MLB.com Columnist

Jim Callis

Breaking down the Giants' Top 30 list

Draftees make up overwhelming majority of club's top prospects

Breaking down the Giants' Top 30 list

The Giants have won three World Series and averaged 87 wins per season this decade, thanks in large part to their ability to identify and refine talent. They signed and developed their two superstars, former first-round picks Madison Bumgarner and Buster Posey, as well as All-Star infielders Brandon Belt, Brandon Crawford and Joe Panik. They're set to contend for another championship in 2017, and on many days they'll have seven homegrown players in their lineup.

San Francisco's farm system never seems to receive much acclaim but keeps churning out big leaguers. The majority of the players on our Giants Top 30 Prospects list are set to arrive at AT&T Park in the next year or two, and right-hander Tyler Beede, infielder Christian Arroyo and outfielder Steven Duggar could play significant roles. There's plenty of bullpen help on the way, with Joan Gregorio and Steven Okert the most likely candidates to contribute in 2017.

Giants' Top 30 Prospects list

Top 30 Prospects lists
Division Release date
AL East BAL, BOS, NYYTB, TOR
NL East ATLMIA, NYM, PHI, WSH
AL Central CLE, CWSDET, KC, MIN
NL Central CHCCINMILPITSTL
AL West HOU, LAA, OAK, SEA, TEX
NL West ARICOLLADSDSF

The Giants draft consistently well, and their 2016 crop included a pair of potential outfield regulars in Bryan Reynolds (second round, their top choice) and Heath Quinn (third round) and a pair of high-risk, high-reward pitchers in Matt Krook (fourth round) and Garrett Williams (seventh round). They do good work internationally too, and sweet-swinging outfielder Sandro Fabian and flamethrowing right-handers Reyes Moronta, Rodolfo Martinez and Melvin Adon -- all from the Dominican Republic -- burst onto the prospect scene in 2016.

Biggest jump/fall
Here are the players whose ranks changed the most from the 2016 preseason list to the 2017 preseason list.

Jump: Steven Duggar, OF (2016: NR | 2017: 4)
Fall: Clayton Blackburn, RHP (2016: 12 | 2017: NR)

Best tools
Players are graded on a 20-80 scouting 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.

Hit: Christian Arroyo (60)
Power: Chris Shaw (60)
Run: Steven Duggar (65)
Arm: Ryder Jones (65)
Defense: Jalen Miller (55)
Fastball: Ray Black (80)
Curveball: Matt Krook (60)
Slider: Steven Okert (60)
Changeup: Jordan Johnson (60)
Control: Ty Blach (60)

How they were built
Draft: 24
International: 6

Breakdown by ETA
2017: 10
2018: 9
2019: 7
2020: 4

Breakdown by position
C: 1
1B: 1
2B: 1
3B: 3
SS: 1
OF: 6
RHP: 12
LHP: 5

Here's a look at the Giants' preseason Top 10 prospects from each of the past seven years (click here to see a larger image):

Jim Callis is a reporter for MLB.com. Follow @jimcallisMLB on Twitter. Listen to him on the weekly Pipeline Podcast. This story was not subject to the approval of Major League Baseball or its clubs.