Baseball's Amateur Draft: Comparing Early & Late-Round Picks, Pitchers & Hitters, & College & High School Players
Texas Rangers general manager Jon Daniels (left) and scouting director Ron Hopkins (right) introduce 2008 first-round selection Justin Smoak on August 16th, 2008.The Rule 4 draft in baseball is the least hyped among those used to divvy up amateur talent among major sports teams. Unlike football, basketball and hockey fans, most baseball fans pay little or no attention to the draft because most draftees fail to become major league players and those who do usually require 2-5 years to navigate baseball's minor league development system. For the obsessive few, however, the day of the MLB Draft is one of the more exciting days of the year since it provides teams with an annual opportunity to upgrade their farm systems and provide hope for the future.
For those of you who do obsess, the following is a brief review of the impact that the modern-day amateur draft has on major league baseball teams.
ELITE PLAYERS AND DRAFT POSITION
Of the top 120 major league players in 2008 (via The Hardball Times), 95 (79 percent) began their professional careers after being drafted. The remaining 25 (21 percent) were signed as international free agents. More than one-third of MLB's top 120 players in 2008 were former first-round picks and 60 percent (72 players) were drafted in the first five rounds (see graph below):

Of the 41 players shown in the graph above who were drafted in the first round, 75 percent were selected in the top 20 picks in their respective drafts (see graph below). Interestingly, almost as many were drafted in the No. 11-20 range as were drafted among the top 10 selections, suggesting that is difficult to discriminate the top-end talent available in the baseball draft. Taking the group of seven Top 120 MLB players in 2008 who were selected No. 1 overall as a class to themselves, it is interesting to note that selections No. 11-20 have been more productive in generating elite major league talent than selections No. 2-10 (14 vs. 10 players). Also worth noting is that once you get beyond the top 20 picks, there is a significant drop-off in the number of elite players:

DRAFT POSITION AND MAJOR LEAGUE SUCCESS
Baseball's elite typically begin their professional careers as draftees. But how often do drafted players reach the major leagues and how does draft position correlate with success? To answer these questions, I used the draft database at Baseball Reference to calculate the percentage of players drafted in 2000-2005 who have spent at least a few games in the major leagues. The average percentages of players drafted in various rounds for these six years are graphed below. As expected, players drafted in the earlier rounds were more successful in making it to the major leagues. Surprisingly, almost 60 percent of the first-round picks and 40 percent of the second-round picks from 2000-2005 have spent time in the majors. Clearly, taking note of the amateur draft is one way to get a very early look at who you are likely to see playing for your favorite team in five years:

POSITION PLAYERS VS. PITCHERS
In the 2000-2005 drafts, 250 players were selected in the first round. 137 (55 percent) were pitchers and 113 (45 percent) were position players (see table below). Of the pitchers selected in the first round, 53 percent have appeared in the major leagues, 36 percent have appeared in at least 30 major league games, and 15 percent have put up All-Star-caliber numbers. Of the position players selected in the first round, 62 percent have appeared in the major leagues, 47 percent have played in at least 100 games, and 19 percent have appeared in an All-Star game or are currently putting up All-Star-caliber numbers. These data suggest that teams that use their first-round picks on position players are more likely to see returns at the major league level. The data also reveal that players who are talented enough to be first-round picks often perform at very high levels once they are promoted to the major leagues:
|
COLLEGE VS. HIGH SCHOOL DRAFTEES
Of the 250 first-round picks from the 2000-2005 drafts, 114 were drafted out of high school and 136 were drafted out of college programs. Fifty percent of the high school draftees have appeared in the major leagues, 35 percent have pitched in at least 30 games or hit in at least 100, and 18 percent have appeared in or are on track to appear in at least one All-Star Game. Sixty-three percent of the college draftees have appeared in the major leagues, 46 percent have pitched in at least 30 games or hit in at least 100, and 16 percent have begun All-Star-caliber careers. These results are consistent with studies from earlier drafts that suggested that college players are better bets to reach the major leagues:
|
Noteworthy from the 2000-2005 drafts is that the hit rate on All-Star-caliber players drafted in the first round slightly favors high school players (18 percent for high school draftees vs. 16 percent for college draftees). The difference becomes more compelling when you consider the cream of the crop from these six drafts. Listed below are the very top major league players who were selected in the first rounds of the 2000-2005 drafts. The players are categorized based upon whether they were drafted and signed as college or high school players. The number of elite or soon-to-be elite high school draftees exceeds the number of elite college draftees by 13-to-9. Particularly interesting is the discrepancy between the high-end pitchers, where high school draftees outnumber college draftees at a 6-to-1 rate.
College First-Round Draft Picks: Justin Verlander, Mark Teixeira, Chase Utley, Nick Markakis, Ryan Zimmerman, Troy Tulowitzki, Ryan Braun, Carlos Quentin, Stephen Drew
High School First-Round Draft Picks: Zach Greinke, Chad Billingsley, Cole Hamels, David Wright, Prince Fielder, Adrian Gonzalez, Joe Mauer, B.J. Upton, Justin Upton, Jay Bruce, Scott Kazmir, John Danks, Adam Wainwright
THE GRAND CONCLUSIONS
● First-round picks, especially those in the top 20, provide tremendous opportunities for organizations to improve their future major league teams.
● When it comes to first-round picks, position players are safer bets than pitchers and college players are safer bets than high school players.
● High school draftees are better bets to become elite pitchers than college draftees.
8 Comments | in
Analysis,
MLB Draft,
Prospects,
The Season 



Reader Comments (8)
Great stuff David (and yes, this is the longest article title in BBTiA history). Very informative breakdown which essentially quantifies/confirms the prevailing theory that high school draftees are more of a boom-bust proposition than collegiate draftees.
Question: When you refer to the majors' top 120 players of 2008, by what metric are you measuring those players? Win shares? Have you at all contemplated making the jump to wins above replacement?
FWIW, Missouri right-hander Kyle Gibson (a consensus top-10 draft prospect) has been diagnosed with a stress fracture in his forearm which will, for all intents and purposes, mean one less good player potentially slipping to No. 14. A LOT of mock drafts are going to be shattered if Shelby Miller doesn't sneak to Texas, and this development is a step towards Miller not making it to No. 14...but then we'll have more on that a little later.
Nice analysis David. Thank you for conducting and sharing the research. I wonder to what extent the Rangers drafts reflect the MLB patterns? Do they have a higher rate of draft picks reaching the majors? Similar trends with HS and college prep players?
When BA and other publications conduct their annual farm system ratings, It would be interesting to include data citing a comparative advantage for systems that consistently outperform the MLB averages in developing talent...... just a thought.
The ranking that I used to identify the Top 120 players in 2008 was based upon win-shares, though I did cross-check my list against the WPA and REW player rankings produced at FanGraphs and confirmed that the player lists are essentially interchangeable. Though FanGraphs has a lot of add-ons that I like and use often, I prefer the win-share database at The Hardball Times because it provides hitting, pitching, defensive metrics, and career totals in a single table.
Revelations for me in this study were the significant upside benefits associated with drafting high school players (especially pitchers), the similar performances of players selected in the Top 10 and those selected in the 11-20 range, and the number of very good players drafted in the second round. Given the depth of their current farm system and the talent pool available in this year's draft, the Rangers would seem to be best served by selecting a high school pitcher with their first round pick.
Nice breakdown. The 60-65% of first rounders went on to the majors during the 1990s as well.
How many of the late round picks, like 11-20, were draft and follow?
I find it entertaining to look at the LSB discussion leading up to the 2007 draft, when the Rangers had that massive number of first rounders.
http://www.lonestarball.com/2007/6/6/16477/95093#2649875
Stuff that was left out to conserve space, but that you might find interesting:
8 teams have at least five 1st round draft picks from 2000-2005 who are currently playing in the major leagues:
Athletics - 9
Braves - 8
Giants - 6
Angels - 5
Diamondbacks - 5
Mets - 5
Red Sox - 5
Twins - 5
The A's benefit from having had 19 first round draft picks during teh time frame. The Braves have been more efficient than the A's having produced their 8 with only 13 first round picks. Only three Rangers 1st rounders are currently in the majors (Teixeira, Danks, and Mayberry).
The Diamondbacks were the most effective team from 2000-2005 in converting 1st round picks into elite major leaguers with Jackson, Drew, Quentin, and Upton. Seven teams drafted two all-star caliber players in the first rounds of the same drafts:
Brewers - Fielder and Braun
Dodgers - Billingsley and Loney
Mets - Wright and Kazmir
Phillies - Utley and Hamels
Rangers - Teixeira and Danks
Rockies - Tulowitzki and Francis
Twins - Mauer and Garza
Rooster - Of the 14 players ranked among the Top 120 during 2008 who were drafted after the 10th round, only four were draft and follows. I would have expected more.
Thanks for the LSB link.
Excellent work
Good stuff...