The Sandover Medal has been awarded annually since 1921 to the fairest and best player in the West Australian Football League. The award was donated by Alfred Sandover M.B.E., a prominent Perth hardware merchant and benefactor.

After each match, the three field umpires (those umpires who control the flow of the game) confer and award a 3, 2 and 1 point vote to the players they regard as the best, second best and third best in the match respectively. Voting has changed over the years, with 5,4,3,2 and 1 point votes awarded between 1985 and 2018. From 1930-1984 the current 3,2,1 system was used, and prior to 1930 there was only one vote per game.

On the awards night, the votes over the home and away (regular) season are tallied and the eligible player with the highest number of votes is awarded the medal. In the past, ties were decided on a countback system, but since 1985 it is possible for multiple medals to be awarded in the event of a tie.

Prior to 1930 when only 1 vote per game was given, and hence a countback was not possible, the WAFL presidents would cast a deciding vote to decide the winner. Players that had missed out on a medal due to the countback system were awarded them retrospectively in 1997.