All along, the Mavericks flew under the radar. Dallas was posted as high as 32-1 odds to win the title two months into the season.
Miami was a minus-180 series favorite in the Finals and a 5-point favorite in Sunday's Game 6.
"I know there were a lot of people rooting against the Heat," Las Vegas Hilton sports book director Jay Kornegay said. "It's really good to see those four guys for the Mavericks win a championship."