2015 Miami Marlins Top 15 prospects

Organization grades:

Hitting: C ... Pitching: C ... Top End Talent: C+ ... Depth: C- ... Overall: C


Minor League Affiliates:

Triple-A: New Orleans (PCL)
Double-A: Jacksonville (SL)
High-A: Jupiter (FSL)
Low-A: Greensboro (SAL)
Short-season: Batavia (NYPL)


1. Tyler Kolek (RHP) … 6-5, 260 … 19 … 2014 (1) HS, TX

Comments:  Strong and thick-bodied high schooler from Texas was the 2nd overall pick in the 2014 draft. Kolek is surprisingly mature physically for an 18-year-old, and possessed the best velocity in the draft class. Prior to the draft, Kolek was routinely clocked at 100 mph and maxed out at 102 mph. In the GCL his fastball was more frequently in the 92-94 mph range, though he was still able to hit 98 at times. Fastball also has good...

Almost!

You’re just a few clicks away from accessing this feature and hundreds more throughout the year that have a singular goal in mind: Winning your league. Subscribe to BaseballHQ.com here!

Already a subscriber? Sign in here

More From Org Reports

Our prospect lists for 2026 — Organization Reports for each of the 30 MLB clubs — are back this week! Here's a primer on what to expect for the next six weeks.
FREE
Dec 1 2025 3:01am
The Guardians have stockpiled a vast array of hitting prospects with a few expected to make a near-term impact.
Dec 15 2025 7:33am
An improving Nats system is led by #1 overall pick Eli Willits, but also features some pitchers and hitters of note for 2026 and beyond.
Dec 12 2025 8:50am
Led by Thomas White, the Marlins farm system is on the up with several potential fantasy contributors in their Top 15.
Dec 11 2025 3:01am
A few potential impact guys at the top (led by Adain Miller), but the Phillies system thins out quickly with very little current depth.
Dec 10 2025 3:01am
A low-key good draft has replenished a Braves system that has been down the past couple seasons.
Dec 9 2025 3:01am

Tools