Worst MLB Records Ever
- No. 1: 1899 Cleveland Spiders – 20-134 (.134)
- No. 2: 1890 Pittsburgh Alleghenys – 23-113 (.169)
- No. 3: 1889 Louisville Colonels – 27-111 (.196)
- No. 4: 1897 St. Louis Browns – 29-102 (.221)
- No. 5: 1886 Washington Nationals – 28-92 (.233)
- No. 6: 1916 Philadelphia Athletics – 36-117 (.235)
- No. 7 (tie): 1886 Kansas City Cowboys – 30-91 (.248)
- No. 7 (tie): 1935 Boston Braves – 38-115 (.248)
- No. 9: 1962 New York Mets – 40-120 (.250)
- No. 10: 1904 Washington Senators – 38-113 (.252)
What is the worst MLB season won-lost record ever?
The worst MLB season won-lost record ever is held by the 1899 Cleveland Spiders. This infamous team ended their season with a dismal 20-134 record, resulting in a win percentage of just .134. Their performance has become a benchmark for futility in the sport.
What is the worst MLB season won-lost record post-1900?
The title for the worst season won-lost record in the post-1900 era belongs to the 1916 Philadelphia Athletics. They concluded their season with a record of 36-117, achieving a win percentage of .235, marking a significant low point in their storied history.
