The Browns improved from 150/1 on February 8 and March 14 to 100/1 in today's iteration.
Apparently, Bovada must have read Pro Football Focus' grade of the Browns draft.
Reviews and grades have steadily flowed in for the Browns' 14-player draft class. Many traditional experts, such as Mel Kiper and others, have given the Browns C's. However, some newer, analytics-based sites such as PFF have graded the Browns as highly as A's.
Not everyone is in approval, though. On May 1, Las Vegas Superbook placed the Browns' over/under win total at 4 1/2, the lowest in the NFL.
The odds for the Browns to win a Super Bowl are still minuscule, but anything is possible. Leicester City just won the Premier League title after starting off the season at 5,000/1 odds.
Bovada released other post-draft props today, too, including NFL Offensive Rookie of the Year odds. Corey Coleman received a favorable chance at a 15/2, the fourth best odds in the league. Only Jared Goff (2/1), Ezekiel Elliott (5/2), and Derrick Henry (7/1) finished higher.
Hey, crazier things have happened, though a Browns player has never been named Offensive Rookie of the Year.