McTaggart won three provincial junior titles playing third for the Desirée Robertson rink in 2003 and 2005 and for Kalynn Park in 2007.

Their provincial titles qualified the rink to represent Alberta in each of those years' Canadian Junior Curling Championships.

At the 2003 Canadian Junior Curling Championships, the team finished the round robin with a 9-3 record and would lose in the semifinal, placing third overall.

At the 2005 Canadian Junior Curling Championships, the team went undefeated in the round robin, but would end up losing in the final to New Brunswick's Andrea Kelly rink.

After juniors, McTaggart played for Team Renée Sonnenberg until 2010, when she joined forced with Desirée Robertson (now Owen) again for two seasons.