Delahunt was a longtime member of the Colleen Jones team which won five Scott Tournament of Hearts (1999, 2001, 2002, 2003, 2004) and two World Curling Championships (2001, 2004). Delahunt was a rarity among leads, because she held the broom for when Jones threw. She rejoined Jones in 2011 participating in the Nova Scotia Senior Women's Championship, along with Marsha Sobey and Sally Saunders. The team won the provincial title and would represent Nova Scotia at the Canadian Senior Women's Curling Championships.
At the beginning of the 2011/2012 curling season Jones had formed a rink with three players, all of whom previously played with Theresa Breen. However Jones has modified her lineup adding Delahunt at third, Sobey at second and Mary Sue Radford (who began the season with Jones) at lead. The team has entered the qualifying round for the Nova Scotia Scotties with a goal of advancing to provincials and winning the title.
For the 2012/2013 season Jones will reunite with Mary-Anne Arsenault and Kim Kelly, with the goal of reaching the 2014 Winter Olympics in Sochi, Russia. Jones will either play third or second position, while Arsenault will skip. Arsenault's current lead Jennifer Baxter, will play lead, while her third Stephanie McVicar, is expected to join the team as the fifth. Delahunt has offered to join the team as coach or manager. Since this announcement McVicar has left the team to play with Heather Smith-Dacey, and Delahunt has joined the team as the 5th. Jones will play third, and Kelly will remain at second. 
She is currently president of the Clayton Park Chapter of the NCDC.