Nationals Prospect Weekly: Hartle's Harrisburg debut dazzles, Willits keeps drawing walks
By Marcus Bailey ·
New Blood, Instant Impact: Josh Hartle's Harrisburg Debut
The Nationals' deadline haul from Cleveland included a few interesting arms, but none made a faster impression than Josh Hartle. Acquired August 3 in the Foster Griffin trade, Hartle was in a Harrisburg uniform two days later and delivered 5.1 innings of three-hit, one-run ball with seven strikeouts and no walks. Such a debut would turn heads under any circumstances; in context of Hartle's broader body of work, it confirms that the left-hander arrived with something real. Over his last 30 days spanning both organizations, he has posted a 0.83 ERA across 21.2 innings with 26 strikeouts, a zero-homer allowed mark, and a WHIP of 0.60. The stuff profile is not going to blow anybody away: a four-seam that sits 92-93, a 55-grade changeup, and a pair of average breaking balls. But he commands everything, repeats his delivery, and executes a game plan with pitchability that plays up in a rotation. He carried a 3.86 ERA over 93.1 innings in Akron before the deal; the Eastern League just changed cities for him.
The profile projects as a back-end starter, someone who can eat innings, keep a lineup from doing damage twice through, and give a big-league staff a dependable number four or five. The changeup is the carrying pitch against right-handed bats, and when his fastball command is on, he can work both sides of the plate with enough conviction to keep hitters from sitting on anything. His road to Rochester, and eventually Washington, runs through continued strike-throwing and proving that upper-minors hitters cannot simply wait him out in fastball counts. One dominant start in a new uniform does not close that case, but it was the best possible opening argument.
Patience Is the Product: Eli Willits Redefines the A+ Plate Appearance
Eli Willits (A+, SS, Rank: 1) walked seven times in 22 plate appearances last week, drove in five, and struck out once. He finished the stretch with two doubles and a triple, zero home runs, and a line that makes a pitcher feel like the whole at-bat was a trap. Since arriving at Wilmington, Willits is slashing .231/.419/.441 across 191 plate appearances with 43 walks against just 29 strikeouts and 18 steals. His 47-steal combined season between Fredericksburg and Wilmington (18 SB at A+, 29 at A) is already the signature of a player who weaponizes every skill he has. The hit tool grades at 60 and it shows in the contact quality; the 60 speed reads in the stolen-base column. He is 18 years old.
The conversation around Willits has always been about whether the power eventually arrives to complete an all-star profile, and the honest answer right now is: it does not need to yet. He posts on-base percentages in the .420 range because he recognizes pitches at a level most teenagers never reach at complex ball, let alone High-A. The projection calls for a potential all-star shortstop with a path to 15-20 home-run pop as the frame fills; for now, he is doing what the developmental plan asks. The main checkpoints remain tightening his approach against elite offspeed and continuing to polish his internal clock at short, but nothing from this week suggested either is an urgent problem. He looks like the number-one prospect in this system for good reason.
Quick Hits
Yohandy Morales (AAA, 3B, Rank: 23) · came off the 7-day IL on August 7 and wasted no time: 3-for-8 with 2 home runs and 3 RBI in his first two games back, including an opposite-field two-run shot in Rochester's 9-0 rout of Scranton. He had been out since July 17, so the rust was not a factor. On the season, Morales is at .296/.373/.553 with 23 home runs across 373 plate appearances at Triple-A, a significant step forward from the .249/.330/.401 line he posted at the same level in 2025. The power is plus and it is translating; an MLB call remains a matter of roster timing rather than readiness.
Coy James (A, SS, Rank: 20) · drove in 6 runs across 23 plate appearances last week, going 6-for-18 with two home runs, a double, and five walks against three strikeouts. Over his last 30 days he is slashing .267/.341/.533 with 6 home runs and 16 RBI in 88 plate appearances. His season home run total sits at 17 with 27 stolen bases; the 50/50 grade on both the hit and power tools looks conservative based on current output. He projects toward second base or a utility role long term due to athleticism concerns, but the bat has been louder than the scouting report suggested.
Cristhian Vaquero (A, OF, Rank: 43) · went 5-for-11 with 2 home runs and 3 RBI in 13 plate appearances last week, his most productive stretch since being sent back to Fredericksburg after struggling at Wilmington. Across his last 30 days at the A level, he is hitting at a .268/.302/.488 clip with 2 home runs and 3 doubles in 43 plate appearances. The split between his two levels this year is stark: .375/.423/.750 at Fredericksburg versus .229/.309/.229 at Wilmington. He is a 60 athlete and 60 runner whose hit tool grades at 45; the gap between those numbers explains the story. Speed and center-field defense will carry him; the bat has to close that gap at High-A before the up-and-down projection upgrades.
Cayden Wallace (AAA, 3B, Rank: 39) · had a strong week at the plate, going 10-for-28 with a homer and 5 RBI, including a 2-for-5 game on August 9. The season has been a tale of two levels: he posted an .862 OPS across 318 plate appearances at Double-A Harrisburg before the promotion to Rochester, where he has hit just .259/.289/.388 in 90 plate appearances. The zone discipline that carried him through Double-A has not translated up; he has walked just 4 times at Triple-A compared to 23 in nearly four times as many plate appearances in Harrisburg. He projects as a second-division regular at best, and the gap between his Double-A production and his AAA numbers is the thing to watch the rest of the season.
Luke Dickerson (A+, SS, Rank: 10) · earned his promotion to Wilmington on August 8 after posting a .233/.425/.500 line over his last 30 days at Fredericksburg, with 4 home runs, 20 walks, and 22 strikeouts in 80 plate appearances. His full season at Low-A shows 91 walks in 431 plate appearances; the walk rate is the most reliable part of his profile right now. He has a 60 speed grade and enough athleticism to stick somewhere on the dirt, but a fringe arm will push him off short. The bat's next test is whether the patience holds at High-A against pitchers who actually attack the zone.
Jack Cebert (AA, RHP, Rank: 36) · acquired in the Luis Garcia trade with New York, has not yet taken the mound for Harrisburg after being assigned on August 3. He combined for a 0.98 ERA in 18.1 innings at Hudson Valley before moving to Double-A Somerset, where he posted a 4.90 ERA over 64.1 innings. He is worth monitoring once he gets into game action with the Senators.
Jackson Kent (AAA, LHP, Rank: 35) · struck out 5 over 5.2 innings of one-run ball last week, his second consecutive quality start at Rochester. His combined ERA sits at 3.72 through 94.1 innings this season, and over the last 30 days he has punched out 23 across 20.2 innings with a 3.05 ERA. The changeup is the carrying pitch and it has kept his strikeout rate north of 10 per nine at every level. A #4 or #5 starter outcome seems increasingly plausible if the command holds against big-league lineups; he is running out of minor-league levels to prove it at.
Sam Petersen (AAA, OF, Rank: 30) · made his Triple-A debut last week after being promoted from Harrisburg on August 4, going 5-for-21 at his new level with a homer and 5 RBI in 23 plate appearances. The walk rate has been his signature all year: 61 free passes in 443 combined plate appearances, with a .387 OBP at Double-A before the promotion. He has a 55 speed grade and 30 stolen bases between the two levels this season. He profiles as a bench outfielder who can handle center and get on base; whether he can hit enough to matter against AAA arms is what this call-up is designed to find out.
Miguel Sime Jr. (A+, RHP, Rank: 19) · went 3.1 innings with 7 strikeouts, 3 walks, and 1 earned run last week, continuing a stretch at Wilmington that has produced a 1.72 ERA and 27 strikeouts over his last four starts covering 15.2 innings. He has allowed just 6 hits in that span. The 96-99 mph fastball and a flashing 55-grade slider are the tools that have hitters in trouble; the 40-grade command is the ceiling limiter. He has walked 30 batters in 35 innings at High-A this year, so the upside is real and the risk is equally obvious. I would take the over on his setup-reliever projection if that slider keeps developing.
Devin Fitz-Gerald (AA, SS, Rank: 15) · returned from the IL on August 5 and went 0-for-11 in his first three games back. That is a brutal re-entry, but the context matters: he missed about 10 days and came back cold. His split between levels this year is concerning regardless, having hit .267/.373/.530 with 12 home runs at Wilmington before a very rough .179/.248/.225 stretch in 165 plate appearances at Double-A Harrisburg. The Wilmington numbers showed a potential everyday-type; the Harrisburg numbers raise real questions about whether the approach holds against more advanced arms.
Chris Hacopian (A+, 2B, Rank: 5) · received his first promotion to High-A on August 8, assigned to Wilmington after posting strong numbers at the complex level. He is a key positional prospect in the system and his performance at Wilmington will be the most important developmental data point for him the rest of this season.
Samil Serrano (RK, OF, Rank: 40) · went 3-for-10 with a double, 3 walks, and 2 RBI in 13 plate appearances last week. The 17-year-old left-handed outfielder is hitting .296/.418/.512 in 153 plate appearances at the complex level this season with a 55 field grade and a clean, repeatable swing that already draws attention. He is a long way from making any projections stick, but the early returns at this age and level are genuinely encouraging.