Fredrick's June Top 150 Non-Debuted Prospect Rankings

Image Credit: Mike Sirota - Photo by Bill Mitchell

By Tyler Fredrick · June 3, 2026 · Updated October 11, 2026

Welcome to my June edition of my non-debuted top 100, only this time we’re going out to 150. Before going into a handful of prospects, I want to add a few notes on my process. I definitely believe that proximity matters, guys with huge ceilings get a boost, but I’m not afraid to drop a guy for not believing in something important, like their hit tool or their ability to lift the ball, even if they have huge tools. It’s also important to note that the number itself isn’t the most important part. Some of these guys are so close to each other and could easily be swapped, especially as you get further down on the list. On top of that, since this is a non-debuted list some of these rankings may look extremely aggressive. Keep in mind there are 20+ guys that have made their debut since the season began that haven’t lost their rookie eligibility that would. Finally, I’m just a guy that loves baseball. I’m not perfect and nobody is right about every prospect they write about. I'm no different. I do feel like I do a good job though and have had a good amount of hits in the past so I hope I can continue that. Thanks to all who read!

#2 Leo De Vries, 19, ATL, SS - Some may look at the .279/.362/.395 slash line and be disappointed in the 19 year old but I can’t help but be impressed. His contact rate is above average, he’s stolen 16 bases, his pull rate is fantastic, and while he’s hitting less fly balls than he has previously, it’s not a concerning amount. He has all the tools you could want from a hitter and that’s enough for me to put him at #2. #14 Mike Sirota, 22, LAD, OF - An unfortunate injury ended his 2025 before we could see him tested in AA. He’s finally there and he’s picked up right where he left off, hitting .349/.484/.584 in 12 games. He’s got legitimate power, a fantastic plate approach, and the hit tool has continued to hover around average, which is exactly what you want to see as he moves through the minors. He’s done nothing but crush the ball since and is one of my favorite prospects. #21-29 - The 20’s range is full of athletic shortstops with sky high ceilings. Culpepper leads them all at the moment due to proximity but you could justify any one of them topping this group. Rainer has struggled with K’s this year but his power and athleticism makes me want to hold firm on his ranking. Arias looks to be breaking out and has rocketed up the board but I want to see him do it outside of the juiced environment that is AA before putting him any higher. #35 Anthony Eyanson, 21, BOS, SP - If you read my prospect risers and bold predictions articles before the season started then you would know how much of a fan I am of Eyanson and he has not disappointed me. He dominated A+ and while the numbers haven’t been quite as eye-catching in AA, the 2.00 ERA and 1.00 WHIP are hard to complain about. My bold prediction was that he would tear up the minors and debut in the bigs before the season ended, and while that looks a bit more difficult due to the Red Sox struggles, it’s also right on track at the moment. #39 Josiah Hartshorn, 19, CHC, 1B/OF - Ranking Hartshorn as high as #40 is very aggressive but I feel good about it. It’s not often that we see a prospect his age display a combination of contact and plate discipline to this level. Add power on top of that and you have the makings of an elite hitter. His impressive play after recently being promoted to A+ has only solidified this ranking to me. #49 Karson Milbrandt, 22, MIA, SP - Milbrandt was another of my favorite pitching prospects and also featured in my prospect risers article. In it I said that he could be a big breakout if he could keep his walks down and that is exactly what we’ve seen this season.The walk rate sits at 9.3% after 47 innings and as a result we have a 1.34 ERA with an amazing 38.3% K rate. I want to see him keep the walks down over a larger sample before putting him any higher but he’s one of my favorite prospects in the minors right now. #51 Xavier Neyens, 19, HOU, 3B - The .245/.410/.396 slash line isn’t all that exciting at first glance but I’m happy with what I’ve seen so far from Neyens. The power was never a question but the hit tool absolutely was. The K rate still sits at 33.1% but that seems to be the result of an extremely passive approach rather than the hit tool, as his contact rate sits at 70.5% currently. The passivity is a problem but I’d rather see that than him constantly whiffing up there. It’s enough for me to rank him aggressively. The power ceiling is that exciting. #61 Cooper Ingle, 24, CLE, C - The Guardian’s Patrick Bailey trade still has me a bit confused because Ingle is looking fantastic in AAA. He has been dominating, hitting 9 homers and putting up a .316/.467/.615 slash line. Despite the power he is showing, he likely won’t be a big homer guy. The 28.1% HR/FB is unsustainable and the EV numbers he’s putting up aren’t very impressive. However, the hit tool, the impressive plate discipline, and proximity to the bigs makes him a high floor prospect and I’m ok with ranking him this high despite a limited ceiling. Anyone in an OBP league should be even more excited. #69 Kevin Alvarez, 18, HOU, OF - At just 18.25 years old, Alvarez is putting up above average numbers in his stateside debut. The contact numbers have been impressive, he’s shown real power so far, and at 6’3” with a projectable frame, there’s room for even more here. I wouldn’t be surprised if we look back on this ranking a year from now and feel that it was too light. #84 Tate Southisene, 19, ATL, 2B/SS - Southisene’s late 2025 debut was horrendous. He was extremely overmatched and it led to an ugly .219/.242/.297 line and 40.9% K rate. He looks different this year though, the contact rate is up to 76.1%, he’s striking out 20.7% of the time, and is hitting for both contact and power. Add 35 stolen bases on top of that and you’ve got the recipe for the ideal fantasy baseball player. I’m a huge fan. #95 Murf Gray, 22, PIT, 1B/3B - Gray is another of my favorite prospects, as you probably know if you’ve kept up with my stuff. He was finally promoted to A+ ball and has continued to crush the ball, already hitting 5 homers and showing that the power is absolutely real. The K rate has jumped a little bit and that’s something to watch but I’m ok with being the high man here. #101 Andrew Fischer, 22, MIL, 3B - I assume most will disagree with this ranking. The 16 homers and 157 wRC+ look great on the surface but the 34% K rate and 63.2% contact rate are a huge problem for an SEC bat playing in A+. It’s too much for me to ignore and it’s enough for me to drop him out of the top 100. #114 Cole Carrigg, 24, COL, OF - Carrigg’s numbers could point to a breakout but I’m not sure I’m a believer. The 88.4 average EVand 37.9% hard hit rate isn’t bad but isn’t that exciting and the 103.6 90th% EV is even less so. The hit tool has shown improvement this season but there is still a lot of chase here and could be an even bigger problem in the bigs. Playing in Coors may help but all this is coming in the hitter friendly PCL and it’s just not a profile that excites me. #122 JT Quinn, 22, BAL, SP - Baltimore took the college reliever 69th overall and seemed to believe that they could turn him into a starter. So far so good, as Quinn has been throwing more strikes than ever while performing extremely well in A+ ball. The 10.5% walk rate is on the edge of the danger zone so it’ll take him doing this over a longer period of time for me to raise him any higher than this. The stuff is legit though and there’s some real potential here. #135 Robert Arias, 19, CLE, OF - Arias was having a breakout year and was going to make my top 100 before a horrific injury ended his season the other week. The diagnosis looks to be a dislocated and fractured ankle and the team has said that he is set for surgery this Friday. I still like the tools and will keep him here on the list but I feel terrible for the kid and hope the recovery goes well for him. #137 Tyson Hardin, 24, MIL, SP - News from this morning is pointing at Hardin receiving his big league debut later today against San Francisco. Since he still won’t debut by the time this is published I will leave him on the list. He got hit pretty hard in the hitter friendly AA environment that we’re seeing but bounced back well in his 3 AAA starts so I’m included to give him a bit of a pass here. The stuff isn’t overpowering but the command is good and the changeup and slider are solid pitches. It’s definitely a back end type guy but there’s some interesting stuff here and I’m interested. #150 Yohandy Morales, 24, WAS, 3B - Morales has been on fire in AAA this season and I wouldn’t be surprised if he were called up to the bigs in the near future. He’s always been an interesting prospect because there is certainly power there, it’s just a shame that he hits so many ground balls. The 53% GB rate this year and 4.2 launch angle has always been a problem and he hasn’t seemed to make any improvements in the three years we’ve seen him in the minors. I’m putting him here due to proximity and the raw power but I wouldn’t be surprised if he ends up as a AAAA guy. Honorable mentions: Kendall George, Chase Harlan, Juan Sanchez, Ching-Hsien Ko, Landon Harmon, Kaleb Wing, Billy Carlson, Christian Oppor, Marco Dinges, Yhoiker Fajardo