The byelection, set for Oct. 18, will ensure all seats in legislature are full when the fall sitting begins, though Premier Brad Wall had a six month window in which to call the election.
The seat has been open since Saskatchewan Party MLA Serge LeClerc resigned Sept. 1 due to allegations of illegal drug use — which he denies.
With the currently empty seat, there are 37 Saskatchewan Party members and 20 New Democrats in legislature.
Gord Wyant, a Saskatoon city councillor, will be running for the incumbent Sask party. Jan Dyky and lawyer Manny Sonnenshein will run for the NDP and Progressive Conservatives, respectively.