On January 25TH, the Prep Baseball California team hosted the Inland Empire Preseason ID at Corona High School in Corona, Cal. This was an open event for high school classes (2026-2030), and gave our staff an ample look at the area’s top prospects.

• To view the post-event content from the event, click here.
• To find the statistics from the event, click here.
• To view the full event roster, click here.

Today, we will we’re taking a look at all of the pitchers from the event in alphabetical order:

PITCHER ANALYSIS

Jackson Baker, Millikan High (CA), 2027
Positional Profile: LHP A high-ceiling 2027 LHP with a smooth, athletic delivery and a promising three-pitch mix that projects well as a future rotation anchor.
Body: 5-11.8, 138-pounds. Ultra-lean, and wiry frame with significant physical projection remaining. Possesses broad shoulders and long levers that suggest a significant jump in velocity as he matures and fills out his frame.
Delivery: Starts with a calm, repeatable tempo and employs a rhythmic leg lift to a balanced point. Moves down the mound with efficient direction toward the plate, maintaining a firm front side through the finish. Displays athletic actions with a clean follow-through, showing the ability to repeat his mechanics consistently.
Arm Action: LH. Features a clean, continuous arm path that comes through a high 3/4 slot. The arm is quick and loose, producing easy effort with projectable power. Demonstrates a consistent release point across his entire arsenal, which aids in deception and makes his secondary offerings difficult to distinguish from the fastball.
FB: T80, 79-80 mph. Shows natural late tailing action to the arm side with -4.8 inches of horizontal movement. At 12.2 inches of Induced Vertical Break (IVB), the offering plays effectively at the bottom of the zone to induce weak ground ball contact. T2034, 1942 average rpm.
CB: 69-71 mph. Displays a sharp, 1/7 shape with significant horizontal sweep (14.9 inches). The high spin rate indicates a strong feel for the pitch, making it a reliable weapon for both getting ahead in the count and generating chases out of the zone. T2371, 2224 average rpm.
CH: 74-75 mph. Features heavy late-fading action with -11 inches of horizontal movement. Kills spin effectively (1711 rpm Max), creating a solid speed differential from the fastball and a "depthy" profile (7.5 inches IVB) that keeps hitters off-balance. T1711, 1641 average rpm.

Matteo DAquanni, Murrieta Valley High (CA), 2029
Positional Profile: RHP/1B Tall, projectable, and young, with present velocity and athletic movements at the dish, will only continue to rise as strength and maturity is added. Definitely someone to keep an eye on.
Body: 6-5.7, 192-pounds. Long frame, with some muscle mass already evident, listed at 6'4 190, with room to grow into the frame even more.
Delivery: From the wind up, creates large leg lift, and sinks well into the glute as he creates downhill movement, creates separation at break.
Arm Action: RH. High 3/4 Arm slot, with release point high and far away from body, short takeback.
FB: T86, 84-85 mph. Present arm side run, works primarily as two seam. Runs it up to 86, with max spin of 2120. Velocity will continue to grow and be supported by the frame, as strength is added. T2120, 2006 average rpm.
CB: 72-72 mph. Shows some shape, with spin at 2304. T2304, 1866 average rpm.
CH: 76-78 mph. Plays well off of fastball, with arm side run as well. Change in velocity from fastball. Best secondary the the moment. T2014, 1953 average rpm.

Lucas Hernandez, Eleanor Roosevelt High (CA), 2026
Positional Profile: SS/RHP Senior with present ability in the infield, with strong pullside pop.
Body: 6-1, 185-pounds. Well portioned and fluid mover. Already with some present strength.
Delivery: Uses large leg kick, sinks well into lower half, front foot opens straight to catcher, and front side stays firm through delivery.
Arm Action: RH. Longer back arm action, stock 3/4 arm slot.
FB: T77, 70-75 mph. 4 seam plays well to top of the zone, no arm side run or cut. T1977, 1811 average rpm.
CB: 63-67 mph. 1/6 shape, works well to the left side of the plate, shows best shape when released out front. T2232, 2135 average rpm.

Rourke Julio, Vista Murrieta (CA), 2029
Positional Profile: RHP/3B Long levered pitcher with present velocity and feel for secondaries. Someone to look out for.
Body: 6-1.9, 183-pounds. Long lean frame with a lot to add on to. Moves well on the mound with plus hip mobility.
Delivery: Medium high leg lift, creates good sink into back leg, with ability to clear hips, front arm creates timing and pull through for motion. Front leg stays firm through delivery.
Arm Action: RH. 3/4 arm slot, with medium length takeback. Best when release point is out front.
FB: T84, 81-84 mph. Arm side run, good spin rate already present with velocity. T2246, 2177 average rpm.
CB: 71-74 mph. Tight 12/6 action. Filled up zone with it. T2445, 2304 average rpm.
SL: 71-73 mph. Present horizontal movement. Current spin rate is plus at velocity. Moves well left to right. T2400, 2360 average rpm.
CH: 75-77 mph. Vertical movement shows separation from fastball. T1981, 1802 average rpm.

Joseph Keller, Damien (CA), 2027
Positional Profile: RHP/OF Long levered frame, with ability to add more weight and muscle. Curveball spins well and will be interesting to see progression as body matures.
Body: 6-2, 170-pounds. Tall and lengthy frame, with weight and muscle to add on.
Delivery: Worked exclusively out of the stretch, small leg lift with front leg coming around to create lag. Front side stays firm through delivery.
Arm Action: RH. OTT arm slot with high release point, takeback is long and comes behind body.
FB: T77, 75-77 mph. Works well to top of the zone, with some ride. T1877, 1774 average rpm.
CB: 62-63 mph. Shows shape and works truly at 12/6. Spins tight when released out front and with present arm slot is deceptive. T1859, 1837 average rpm.
CH: 69-71 mph. Arm side run, and velocity change shows separation from fastball. T1789, 1725 average rpm.

Caleb Koster, Cajon High (CA), 2027
Positional Profile: RHP/OF Rising junior with wiry frame. As he matures and adds weight / muscle, his current arm action support more velocity growth, and his movement throughout field displayed balance and fluidity. Interesting to see as he matures and definitely someone to look out for.
Body: 5-11.6, 153-pounds. Lean and wiry athlete that maintained great balance across the field. With height that supports even more weight and muscle to be added as he matures.
Delivery: High leg kick, into deep sink into back leg. Front side creates pull for arm and velocity creation. Hips clear well and front side gets firm and foot is in line with catcher.
Arm Action: RH. Long takeback behind body to 3/4 slot. Action is whippy and body stays close to in line at release point.
FB: T86, 83-85 mph. Some arm side run, best action low and away to righties. T2093, 1940 average rpm.
CB: 67-70 mph. Shows best spin and shape when released later. Sharp when thrown lower in the zone. 1/6 shape. T2168, 1986 average rpm.
CH: 73-75 mph. Present horizontal and vertical movement, with deception from fastball. T1426, 1285 average rpm.

Hudson Kunzman, Los Osos High (CA), 2027
Positional Profile: RHP Lean efficient mover with some muscle mass present. Will only get better with more mature muscle and feel for secondaries increases.
Body: 5-9.7, 162-pounds. Athletic and efficient mover, with present muscle. More to add as he matures but body is sound at present.
Delivery: High legkick, sinks into lower half while creating good separation in line with lower / upper half.
Arm Action: RH. 3/4 arm slot, with short takeback. Arm is efficient and wastes no movement throughout. Release point promotes armside run.
FB: T83, 82-83 mph. Arm side run, accentuated by his release point. Plays well inside to right-handed hitters. T2076, 2001 average rpm.
CB: 75-77 mph. Tight spin, with some vertical movement. T2227, 1816 average rpm.
CH: 76-78 mph. Velocity change and plays well off of fastball, both with arm side run. T1327, 1228 average rpm

Tommy Lopez, Upland High (CA), 2027
Positional Profile: SS/RHP Rising junior with present arm strength in the infield.
Body: 6-1.1, 165-pounds. Stocky frame with lots of room to grow into as he matures.
Delivery: High leg kick, front side creates some separation after gather, small sink into lower half.
Arm Action: RH. High 3/4 slot, very short takeback, releases out away from body.
FB: T82, 79-81 mph. Release point accentuates arm side run. Ride to right handed batter, best at the top of the zone. T2142, 2105 average rpm.
CB: 69-69 mph. 12/6 shape, works best when released out front, shows some feel for spin. T2070, 2070 average rpm.
SL: 66-69 mph. Shows some feel for horizontal movement. Best when released later creating left to right movement. T2020, 1954 average rpm.
CH: 67-69 mph. Works well off of fastball, arm side run and velocity change is drastic. T1349, 1219 average rpm.

Landon Mortenson, San Clemente High (CA), 2028
Positional Profile: OF/SS Sophomore with long lean frame. Interesting to see his development as muscle matures and lean mass is added.
Body: 6-0.3, 150-pounds. Athletic frame with room to add functional mass. Build is lean and proportional across the upper and lower halves.
Delivery: High leg kick, sinks slightly into back leg, front leg and arm create some separation for backside lag.
Arm Action: RH. 3/4 slot, short takeback, gets downhill well.
FB: T79, 76-79 mph. Some horizontal movement, arm side run prevalent due to release point. T1859, 1785 average rpm.
CB: 64-67 mph. 1/4 shape. T1643, 1553 average rpm.
CH: 68-70 mph. Works well off fastball, arm side run with noticeable velocity change. T1337, 1203 average rpm.

Jacob Pimentel, Los Osos High (CA), 2028
Positional Profile: LHP/OF Deceptive LHP with armside movement.
Body: 5-8.8, 150-pounds. Lean and wiry, lots of room for muscle to be added.
Delivery: High legkick, sinks deep into lower half, gains ground towards plate, front foot lands square to catcher and front half stays firm.
Arm Action: LH. Low takeback, into OTT slot. Whippy.
FB: T82, 80-81 mph. Arm side run, filled up the zone to all spots. Worked best in to lefties. T1864, 1801 average rpm.
CB: 67-69 mph. 11/4 shape. Vertical shape with some horizontal movement. Worked best low in the zone. T2090, 2016 average rpm.
CH: 72-74 mph. Plays well off of fastball horizontal movement. Velocity change and drop is prevalent as well. T1609, 1592 average rpm.

Ethan Ramallo, Upland High (CA), 2028
Positional Profile: RHP Sophomore RHP with feel for fastball / changeup mix.
Body: 5-11.6, 181-pounds. Long levers and fluid mover on the mound. Filled out as is, but could see even more growth as muscle matures and mobility is continued to be added.
Delivery: High leg kick into gather, sinks low and long into backside with front arm creating space / curl for separation. Separation from hips and T-Spine through footplant.
Arm Action: RH. Short takeback into high 3/4 slot. Fast actions and whippy.
FB: T83, 81-83 mph. Straight with little to no horizontal movement, creates some direction especially when released later. T2101, 1966 average rpm.
CB: 70-71 mph. 1/7 shape, when at best. Works well when release point is later and thrown across body. T1947, 1883 average rpm.
CH: 75-77 mph. Impressive arm side run, creates nice deception and difference from fastball. T1850, 1811 average rpm.

Juan Sandoval, St. Bernards High School (CA), 2027
Positional Profile: RHP/C Junior with filled out frame and some present strength, moves well behind the dish and showcased some plus exit velocity numbers.
Body: 5-9.8, 197-pounds. Filled out frame with long legs.
Delivery: Medium legkick, into some sink into lower half, creates pull with front side, hips/spine are open fully at leg plant.
Arm Action: RH. Medium takeback into 3/4 slot. Creates some leanback through release.
FB: T80, 79-80 mph. Some armside run, works best at top of the zone. T2237, 2124 average rpm.
CB: 66-70 mph. 1/5 shape, shows shape when released later. T2330, 2268 average rpm.
CH: 72-75 mph. Deceptive with fastball. Armside run and some drop out. T1589, 1530 average rpm.

Dhuruv Sankararaman, Westlake High (CA), 2027
Positional Profile: 3B/RHP Rising junior with present ability to lift the ball well to pullside. Great student.
Body: 5-8.5, 168-pounds. Lean frame with broad shoulders and long legs.
Delivery: Medium legkick, some shift into lower half with long front arm action to create seperation. Front side stays firm through release.
Arm Action: RH. Medium takeback into OTT slot.
FB: T77, 75-76 mph. Release point leaks ball out right. Gets across body well. T1761, 1680 average rpm.
SL: 64-67 mph. Tight spin with some vertical movement. T1707, 1628 average rpm.
CH: 72-73 mph. Arm side run and plays well off of fastball. T1358, 1243 average rpm.

RELATED CONTENT