Mitchell made her first national appearance at the 2006 Canadian Junior Curling Championships playing third for Sarah Murphy. After a 7–4 round robin record, they defeated Northern Ontario in the tiebreaker before losing to Manitoba to claim the bronze medal.[3] Team Murphy (Rhyno at the time) qualified for their first Grand Slam of Curling event at the 2007 Sobeys Slam, going 0–3 in the triple knockout event. In 2010, her team qualified for the playoffs at the 2010 Nova Scotia Scotties Tournament of Hearts where they lost in the semifinal to eventual champion Nancy McConnery.[4] They played in the Sobeys Slam for a second time in 2010, failing to reach the playoffs once again.
Team Brothers played in the 2019 Tour Challenge Tier 2 Grand Slam of Curling event, missing the playoffs with a 1–3 record. They also finished runner-up at The Curling Store Cashspiel. They couldn't win their fifth straight Dave Jones Mayflower Cashspiel, losing out in the semifinals to Tori Koana. At the 2020 Nova Scotia Scotties Tournament of Hearts, they lost in the semifinal to Colleen Jones. Due to the COVID-19 pandemic in Nova Scotia, the 2021 Nova Scotia Scotties Tournament of Hearts was cancelled.[12] Since the reigning champions, Team Mary-Anne Arsenault, did not retain three out of four team members still playing together, Team Brothers (the top-ranked Nova Scotia team on the points list for the 2020–21 season) was invited to represent Nova Scotia at the 2021 Scotties Tournament of Hearts, which they accepted.[13][14] One member of Team Brothers, Sarah Murphy opted not to attend the Scotties, with Mitchell moving up to second and alternate Emma Logan moving up to play lead. At the Tournament of Hearts, the team finished with a 3–5 record, failing to make it to the championship round.[15]
Personal life
Mitchell is employed as an autism specialist at HRCE. She is married to Chris Mitchell.[16]