Nationals promote Seaver King to Triple-A after hot Double-A start

Seaver King’s rise hit its first real checkpoint when the Nationals pushed the 23-year-old from Double-A Harrisburg to Triple-A Rochester, putting the former first-round pick one step from Washington with a bat that has been loud enough to force the move. He arrived in Rochester after opening the 2026 season with a .336/.427/.562 line, 5 home runs, 27 RBIs, 33 runs scored and 5 stolen bases in 137 at-bats, and he reached base in every game he played at Harrisburg.

That is the part that makes this promotion matter. Double-A proved King could rebound from the rough start he had in his first Double-A assignment last year, but Rochester is where the Nationals will find out whether the surge is real against older pitching and less forgiving game plans. King was MLB Pipeline’s No. 7 Nationals prospect entering the season, and this move shows how quickly that stock can turn into a major-league conversation when the production matches the pedigree.

The résumé underneath it is still the kind front offices build around. Washington took King 10th overall in the 2024 MLB Draft out of Wake Forest, where he hit .308/.377/.577 with 16 homers in 60 games. Before that, he was a standout at Wingate, where MLB prospect coverage noted a 47-game hitting streak between the 2022 and 2023 seasons. Baseball America listed his signing bonus at $5.15 million, and its grade on his tools reflected the kind of upside that made him a fast mover once the bat started to catch up.

Rochester also gives the Nationals a cleaner read on the rest of his game. King has been primarily a shortstop in pro ball, though he has also seen some work at second base this year, and the Red Wings will test whether his range and arm strength can stay sharp while the bat keeps carrying the profile. He was listed on the Rochester roster as a right-handed hitter and thrower, and the club’s next game was set for May 19 at Worcester.

For Washington, this is no longer a distant development project. King’s May surge turned into a Triple-A assignment, and Rochester will decide how soon the Nationals have to start treating him like a major-league option rather than just a high-end prospect.