Ryhner made her Swiss Women's Hockey League A (SWHL A) debut with the ZSC Lions Frauen in 2015.

After scoring 41 points in 38 games with Reinach over three years with the club, she transferred to the Ladies Team Lugano for the 2020–21 season.

[1] As a junior player with the Swiss national under-18 team, Ryhner participated in the IIHF U18 Women's World Championship in 2015, 2016, 2017, and 2018.

At the 2016 Winter Youth Olympics in Lillehammer, she won a bronze medal in the girls' ice hockey tournament while serving as an alternate captain to the Swiss under-16 team.

[2][3] She was named to the Swiss roster for the 2020 IIHF Women's World Championship, before the tournament was cancelled due to the COVID-19 pandemic.