The Washington Nationals are promoting prized infield prospect Seaver King to Triple-A Rochester, a source confirmed to The Banner. He’s ranked No. 8 in the Nationals’ farm system, according to MLB Pipeline.

King’s promotion is a result of the work he put in to improve his swing decisions and cut down on his whiff rate after a turbulent first full season in the minors, when he posted a .631 OPS across two levels. Washington sent King to the Arizona Fall League last year to continue his development, and he cut his chase rate from 36% in the minors to 26% in the off-season league for prospects.

The 23-year-old has drastically improved this season, posting a .989 OPS at Double-A Harrisburg with 10 doubles and five homers in 35 games, resembling the hitter the Nationals were envisioning when they drafted King No. 10 overall in 2024 out of Wake Forest.

King has also cut his groundball rate to 40.6 percent, which has allowed his power to show more in games. He hit just six homers over 125 minor-league games in 2025.

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But it’s his improved patience at the plate that has been paramount to his success. This season, he’s drawn 22 walks over 35 games, just one fewer than he had over 80 games at Double-A last season.

King is also an adept base runner with positional versatility. He played third base, shortstop and center field in college.

He’s mostly played shortstop over his 172 games in the minors. But if the bat continues to develop the organization could see if he can handle a different position to fast-track him to the majors, where the Nationals have CJ Abrams at short.

Scouts believe in King’s bat-to-ball skills and see him as a stolen base threat (he has five steals so far in 2026 but has been caught six times).

“If he can make things work, King can be a solid-average hitter with fringe power or better,” Baseball America said before the 2026 season.

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King’s gains are a testament to his diligence, and also the job that new president of baseball operations Paul Toboni and his staff have done to improve the overall developmental infrastructure.

King looked overwhelmed in the minors last season. Now, he’s progressed to the point where a major league call-up isn’t out of the realm of possibility.

This story will be updated.