Player Batting Season & Career Finder

Leave seasons with default "First" to "Last"
Rookie Explanation
Rookie status has changed over time, but for this output we are using the following standard.

Since 1971, rookies are players who have not reached
130 at bats,
50 innings pitched, or
45 days of service time prior to Sept. 1.

Before 1971, rookies are players who have not reached
90 at bats,
45 innings pitched, or
45 days of service time prior to Sept. 1.

For the service time measure, we are requiring the player did not reach 78 days of service at the end of a season. We have service time data only back to 2009.

The pre-1971 standard is applied to all seasons back to 1871 even though it was not the standard of the time.

There were several former Negro League players who were previously considered rookies when they integrated the major leagues. In some cases, their first seasons in the AL or NL no longer fit the modern definition of rookie eligibility since their major league rookie seasons came in the Negro Leagues. For example, when "Major League rookie status" is selected, Jackie Robinson's 1945 season for Kansas City will match. When "AL/NL rookie status" is selected, Robinson's 1947 season for Brooklyn will match. In cases such as Willie Mays, 1951 with New York is still considered his rookie season because he did not exceed rookie limits during his 1948 season with Birmingham.