Guardians promote top prospect Justin Campbell to Triple-A Columbus

Justin Campbell reached Columbus after a 15-start run that put him among Cleveland’s most watched arms, and Triple-A now becomes the place where the Guardians will see whether his stuff plays the same way against older hitters. The 25-year-old right-hander arrived on the Columbus Clippers roster after going 1-3 with a 2.61 ERA, 66 strikeouts and a 1.16 WHIP across 51 2/3 innings in 2026.

Campbell’s climb has been steady since Cleveland made him the 37th overall pick in the 2022 draft out of Oklahoma State. He is listed at 6-foot-5 and 227 pounds, born Feb. 14, 2001, in West Hills, California, and MLB Pipeline ranks him No. 21 in the Guardians system. His profile has long carried more than simple arm strength, too: MLB.com noted that he was a finalist for the 2021 John Olerud Award, which goes to NCAA Division I’s best two-way player.

The trip to Columbus was supposed to begin Wednesday at Huntington Park, but Campbell had to leave before he threw a pitch in what would have been his Triple-A debut. Instead, the Clippers got the next chapter a day later, with Campbell now active on the roster and positioned for the first real test of his command and pitch mix at the level closest to Cleveland.

That matters because Columbus is where the Guardians can measure whether Campbell’s strikeout rate holds against more experienced hitters who are less likely to chase early mistakes. His line in 2026, built across three minor league teams, suggests a pitcher already forcing the issue: more than 11 strikeouts per nine innings, a sub-3.00 ERA and enough durability to cover 15 starts before the promotion.

Campbell’s arrival also came in the middle of a broader Cleveland pitching shuffle. Braylon Doughty moved up from High-A Lake County to Double-A Akron at the same time, giving the Guardians another internal adjustment in a system that keeps pushing arms upward. Doughty, the 20-year-old right-hander drafted 36th overall in 2024 out of Chaparral High School in Temecula, California, had gone 3-3 with a 3.02 ERA in 14 starts for Lake County before his move.

With Columbus already juggling several pitchers on the 40-man roster, Campbell’s first consistent run in Triple-A will be watched as more than a box to check. Strong results there would put his name quickly into the next Guardians conversation, and his path from Oklahoma State to Columbus has now reached the stage where every start carries direct major-league relevance.