* The player was ineligible to win the medal due to suspension by the AFL Tribunal during the year.
Voting procedure
The three field umpires (those umpires who control the flow of the game, as opposed to goal or boundary umpires) confer after each match and award three votes, two votes, and one vote to the players they regard as the best, second-best and third-best in the match, respectively. The votes are kept secret until the awards night, and they are read and tallied on the evening.[5]
Favourites
For most of the season, Carlton's Chris Judd was an overwhelming favourite in betting markets to win the award for a second consecutive year, and third time overall. By round 18, his odds were shorter than $2 to win the award, and one agency, Sportsbet, decided to pay out early to all punters who had already backed Judd for the win.[6] Sydney's Adam Goodes, who had attracted odds as wide as $30 during the season, had a very strong end to the season, and closed in to second-favouritism by the count.[7] Collingwood's Scott Pendlebury and Dane Swan, and Carlton's Marc Murphy, were also expected to feature prominently in the count.
Ineligible players
As the medal is awarded to the fairest and best player in the league, those who have been suspended during the season by the AFL Tribunal (or, who avoided suspension only because of a discount for a good record or an early guilty plea) are ineligible to win the award; however, they may still continue to poll votes. The most notable player ineligible for the 2011 Brownlow Medal was Hawthorn's Sam Mitchell. Mitchell received a one-match sanction, which was reduced to a reprimand without suspension with an early guilty plea, for rough conduct against Geelong's, Steve Johnson in round 5.[8] Mitchell featured prominently in several media best and fairest awards, including winning the Lou Richards Medal[9] and the Herald Sun Player of the Year,[10] and was considered a realistic chance to poll the most votes; he ultimately polled the second-most votes, four fewer than winner Dane Swan. His 30 votes was the most by any ineligible player in AFL history until it was surpassed by Geelong's Patrick Dangerfield's 33 votes in 2017.