Could a Triple-A Prospect be the Marlins 2027 First Baseman?
Nov 1, 2026 3:34 AM

Kemp Alderman put up solid numbers in limited at-bats with Jacksonville; could he be an MLB starter next season

For years, the Miami Marlins have sought a reliable presence at first base. Kyle Stowers has blossomed as a batter, yet his status as a permanent fixture defensively remains uncertain. As Kemp Alderman continues his trajectory with Triple-A Jacksonville, the franchise may soon have a compelling candidate ready to step forward.

The central issue is whether Alderman can transcend a simple call-up and actively challenge for an everyday role in the starting lineup; He'd be moving to a position that he has played, but is occupied by a one-time Major League All-Star.

The former Ole Miss standout, taken in the second round of the 2023 MLB Draft, has already displayed raw power that translates well to the big leagues, elevating his status among Miami's primary hitting prospects.

Building on an impressive 2025 campaign, Alderman sustained his offensive impact at Jacksonville during the 2026 season. Over 105 contests, he compiled a .254 batting average alongside 19 home runs, 64 RBI, 10 stolen bases, and a .769 OPS.

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While these metrics are modest, they represent respectable progress for a hitter adapting to Triple-A pitching. His 19 round-trippers confirm that the signature slugging ability noted in his draft profile remains potent. Such positional flexibility offers substantial value to an organization attempting to solidify the position.

Stowers provides an intriguing skill set, but of the two, he seems more suited to play outfield. Despite flashes of offensive output, his development has been hindered by health setbacks as well. Turning 28, he is older than Alderman and still seeks to construct a complete, durable major league campaign.

In contrast, Alderman represents a younger option with high-upside power who could evolve into a regular fixture at first. And if he hits a ton in Spring Training, the Fish will find a spot for him in the field.

Some Obstacles Stand in His Way

High strikeout totals and a propensity to chase out-of-zone pitches persist as key areas for improvement. A .254 average and .335 on-base percentage through 2026 indicate that further refining his approach is necessary before making the leap.

Nevertheless, his elite exit velocities and defensive versatility pave a clear route toward South Florida. Miami has demonstrated a clear preference for rewarding prospects who earn their opportunities. Should Alderman refine his plate discipline while adapting smoothly to first base, he could force his way into the 2027 roster picture.

"Alderman retains his power-over-hit profile, and the Marlins are continuing to work on his swing decisions as he has a tendency to chase, which cuts into his walk rates, " his official MLB scouting report states. "[However] The right-handed slugger produces top-of-the-scale exit velocities and has done a better job of tapping into that strength lately while slightly decreasing his strikeout rate."

With Stowers still aiming to lock down his role, Alderman's promotion would spark a genuine positional battle.

The front office is under no pressure to rush a young hitter. However, if Alderman proves his bat belongs at the highest level, restricting him to a reserve spot makes little sense.

Miami holds a legitimate run-producer in its minor league pipeline. If his Triple-A performance transfers to the big leagues, Alderman could quickly alter manager Clayton McCullough's long-term plan at first base.

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