ESPN.com · Jun 15, 2025
What are the worst records in MLB history?
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In June 2025, the Colorado Rockies claimed the fewest wins through 70 games since the 1899 Cleveland Spiders. At this juncture, Colorado (.186 win percentage) is on pace to go 30-132 this season.
The Chicago White Sox struggled at an even greater historical level throughout the full duration of the 2024 season. At the end of September, the White Sox broke the modern MLB era record for most losses in a season.
Check out the historical rundown below:
Worst Records, MLB History
(Min. 150 Games Played; W-L, Win Pct)
1899 Cleveland Spiders: 20-134, .130
1916 Philadelphia A's: 36-117, .235
1935 Boston Braves: 38-115, .248
1962 New York Mets: 40-120, .250