mcubed.net : MLB : Chicago Cubs : biggest year-to-year improvement/decline

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NCAA Football

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Monthly

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Best/worst

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Franchise wins

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Streaks

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Playoffs

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Streaks

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Division wins

Coaches

Improvements/declines

Chicago Cubs : biggest year-to-year improvement/decline


Based on regular season win percentage:

                            Change in 
                              win %
Improvement: 1966 -> 1967      17.6   (36.4  ->  54.0)
Decline:     1998 -> 1999     -13.8   (55.2  ->  41.4)
Last Year:   2025 -> 2026      -1.9   (56.8  ->  54.9)