The Moneyline MLB 30 in '30 series offers projections for the top players at each position for the 2030 season. In this installment, the focus shifts to second basemen. Given the frequent transition of shortstop prospects to second base, projecting future stars at the position poses unique challenges. One notable example is Jackson Holliday, who was initially drafted as a shortstop but has since made the move to second base at the Major League level. The evaluation incorporates both offensive and defensive capabilities, resulting in a highly subjective assembly based on projections.

Before delving into the rankings of the top second basemen anticipated for 2030, it is important to recognize several current players who may no longer be contenders for stardom due to age or potential position changes. The following veterans are deemed less likely to feature in the Top 30 by that time: Ozzie Albies (ATL, age 33), Jose Altuve (HOU, age 40), Jake Cronenworth (SD, age 36), Jose Iglesias (SD, age 40), Brandon Lowe (TB, age 35), Ketel Marte (ARI, age 36), Jeff McNeil (NYM, age 38), and Marcus Semien (TEX, age 39).

The rankings commence with Termarr Johnson of the Pittsburgh Pirates, projected to be 26 years old in 2030. Selected as the fourth overall pick in the 2022 draft, Johnson has yet to fully reach his potential in the minor leagues, although he possesses a highly regarded 70-grade hit tool. Last season, he recorded a .237/.366/.386 batting line with 35 extra-base hits in 124 games across High-A and Double-A. Max Muncy of the Las Vegas Athletics follows, expected to be 27 in 2030. After being drafted 25th overall in 2021, he struggled initially but improved significantly with an .866 OPS at Triple-A last season. Despite a challenging stint in 2025, he retains everyday player potential.