Aiden Stillman, LHP, Trinity Prep (FL) Emerges as Top Draft Prospect for 2025
Aiden Stillman is one of the most electric pitching prospects in the 2025 MLB Draft class. The Trinity Prep (Winter Park, FL) southpaw has been turning heads with his impressive velocity, recently reaching 96 mph on his fastball during spring outings. Stillman stands 6’3″ and weighs 195 pounds, combining ideal size with a fast arm that has major league scouts filling the bleachers at Saints games.
What separates Stillman from other high school arms isn’t just the velocity—it’s his ability to complement that heater with a low 80’s slider that shows significant potential. The big, loose lefty has the frame to add more strength, suggesting his already impressive arsenal could become even more formidable as he continues to develop. Though he’s also contributed as a basketball player at Trinity Prep (playing center and power forward), his future clearly lies on the diamond, where he’s positioned himself as a potential early-round selection in next year’s draft.
| Player Profile: Aiden Stillman | |
|---|---|
| Height | 6’3″ |
| Weight | 195 lbs |
| Bats/Throws | R/L |
| Class | 2025 |
| Top Velocity | 96 mph |
| Secondary | 80+ mph Slider |
| Travel Team | Winter Park Diamond Dawgs |
Contents
Background and Early Career
Aiden Stillman has emerged as one of the top left-handed pitching prospects in the 2025 MLB Draft class. His development at Trinity Prep in Winter Park, Florida has showcased his natural talent and steady progression as a power pitcher with professional potential.
High School Performance at Trinity Prep
At Trinity Prep, Stillman has established himself as a dominant force on the mound. The senior ranks 63rd nationally in strikeouts, demonstrating his ability to overwhelm hitters at the high school level. His strikeout numbers are particularly impressive, as he’s recorded 77 batters struck out, placing him among the top performers in Florida.
Stillman doesn’t limit himself to baseball, though. He’s a multi-sport athlete who also plays basketball for the Saints, wearing #13 on the hardwood and #12 for baseball. This athletic versatility has helped him develop coordination and competitive instincts that translate well to the mound.
| Stillman’s Profile | Details |
|---|---|
| Height/Weight | 6’3″ / 190 lbs |
| Bats/Throws | Right/Left |
| Class Year | Senior (2025) |
| College Commitment | Virginia |
Development as a Left-Handed Pitcher
Stillman’s development as a southpaw has been remarkable. He’s grown into a “big and loose” left-hander with a fast arm that can touch 95 mph. His repertoire includes a low 80s slider that shows significant potential as he continues to add strength.
His draft stock continues to rise, with evaluators ranking him #78 among 2025 draft prospects. Scouts have graded his three-pitch mix — fastball, slider, and changeup — all at 50, suggesting league-average potential at the professional level.
Born in December 2006, Stillman still has room to develop physically. His frame suggests there might be more velocity to come, which could significantly boost his draft position. With his commitment to Virginia, he has a strong collegiate option should he choose to develop further before entering professional baseball.
Scouting Report
Aiden Stillman has emerged as one of the most intriguing left-handed pitching prospects in the 2025 MLB Draft class. His combination of size, velocity, and developing secondary pitches has scouts paying close attention to the Virginia commit.
Pitching Mechanics and Arsenal
Stillman’s 6’3″, 190-pound frame gives him a projectable body that scouts love. His delivery features a loose, easy arm action that generates impressive velocity without appearing to max out effort. The southpaw works from a three-quarter arm slot that creates natural movement on his pitches.
His mechanics show the hallmarks of a pitcher who understands leverage. Stillman maintains good balance throughout his delivery and shows consistent timing in his arm action. His follow-through is clean and puts him in solid fielding position.
What stands out most is how easily the ball jumps from his hand. There’s still room to add strength to his frame, suggesting his already impressive arsenal could tick up even further as he physically matures.
Velocity and Command
Stillman’s fastball has become a true weapon, reaching up to 96 mph this spring. The pitch typically sits 92-95 mph with occasional arm-side run that makes it difficult for hitters to square up. His ability to maintain velocity deep into outings speaks to his conditioning.
Command remains a work in progress, though Stillman has shown improvement in controlling the strike zone. His walk rates have decreased this season while his strikeout numbers have soared—he’s struck out 77 batters so far, ranking him 63rd nationally.
His control profile projects as above-average at the professional level, assuming normal development. Stillman can work both sides of the plate with his fastball when locked in.
Secondary Pitches: Slider and Changeup
Stillman’s slider is his most advanced secondary offering, sitting in the low 80s with tight break. The pitch has proven effective against both right and left-handed hitters, showing true swing-and-miss potential when located properly.
Scouting evaluations grade both his slider and changeup as 50 on the 20-80 scouting scale, indicating average major league potential. However, the slider flashes plus potential in certain outings.
His changeup continues developing and shows good arm-side fade when executed properly. The pitch sits 8-10 mph slower than his fastball with similar arm action, creating deception that keeps hitters off balance.
| Pitch Type | Velocity | Grade (20-80 Scale) |
|---|---|---|
| Fastball | 92-96 mph | 50 |
| Slider | 80-83 mph | 50 |
| Changeup | 82-85 mph | 50 |
Recruitment and Commitment
Aiden Stillman’s pitching prowess has made him a coveted prospect in collegiate baseball circles. His commitment to Virginia represents a significant achievement in his young career, validating his development as one of the nation’s premier left-handed pitching talents.
University of Virginia Baseball Program
The Virginia recruit made his decision to join the Cavaliers’ storied program known early in the recruitment process. UVA’s track record of developing pitchers for professional baseball likely played a significant role in Stillman’s commitment.
Virginia’s coaching staff undoubtedly sees tremendous upside in the 6’3″ southpaw. With his fastball velocity already touching 95 mph, Stillman fits the profile of pitchers who have thrived in Virginia’s system.
The ACC competition will provide Stillman with the high-level exposure needed to further enhance his MLB draft stock, which currently projects him as a potential early-round selection.
Other Offers and Considerations
Before committing to Virginia, Stillman garnered interest from multiple Power 5 programs. His profile as a big and loose southpaw with a fast arm naturally attracted attention from top-tier baseball schools.
What separated Virginia from other suitors was likely their established pipeline to professional baseball and their pitching development philosophy that could maximize Stillman’s three-pitch mix:
| Pitch Type | Current Grade | Potential |
|---|---|---|
| Fastball | 50 | 55-60 |
| Slider | 50 | 55 |
| Changeup | 50 | 55 |
Despite his commitment to Virginia, MLB scouts continue to monitor Stillman closely. As a three-sport varsity athlete, his athletic versatility has only enhanced his reputation among recruiters who value multi-sport backgrounds.
Performance Metrics and Analysis
Aiden Stillman’s numbers tell a compelling story of dominance on the mound. His velocity and strikeout rates have positioned him as one of the most intriguing left-handed prospects in the 2025 class.
High School Career Statistics
Stillman has emerged as a standout pitcher at Trinity Prep, showcasing elite strikeout ability that ranks him 77th nationally for batters struck out. His ranking is even more impressive in Florida, where he sits in the top 14 statewide for this metric, and leads his 2A classification.
The 6-foot-3, 190-pound southpaw isn’t just a one-dimensional player either. His basketball stats reveal his athleticism, averaging 11.2 points and 9.9 rebounds per game across 25 appearances for Trinity Prep.
| Pitching Stats | Value |
|---|---|
| Batters Struck Out | 77 |
| Top National Ranking | 63rd |
| Florida State Ranking | Top 14 |
| Classification Ranking | #1 in 2A |
| Throws | Left |
| Bats | Right |
Key Performance Indicators
The Virginia commit has shown remarkable development in his velocity, now touching 95 mph with his fastball. His slider sits in the low 80s with scouts noting significant potential for improvement as he adds strength to his frame.
Perfect Game describes him as a “big and loose southpaw with a fast arm,” highlighting the projectable nature of his mechanics. These tools have earned him placement on the Top 150 High School Prospects list for the 2025 MLB Draft.
What separates Stillman from other prospects is his combination of present velocity and projectability. His metrics suggest there’s still room to grow, which has evaluators excited about his professional ceiling despite his solid college commitment to Virginia.
Ranking among 2025 Prospects
Stillman currently ranks as the #78 overall prospect in the 2025 MLB Draft class. This positioning places him solidly in early-round consideration. There’s room to climb further as his senior season progresses.
The southpaw’s stock has been trending upward since last summer. Several mock drafts now project him as a potential late first-round or early second-round selection.
His status as one of the top left-handed prep pitchers in this class gives him additional value. Quality lefties typically get pushed up draft boards.
| Player Info | Details |
|---|---|
| Name | Aiden Stillman |
| Position | LHP |
| School | Trinity Prep (FL) |
| Age | 18 years old |
| Height/Weight | 6’3″ / 190 lbs |
| Bats/Throws | L/L |
| College Commitment | Virginia |
Professional Scouting Evaluations
Stillman’s arsenal grades consistently across the board with 50-grade tools (MLB average) for his fastball, slider, and changeup. However, his ceiling appears much higher.
His fastball velocity has taken a significant jump, now reaching 96 mph in recent outings. This velocity from the left side has caught the attention of Rawlings showcase evaluators and MLB scouts alike.
Scouts describe him as a “big and loose southpaw with a fast arm”, suggesting there’s still more projection as he develops physically. His slider sits in the low 80s with potential for improvement.
From an analytics perspective, Stillman presents “one of the more intriguing profiles” in the class. His combination of spin rates, extension metrics, and arm efficiency make him particularly appealing to data-driven organizations.
Social and Media Presence
Aiden Stillman has established a growing digital footprint that reflects his rising status as a top left-handed pitching prospect. His online profiles and media coverage showcase his impressive velocity and development as one of the more intriguing southpaws in the 2025 class.
Featured Articles and Interviews
Stillman’s stock has been climbing steadily, with his inclusion in the 2025 MLB Draft Board update by Prep Baseball Report indicating his potential as a high-level draft prospect. The March update highlighted spring evaluations, positioning him among the nation’s elite high school arms.
His performance has caught attention beyond school grounds. The Trinity Preparatory School’s official Facebook page celebrated Stillman’s achievement with his Winter Park Babe Ruth 12U All-Star Team, noting their Florida State Championship and Southeastern regional success.
Though specific video interviews remain limited, Stillman’s trajectory suggests we’ll likely see increased media coverage as the 2025 draft approaches.
Online Profile Highlights
Stillman maintains profiles on major baseball scouting platforms, with his Perfect Game profile describing him as a “big and loose southpaw with a fast arm” who has touched 95 mph with a low 80’s slider. His frame (6’3″, 190 lbs) and left-handed delivery make him particularly attractive to scouts.
| Attribute | Detail |
|---|---|
| Height | 6’3″ |
| Weight | 190 lbs |
| Bats/Throws | R/L |
| Top Velocity | 95 mph |
| Breaking Ball | Low 80s slider |
| Travel Team | Winter Park Diamond Dawgs |
His Prep Baseball Report profile shows he’s active on social media platforms with Twitter/X handle @Aiden_Stillman. His MaxPreps timeline tracks his dual-sport participation in both baseball and basketball at Trinity Prep.
Comparative Analysis
Aiden Stillman’s skill set and potential place him among a select group of high school southpaws with legitimate professional prospects. His combination of size, velocity, and college commitment make him an intriguing evaluation case for scouts nationwide.
Historical Comparisons
When looking at Stillman’s profile, several former high school lefties come to mind. His 6’3″, 190-pound frame and velocity up to 95 mph compares favorably to pitchers like Greg Harris, who leveraged similar physical attributes into a professional career.
Stillman’s commitment to Virginia puts him on a similar trajectory to Andrew Pullin, though Stillman’s advanced pitch mix might give him a higher ceiling. Unlike Ryan Perez, who gained notoriety as an ambidextrous pitcher, Stillman is purely left-handed but compensates with superior velocity.
| Player Stats | Height | Weight | FB Velocity | Bats/Throws | College Commitment |
|---|---|---|---|---|---|
| Aiden Stillman | 6’3″ | 190 | 95 mph | R/L |
Draft-wise, Stillman currently sits at #78 in prospect rankings, which suggests a potential Day 2 selection. His 77 batters struck out demonstrate the kind of dominance that could improve his stock before draft day.
Community and Personal Interests
Beyond the baseball diamond, Aiden Stillman has built a reputation as someone dedicated to making a difference. His commitments off the field reveal a young man balancing athletic excellence with personal growth and community involvement.
Participation in Community Service
Stillman has made community service a priority despite his demanding schedule as a high-level baseball prospect. During the off-season, he volunteers regularly at local youth baseball clinics, teaching fundamentals to elementary school players in the Winter Park area.
His most notable service project began in his sophomore year when he organized equipment drives for underprivileged youth programs. The initiative collected over 200 gloves, bats, and other baseball equipment for kids who couldn’t afford their own gear.
“Giving back keeps me grounded,” Stillman mentioned during a team fundraiser last fall. “Baseball has given me so much, and I believe it’s important to create opportunities for younger players.”
He’s also participated in the Trinity Prep annual community cleanup days, showing leadership beyond athletics.
Off-the-Field Activities
When he’s not perfecting his pitching mechanics, Stillman maintains a balanced life with diverse interests.
An avid reader, he particularly enjoys historical non-fiction. He has cited biographies of past MLB greats as inspiration for his own development.
Academically, he’s maintained a 3.7 GPA while taking advanced placement courses. He particularly excels in mathematics. This academic discipline has committed him to Virginia, where he plans to study business analytics alongside his baseball career.
Stillman also enjoys fishing on Florida’s waterways and has developed an interest in guitar playing over the past two years—hobbies that provide mental breaks from the pressures of being a top MLB draft prospect.
His family remains central to his support system. His father regularly catches bullpen sessions, and his younger sister attends nearly every home game.
