27 days until Spring Training games
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Aidan Miller
SS | Bats/Throws: R/R | 6' 1" 205LBS | Age: 20
Draft: 2023 | Rd: 1, #27, Philadelphia Phillies | J.W. Mitchell HS
MLB Pipeline Rank
PA
AB
R
H
HR
SB
AVG
OBP
SLG
OPS
2024 22 21 1 4 0 1 .190 .227 .190 .417
Career Minors 542 461 74 123 11 27 .267 .375 .436 .811
AVG
HR
SB
OPS
2024 .190 0 1 .417
Career Minors .267 11 27 .811

Standard Minor League Batting Statistics

Season
Tm
LG
L
G
PA
AB
R
H
2B
3B
HR
RBI
BB
SO
SB
CS
HBP
AVG
OBP
SLG
OPS
2023 2 Teams Minors 20 80 66 10 20 3 1 0 2 12 15 4 1 2 .303 .425 .379 .804
2023 FCL Phillies FCL ROK 10 36 29 6 12 2 0 0 2 6 5 0 0 1 .414 .528 .483 1.011
2023 Clearwater Threshers FSL A 10 44 37 4 8 1 1 0 0 6 10 4 1 1 .216 .341 .297 .638
2024 3 Teams Minors 102 462 395 64 103 28 6 11 60 56 100 23 5 10 .261 .366 .446 .812
2024 Clearwater Threshers FSL A 39 182 149 28 41 16 0 5 26 26 39 10 1 6 .275 .401 .483 .884
2024 Jersey Shore BlueClaws SAL A+ 58 258 225 35 58 12 6 6 32 30 57 12 4 3 .258 .353 .444 .797
2024 Reading Fightin Phils EAS AA 5 22 21 1 4 0 0 0 2 0 4 1 0 1 .190 .227 .190 .417

Scouting Report

draft

Video scouting report »

Scouting grades: Hit: 50 | Power: 60 | Run: 50 | Arm: 60 | Field: 50 | Overall: 55

In 2020, Jackson Miller came out of J.W. Mitchell High School in Florida as one of the better prep catchers in the class, going in the second round to the Reds. Now it’s his younger brother Aidan’s turn. After a strong summer on the showcase circuit -- highlighted by All-American Game MVP honors and a Home Run Derby title as part of the All-Star break in Los Angeles -- he has the chance to get taken earlier than his brother, even though he missed much of his senior season because of a broken left hamate.

Miller is a corner infielder with the kind of offensive profile pro teams want at that spot. The right-handed hitter has easily plus raw power and has shown he can get to it in games against good competition, showing no difficulty in turning around elite velocity. He already has a lot of strength.

When he first got to high school, a leaner Miller played shortstop. As he’s physically matured, he’s slowed and is bigger and more of an average runner. He has the arm, hands and actions to play third base, his current position, at least in the short-term. Even if he had to move to first, his bat looks like it will play, with the kind of offensive upside that could land the Arkansas recruit in the first round.


2025

Video scouting report »

Scouting grades: Hit: 55 | Power: 60 | Run: 50 | Arm: 60 | Field: 50 | Overall: 55

It might sound like a broken hamate is never good fortune, but the Phillies would be hard pressed to refute the claim. Miller looked like one of the best high school hitters in the 2023 Draft class after a tremendous summer showcase performance, but because he broke his left hamate, teams didn’t see him enough that spring, enabling him to land with the Phillies at No. 27 overall. He immediately returned their faith by hitting his way from Single-A to Double-A by the end of his first full season, with a stop at the Futures Game along the way.

Miller entered pro ball with a reputation for having tremendous raw pop, even if some thought he might be a power-over-hit type. He’s proven to have a solid approach and limit strikeouts while drawing walks, as well as having acumen at making adjustments as he’s seen new levels of pitching, doing things like cutting down the hitch and hand pump in his swing mechanics that some evaluators worried about. He’s improved his swing decisions, with confidence he could be an above-average hitter who knows he can get to his power naturally.

While Miller played shortstop in high school, nearly everyone thought he’d have to move to third as he continued to physically mature. But he’s only played short thus far as a pro, and he’s driven to prove he can stay at the premium position. He’ll keep getting time there, though the Phillies will expose him to third and second base in 2025, not because they think he has to move immediately, but so there are options when that middle-of-the-order bat is ready for Philadelphia.


2025

Scouting grades: Hit: 55 | Power: 60 | Run: 50 | Arm: 60 | Field: 50 | Overall: 55

It might never sound like a broken hamate is good fortune for anyone, but the Phillies would be hard pressed to refute the claim. Miller looked like one of the best high school hitters in the 2023 Draft class after a tremendous summer showcase performance but because he broke his left hamate, teams didn’t see him enough that spring, enabling him to land in the Phillies’ lap at No. 27 overall. He immediately returned their faith in him by hitting his way from Single-A to Double-A by the end of his first full season, with a stop at the Futures Game along the way.

Miller entered pro ball with a reputation for having tremendous raw pop, even if some thought he might be a power-over-hit type. He’s proven to have a solid approach and limit strikeouts while drawing walks as well as having acumen at making adjustments as he’s seen new levels of pitching, doing things like cutting down the hitch and hand pump in his swing mechanics that some evaluators worried about. He’s improved his swing decisions, with confidence he could be an above-average hitter who knows he can get to his power naturally.

While Miller played shortstop in high school, nearly everyone thought he’d have to move to third as he continued to physically mature. But he’s only played short thus far as a pro and he’s driven to prove he can stay at the premium position. He’ll keep getting time there, though the Phillies will expose him to third and second base in 2025, not because they think he has to move immediately, but so there are options when that middle-of-the-order bat is ready for Philadelphia.


2024

Video scouting report »

Scouting grades: Hit: 50 | Power: 60 | Run: 50 | Arm: 60 | Field: 50 | Overall: 55

After a strong summer showcase circuit performance that included winning the All-American Game MVP and Home Run Derby during MLB’s All-Star break in Los Angeles, Miller looked poised to be one of the top high school bats early in the first round of the 2023 Draft. He broke his left hamate early in the spring and missed nearly all of his senior year in Florida. He remained on the board until the back end of the first round, where the Phillies were thrilled to take him and sign him to a slightly over-slot bonus of $3.1 million, then watched him make a strong, but brief, first impression in pro ball. 

A right-handed hitting infielder, Miller’s easily plus raw power that showed up in the Derby in L.A. has the chance to be legit at the highest level. He can turn around velocity without difficulty and has already shown he’s far from a one-trick pony, with a solid approach that enables him to make consistent contact, limit strikeouts and work counts, giving more confidence he’ll continue to get to that power as he moves up the ladder.

Miller began his pro career at shortstop, his position in high school. Even though most believe he’ll eventually slide over to third as he continues to physically mature, the Phillies will have him split time at the two spots on the left side of the infield. He has the arm and actions, not to mention the offensive profile, to fit in well at the hot corner.


2023

Scouting grades: Hit: 50 | Power: 60 | Run: 50 | Arm: 60 | Field: 50 | Overall: 55

Jackson Miller was a second-round pick of the Reds in 2020 out of J.W. Mitchell High School in Florida. His younger brother Aidan was considered a better prospect, especially after a strong summer on the showcase circuit that included winning All-American Game MVP honors and a Home Run Deby title during All-Star festivities in Los Angeles. A broken left hamate forced him out for most of his senior year of high school, which may have worked to the Phillies’ benefit as he likely would not have been available to be selected No. 27 overall and signed for $3.1 million.

Miller is a corner infielder with the kind of offensive profile pro teams want at that spot. The right-handed hitter has easily plus raw power and has shown he can get to it against good competition, showing no difficulty in turning around elite velocity. He already has a lot of strength.

When he first got to high school, a leaner Miller played shortstop. As he’s physically matured, he’s become bigger and slowed to more of an average runner. He has the arm, hands and actions to play third base, his current position, at least in the short-term. Even if he had to move to first, his bat looks like it will play, starting with an assignment to the Florida Complex League to start his pro career.



Awards




Transactions

Team
Date
Transaction
01/14/2025 Philadelphia Phillies invited non-roster SS Aidan Miller to spring training.
09/03/2024 SS Aidan Miller assigned to Reading Fightin Phils from Jersey Shore BlueClaws.
07/19/2024 Jersey Shore BlueClaws activated SS Aidan Miller.
07/14/2024 National League Futures activated SS Aidan Miller.
07/12/2024 Jersey Shore BlueClaws placed SS Aidan Miller on the temporarily inactive list.
06/11/2024 SS Aidan Miller assigned to Jersey Shore BlueClaws from Clearwater Threshers.
03/18/2024 SS Aidan Miller assigned to Philadelphia Phillies.
03/07/2024 Philadelphia Phillies Prospects activated SS Aidan Miller.
08/24/2023 SS Aidan Miller assigned to Clearwater Threshers from FCL Phillies.
07/27/2023 SS Aidan Miller assigned to FCL Phillies.
07/18/2023 Philadelphia Phillies signed SS Aidan Miller.
06/02/2023 3B Aidan Miller assigned to College Workout.
08/24/2022 SS Aidan Miller assigned to USA Baseball 18U National Team.
08/24/2022 USA Baseball 18U National Team activated 3B Aidan Miller.
07/01/2022 High School Workout activated SS Aidan Miller.
07/01/2022 High School Workout activated 3B Aidan Miller.
07/01/2022 SS Aidan Miller assigned to High School Workout.