The Astros were widely predicted to be terrible this season, and they're living down to the hype. After an 8--2 opening night win over the Rangers, Houston had lost five straight through Sunday by a combined score of 34--9. Should the 'Stros keep it up, they could make a strong argument for joining these teams as baseball's alltime worst.
8 2003 Tigers
Detroit could have ranked much higher, but faced with the prospect of breaking the modern major league record for losses (120), the Tigers displayed the kind of grit and skill that can get teams knocked off lists such as this: They reeled off five wins in their last six games.
7 1935 Boston Braves
Babe Ruth's return to Boston at age 40 didn't go so well. He hit just six homers (three of which came on one day) and retired on June 2, with the Braves' record at 10--27.
6 2004 Diamondbacks
Three years removed from a World Series championship, Arizona reached its nadir. Take away Randy Johnson's 16--14 mark, and the team's winning percentage was a paltry .265.