2025 MLB Draft Profile: Seth Hernandez

[Hector Rodriguez]

The Miami Marlins have shown they are willing to draft high school pitching prospects early in the draft. Could they do the same if RHP Seth Hernandez is available? 

Overview

Position: RHP

Height: 6’4″

Weight: 190 pounds

School: Corona HS (CA)

Commitment: Vanderbilt

Seth Hernandez is a 6’4”, 190-pound right-handed pitcher who plays at Corona High School in Corona, California. Hernandez is one of the best pitching prospects in the 2025 draft class and he’s considered the top high school pitching prospect available. On Perfect Game, Hernandez is the third-ranked prospect and the top-ranked right-handed pitcher in the Class of 2025. He’s also the #1 overall prospect in California.

Seth Hernandez is one of three prep prospects from Corona High School (Billy Carlson and Brady Ebel) projected to be selected in the first round of the 2025 MLB Draft. Hernandez has dominated on the mound in the summer circuit against all of the best prep hitting prospects in the country. He is signed to play college baseball at Vanderbilt University.

On the mound, Hernandez has a four-pitch mix, including his fastball, curveball, slider, and changeup. His fastball sits 96-98 mph and was clocked at 100 mph last in the summer. His fastball has an above-average spin rate and explodes out of his hand. The changeup might be Hernandez’s best pitch and it’s one of the best offspeed pitches in this draft.

Hernandez has a true 12-6 breaking ball and a sharp slider, and both pitches possess spin rates near 2,700 RPMs. Hernandez has good control and fills up the strike zone but will need to fine-tune the command on his secondary pitches. At 6’4” and 190 pounds, Hernandez has the ideal pitching frame with room to fill it out with more muscle.

 

Strengths

• Power fastball
• Elite changeup
• Above-average spin rate on all pitches
• Pounds the strike zone
• Ideal pitching frame

 

Weaknesses

• Needs to improve mechanics while throwing breaking pitches
• Needs to improve command of secondary pitches

 

Pro Comparison: Jack Flaherty

Projection: Top 10 pick

 

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Bottom Line

Seth Hernandez is a blue-chip prospect. The Golden State native has a high floor and the upside to become a frontline-type pitcher in the pros. He’s a very talented pitcher with an excellent work ethic and has an advanced game plan on the mound for his age.

The Marlins will have the seventh overall pick in the 2025 MLB Draft and they have shown the willingness to draft high school pitching prospects early. I believe Hernandez could be Miami’s guy if he’s available at #7.

 

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