P | Bats/Throws: R/L | 6' 4" 210 lbs | Age: 21
Draft: 2025 | Rd. CB-B, No. 71, Kansas City Royals | Texas A&M
MLB Pipeline Rank
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Scouting Report

2025

Scouting grades: Fastball: 50 | Slider: 55 | Changeup: 45 | Control: 55 | Overall: 40

Lamkin was Texas' best high school southpaw in 2022, when he threw a seven-inning, 21-strikeout no-hitter and drew some Kris Bubic comparisons. But he was unsignable away from his Texas A&M commitment. He became an immediate contributor for the Aggies and dominated in his first two outings at the 2024 College World Series before running out of gas in a championship-game loss to Tennessee. Slightly improved stuff and better control made him one of the best college pitchability lefty options in this year's Draft, when he went to the Royals with the 71st overall pick.

Lamkin works with a 91-93 mph fastball that tops out at 95, deceiving hitters thanks to his funky arm action and the extension that he creates. His best offering is a solid low-80s slider with more depth than horizontal action. His low-80s changeup doesn't have much life and isn't particularly effective against right-handers, whom he keeps in check by running heaters in on their hands.

While Lamkin doesn’t have the smoothest mechanics, they help him hide the ball well. His strike-throwing improved throughout his time in College Station, though his control stands out more than his command. His floor also is more notable than his ceiling, as he's a safe bet to become a back-of-the-rotation starter.


Draft

Video scouting report »

Scouting grades: Fastball: 50 | Slider: 55 | Changeup: 45 | Control: 55 | Overall: 45

Lamkin was Texas' best high school southpaw in 2022, when he threw a seven-inning, 21-strikeout no-hitter and drew some Kris Bubic comparisons, but he was unsignable away from his Texas A&M commitment. He became an immediate contributor for the Aggies and dominated in his first two outing at the 2024 College World Series before running out of gas in a championship-game loss to Tennessee. Slightly improved stuff and better control have made him one of the best college pitchability lefty options in this year's Draft.

Lamkin works with a 91-93 mph fastball that tops out at 95, deceiving hitters thanks to his funky arm action and the extension that he creates. His best offering is a solid low-80s slider with more depth than horizontal action. His low-80s changeup doesn't have much life and isn't particularly effective against right-handers, whom he keeps in check by running his heater in on their hands.

While Lamkin doesn’t have the smoothest mechanics, they help him hide the ball well. His strike throwing has improved throughout his time in College Station, though his control stands out more than his command. His floor also is more notable than his ceiling, as he's a safe bet to become a back-of-the-rotation starter.


Transactions

Team Date Transaction
08/04/2025 ACL Royals activated LHP Justin Lamkin.
07/21/2025 Kansas City Royals signed LHP Justin Lamkin.
07/21/2025 LHP Justin Lamkin assigned to ACL Royals.
06/03/2025 LHP Justin Lamkin assigned to College Workout.
02/21/2025 LHP Justin Lamkin assigned to Texas A&M Aggies.
02/20/2024 LHP Justin Lamkin assigned to Texas A&M Aggies.
02/24/2023 LHP Justin Lamkin assigned to Texas A&M Aggies.
06/11/2022 LHP Justin Lamkin and assigned to College Workout.
09/23/2021 LHP Justin Lamkin and assigned to National.