Detroit Tigers : biggest year-to-year improvement/decline
 

Based on regular season win percentage:

                            Change in 
                              win %
Improvement: 2003 -> 2004      17.9   (26.5  ->  44.4)
Decline:     1988 -> 1989     -17.9   (54.3  ->  36.4)
Last Year:   2025 -> 2026      -6.8   (53.7  ->  46.9)
    
Last updated: October 28, 2026
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