| 2018 Listowel Mixed Doubles Cash Spiel |
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| Host city | Listowel, Ontario |
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| Arena | Listowel Curling Club |
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| Dates | Feb 16–18 |
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| Winner |  N. Stewart / T. Stewart |
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| Curling club | KW Granite Club |
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| Female | Nicole Westlund Stewart |
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| Male | Tyler Stewart |
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| Finalist | J. Murphy / H. Murphy |
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The 2018 Listowel Mixed Doubles Cashspiel was a curling event held from March 31 to April 2 at the Listowel Curling Club in Listowel, Ontario as part of the World Curling Tour. The event was held in a round robin format.
Teams
The teams are listed as follows:[1]
| Female | Male | Locale |
| Carrie Burden | Alex Robertson | St.Mary's, Ontario |
| Katie Cottrill | Shaun Cottrill | Listowel, Ontario |
| Brianne Donegan | Sam Steep | Listowel, Ontario |
| Brenda Edger | Lorne Koch | Vanastra, Ontario |
| Farzana Husain | Rayad Husain |  Georgetown, Guyana |
| Sherry Just | Ryan Deis |  Fox Valley, Saskatchewan |
| Catherine Liscomb | Chris Liscomb | Ilderton, Ontario |
| Kaitlyn Little | Matt Trennum | Niagara Falls, Ontario |
| Janet Murphy | Hugh Murphy | Mississauga, Ontario |
| Jessica Shipmkaker | Craig Shinde | Mississauga, Ontario |
| Laurie Nuhn | Dennis Nuhn | Listowel, Ontario |
| Elana Sone | Leonid Rivkind |  Metulla, Israel |
| Kimberly Tuck | Wayne Tuck Jr. | Ilderton, Ontario |
| Nicole Westlund Stewart | Tyler Stewart | Kitchener-Waterloo, Ontario |
| Lauren Wasylkiw | Shane Konings | Unionville, Ontario |
| Crimson White | George White | St.Mary's, Ontario |