The 2005 Ontario Scott Tournament of Hearts, Ontario's provincial women's curling championship, was held January 24–30 at the Rideau Curling Club in Ottawa. The winning team of Jenn Hanna would go on to represent Ontario at the 2005 Scott Tournament of Hearts in St. John's, Newfoundland and Labrador.

Hanna's win would be the first of two provincial championships in her career, not winning her second championship until 2016. It would also be the lone provincial championship for her third Pascale Letendre and the first of two for her sister, lead Stephanie Hanna. Her second Dawn Askin would later move to Manitoba to play lead for Jennifer Jones and win several provincial, national, two world championships and an Olympic gold there.

Hanna's rink from the nearby Ottawa Curling Club had a slow start at the event, and had a 1-4 record at one point. However, they pulled off eight straight wins to win the championship. At the national Scott Tournament of Hearts, the rink had a similar slow start before rallying to make the playoffs before losing in the final to Manitoba's Jones.

The defending champion Sherry Middaugh rink failed to qualify.

Teams SkipThirdSecondLeadCurling ClubKathy Brown Janet Langevin Christine Loube Heather Carr Sutton Curling Club, Sutton West Chrissy Cadorin Denna Schell Leigh Armstrong Stephanie Leachman Guelph Curling Club, Guelph Tara George Liz Kingston Tiffany Stubbings Lorraine Lang Fort William Curling Club, Thunder BayJenn Hanna Pascale Letendre Dawn Askin Stephanie Hanna Ottawa Curling Club, OttawaJanet McGhee Julie Reddick Lori Eddy Mary Chilvers Uxbridge and District Curling Club, UxbridgeKim Moore Lindsay Loevenmark Melissa Foster Deb McPhadden North Halton Golf and Country Club, Georgetown Jo-Ann Rizzo Cheryl McPherson Kimberly Tuck Sarah Gatchell Brant Curling Club, BrantfordKrista Scharf Angie Del Pino Leesa Broder Laura Armitage Fort William Curling Club, Thunder BayDawn Schwar Margaret McLaughlin Shannon Roy Janice Vettoretti Sudbury Curling Club, SudburyElaine Uhryn Kelly McLellan Sherri Maguire Karen Bonenfant Soo Curlers Association, Sault Ste. Marie

Standings SkipWLChrissy Cadorin (Guelph) 7 2 Krista Scharf (Fort William) 6 3Jo-Ann Rizzo (Brant) 6 3 Jenn Hanna (Ottawa) 5 4 Janet McGhee (Uxbridge) 5 4Kathy Brown (Sutton) 5 4Tara George (Fort William) 4 5 Kim Moore (North Halton) 3 6Elaine Uhryn (Soo) 3 6Dawn Schwar (Sudbury) 1 8

Round robin scores

Draw 1 January 24 McGhee 6-5 Moore Cadorin 7-4 Hanna Schwar 9-5 Uhryn Scarf 8-6 Brown Rizzo 8-5 George

Draw 2 January 24 George 9-5 Hanna Moore 7-4 Schwar McGhee 6-3 Brown Cadorin 8-4 Rizzo Scharf 8-2 Uhryn

Draw 3 January 25 Cadorin 6-3 Uhryn Brown 7-4 Rizzo Scharf 6-5 Moore George 7-1 Schwar Hanna 7-2 McGhee

Draw 4 January 25 Moore 7-6 Brown Uhryn 9-6 Hanna Cadorin 7-3 George McGhee 6-3 Scharf Rizzo 5-3 Schwar

Draw 5 January 26 McGhee 6-5 Schwar Scharf 7-0 George Cadorin 11-6 Moore Rizzo 7-3 Hanna Brown 7-6 Uhryn

Draw 6 January 26 Scharf 9-1 Rizzo Uhryn 7-6 McGhee Brown 6-4 Cadorin Hanna 9-3 Schwar Moore 6-4 George

Draw 7 January 27 Hanna 6-3 Brown Rizzo 8-1 Moore Scharf 6-1 Schwar George 8-3 Uhryn McGhee 8-1 Cadorin

Draw 8 January 27 Cadorin 7-6 Schwar Brown 8-6 George Uhryn 7-4 Moore Rizzo 5-4 McGhee Hanna 9-4 Scharf

Draw 9 January 28 Rizzo 8-1 Uhryn Cadorin 10-7 Scharf George 8-7 McGhee Hanna 9-4 Moore Brown 9-4 Schwar

Tiebreakers January 28 & 29 McGhee 8-5 Brown Hanna 7-4 McGhee

Playoffs

1 vs. 2 January 29

3 vs. 4 January 29

Semifinal January 30

Final January 30

Qualification Qualification method Berths Qualifying team Northwestern Ontario 2 Krista Scharf Tara George Northeastern Ontario 2 Dawn Schwar Elaine Uhryn East Regional Qualifier 2 Jenn Hanna Janet McGhee West Regional Qualifier 2 Kim Moore Jo-Ann Rizzo Challenge Round Qualifiers 2 Kathy Brown Chrissy Cadorin

Southern Ontario Zone winners Regional winners in bold. Challenge round qualifiers in bold and italics. ZoneWinnerClub1A Jenn Hanna Ottawa1B Cheryl McBain Ottawa2A Darcie Walker Rideau2B Anne Merklinger Rideau 3A Tracy Samaan Granite of West Ottawa3B Debra Karbashewski Carleton Place4A Pauline Bakonyi Quinte4B Joyce Potter* Rideau5A Lisa Payne Peterborough5B Jennifer Cowan Beaverton6A Kathy Brown Sutton6B Janet McGhee Uxbridge7A Alison Goring Bayview7B Delaine Payton Scarboro8A Colleen Madonia Mississaugua 8B Kelly Cochrane High Park9A Kim Moore North Halton9B Kristy Russell Brampton10A Sherry Middaugh Coldwater10B Wanda Fleming Elmvale11A Vicki Gregg Paisley11B Anne Dunn* Galt 12A Dawn Sherk Galt12B Elaine Voisin Westmount13A Stacey Brandwood Glendale 13B Jordan Davies Burlington14A Kori VanRyssel Harriston14B Amy Mackay* St. Catharines15A Jo-Ann Rizzo Brant15B Karen Bell Brant 16A Amie Coward Kingsville16B Carrie Lindner* St. Catharines * Fill in team from a different zone (not enough entries)

References Ottawa Citizen, January 25–31 editions Ottawa Sun, January 30 & 31 editions Ontario Curling Association - 2005 Annual General Meeting Report