Follow the Prospects: Alex Clemmey, LHP

[Smithian]

Great job by Clemmey finishing with a couple strong starts. Saved a lot of my confidence in him.

[JCA-CrystalCity]

Great job by Clemmey finishing with a couple strong starts. Saved a lot of my confidence in him.

I will guess they will  assign him to AA next year with the idea to bump him to AAA if he has success.

[imref]

BBA names him as the Nats ML player of the year:
https://www.baseballamerica.com/stories/2025-minor-league-player-of-the-year-for-all-30-teams/

Not sure I agree over Glasser and Susana.

[nobleisthyname]

Age: 20
Team rank: 5
Current level: AA

September recap

W-L

|

IP

|

GS

|

ERA

|

FIP

|

SO

|

BB

|

K%

|

BB%

|

WHIP

0-0

|

17.2

|

3

|

2.04

|

4.08

|

15

|

5

|

21.7%

|

7.2%

|

0.91

Season recap (2 levels)

W-L

|

IP

|

GS

|

ERA

|

FIP

|

SO

|

BB

|

K%

|

BB%

|

WHIP

7-5

|

116.2

|

25

|

3.47

|

4.43

|

136

|

73

|

26.8%

|

14.4%

|

1.38

[imref]

Starting Saturday vs the Marlins.

[IanRubbish]

7 walks in 6.1 innings, averaging > 22 P/IP

[zimm_da_kid]

7 walks in 6.1 innings, averaging > 22 P/IP

his ideal outcome is an andrew miller type reliever

[Slateman]

6 walks in <4 innings

[imref]

Nice bounce back yesterday. 6IP, 1H, 0R, 2BB, 6Ks

[nobleisthyname]

Ranked the 19th best team prospect by FanGraphs.

Fastball

|

Slider

|

Changeup

|

Cutter

|

Command

|

Sits/Tops

|

FV

45/45

|

45/50

|

40/50

|

40/50

|

40/50

|

92-95/97

|

40

Clemmey, a lanky Rhode Island lefty, was drafted by Cleveland and signed away from a Vanderbilt commitment with a $2.3 million bonus, then was traded to Washington in the 2024 Lane Thomas deal. Though he has struggled with walks as a pro, Clemmey has actually increased his chances of being a big league starter (at least in my estimation) because he has been able to maintain major league-caliber stuff across 116.2 innings and is checking more visual scouting boxes than ever, as his delivery has been toned down and become more repeatable-looking. The version of Clemmey that seemed possible in high school — that this enormous guy with the violent delivery would fill out and throw 100 — probably isn’t on the table any more because he isn’t the most gifted, limber mover, and he’s fairly stiff in the hips. But he has an innings-eater’s size at a broad-shouldered 6-foot-6, and his underlying strike-throwing (the per-pitch strike rate of both his fastball and slider is 63% since the start of 2025, per Synergy Sports) is also better than a guy walking a career six per nine.

Clemmey sits 92-95 with rise/tail shape, more tail when he throws the two-seam version of his fastball. He touts an east/west attack that relies on him throwing his mid-80s gyro slider in the zone for strikes. His changeup tends to have long tail, and Clemmey has gone through stretches where he struggles to locate it, but at the start of 2026, he was faring better in this regard. None of his pitches are plus and his repertoire looks like that of a backend starter. It’d still be justifiable to project on it because of Clemmey’s combination of youth and size, but I’m not inclined toward that because the level of arm speed, explosion, and general athleticism here are pretty vanilla. Clemmey’s post-2027 40-man timeline has him on pace to traverse the upper minors during the next two seasons and then break in as a spot starter in 2028, when he’ll be 23. He’ll pitch at the back of someone’s rotation for as long as he can throw strikes

[nobleisthyname]

Age: 20
Team rank: 11
Current level: AA

April recap

W-L

|

IP

|

GS

|

ERA

|

FIP

|

SO

|

BB

|

K%

|

BB%

|

K%-BB%

|

WHIP

1-1

|

18.1

|

5

|

2.95

|

4.85

|

23

|

17

|

28.0%

|

20.7%

|

7.3%

|

1.42

[JCA-CrystalCity]

Limit the BBs and anything is possible

[imref]

Worst pro start in his career today. 7 ER in 1.1. 4BB, 4H. Had three more unearned as well.

[imref]

Great tonight. https://www.milb.com/app-firstpitch/gameday/rubberducks-vs-senators/2026/05/21/818681/final

[GataNats]

Otherworldly stuff.  Has to get control of the walks

[welch]

Spencer Nussbaum evaluated some of the Nats' top farmhands:

Alex Clemmey (LHP)
Current level (age): Double-A Harrisburg (20)
The Athletic’s rank: Preseason No. 10 in Nats’ Top 20
What he’s doing: Rediscovering his arm slot and his athleticism
What it means: He can become the player the Nats hoped he would be when they traded for him

Clemmey’s funky delivery was one of the primary reasons the Nationals acquired him from Cleveland two years ago. Over the next 18 months, though, there was some regression as his delivery became more static. He walked a ton of batters. His velocity plateaued. Now, he’s back.

Rather than forcing Clemmey’s funky delivery into becoming a picture-perfect, repeatable endeavor, the Nationals have helped him tap back into his athleticism. Pitchers at many of their levels — Cade Cavalli and Jake Irvin in the majors — work on their “athletic throwing” before games, helping them find range so their bodies can throw hard without metronomic mechanics.

It has helped a number of their arms add velocity across the minor leagues. For Clemmey, the athletic movement has as much to do with velocity as it does with command. It’s a small sample, but he has walked six batters over his last 17 1/3 frames. He walked 26 batters over his first 23 innings this year.

Also worth noting: The Nationals have recently installed a new set of high-speed GigaPitch cameras at each of their affiliates — when I was in Wilmington they had installed one the day before — which helps them capture better looks at pitchers’ grips and release points. This could also help Clemmey and others become more consistent.

[imref]

Very good tonight: 6.0 IP, 2H, 1ER, 2BB, 5Ks

[JCA-CrystalCity]

His last 3 outings (since 6/25):

17 IP, 3 R/ER, 8 BB / 13 K,19.7 K%, 12.1 BB%, .182 BABIP, 0.94 WHIP. 0  HR.

Looks like he's still walking a lot of guys, and his Ks have dropped down below average, but  has been getting the benefit of a nice run of avoiding homers and BABIP luck.

He had a nice stretch of 5 starts from 5/9 - 6/2 (27  IP, 2.77 ERA, 14 BB, 32 K, 2 HR, 28.6 K%, 12.5 BB%, .302 BABIP, 1.35 WHIP), then the Ks dropped while the BBs remained constant.