Miguel Sime, RHP, Poly Prep (NY): Rising Star Pitcher Shows Promise for 2025 Draft
Miguel Sime Jr. has emerged as one of the most dominant pitching prospects in the 2025 class. The 6’3″, 235-pound right-hander from Queens Village, NY has been turning heads with his impressive combination of size and power on the mound. His fastball, which averages 97 mph and tops out at 98 mph, has established him as perhaps the top power arm in New York and a legitimate early-round MLB Draft prospect.
The Poly Prep Country Day standout isn’t just a one-pitch wonder. When Sime takes the hill, he complements his blistering fastball with a sharp 80-83 mph slider that gives hitters fits.
His physical frame and arm strength have already caught the attention of major college programs, leading to his commitment to LSU Baseball, where he could develop into an even more complete pitcher.
| Player Info | Details |
|---|---|
| Name | Miguel Sime Jr. |
| Class | 2025 |
| Position | RHP/1B |
| School | Poly Prep Country Day (NY) |
| Height/Weight | 6’3″ / 235 lbs |
| Bats/Throws | R/R |
| Fastball | 97-98 mph |
| Slider | 80-83 mph |
| College Commitment | LSU |
Contents
- 1 Miguel Sime: A Promising Talent
- 2 Poly Prep’s Role in Shaping Future Stars
- 3 The Art of Pitching
- 4 Development and Advancement
- 5 Prospect Scouting and Evaluation
- 6 Intersection of Health Care and Sports
- 7 Potential Impact on Major League Baseball
- 8 Technological Advancements in Training
- 9 Exploring the Broader Impact on Health
- 10 Events and Conferences
Miguel Sime: A Promising Talent
Miguel Sime has emerged as one of the most intriguing pitching prospects in the 2025 MLB Draft class. His combination of physical tools and raw ability has scouts buzzing about his potential as he continues to develop at Poly Prep Country Day in New York.
Background and Early Career
The New York City native has taken an impressive path to becoming a top draft prospect. Sime has developed his craft at Poly Prep Country Day School in Brooklyn, establishing himself as one of the Northeast’s premier arms.
His breakout came at prestigious showcases like the East Coast Pro Showcase and Perfect Game National, where he demonstrated his considerable talent against elite competition. While his performances haven’t always been consistent, his raw ability has never been in question.
Sime trains at Elite Performance in Brooklyn, where he’s continued to refine his mechanics and approach. His development track has caught the attention of numerous MLB organizations who see significant projectable talent in the young right-hander.
Physical Attributes and Abilities
At 6-foot-3 and 235 pounds, Sime possesses a big, strong physical build that screams professional potential. His frame is already mature for his age, giving him the foundation to generate exceptional velocity.
The numbers speak for themselves. Sime’s fastball regularly sits in the upper-90s, with recent outings showing incredible velocity:
| Pitch Type | Velocity | Notes |
|---|---|---|
| Fastball | 97 mph avg (98 max) | Plus pitch with movement |
| Slider | 80-83 mph | Developing out pitch |
During a recent outing, Sime struck out 6 batters in 3 innings while allowing no earned runs. His ability to maintain high-90s velocity and complement it with a developing slider has scouts projecting him as a potential first-round selection in the 2025 MLB Draft.
Control remains his biggest development area. When his mechanics are clicking, Sime shows the potential to be a dominant starter at the next level.
Poly Prep’s Role in Shaping Future Stars
Poly Prep Country Day School has established itself as a genuine talent factory for baseball prospects in the Northeast. The Brooklyn-based institution combines rigorous academics with athletic excellence in a way few prep schools can match.
Miguel Sime represents the latest in a line of promising arms to emerge from Poly Prep’s program. Standing at 6’2″ and 210 pounds, Sime has garnered significant attention from MLB scouts with his elite fastball velocity.
The school’s emphasis on player development shows in Sime’s progression. His mechanics have been refined during his time at Poly, allowing him to consistently hit eye-popping numbers on the radar gun.
Player Profile: Miguel Sime
| Attribute | Details |
|---|---|
| Position | Right-Handed Pitcher |
| Height/Weight | 6’2″ / 210 lbs |
| Bats/Throws | R/R |
| Class | 2025 |
| College Commitment | Louisiana State |
What makes Poly Prep unique is its ability to balance development with exposure. The school regularly faces quality competition, putting players like Sime in front of the right eyes at the right time.
Justice De Jong, another promising talent in the program, has benefited from the same structured approach to development that has helped Sime climb draft boards.
Sime has participated in prestigious events like the Perfect Game All-American Classic, further cementing his status as a potential early-round selection in the 2025 MLB Draft.
The Art of Pitching
Miguel Sime has developed into one of the most intriguing pitching prospects in the 2025 MLB Draft class through his mastery of both power and finesse. His repertoire showcases exceptional velocity paired with developing secondary pitches that keep hitters consistently off-balance.
Fastball Mechanics and Velocity
Sime’s fastball has become his signature weapon, consistently averaging 97 mph and topping out at 98 mph in recent outings. The right-hander generates this impressive velocity through a combination of his powerful 6’3″, 235-pound frame and efficient mechanics.
His arm strength earns elite scouting grades, putting him in the upper echelon of high school pitching prospects. What makes Sime’s fastball particularly effective isn’t just the velocity, but the late movement he generates.
The pitch shows natural arm-side run that makes it difficult for hitters to square up, even when they time it correctly. This combination of velocity and movement explains why Sime recorded 6 strikeouts in just 3 innings during a recent showcase event.
Slider: The Deceptive Secondary Pitch
Complementing his power fastball, Sime has developed a slider that clocks in at 80-83 mph. This pitch has become his primary out-pitch against both right and left-handed hitters.
The slider features sharp, late break that tunnels effectively with his fastball trajectory before darting away from right-handed batters. This deception creates uncomfortable at-bats for opposing hitters who must respect the fastball’s velocity.
What makes the pitch particularly effective is the velocity differential – roughly 15 mph slower than his fastball. This speed change disrupts timing while maintaining enough velocity to prevent hitters from adjusting mid-swing.
MLB scouts have noted the slider’s potential as a plus pitch at the professional level, with one evaluator giving it a 60 grade on the 20-80 scouting scale.
Curveball and Pitch Diversity
While Sime’s slider represents his primary breaking pitch, he’s also developing a curveball to expand his arsenal. This pitch sits in the mid-70s with more vertical drop than his slider, creating a different look for opponents.
The curveball remains a work in progress but shows promise with its 12-6 break. Having this third pitch will be crucial for Sime’s development as he faces more advanced hitters who can better recognize and time two-pitch combinations.
What’s impressive about Sime’s pitch development is his understanding of sequencing. He doesn’t simply throw his secondary pitches in obvious counts but mixes them effectively to keep hitters guessing.
Several MLB organizations have taken notice of this pitch diversity, seeing it as evidence of Sime’s advanced feel for pitching despite his youth.
Command and Control in the Strike Zone
Miguel Sime has also made strides in his command and control on the mound. In his recent three-inning outing, he recorded 6 strikeouts while issuing just 1 walk – a ratio that suggests advanced command for a high school pitcher.
Sime demonstrates the ability to work all quadrants of the strike zone with his fastball, elevating it effectively when ahead in counts and working the corners when needed.
His breaking pitches are increasingly finding the zone as well, though like most young power pitchers, consistency remains an ongoing focus area. When he stays within his mechanics, his control grades out well above average for his age group.
| Pitch Type | Velocity | Movement | Control Grade (20-80) |
|---|---|---|---|
| Fastball | 95-98 mph | Late arm-side run | 55 |
| Slider | 80-83 mph | Sharp late break | 50 |
| Curveball | 74-76 mph | 12-6 vertical drop | 45 |
Currently uncommitted to a college program, Sime is positioning himself as a potential first-round selection in the 2025 MLB Draft. His combination of present stuff and projectability has scouts from multiple organizations making regular visits to Poly Prep’s games.
Development and Advancement
Miguel Sime Jr’s trajectory as a pitching prospect has been marked by impressive physical development and increased velocity on his fastball. His growth from a promising high school talent to an LSU commit showcases both his raw ability and the structured development he’s received.
High School Achievements and Showcases
At Poly Prep Country Day School, Sime has emerged as one of New York’s premier power arms. Standing at an imposing 6-3 with a 235-pound frame, the right-hander possesses the physical tools that scouts covet. His performances at Perfect Game events have consistently drawn attention from college recruiters and professional scouts alike.
Sime’s velocity has ticked up significantly over his high school career. During recent showcases, he’s been recorded throwing his fastball with increasing power, establishing himself as possibly the top power arm in New York.
| Player Profile | Details |
|---|---|
| Name | Miguel Sime Jr |
| Class | 2025 |
| Position | RHP/1B |
| Bats/Throws | R/R |
| Height/Weight | 6-3/235 lbs |
| School | Poly Prep Country Day |
Verbal Commitment to Louisiana State
Sime’s talent hasn’t gone unnoticed at the collegiate level. He has secured a verbal commitment to LSU Baseball, one of college baseball‘s most storied programs. This commitment speaks volumes about his potential ceiling as a prospect.
The Tigers’ pitching development program has a track record of transforming talented arms into MLB draft picks. For Sime, this represents an opportunity to refine his mechanics and expand his pitch arsenal under elite coaching.
His status as an LSU commit has further elevated his draft stock for the 2025 MLB Draft. Scouts will be watching closely to see if he maintains his development trajectory, potentially positioning him as a high-round selection.
Participation in Elite Programs
Sime has supplemented his high school development through participation in elite development programs. His involvement in showcase events has given him exposure to top-level competition and professional instruction.
Former MLB manager Jerry Manuel has discussed Sime’s development, noting his invitation to a training camp program. This type of mentorship from established baseball figures provides invaluable guidance for young prospects.
The Breakthrough Series has also played a role in Sime’s development, offering a platform to display his abilities against other elite prospects. These experiences against high-caliber competition have accelerated his growth while providing exposure to professional scouts.
Prospect Scouting and Evaluation
Miguel Sime Jr. stands out as one of the premier power arms in the 2025 MLB Draft class. His imposing physical presence and electric fastball have scouts buzzing about his potential, though his control remains a work in progress.
Analyzing Scouting Grades
Sime’s scouting grades tell a compelling story of his strengths and development areas. His fastball earns an elite 70 grade, putting it among the best in his class. The velocity jumps off the page.
His slider isn’t far behind with a solid 55 grade, showing good movement and potential as an out pitch. However, his control sits at just 40, highlighting the primary challenge in his development.
| Tool | Grade | Assessment |
|---|---|---|
| Fastball | 70 | Plus-plus velocity, explosive |
| Slider | 55 | Above-average potential |
| Control | 40 | Below average, needs refinement |
| Overall | 45 | Solid prospect with upside |
At 6-foot-3 and 235 pounds, Sime possesses the imposing frame scouts love. This physical presence allows him to generate significant power in his delivery.
Projection into Professional Baseball
Sime’s pathway to professional baseball looks promising, with LSU securing his commitment for college ball. The LSU baseball commit could potentially bypass college if his draft stock continues to rise.
His ceiling in professional baseball hinges largely on control development. With his already elite fastball and developing secondary offerings, improved command could transform him from a power relief prospect to a legitimate starting pitcher option.
Scouts have been following him closely, with his performances documented throughout summer showcases. The consistency of his delivery will be crucial for his draft position.
Many evaluators see Sime as a potential early-round selection in the 2025 MLB Draft, with his stock trending upward. Power arms with his velocity typically attract significant attention from MLB teams willing to develop his control.
Intersection of Health Care and Sports
Miguel Sime’s rapid rise as a top pitching prospect shines a light on the evolving relationship between health care and baseball development. Standing at 6’2″ (or 6’3″ depending on the source) and a solid 210-235 pounds, his physical development represents modern athlete care practices.
The LSU commit’s ability to consistently throw 94-98 mph with touches of 100 doesn’t happen by accident. Behind every power arm like Sime’s stands a sophisticated health and conditioning program.
Player Profile:
Today’s baseball prospects benefit from technological advances unimaginable a generation ago. Biomechanical analysis, once reserved for MLB clubhouses, now helps young arms like Sime maximize velocity while minimizing injury risk.
Injury prevention represents perhaps the most critical intersection of health care and baseball. For MLB teams eyeing Sime as a potential early-round selection in 2025, his durability matters as much as his electric fastball.
The big, strong physical build scouts note suggests Sime’s training regimen emphasizes both performance and longevity – a balancing act that defines modern pitcher development.
Potential Impact on Major League Baseball
Miguel Sime has the physical tools to become a power arm at the major league level. At 6-4, 235 pounds, his frame already looks MLB-ready despite being in the 2025 draft class.
What separates Sime from other high school arms is his raw power. The Poly Prep right-hander could develop into a high-leverage reliever or mid-rotation starter depending on how his command progresses.
His biggest hurdle? Consistently finding the strike zone. The good news is his control improved toward the end of last summer, showing adjustability that scouts love.
Draft Projection: Sime currently sits around #175 on draft boards, but his ceiling could push him much higher with a strong senior season.
Sime has already committed to LSU Baseball, giving him leverage in negotiations. MLB teams will need to offer above-slot money to lure him away from college.
His developmental path likely includes 2-3 years in the minors refining his mechanics. MLB organizations will be patient given his physical tools and velocity ceiling.
Teams with strong pitcher development pipelines like Cleveland and Tampa Bay would be ideal landing spots for maximizing his potential.
Technological Advancements in Training
Miguel Sime Jr., the towering right-hander from Poly Prep Country Day School, has embraced cutting-edge technology to elevate his already impressive arsenal. Standing at 6-4 with a powerful 235-pound frame, Sime has utilized advanced motion capture systems to refine his mechanics.
His fastball, which now averages an eye-popping 97 mph, didn’t reach such velocities by accident. Sime employs high-speed cameras and biometric sensors during bullpen sessions, allowing his coaches to identify inefficiencies in his delivery.
Data analysis has become integral to Sime’s development. His training program incorporates velocity-tracking devices that measure not just speed but also spin rate and movement profiles on his slider, which sits at a sharp 80-83 mph.
The LSU commit has embraced wearable technology to monitor his workload and recovery. This data-driven approach has helped Sime avoid overtraining while maximizing his development as one of New York’s premier power arms.
Force plate analysis has revealed Sime’s exceptional ground force production, explaining his ability to generate exceptional velocity despite maintaining relatively clean mechanics.
MLB scouts have taken notice of Sime’s technological savvy. His combination of size, present velocity, and room for further development has positioned him as a potential early-round selection in the 2025 MLB Draft, with some evaluators viewing him as among the top arms in his class.
Exploring the Broader Impact on Health
When examining Miguel Sime’s pitching mechanics, we can’t overlook the importance of health sustainability for young prospects. The right-hander from Poly Prep demonstrates excellent physical conditioning that could translate well to the rigors of professional baseball.
Proper pitching mechanics are crucial for avoiding common injuries that plague young arms. Sime’s delivery appears fluid and repeatable, which bodes well for his long-term health prospects.
The coordination compounds found in modern training regimens have revolutionized how prospects like Sime prepare their bodies. These science-backed approaches help enhance performance while protecting developing arms.
MLB Draft Health Considerations:
| Health Factor | Assessment | Impact on Draft Stock |
|---|---|---|
| Arm Action | Clean, low stress | Positive |
| Injury History | Minimal reported issues | Significant plus |
| Workload Management | Well-monitored at Poly Prep | Appealing to scouts |
| Physical Maturation | Still developing | Projectable |
Medical teams at MLB organizations will likely view Sime as a lower-risk prospect from a health standpoint. His frame suggests durability without sacrificing the explosiveness that makes him attractive to scouts.
Sime appears to have avoided the overuse patterns that often target young pitchers. This could prove significant as organizations increasingly value long-term health projections alongside raw talent assessments.
For teams committed to innovative player development, Sime represents the kind of blank canvas that modern training methods can potentially mold into a durable professional arm.
Events and Conferences
Miguel Sime has been making waves at key baseball showcases, demonstrating his elite pitching talent and drawing significant attention from scouts and college programs. His powerful right arm and imposing physical presence have made him a standout performer whenever he takes the mound at major events.
Showcasing Talent at the Breakthrough Series
The Breakthrough Series proved to be a defining moment in Sime’s development journey. Standing at 6-4 and 235 pounds, the Poly Prep standout dominated with a fastball that consistently touched the upper 90s. Scouts in attendance were particularly impressed with his combination of size and velocity.
“When you see a high schooler with that kind of frame who can already touch 98, you’re looking at a potential first-round talent,” one MLB scout noted at the event.
Sime’s performance included three scoreless innings with seven strikeouts, showcasing not just velocity but impressive command for a power pitcher his age. His slider, which features tight break at 86-88 mph, generated numerous swings and misses.
Recognition at the Perfect Game
At the Perfect Game showcase, Sime solidified his status as one of the top pitching prospects in the 2025 class. His physical build and powerful delivery drew comparisons to current big league power pitchers.
Miguel Sime’s Perfect Game Measurements
| Height | Weight | Throws | Bats | FB Velocity | Top FB | Slider |
|---|---|---|---|---|---|---|
| 6’3″ | 235 lbs | Right | Right | 95-97 mph | 98 mph | 86-88 mph |
Already committed to LSU Baseball, Sime’s draft stock continues to rise with each appearance. He’s currently projected as a potential first-round selection in the 2025 MLB Draft.
The Queens Village native ranks #53 nationally and #2 in New York state according to Prep Baseball Report’s rankings.
Insights from the International Conference
The International Conference on Baseball Prospects highlighted Sime as one of the most promising young arms in the global baseball landscape. Analysts pointed to his unusual combination of current velocity and remaining projection.
His mechanics were a focus of discussion among the pitching experts present. Despite his power approach, Sime demonstrates relatively clean mechanics. He has a repeatable delivery that suggests he’ll maintain his command as he continues developing.
“One conference presenter noted, ‘What makes Sime special is that he’s not just a thrower – there’s real pitchability there,'” said a conference presenter. “‘The fastball gets the attention, but his secondary pitches are developing nicely.'”
The conference data analysis projected Sime’s ceiling as a potential front-of-rotation starter. His 2,520 rpm fastball spin rate places him in elite territory for his age group.
