Johnny King cementing himself as the top pitching prospect in the Blue Jays' system

Toronto Blue Jays pitching prospect Johnny King is on quite a run to begin his season with the Vancouver Canadians at the High-A level. He allowed just one run over five innings with five strikeouts in his most recent outing against the Spokane Indians. It was his eighth consecutive start allowing one run or less, a stretch during which he’s held opposing hitters to a minuscule .147 batting average.

King’s previous outing was even better as he held the Everett AquaSox scoreless for five innings while punching out eight batters. The 19-year-old appears to be fully stretched out now after a gradual buildup throughout the month of April.

Johnny King could be the Toronto Blue Jays' next great homegrown pitcher

The Toronto Blue Jays selected King 95th overall in the 2024 MLB Draft. He’s now the organization's top-ranked minor league pitcher with Trey Yesavage graduated to the big squad. He was drafted as a high-upside project at just 17-years-old with a 60-grade fastball, above-average curveball, and developing changeup. He’s already shown he can hit 96 mph on the radar gun from a three-quarters arm angle. 

This year’s success is a continuation of what King did in 2025. He dominated across 24 innings in the Florida Complex League, then recorded a 3.35 ERA with 64 strikeouts in 37.2 innings at the Single-A level after being promoted to the Dunedin Blue Jays. 

King’s command remains a work in progress, however, as he walked three batters in that most recent outing against Spokane. It was the third time he’s reached that mark in his eight starts in 2026, despite how infrequently he’s been scored against. He also walked a staggering 30 batters in those innings at High-A last year, which equated to an untenable 7.17 BB/9. Handing out that many free passes is a recipe for trouble.

Fortunately for King, the Blue Jays have an excellent track record for helping pitchers improve their command. Their coaches turned Robbie Ray into a Cy Young Award winner, and appear to have helped Dylan Cease become more efficient despite a reversion to old habits in his most recent outing against the New York Yankees. 

King appears to have the kind of overpowering stuff that can’t be taught. He’ll grow as a pitcher as he continues to progress through the minor leagues, yet he’s already shown a propensity for doing what pitchers need to do best: keep runs off the board. 

Teams will likely be asking the Blue Jays about King if they are in a position to be a buyer at this year's trade deadline. While the return packages will likely be quite exciting, the front office should probably think twice about letting King go—he looks truly special.

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