| W | L | ERA | G | GS | SV | IP | SO | WHIP | |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 2 | 3 | 4.08 | 24 | 0 | 4 | 28.2 | 27 | 1.40 |
| Career Minors | 4 | 4 | 3.93 | 48 | 0 | 7 | 66.1 | 79 | 1.25 |
| G | W-L | ERA | IP | SO | WHIP | |
|---|---|---|---|---|---|---|
| 2025 | 24 | 2-3 | 4.08 | 28.2 | 27 | 1.40 |
| Career Minors | 48 | 4-4 | 3.93 | 66.1 | 79 | 1.25 |
| Season | Tm | LG | L | W | L | ERA | G | GS | SV | IP | H | R | ER | HR | BB | SO | WHIP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2024 | Modesto Nuts | CAL | A | 0 | 0 | 2.45 | 4 | 0 | 0 | 3.2 | 2 | 1 | 1 | 0 | 5 | 4 | 1.91 |
| 2025 | 2 Teams | Minors | 4 | 4 | 4.02 | 44 | 0 | 7 | 62.2 | 64 | 34 | 28 | 10 | 12 | 75 | 1.21 | |
| 2025 | Everett AquaSox | NWL | A+ | 2 | 1 | 3.97 | 20 | 0 | 3 | 34.0 | 28 | 17 | 15 | 6 | 8 | 48 | 1.06 |
| 2025 | Arkansas Travelers | TEX | AA | 2 | 3 | 4.08 | 24 | 0 | 4 | 28.2 | 36 | 17 | 13 | 4 | 4 | 27 | 1.40 |
| Arkansas Travelers | TEX | AA | 2 | 3 | 4.08 | 24 | 0 | 4 | 28.2 | 36 | 17 | 13 | 4 | 4 | 27 | 1.40 | |
| Everett AquaSox | NWL | A+ | 2 | 1 | 3.97 | 20 | 0 | 3 | 34.0 | 28 | 17 | 15 | 6 | 8 | 48 | 1.06 | |
| Modesto Nuts | CAL | A | 0 | 0 | 2.45 | 4 | 0 | 0 | 3.2 | 2 | 1 | 1 | 0 | 5 | 4 | 1.91 | |
| Career Minors | 3 Teams | 4 | 4 | 3.93 | 48 | 0 | 7 | 66.1 | 66 | 35 | 29 | 10 | 17 | 79 | 1.25 |
Scouting grades: Fastball: 50 | Slider: 45 | Changeup: 55 | Control: 55 | Overall: 40
At first glance, Beilenson looked like the kind of senior sign taken in the top 10 rounds of the 2024 Draft to help pay for an over-slot signing; in this case, right-hander Ryan Sloan. A late bloomer who spent three years at Brown, then two at Duke, Beilenson got some attention for saving 12 games as a graduate student closer for the Blue Devils in 2024. The Mariners took him in Round 5 and signed him for just $25,000, more than $400,000 under slot. In his first full season of pro ball, he’s looking like more than a money-saver, pitching his way from the bullpen with High-A Everett to Double-A Arkansas.
Beilenson has found success as a professional reliever with three pitches and a feel for all of them. His fastball averages around 93 mph and tops out at 95, though he misses a fair amount of bats with it. He has a short, hard slider thrown at around 81 mph that can be effective, but his best pitch is his kick-changeup, thrown with almost split-like action to it.
Pitching only from the stretch, Beilenson has a compact arm action with some deception, making it hard for hitters to square up any of his offerings. And even though there’s some effort in his delivery, he’s proven to be a strike-throwing machine, one who could defy the odds and carve out a middle-relief role in the big leagues.
| Team | Date | Transaction |
|---|---|---|
|
06/24/2025 | RHP Charlie Beilenson assigned to Arkansas Travelers from Everett AquaSox. |
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04/01/2025 | RHP Charlie Beilenson assigned to Everett AquaSox from Modesto Nuts. |
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03/06/2025 | activated RHP Charlie Beilenson. |
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02/22/2025 | RHP Charlie Beilenson assigned to Seattle Mariners. |
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08/27/2024 | Modesto Nuts activated RHP Charlie Beilenson. |
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08/27/2024 | RHP Charlie Beilenson assigned to Modesto Nuts. |
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07/23/2024 | Seattle Mariners signed RHP Charlie Beilenson. |
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03/07/2024 | RHP Charlie Beilenson assigned to Duke Blue Devils. |
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05/24/2023 | College Workout activated RHP Charlie Beilenson. |
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05/24/2023 | College Workout activated RHP Charlie Beilenson. |
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04/02/2023 | RHP Charlie Beilenson assigned to Duke Blue Devils. |
