The Baltimore Orioles pulled off one of the biggest MLB upsets in the last 15 years Sunday.
The Orioles, who were listed high as +420 underdogs at some U.S. sportsbooks, knocked off Justin Verlander and the Houston Astros 8-7.
The Washington Nationals beat the Minnesota Twins as +390 underdogs in 2007, according to sports betting database BetLabSports.com, which has data back to the 2005 season. The Miami Marlins topped Clayton Kershaw and the Los Angeles Dodgers as +320 underdogs last season.