MLB Top 100 Prospects: September 2025

Who is #1?

Introduction

In this article I will list my MLB Top 100 Prospects and focus on movement from my last update. Each notable player will have a graphic associated with them that includes information such as biographical data, MiLB statistics, and, most importantly, my scouting grades. These grades are on the traditional 20-80 Grade Scouting Scale and were determined through both statistical and video analysis.

As I learned through this process, the task of writing and compiling a Top Prospects list is not easy. The plethora of research required is time-consuming, and that does not consider the complexity of scouting. I have consumed countless amounts of baseball content in my life, and I would like to thank everyone that inspired and provided me the knowledge to undertake this project.

Let’s cover some important parts of my scouting process:

• I defined a MLB Prospect as: Any player signed to a MLB Team that has no more than 130 AB or 50.0 IP

• I used the 20-80 Scale for my scouting grades with Present Value (PV) and Future Value (FV) in the format of PV/FV

Some other notes:

• The backend of any Top 100 Prospect list is extremely fluid, and mine is no exception. You could argue that close to 150 Prospects deserve the title of a Top 100 Prospect, and I would agree

• As always, I encourage constructive criticism! I would be happy to discuss any prospect on this list or any others that you have questions about

• I am human. Please inform me if I made a mistake!

Now, with that out of the way, we can get to the list. Enjoy!

Newly Added Prospects

45) Jacob Reimer - 3B - NYM

Previous Rank: UR → New Rank: 45

Reimer caught my eye early in the season thanks to his all-around offensive profile and improved defense at 3rd. He just missed the list in the August after big K% spike following his promotion to AA, but he turned on the jets to end the season. The approach is sound, and the swing will keep the ball in the air.

46) Ralphy Velazquez - 1B - CLE

Previous Rank: UR → New Rank: 46

Velazquez reminds me of Josue Briceno: solid approach, decent hit tool, and an extremely loud bat. He had a picture-perfect start to his AA tenure with a wRC+ north of 200 in his first month. He doesn't provide much speed or defensive utility, but with an offensive profile this enticing his prospect stock is poised to skyrocket.

49) Eduardo Quintero - OF - LAD

Previous Rank: UR → New Rank: 49

Quintero joins a long list of exciting Dodgers OF prospects and his ceiling may be the highest of them all. He wields plus bat speed supported by a patient approach and above average speed. He isn't placed higher on this list because his hit tool is still very raw, and his flatter swing may inhibit his power potential.

74) Connelly Early - LHP - BOS

Previous Rank: UR → New Rank: 74

Early has taken big strides in the command and endurance departments this season and the results have been fruitful. His changeup is one of the best pitches in MiLB and he has a medley of other offerings to tackle both LHH and RHH.

79) Jaxon Wiggins - RHP - CHC

Previous Rank: UR → New Rank: 79

Wiggins missed the list initially because his usage seemingly disappeared after June. He had only 1 start in July and didn't pitch again until the end of August. Now in AAA, Wiggins quickly demonstrated his incredible fastball and his supporting breaking balls. He has the stuff of a top end pitching prospect but will need to show better command before vaulting up the ranks.

81) Ryan Waldschmidt - OF - AZ

Previous Rank: UR → New Rank: 81

Waldschmidt may be the most consistent batter in MiLB. At every level since his debut, he has posted a wRC+ over 140 and it is all backed up by a patient approach and solid power. The hit tool carries some more risk than the results indicate which drives his placement to the back end of the list.

83) Braden Montgomery - OF - CWS

Previous Rank: UR → New Rank: 83

Montgomery is an extremely tooled up OF who hasn't let his weak hit tool drag down his performance. The blend of power and aggressiveness should lead to plenty of slug and he has a cannon of an arm to supplement his strong glove.

89) Jeferson Quero - C - MIL

Previous Rank: UR → New Rank: 89

Quero missed the list in August due to concerns about his health and underwhelming power. Since then, he has returned to AAA where his power stroke has mostly returned, but his poor plate discipline continues to make me bearish.

92) Didier Fuentes - RHP - ATL

Previous Rank: UR → New Rank: 92

Fuentes was an honourable mention in August and his performance in AAA has warranted a spot on the list. The fastball is the key pitch here with its flat approach and mid 90s velocity. Polishing up the secondaries is the next step for the 20-year-old.

98) Gavin Fien - SS - TEX

Previous Rank: UR → New Rank: 98

Fien was seen as the #1 prep bat from the 2025 draft by some and it is easy to see why. Although his pro debut isn't off to the hottest start, he is flashing outstanding power metrics backed by good pitch recognition and contact rates. Don't be surprised if he is the quickest rising high school draftee in 2026.

99) Kemp Alderman - OF - MIA

Previous Rank: UR → New Rank: 99

Alderman can be described in one word: power. He is one of the few batters in MiLB that can say they have 80 grade raw power, and Alderman has slashed his K% and Whiff% to more often tap into it. He is off to a blazing start in AAA and if he continues to lift the ball, he can become a slugging machine.

Prospects Moving Up

8) Nolan McLean - RHP - NYM

Previous Rank: 27 → New Rank: 8 (+19)

McLean hopped into the Top 10 thanks to a very strong showing in the Majors. The stuff screams frontline starter, and the command gains this season feel sustainable.

16) Payton Tolle - LHP - BOS

Previous Rank: 29 → New Rank: 16 (+13)

Tolle was the owner of the best fastball in the minors and MLB batters got a taste of the offering following his promotion to MLB. His growth this season in many facets is astonishing and makes him one of the most complete pitching prospects there is.

20) Aidan Miller - SS - PHI

Previous Rank: 55 → New Rank: 20 (+35)

Aidan Miller lit AA on fire in August, so much so that the Phillies rewarded him with a promotion to AAA to finish up the season. His power upside is tantalizing and baserunning skills have been on full display this season with 55 SB (and counting) to show for it.

22) Alfredo Duno - C - CIN

Previous Rank: 53 → New Rank: 22 (+31)

Duno continued his fantastic season with a torrid August where he walked a lot more than he struck out and he seemingly hit a HR every other day. His approach at the plate is incredible and the power is real.

23) Walker Jenkins - OF - MIN

Previous Rank: 42 → New Rank: 23 (+19)

Jenkins makes his way into the Top 25 after being outside the Top 40 in my August update. While my concerns about his power upside are still present, the hit tool and eye remain strong enough to be confident that he will be an above average bat in MLB very soon.

33) Robby Snelling - LHP - MIA

Previous Rank: 49 → New Rank: 33 (+16)

Snelling has been one of the best pitchers in the minors this season and has made AAA look easy. His fastball and command buoy his profile, and his curveball has taken a big step this season in being a whiff generating machine. If his changeup can take a similar leap, watch out!

34) Carter Jensen - C - KC

Previous Rank: 45 → New Rank: 34 (+11)

The hit tool concerns are still there, but his ability to tap into game power consistently makes him an exciting bat. He also has the chops to take over the starting catcher role in Kansas City by next season.

48) Caleb Bonemer - SS - CWS

Previous Rank: 60 → New Rank: 48 (+12)

Bonemer took his promotion to Hi-A in stride, launching 2 HR and flexing his advanced power. The approach is sound, and the bat is loud without concerning strikeout issues getting in the way. Bonemer is a massive up arrow prospect.

52) Luis Morales - RHP - ATH

Previous Rank: 64 → New Rank: 52 (+12)

Morales' sweeper continues to impress and his pitchability has taken a step forward. I was likely too low on him in my last iteration and a modest bump was in order.

64) Juneiker Caceres - OF - CLE

Previous Rank: 99 → New Rank: 64 (+35)

Carceres' cup of coffee in Lo-A in his age 17 season went well as he posted a 102 wRC+ across 30 games while exhibiting excellent power metrics for a prospect his age while showing off an advanced hit tool. He also has a cannon of an arm which helped return 5 outfield assists.

75) Brandon Sproat - RHP - NYM

Previous Rank: 87 → New Rank: 75 (+12)

A hot 2nd half driven by a pitch usage overhaul made Sproat look more confident on the mound and led to a call-up to the Mets. The strikeout upside isn't as present in his profile, but he should continue to induce weak contact.

82) Marco Dinges - C - MIL

Previous Rank: 97 → New Rank: 82 (+15)

After missing all of July, Dinges looked like his old self in August as he continued to flex his power stroke and sharp eye. His swing is a thing of beauty and if his defense doesn't hold up behind the plate, he should be a more than capable 1B.

Prospects Moving Down

17) Bubba Chandler - RHP - PIT

Previous Rank: 9 → New Rank: 17 (-8)

A mix of Chandler not dominating AAA and the progressive rise in his BB% hurt his stock. He is finally in the Majors and can let his stuff shine, but his results this season was the driving factor for his descent.

25) Sebastian Walcott - SS - TEX

Previous Rank: 15 → New Rank: 25 (-10)

Walcott has improved his contacts rates this season, but it hasn't come with any noticeable improvements to contact quality. I love the elite bat speed and jaw-dropping EVs, but without swing designed to lift the ball consistently, I struggle to see his immense power fully translating into game action.

29) Andrew Painter - RHP - PHI

Previous Rank: 16 → New Rank: 29 (-13)

Andrew Painter shouldn't be on this list. He should have debuted in 2023 and already be one of the best pitchers in baseball. Unfortunately, a slew of injuries, ultimately resulting in TJS, have caused Painter to miss an immense amount of time. He has also struggled in AAA this season with pedestrian K% and worsened pitch shapes. He has the talent to be a Top 10 Prospect, but he hasn't shown that this season.

68) Slade Caldwell - OF - AZ

Previous Rank: 59 → New Rank: 68 (-9)

Caldwell has a lot to like about his profile: Plus-plus speed, a lofty swing, a solid hit tool, and a sharp eye. His smaller stature will likely limit his future power potential and he just has not performed up to the same level as his prep counterparts, including an absence of power following his promotion to Hi-A.

69) Arjun Nimmala - SS - TOR

Previous Rank: 54 → New Rank: 69 (-15)

After an electric start to the season, Nimmala has been in free-fall for the past few months. His contact gains this season have petered out and he hit just 1 HR in all of August. His raw tools, especially his power, at 19 still make him one of the Blue Jays most exciting prospects.

70) Ethan Holliday - SS - COL

Previous Rank: 26 → New Rank: 70 (-44)

Holliday looks exactly like the prospect that the Rockies drafted 4th overall in this year's draft. He has exhibited fantastic power metrics for a prep hitter and he has maintained a solid chase rate. The reason for his tumble down my rankings stems from his horrendous contact rates. He has a Whiff% north of 40% and a K% right below that. It's a very volatile profile that makes it difficult to trust without noticeable improvements.

77) George Klassen - RHP - LAA

Previous Rank: 65 → New Rank: 77 (-12)

Klassen remains one of my favourite pitching prospects but a combination of damage against and command concerns caused him to slide down a bit. When he is on his game, he looks like one of the best pitchers in the minors, and that's what keeps him squarely in my Top 100.

86) Eduardo Tait - C - MIN

Previous Rank: 71 → New Rank: 86 (-15)

Tait's time in Hi-A as his K% spiked and his already low BB% continued to decline. His swing-happy approach makes me cautious that he will continue to struggle as he moves through the minors.

90) Leonardo Bernal - C - STL

Previous Rank: 70 → New Rank: 90 (-20)

A rough August made Bernal's stock fall, but he clings onto his spot in the Top 100 thanks to an advanced glove and solid hit tool. There are concerns that his power won't translate into game action, but he should hit enough to allow his defense behind the plate do the talking.

96) Logan Henderson - RHP - MIL

Previous Rank: 76 → New Rank: 96 (-20)

In a perfect world, Logan Henderson would have graduated from this list and be a key piece of the Brewers playoff run. Unfortunately, an elbow injury sent him to the 60 Day IL which is cause for concern for any pitcher. A healthy Henderson doesn't slide down, but for now he joins a group of rehabbing arms.

Removed Players

Graduated Players

• Jacob Misiorowski (Previous Rank: 4)

• Luke Keaschall (Previous Rank: 31)

• Braxton Ashcraft (Previous Rank: 75)

• Colson Montgomery (Previous Rank: 79)

Falling off the list

Rhett Lowder - RHP - CIN

Previous Rank: 78

Lowder has had an oft-injured year and his upside felt capped compared to the final few pitchers that stayed on the list.

Kendry Rojas - LHP - MIN

Previous Rank: 85

A speed bump following his trade to the Twins indicates that he still has some work to do with his command. I still really like the fastball and changeup growth is encouraging.

Jurrangelo Cijntje - SHP - SEA

Previous Rank: 86

The fastball is excellent, but the secondaries, especially their command, continue to lag behind it.

Jorge Quintana - SS - SD

Previous Rank: 98

He looks overmatched in Lo-A after running a 33.7K% across 25 G. The power and defensive upside continue to make him an exciting prospect.

Jonny Farmelo - OF - SEA

Previous Rank: 94

The contact rates are extremely poor, and his sprint speed is down a lot. Part of that stems from his return from a rib injury, but I need to see the strikeouts fade before he returns back into the Top 100.

Joseph Sullivan - OF - HOU

Previous Rank: 95

Sullivan stumbled upon his promotion to AA with most of his offensive production coming in the form of his inflated BB%. He needs to start being more aggressive and utilize his power.

Alfonsin Rosario - OF - CLE

Previous Rank: 96

The contact rates tanked following his promotion to AA and he is striking out at an astronomical clip. I like the power and speed blend, but he needs to put more balls in play.

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