Ryan Hahn (Ottawa, ON) lost 8-6 to Nicholas Connolly (Seattle, USA) in the Final of the U21 Crystal Slam, held October 20 - 22, 2017 at the Rideau Curling Club in Ottawa, Canada. To advance to the championship game, Hahn won 7-2 over Gavin Lydiate (Hawkesbury, ON) in the semifinals of the 2017 U21 Crystal Slam in Ottawa, Ontario, Canada;
 
Hahn finished 3-2 in the 0-team qualifying round. . In their opening game, Hahn lost 6-5 to Andrew Kelly (Ottawa, ON), then responded with a 7-4 win over Sam Steep (Seaforth, ON). Hahn won 7-5 against Connolly. Hahn went on to lose 7-1 against Jordan McNamara (Ottawa, ON). Hahn responded with a 8-2 win over Lydiate in their final qualifying round match.
 
. For week 11 of the event schedule, Hahn did not improve upon their best events, remaining at th place on the World Ranking Standings with total points. Hahn ranks th overall on the Year-to-Date rankings with points earned so far this season.