Are great seasons on bad teams getting rarer?

Number of players who reached a certain threshold of WAR per 162 team games while playing, on aggregate, for teams who had losing records, 1995-2024

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Chart excludes the pandemic-shortened 2020 season. For players on multiple teams, winning percentages are based on how much playing time was split between the clubs he played for.

Chart: Neil PaineSource: Baseball-Reference, FanGraphsGet the dataCreated with Datawrapper