At just 19, Hastings made it to the final of the 1995 Ontario Scott Tournament of Hearts, losing to Alison Goring.

[4] On the Women's World Curling Tour circuit, Hastings' team has won the Brampton Bacardi Cashspiel in 2005, the Sun Life Invitational in 2007, the Brampton Curling Classic in 2009, the Stu Sells Toronto Tankard in 2010, the KW Fall Classic in 2009, 2011, 2013, and 2014, the Mount Lawn Gord Carroll Classic in 2013, and the Stroud Sleeman Cash Spiel in 2012 and 2014.

[9] Her second Grand Slam event was the 2011 Manitoba Lotteries Women's Curling Classic.

At the 2013 Ontario Scotties Tournament of Hearts, she led her team to a 5–4 round robin record, losing to Sherry Middaugh in a tie breaker match.

[15] Hastings won the 2015 Ontario Scotties Tournament of Hearts, beating Sherry Middaugh 9–5 in the final.