Kemp Alderman: Rising Marlins Prospect Poised for MLB Debut

Miami Marlins prospect Kemp Alderman is quickly ascending through the minor leagues, showcasing the power and potential that made him a second-round pick in the 2023 MLB draft. The 23-year-old outfielder is projected to make his Major League Baseball debut in mid-2026, potentially filling a corner outfield role for the Marlins.

Early Career and Draft

Alderman, born August 20, 2002, in Decatur, Mississippi, starred at Newton County Academy, excelling in baseball, basketball, and football. He committed to play college baseball at Ole Miss [1]. After a successful freshman season, he spent the summer with the Bethesda Big Train, leading the Cal Ripken Collegiate Baseball League with eight home runs and 47 RBIs [5]. His sophomore year at Ole Miss saw him become the primary designated hitter, hitting .286 with 11 home runs and 45 RBIs, contributing to the Rebels’ 2022 College World Series championship [6]. He continued his collegiate success, earning the C Spire Ferriss Trophy as Mississippi’s top collegiate baseball player after batting .376 with 19 home runs and 61 RBIs in his junior season [8].

Professional Journey

The Miami Marlins selected Alderman with the 47th overall pick in the 2023 MLB draft [9], signing him on July 21, 2023, for a $1.4 million bonus [10]. He began his professional career with the Jupiter Hammerheads, hitting .205 with one home run and 15 RBIs in 34 games [3].

Breakout Performance and Rising Stock

Alderman experienced a significant breakout in 2024, playing for multiple minor league teams and demonstrating impressive power. In 77 minor league games, he hit 22 home runs and stole 22 bases, becoming one of only 16 minor leaguers to achieve a 20-20 season [2]. He also showcased exceptional exit velocities, with one batted ball at the Triple-A level registering 114.4 mph [2]. His performance led to a substantial rise in prospect rankings, culminating in a No. 8 ranking on Fish On First’s Top 30 Marlins prospects list by October 2025 [2].

Arizona Fall League and Personal Life

Alderman participated in the 2024 Arizona Fall League, continuing to refine his skills and showcase his offensive capabilities. Notably, he returned to the AFL immediately after his wedding and honeymoon in Antigua [1]. He quickly made an impact, hitting a solo home run in his first game, demonstrating his affinity for hitting in the league’s favorable conditions [1].

Future Outlook

As of January 2026, Alderman is ranked as the No. 10 prospect in the Marlins organization [2]. He is expected to receive a non-roster invite to big league spring training and is on track to make his MLB debut in mid-2026, potentially at either corner outfield position [2]. While his defense in right field is still developing, his strong arm provides value. He has overcome a hamate injury sustained in 2024 [2].

Awards and Accolades

• 2024 Fall Stars Game selection [2]
• 2025 Southern League Player of the Week (x3) [2]
• 2025 Southern League All-Star [2]
• 2025 Marlins Minor League Player of the Year [2]