What is the IP limit to be considered a Rookie by MLB?

Joshua.Roundtree · Oct 4, 2010

25IP-12H-2R-2ER-41K-15BB-.130BAA-1.00WHIP is the line for a player that made his MLB debut this season. I was wondering if he could win the ROY award next season considering he has so few innings pitched. What is the IP limit for pitchers to still be considered a rookie?

Joshua.Roundtree · Oct 4, 2010

Ok finally ran a google search that came up with what I was looking for. 50IP is the limit for pitchers' rookie status and 130ABs for batters'. It seems like it would be easier for a pitcher to make a debut and still have rookie status compared to a hitter, especially a pitcher that is used in relief. Player is Kenley Jansen of the Dodgers. He had a great debut season, especially when you consider he was a catcher until 2009.

leatherman · Oct 4, 2010

A player shall be considered a rookie unless, during a previous season or seasons, he has (a) exceeded 130 at-bats or 50 innings pitched in the Major Leagues; or (b) accumulated more than 45 days on the active roster of a Major League club or clubs during the period of 25-player limit (excluding time in the military service and time on the disabled list).

It's not the innings that are significant for a relief pitcher: it's the time he spent on the 25-player limit roster.

He was called up on July 23, and the roster expanded on September 1st, so he spent 39 days on a MLB roster. Therefore, Jansen is still considered a rookie.

In 2002, Brendan Donnelly had 49.2 IP, which was his first season. However, he was on the roster in April, June, and from July 13th until the end of the season. He was no longer a rookie in 2003, despite having pitched in less than 50 innings, due to the amount of time he spent on the 25 man roster.

Joshua.Roundtree · Oct 4, 2010

leatherman said:
A player shall be considered a rookie unless, during a previous season or seasons, he has (a) exceeded 130 at-bats or 50 innings pitched in the Major Leagues; or (b) accumulated more than 45 days on the active roster of a Major League club or clubs during the period of 25-player limit (excluding time in the military service and time on the disabled list).

It's not the innings that are significant for a relief pitcher: it's the time he spent on the 25-player limit roster.

He was called up on July 23, and the roster expanded on September 1st, so he spent 39 days on a MLB roster. Therefore, Jansen is still considered a rookie.

In 2002, Brendan Donnelly had 49.2 IP, which was his first season. However, he was on the roster in April, June, and from July 13th until the end of the season. He was no longer a rookie in 2003, despite having pitched in less than 50 innings, due to the amount of time he spent on the 25 man roster.

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What is the IP limit to be considered a Rookie by MLB?

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