I've never seen anything like it. Have you?
The Tampa Bay Devil Rays are winners (16-14) at home, but they're 4-28 (.125) everywhere else.
The Houston Astros are winners (17-12) at home, but they're 7-23 (.233) everywhere else.
The Colorado Rockies are (almost) winners at home (16-16), but they're 4-23 (.148) everywhere else.
How bad are those numbers (through June 11)? Only five teams in the 20th century weren't able to win at least 20 percent of their road games. Those five: the 1935 Boston Braves (13-65, .167 winning percentage), 1916 Philadelphia Athletics (13-64, .169), 1945 Athletics (13-63, .171), 1909 Washington Senators (15-62, .195), and 1904 Senators (15-61, .197).