Tour Challenge
The Tour Challenge, known as the HearingLife Tour Challenge for sponsorship reasons, is a bonspiel, or curling tournament, which is one of the Grand Slam of Curling events. It was introduced into the Grand Slam lineup starting in the 2015–16 curling season.
The event features a men's and women's draw, and is split into two tiers of 16 teams each, Tier 1 and Tier 2. The top 16 teams on the World Curling Federation team ranking qualify for the Tier 1 event, while the next top 16 teams qualify for the Tier 2 event. The winning team at the Tier 2 event qualifies for another Grand Slam, the Canadian Open. For the 2025 edition of the Tour Challenge, the Tier 2 event was replaced with a GSOC Jr. U25 Tour Challenge Event, to showcase the future of the sport and support the transition of teams from juniors to men's/women's play.
From 2022 to 2023, the format consisted of four pools, where each team played all four of their games against the four teams of another pool. The top 8 teams overall made the playoffs. In 2023, tiebreakers were dropped. In 2024, the event became a triple knockout event for the first time. In 2025, the Tier 1 event, as well as the U25 event, returned to the pool format, with each team playing the three other teams in their pool. The Tier 1 event also includes a cross over game.