APRIL DEBUTS: NATIONAL LEAGUE

Carter Kieboom - Salt River Rafters - 2018 Arizona Fall League (Bill Mitchell)

Feature Photo: Carter Kieboom, SS, Washington Nationals

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We just released our updated Top 125 Prospects entering 2019. Click here to view our user-friendly table, sortable by team, age, position, grade, MLB ETA, and more.

 

Our new 2019 pro-side video and spotlight libraries are now live! Check out the links below:

Pro Video Library (20192018)

Pro Spotlight Library (20192018)

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Carter Kieboom, SS, Washington Nationals

Top 125 Rank: 16  | Organizational Rank: 2

Ceiling: 60          Risk: High          Role Description: Potential All-Star
Ht/Wt: 6’2” / 190 lbs.          B/T: R/R        Age (as of April 1, 2019): 21y, 7m
Video #1Video #2ReportSpotlight

Instinctual player with special makeup; chance to be an offensive producer at a center-diamond position.  

 

Jon Duplantier, RHP, Arizona Diamondbacks

Top 125 Rank: 57  |  Organizational Rank: 2

Ceiling: 55          Risk: High          Role Description: Above-Average Starter (#3 SP)
Ht/Wt: 6’4” / 225 lbs.          B/T: R/R        Age (as of April 1, 2019): 24y, 8m
Video #1 | Video #2 | Video #3 | Report

Excellent makeup with power fastball/slider combo, developing changeup; ceiling of #3 SP if he can stay healthy and outrun long injury history. 

 

Cole Tucker, SS, Pittsburgh Pirates

Top 125 Rank: 112  |  Organizational Rank: 5

Ceiling: 50          Risk: Moderate          Role Description: Everyday Player
Ht/Wt: 6’3” / 205 lbs.          B/T: S/R        Age (as of April 1, 2019): 22y, 8m
Video #1Video #2 | Video #3 | Report

Plus instincts, special makeup; flat-out baseball player who impacts the game defensively at shortstop.

 

Pedro Avila, RHP, San Diego Padres

Top 125 Rank: NR  |  Organizational Rank: NR

Ceiling: 50          Risk: High          Role Description: Mid-Rotation Starter (#4 SP)
Ht/Wt: 5’11” / 190 lbs.          B/T: R/R        Age (as of April 1, 2019): 22y, 2m
Spotlight

Would rank on many other team’s top 15, just a casualty of San Diego’s stacked system; muscular righty with mid-90s fastball, workable off-speed pitches. 

 

Ryan Helsley, RHP, St. Louis Cardinals

Top 125 Rank: NR  |  Organizational  Rank: 8

Ceiling: 50          Risk: High          Role Description: Mid-Rotation Starter (#4 SP)
Ht/Wt: 6’1” / 195 lbs.          B/T: R/R        Age (as of April 1, 2019): 24y, 8m
Spotlight

Power-armed starter could ride upper-90s fastball to a rotation role despite less-than-ideal size or off-speed consistency. 

 

Jason Martin, OF, Pittsburgh Pirates

Top 125 Rank: NR  |  Organizational Rank: 7

Ceiling: 45          Risk: Moderate          Role Description: Role Player
Ht/Wt: 5’9” / 185 lbs.          B/T: L/R        Age (as of April 1, 2019): 23y, 6m
Video | Report

High-floor player with plus instincts and well-rounded overall game. 

 

Bryan Reynolds, OF, Pittsburgh Pirates

Top 125 Rank: NR  |  Organizational Rank: 8

Ceiling: 45          Risk: Moderate          Role Description: Role Player
Ht/Wt: 6’3” / 205 lbs.          B/T: S/R        Age (as of April 1, 2019): 24y, 2m
Video #1 | Video #2 | Report | Spotlight

Switch-hitting outfielder with defensive versatility; will exceed our projections if early-season power spike and/or contact versus LHP holds up. 

 

Lane Thomas, OF, St. Louis Cardinals

Top 125 Rank: NR  |  Organizational  Rank: 8

Ceiling: 45          Risk: Moderate          Role Description: Role Player
Ht/Wt: 6’1” / 210 lbs.          B/T: R/R        Age (as of April 1, 2019): 23y, 7m
Video

Rocketed to the big leagues on the heels of a breakout 2018 season; high-floor type with good chance to finish a role player or low-end outfield regular. 

 

Josh Fuentes, 3B, Colorado Rockies

Top 125 Rank: NR  |  Organizational Rank: Rockies list coming soon!

Ceiling: 45          Risk: Moderate          Role Description: Role Player
Ht/Wt: 6’2” / 215 lbs.          B/T: R/R        Age (as of April 1, 2019): 26y, 1m

Former NDFA who has battled his way to the big leagues; hitting machine with versatility to move between corner spots. 

 

Taylor Clarke, RHP, Arizona Diamondbacks

Top 125 Rank: NR  |  Organizational Rank: 9

Ceiling: 45          Risk: High          Role Description: Swingman (#5 SP/Long Relief)
Ht/Wt: 6’4” / 200 lbs.          B/T: R/R        Age (as of April 1, 2019): 24y, 10m
Video #1 | Video #2 | Spotlight

Throws strikes with a deep arsenal of pitches; fastball runs up to 94-95 mph at best.