The 2017 GSOC Tour Challenge was held from September 5 to 10 at the Co-operators Centre at Evraz Place in Regina, Saskatchewan. This was the first Grand Slam of the 2017–18 curling season. There were two tiers in each of the men's and women's events. The winning tier 1 teams get a direct bye into the 2018 Humpty's Champions Cup, the last grand slam event of the season. The winning tier 2 teams get a bye into the 2017 Masters, the next grand slam event of the season.