mcubed.net : MLB : Boston Red Sox : biggest year-to-year improvement/decline

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Improvements/declines

Boston Red Sox : biggest year-to-year improvement/decline


Based on regular season win percentage:

                            Change in 
                              win %
Improvement: 1945 -> 1946      21.4   (46.1  ->  67.5)
Decline:     1905 -> 1906     -19.5   (51.3  ->  31.8)
Last Year:   2025 -> 2026      -1.2   (54.9  ->  53.7)