Recent history has shown that preseason Heisman Trophy odds have no bearing on who will actually hold up the trophy in December.
Since 2012, 2014 Heisman winner Marcus Mariota had the best odds at this time of year at 6/1, only behind 2013’s winner Jameis Winston. The previous year Winston, as a redshirt freshman, wasn’t even on the Heisman radar in mid-July. The same thing goes for 2012 winner Johnny Manziel.
In 2015 we all remember the Jeremy Johnson hype, as he had 10-1 odds in early July.