Top 100 Fantasy Baseball Prospects - Dynasty Rankings for Non-Debuted Prospects (August Updates)

Kevin's updated top 100 fantasy baseball prospect rankings for MLB prospects yet to debut in the majors. His August 2025 dynasty prospect rankings for fantasy baseball.

It's time for another update to my dynasty fantasy baseball prospect rankings for August of the 2025 season. This is the first rankings update since the MLB Draft so it'll have my top FYPD players.

This fantasy baseball prospect rankings list will only have non-debuted prospects. I'm also re-sharing some of my general prospect ranking philosophies for those who are new to my rankings.

• Upside over proximity: the best prospects are often closer to the majors than they seem, and the low upside guys will always have factors that block their chances of being too fantasy relevant
• I will probably be lower on your favorite pitching prospect than most lists: I've just seen this film before, and I didn't like the ending too many times
• I am a sucker for age-to-level production- there's a reason why the top NBA draft pick every season is a college freshman or teenager playing overseas against grown men, similar analysis can be utilized to value baseball prospects
• What you did as an amateur matters very little to me once you have a solid sample size of professional games under your belt

I'd imagine this last bullet has made me less aggressive on where I have the FYPD players in my rankings than other rankers. My highest ranked prospect is at 35 and I only have ten in the Top 100. For more thoughts on the top players for FYPD, check out my Top 30 from last week.

Fantasy Baseball Prospect Dynasty Rankings: Top 100

Prospect details can be found in the rankings table below, with some thoughts on a few exciting prospects.

Regarding risers and fallers, some prospect risers and fallers have tangible things they've done since the last ranking to justify that change.

However, some risers and fallers are just me recalibrating my thoughts on a prospect. I won't hesitate to adjust a player's ranking, even if it might make my previous ranking "look bad". Let's get to it:

A Big Top Pitching Prospect Shake-Up

For the last few months, I've had a top tier of pitching prospects of Bubba Chandler and Andrew Painter (along with Chase Burns). While I'm still high on both guys, it's hard to not be a little disappointed with how their seasons have gone.

After a strong start to the season, everyone was expecting the Pirate to call up Chandler but he has remained in the minors and has really regressed the last few months. Painter has struggled a bit to bounce back from his Tommy John Surgery.

In this update, I moved two pitchers in front of them- Jonah Tong and Thomas White. I talked about Jonah Tong in my last update and he continued to dominate Double-A before getting the bump to Triple-A this week.

On the season, Tong had a 1.59 ERA in 102.0 innings at Double-A with an absurd 40.8 percent K-rate with an 11.1 percent BB-rate. His first start in Triple-A tonight was a lot of the same.

Mets No. 2 prospect, RHP Jonah Tong was fantastic in his Triple-A debut

5.2 IP, 3 H, 0 R, 2 BB, 9 K. He threw 90 pitches (59 strikes) and generated 18 swing & misses

His fastball topped out at 98 MPH pic.twitter.com/4htCHUzlgN

— Joe DeMayo (@PSLToFlushing) August 17, 2025

Thomas White is a Marlins pitching factory strikes again situation as he has been absolutely dominant over the last two years in the minors. Last season at only 19 years old, he had a 2.81 ERA with a 20.0 percent K-BB rate in 96.0 innings across Low-A and High-A.

White started the year off back in High-A and was again great with a 2.83 ERA and 24.8 percent K-BB rate. I had someone on Reddit ask me why I was so low on White a couple of months ago after an update and I said I liked the talent but wanted to see what he could do in Double-A before moving him up.

Since being promoted to Double-A, White has been even more dominant. He had a 2.05 ERA with a 27.6 percent K-BB rate and he had another great start tonight.

Thomas White strikes out back to back batters with the bases loaded to end his start in the 5th.

5 IP, 4 H, 1 ER, 2 BB, 9 K, 100/62 P/S

White has struck out 39 batters in his last 20.2 IP. 6 walks.#Marlins | @BlueWahoosBBall pic.twitter.com/4yRlRjtaoU

— Fish on the Farm (@marlinsminors) August 17, 2025

I don't think there is a clear cut top pitching prospect right now like there has been in the past but I think Tong and White have been so good this year that they deserve to be not only at the table but at the head of the table with the struggling Chandler and Painter.

No. 15: Edward Florentino, 1B/OF, Pittsburgh Pirates

There have been two prospects this season that I would consider rocket ship prospects. These guys came from relative obscurity to becoming elite dynasty prospects in a short period of time. The first is Luis Peña who is a top five prospect for me.

The other is Edward Florentino who was unranked in my first prospect rankings two months ago and is now up to 15.

At only 18 years old, Florentino came into today with a 164 WRC+, 15 HRs, and 32 SBs between Rookie Ball and Low-A. While he moves well for a 6-foot-4, 200 lbs. slugger, he's likely not going to be a huge base stealer in the future but it is promising that he's so willing to run.

He will be making a huge impact with his bat though. His combination of power and hit tool is so impressive for a player his age. He hit another home run today, his 10th in Low-A, and he's walking 14.7 percent of the time while only striking out 22.1 percent of the time on the season.

Edward Florentino gets the Marauders on the board first with his tenth home run!@YoungBucsPIT | #ItAllBeginsInBradenton pic.twitter.com/FmBh6Trnrg

— Bradenton Marauders (@The_Marauders) August 16, 2025

Now is a great time to try and acquire Florentino if you can as real life rankings haven't caught up to his hype train. He's currently not on MLB Pipeline's Top 100 Prospects but everyone will be talking about him very soon.

No. 19: Carson Benge, OF, New York Mets

Few hitters in minor league baseball have been as productive this season as Carson Benge. The 19th overall pick from last season's draft has moved fast through the Mets system as he's easily handled the competition at both High-A and Double-A.

He had four HRs with a 168 WRC+ in High-A before getting the bump to Double-A where his numbers got even better. He had eight HRs with a 184 WRC+ in Double-A.

Carson Benge (NYM) has garnered a ton of buzz lately, and it is totally warranted!

He has been nothing short of exceptional, posting a .953 OPS this season while showcasing formidable tools across the board. He is one of the most complete prospects in baseball! pic.twitter.com/934qSkWBvt

— Thomas Nestico (@TJStats) August 7, 2025

At both levels, he's had an impressive plate approach as he's walking 14.2 percent of the time while only striking out 17.6 percent of the time on the season. He recently got the bump to Triple-A and is making a case for a late-season cup of coffee in Queens.

No. 34: Rainiel Rodriguez, C, St. Louis Cardinals

Another rising young masher in the low minors this season has been Rainiel Rodriguez. After a dominant DSL campaign last season where he had 10 HRs, a 190 WRC+, and more walks than strikeouts, he made his way stateside in 2025 and made his presence felt immediately.

At just 18 years old, he quickly proved himself too good to be in Rookie Ball with seven HRs and a 237 WRC+ in only 80 PAs. He also again walked more than he struck out.

After a little bit of a slow start in Low-A, he's back to mashing and his numbers at the level are again very good, especially given his age. He has a 140 WRC+ with eight HRs and is walking 15.2 percent of the time while striking out only 18.1 percent of the time.

Rainiel Rodriguez launches his 15th bomb of the year. Since July 6th he is slashing .308/.439/.615 with 6 home runs.

I'm convinced he has one of the highest offensive ceilings in the minor leagues! pic.twitter.com/3BcVmsPb00

— Ross Jensen (@RossJensen12) August 15, 2025

I don't consider myself to be an expert on catcher defense but it seems that Rodriguez's bat is going to progress a lot faster than his glove, pushing him off the position at some point in the future. Regardless of where he ends up defensively, the bat is definitely special enough to make him an extremely valuable dynasty asset.

No. 60: Kaelen Culpepper, SS, Minnesota Twins

Kaelen Culpepper is someone who kind of fell under the radar in FYPD's last season. Despite getting taken 21st overall by the Twins, I didn't think Culpepper had the most impressive college career. He only had a 127 WRC+ with 11 HRs and 17 SBs his final season at Kansas State.

He has proven a lot of people, myself included, wrong this season. He has a 149 WRC+ across High-A and Double-A with 18 HRs and 23 SBs this season while striking out 17.1 percent of the time and walking 9.8 percent of the time.

Kaelen Culpepper gets a hanging breaking ball and HAMMERS it for @WindSurgeICT 🔨

The @Twins' 2024 first-rounder is slashing .323/.385/.532 across his first 38 Double-A contests: pic.twitter.com/m3Fkr9cv7n

— MLB Pipeline (@MLBPipeline) August 15, 2025

I expected the solid hit tool and plate approach by Culpepper but I did not see him having this much fantasy juice. He is quickly moving through his minor league career and we could see him in Minnesota sometime next season.

We just have to all pray that he doesn't get Twins-itis and deal with a bunch of nagging injuries like many other top Twins prospects.

Two Exciting Low-A Pitchers

No. 94: Johnny King, Toronto Blue Jays/No. 95: Kendry Chourio, Kansas City Royals

I'm usually super cautious with valuing and rostering low minors pitching prospects. There is just so much risk with them but two young arms have really stood out to me lately and I just can't ignore their upside.

Johnny King was the Blue Jays third round pick in the 2024 draft and he has been kind of overshadowed by Trey Yesavage and Khal Stephen, who the Blue Jays traded for Shane Bieber, so far in their professional careers.

However, King is really starting to put people on notice with what he's doing. In Rookie Ball, he had a 1.13 ERA with an absurd 34.7 percent K-BB rate. Since getting the bump to Low-A, his BB-rate has spiked a bit to 15.8 percent but he's still striking out over 40 percent of batters and has a 1.93 ERA.

JOHNNY IS KING👑@BlueJays No. 5 prospect Johnny King faced one over the minimum in five shutout frames last night👀

Over his last six outings, King owns a 1.17 ERA in 23 innings with 39 strikeouts. pic.twitter.com/ddEbnUhnSt

— Dunedin Blue Jays (@DunedinBlueJays) August 16, 2025

Kendry Chourio is only 17 years old and has a 3.05 ERA in 41.1 innings across the DSL, Rookie Ball, and Low-A. He's striking out an impressive 30.7 percent of batters but what really stands out is that he's only walking an absurd 1.2 percent of batters. He did not walk a single batter in his short 11 inning stint in Rookie Ball.

17-year-old Kendry Chourio is a special pitching prospect in the Royals’ organization

Today in Single-A
5 IP
0 H
0 ER
0 BB
4 K

Three above average offerings in his FB, CB, and CH with room to grow and pinpoint control.

Most advanced pitching prospect I’ve seen at his age,… pic.twitter.com/v6s9rl3IEf

— Owen Hurd (@Owen_FBB) August 15, 2025

A 17 year old flashing this level of command with strong strikeout upside is extremely impressive. Pitchers with strong command like this also tend to move fast through the minors. Would it be that crazy to suggest we could see Chourio get a taste of the majors at only 19 in 2027?

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