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Jackson Kent pitches through trouble, earns a standing ovation in his Nationals debut

The 23-year-old lefty faced his hometown Cubs at Nationals Park on Wednesday night, and even in a 12-6 loss, he left the mound to applause from both dugouts' fan bases. It was the kind of debut that tells you something about a prospect.

Jackson Kent pitches through trouble, earns a standing ovation in his Nationals debut

There was a moment on Wednesday night at Nationals Park when the noise didn't quite make sense. Jackson Kent had just been pulled from the game - five walks, a laboring first inning, 78 pitches thrown with only 37 landing for strikes - and yet the crowd stood up. Both sides of it. Cubs and Nationals fans alike rose to give him a standing ovation as he walked off the mound.

That's what a debut looks like when the arm is real, even if the night isn't.

Kent, ranked as the Nationals' No. 8 prospect by MLB Pipeline, started against Chicago on August 12 - the team he grew up watching. He attended Lake Park High School in Roselle, Illinois, around 30 miles from Wrigley Field. That detail alone made Wednesday night stranger than most big-league debuts. Kent wasn't just facing his first major-league lineup. He was facing the franchise he cheered for as a kid.

Chicago feasts on left-handed pitching. Entering Wednesday, the Cubs had posted the highest on-base percentage (.357), slugging percentage (.449) and weighted runs created plus (124) against lefties in the majors. For a 23-year-old making his first start, that matchup is about as rough a draw as the schedule can produce.

He did not sail through it. Kent allowed three runs in four-plus innings, with three hits and five walks, in Washington's 12-6 loss to the Cubs. Only 37 of his 78 pitches were strikes. Pitching coach Simon Mathews visited the mound in the first after consecutive walks. It was bumpy.

But the strikeouts were real. Kent's first big-league batter was Pete Crow-Armstrong, who entered with a .939 OPS against southpaws this season. Five pitches later, Kent had recorded his first career strikeout, capped with a called third strike on a 95.8 mph fastball. He ended the night with six punchouts total - more strikeouts than base runners allowed via hits.

He was pulled after allowing a single, a walk and an RBI double to Crow-Armstrong in the fifth. The deficit was already steep. Jake Bird came on and gave up a three-run homer to Alex Bregman to push the Cubs to a 4-1 lead, and while the Nationals answered with some timely baserunning, left-hander Tom Cosgrove struggled as Chicago surged in a five-run sixth.

Kent's own read on the performance was blunt. "I really didn't have my best stuff, I think probably had my C stuff," he said. "So I really don't need to change anything. It's just getting better from here." Kent went 9-4 with a 3.72 ERA in 20 starts between Double-A Harrisburg and Triple-A Rochester this season. He had 105 strikeouts in 94⅓ minor league innings before Washington called him up.

He also did not pretend the moment was ordinary. "What I got told here was it was just another game," Kent said. "It's what I've been doing my whole life. Don't need to change anything. It was cool to play against the hometown team that I grew up watching and going to games."

Manager Blake Butera had called it before the first pitch. "There will be nerves," Butera said. "There will be excitement, of course. There's no way to hide that. I want him to go out there and make the most of it. You only get one debut and you're lucky to have it because a lot of people want it."

Why this matters for Washington's rebuild

The Nationals are not going to the playoffs this year. That much became clear when the front office dealt away top offensive talent before the trade deadline, adding a haul of predominantly young players in exchange - two top offensive pieces and their best starting pitcher, gone over nine days. Of the 10 players acquired, nine are pitchers and six are still developing toward their major-league debuts.

Kent is part of that calculus. The Nationals needed to clear a roster spot for him, which meant designating veteran right-hander Miles Mikolas for assignment to call up the No. 8 prospect Jackson Kent. Mikolas had reached 10 years of big-league service time. Kent is 23. The math on that transaction is not subtle.

Kent works with a four-seam fastball that sits 92-96 mph with cut to it, paired with a low-to-mid-80s changeup, a curveball and a slider. His four-seamer at Rochester had a whiff rate of 28.3 percent. Both his changeup and curveball topped 40 percent whiff rates. His slider checked in at 28.8 percent. Against the best left-handed-pitching lineup in the majors, he posted six strikeouts. In four-plus innings. With C stuff, he said.

Washington's front office has been running prospects out to Nationals Park in waves since the deadline, auditioning the system in real time. Since the trade deadline, the Nationals have given prospects a taste of the major leagues as they evaluate the talent in their system. Kent is the latest. There will be more starts, and they should get cleaner as August turns to September and the roster opens up further.

Wednesday's crowd seemed to understand what it was watching. As Kent left the mound, both Nationals and Cubs fans rose to give him a standing ovation. The final score was 12-6. Didn't seem to matter much to anyone in that moment.

Sources