being a junior team, the rink posted a 5-1 record in the knockout tournament, making it to the championship round, where they lost to former World Champion Jeff Stoughton in the 3 vs. 4 game.[10] During the 2015–16 season, Team Calvert had two playoff appearances on the tour. They reached the final of the North Autocorp Thanksgiving Charity Open and the quarterfinals of the Mother Club Fall Curling Classic. The team also competed in the Manitoba Junior provincials where they looked to defend their title for a third straight year but lost in the page playoffs to Derek Oryniak.[11] The next season, the team won their first tour event at the Man Curl Tour Classic.[12] They also reached the finals of the MCT Championships and the Ken Kurbis Galaxy Bonspiel. At the 2017 Viterra Championship, the team missed the playoffs with a 1–2 record.
During the abbreviated 2020–21 season, Team Calvert played in two events, reaching the semifinals in the Atkins Curling Supplies Classic and missing the playoffs in the MCT Cargill Curling Training Centre Fall Classic.[20] Due to the COVID-19 pandemic in Manitoba, the 2021 provincial championship was cancelled. As the reigning provincials champions, Team Jason Gunnlaugson was chosen to represent Manitoba at the 2021 Tim Hortons Brier.[21] However, due to many provinces cancelling their provincial championships due to the COVID-19 pandemic in Canada, Curling Canada added three Wild Card teams to the national championship, which were based on the CTRS standings from the 2019–20 season.[22] Team Calvert ranked three places to low in the rankings to qualify for the event, ranking just below Glenn Howard, Tanner Horgan and Scott McDonald.[23] The team began the following season with two finals appearances at the Mother Club Fall Curling Classic and the Atkins Curling Supplies Classic, winning the latter.[24] The team also had enough points to qualify for the 2021 Canadian Olympic Curling Pre-Trials for a chance to qualify for the 2021 Canadian Olympic Curling Trials.[25] At the Pre-Trials, they finished with a 2–4 record, missing the playoffs.[26] Due to their early success, Team Calvert qualified for the 2021 National Grand Slam event, where they finished with a 1–3 record. At the 2022 Viterra Championship, the team qualified through the A event with two straight victories, and then won their first championship round game to reach the 1 vs. 2 page qualifier. They then lost two straight games to Mike McEwen and Ryan Wiebe, not qualifying for the playoffs.[27] They wrapped up their season at the 2022 Best of the West where they lost in a tiebreaker to Karsten Sturmay.