Prospect Eligibility | MLB.com 2015 Prospect Watch | MLB.com

 

Listed below is the definition mlb.com uses to prepare their prospect lists for each team. They closely follow MLB's definition for rookie status. Therefore, they will continue to list Adam Duvall, who has made some token appearances at the major league level, as a prospect.

from mlb.com
http://m.mlb.com/prospects/2015?list=sf
http://m.mlb.com/prospects/2015?list=sf

To be eligible for a list, a player must have rookie eligibility. To qualify for rookie status, a player must not have exceeded 130 at-bats or 50 innings pitched in the Major Leagues, or accumulated more than 45 days on the active roster of a Major League club or clubs during the 25-player limit period, excluding time on the disabled list or in military service.

The rankings follow the guidelines laid out by the new Collective Bargaining Agreement in terms of who falls under the international pool money rules: Players who are at least 23 years old and played in leagues deemed to be professional (Japan, Korea, Taiwan, Cuba) are not eligible.

Players are graded on a 20-80 scale for future tools - 20-30 is well below average, 40 is below average, 50 is average, 60 is above average and 70-80 is well above average.

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They also include guys like Cody Hall (27 year old) and Ray Black (just turned 25 years old), both of whom are over 25 years old. I would remove them from the list as more suspect than prospect due to advanced age, but to each their own.

In fairness, Black loss developmental time to surgery. At 6-5, 225 and chucking it at 100 MPH at times, I wish him good health.  He could be Hunter Strickland 2.0 for the Grande Gigantes.