Pittsburgh Penguins : biggest year-to-year improvement/decline
 

based on regular season win percentage:

                            Change in 
                              win %
Improvement: 2006 -> 2007     0.286   (0.354 -> 0.640)
Decline:     1982 -> 1983    -0.188   (0.469 -> 0.281)
Last Year:   2025 -> 2026     0.110   (0.488 -> 0.598)
    
Last updated: June 14, 2026
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