排序複選制
The Athabasca electoral district would return a single member to the Legislative Assembly through first-past-the-post system of voting from 1905 until 1924, when the United Farmers government introduced the new "The Alberta Election Act" which would institute instant-runoff voting in rural electoral districts throughout the province. Instant-runoff voting would remain until the Social Credit government introduced amendments to "The Election Act" prior to the 1959 Alberta general election which returned every district in the province to a single member elected through first-past-the-post voting system. Instant-runoff voting would have a relatively minor effect on the Athabasca district, as elected members received a plurality of votes (above 50%) in all general elections besides 1926, 1940 and 1955.