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Top 20 Boston Red Sox Prospects for Dynasty Leagues

By Trevor Hooth
Roman Anthony Boston Red Sox Prospects Rankings

The Red Sox have been busy this offseason amidst an arms race in the talented AL East. They’ve done a really good job adding to their rotation, trading several prospects for Garrett Crochet and signing Walker Buehler and Patrick Sandoval. They’ve also added to their bullpen as they are hoping to improve on their .500 season from 2024. What did all this activity do to the Red Sox Prospects rankings?

Prior to these trades, they had arguably the top farm system in baseball. After sending away a handful of prospects to acquire Garrett Crochet, they still have the top of their system very well intact. This is still a very strong system, but it did take a hit by losing Braden Montgomery, Kyle Teel, Chase Meidroth, Elmer Rodriguez-Cruz, and Wikelman Gonzalez

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Top 20 Boston Red Sox Prospects for Dynasty Leagues

1. OF Roman Anthony, Age: 20

Roman Anthony is arguably baseball’s top prospect, or he will be with a couple of impending graduations early in 2025. He’ll turn 21 in May and should have a chance to make the Red Sox out of camp after posting a 162 wRC+ in 131 Triple-A at-bats in 2024. Between both levels he played at last season, Anthony slashed .291/.396/.498 with 18 home runs and 21 stolen bases. The 79th overall pick in the 2022 draft has skyrocketed to the top of real-life and fantasy prospect boards with his ability to hit, hit with power, and steal bases. The deterrents to his potential big league role next season are that he is not currently on the 40-man roster, and also the Red Sox outfield still has Jarren Duran, Masataka Yoshida, Wilyer Abreu, and Ceddane Rafaela as options. Talent rises to the top, so if Anthony is the guy then he will play, but Boston is in a place where they don’t have to rush him to the big league roster if they feel like he isn’t ready at the outset of 2025.

2. 2B Kristian Campbell, Age: 22

Another big riser, Kristian Campbell slashed .330/.439/.558 with 20 home runs and 24 stolen bases across three different levels in 2024. He was the 132nd overall pick in 2023. Much like Anthony, Campbell can run, provide power, and should help in both average and OBP leagues. He will also need to be added to the 40-man, but he might have a clearer path, competing with David Hamilton and Vaughn Grissom for second base reps. Campbell has just 85 Triple-A plate appearances to his name, so Boston may want to go back to start next season. Either way, Campbell should be up at some point during the 2025 season.

3. SS Franklin Arias, Age: 19

Before the Garrett Crochet trade, Franklin Arias was borderline top-five for this system. After the trade, he’s top three or four. Debatably, Marcelo Mayer could take this spot. Arias is here because his pure upside is higher than Mayer’s, which, for me, surpasses Mayer’s proximity and floor in this case. Arias hit .309 between the Complex League and Single-A as an 18-year-old in 2024, while hitting nine home runs and stealing 35 bases. His age-to-level plus the fact that he can still add to his frame, which could increase his power, make him a really intriguing prospect.

4. SS Marcelo Mayer, Age: 22

Dating back to his pre-draft days Marcelo Mayer had a swing like butter. Smooth. It’s an aesthetically pleasing swing that can produce some pop. Mayer spent all of 2024 in Double-A where he hit .307 with eight home runs and 13 stolen bases. It’s likely that he gets a chance with the Red Sox at some point in 2025 if he can stay healthy, which has been a big problem for Mayer thus far in his career. Still, he’s just entering his age-22 season. If he can remain healthy then he should be able to recapture some of his former glory. He has the skills to help with home runs, average, and on-base percentage, and he might be able to contribute double-digit steals as well.

5. RHP Luis Perales, Age: 21

Luis Perales’ season ended early in 2024 when he underwent Tommy John Surgery that will keep him out for a large portion of 2025 as well. Prior to that, he threw 33.2 innings between High-A and Double-A where he posted 14.97 K/9 and 3.21 BB/9 with a 2.94 ERA. The surgery adds a question mark, but with his consistently high whiff numbers, the upside is very high. Perales has the chance to be a front of the rotation arm. When he comes back late next season, or even in 2026, he’ll look to reclaim the hype he had around his name prior to getting hurt.

6. SS Yoeilin Cespedes, Age: 19

A DSL standout in 2023, Yoeilin Cespedes kept the momentum going when he came stateside in 2024 by hitting .319 in Complex play. He added five home runs, too. A hand injury interrupted a would-be debut in Single-A at the end of the season. Cespedes’ reputation is as a bat-first prospect. He’s done nothing to prove otherwise to this point in his young career. Long term he may not wind up as a shortstop, but if his bat plays then he will continue to be dynasty-relevant. Cespedes should be healthy to start 2025 where he’ll finally get to debut with Salem.

7. OF Miguel Bleis, Age: 20

The pure raw power that Miguel Bleis shows helped him to be a main target for the Red Sox during the 2021 cycle. After a standout performance in the Complex, it seemed Bleis was destined to continue to rise up the ranks. However, he sustained an injury after just 142 plate appearances in Low-A in 2023. Across both levels, he stole 38 bases and chipped in 11 home runs, though he hit just .220. Blies represents an interesting power/speed combination if he can improve his contact skills. He doesn’t strike out at alarming rates, but he isn’t consistently making solid enough contact.

8. OF Jhostynyxon Garcia, Age: 22

The Red Sox decided to protect Jhostynyxon Garcia after a breakout season that saw him hit .286 with 23 home runs and 17 stolen bases between Single-A, High-A, and Double-A last season. He posted the lowest strikeout percentages of his career, but that came with a significant drop in walks. His more aggressive approach panned out in terms of statistical output. Being added to the 40-man roster is a great step for his career, but he may not see the big leagues in 2025 without some injuries. The outfield depth is pretty solid at the moment, and Roman Anthony would theoretically be first in line for any opening.

9. RHP David Sandlin, Age: 23

Boston acquired David Sandlin from the Royals in return for John Schreiber. Sandlin has some really good stuff that led to giant strikeout rates, as evidenced by his 12.87 K/9 between High-A and Double-A in 2024. His walk rates were low, too, but his ERA was north of 5.00. That is due, in large part, to his 2.20 HR/9. There is a significant amount of risk with a pitcher who keeps surrendering the long ball at those rates consistently over the course of his career. If he can keep the ball in the yard, his ceiling is enormous.

10. SS Mikey Romero, Age: 20

Mikey Romero was selected by the Red Sox in the first round back in 2022. He spent 2024 in High-A and Double-A where he hit .271 with 16 home runs. Of his 362 plate appearances last season, 74 of those came in Double-A, but six of his home runs came from them. He found a power surge after his promotion. It was good to see his power begin to play, but prior to 2024, he hit just a single home run. Being able to show off that power as a 20-year-old in Double-A is a great sign. He could continue to break out in 2025.

11. RHP Yordanny Monegro, Age: 22

The Red Sox have made several moves this offseason that have shaken up their farm system. Yordanny Monegro winds up just outside the top 10 thanks to an 11.18 K/9 in 66 High-A innings last season. His big curveball is a legitimate weapon that can get whiffs regularly. He has yet to pitch above High-A, but he should get that chance in 2025. If he continues to show the swing-and-miss stuff then he should continue to climb the prospect rankings. There is plenty of risk associated with Monegro, but I see a lot of upside.

12. LHP Payton Tolle, Age: 22

A former college two-way player with Wichita State, Payton Tolle focused more on hitting after transferring to TCU. The Red Sox drafted him in the second round of the 2024 draft. He has a big 6-foot-6 frame that should help him absorb the workload of a starter. Tolle’s outcome does have a significant amount of variance because he could wind up a reliever. Either way, when he debuts in 2025 we will be able to know more.

13. OF Allan Castro, Age: 21

Allan Castro is a switch-hitting outfielder who the Red Sox signed as an international free agent in 2019. In 2024 he was hitting .243 with 14 home runs and 11 steals in High-A before a promotion to Double-A. Things didn’t go as well there. In a short 28-game sample, Castro hit .180. He’s consistently had walk rates over ten percent at each level he’s played at. It would make sense that Castro gets another crack at Double-A in 2025 where he’ll look to prove he can make more contact. As is, he hits some home runs and can steal some bases.

14. RHP Hunter Dobbins, Age: 25

Another member of the Red Sox 40-man roster who should be able to see some time in 2025 is Hunter Dobbins. That being said, Boston’s rotation is very deep right now. That may cause Dobbins to have to fill in a bullpen role. Still, he has been good in the upper minors, so he’s a name worth monitoring in this system. It’s likely he heads back to Triple-A after posting a 3.08 ERA with 22 strikeouts and nine walks in 20.2 innings at the level in 2024.

15. RHP/SS Conrad Cason, Age: 18

The Red Sox went over slot for their eighth-round pick to sign a potential two-way prep player out of Georgia. By every indication, Conrad Cason will get the chance to move forward as both a pitcher and hitter. On the mound, he touches the upper-90s with his fastball with a promising changeup. As a hitter, he is a good defender with raw skills at the plate, but potentially some power to lead his offensive profile. He will debut in 2025.

16. RHP Dalvinson Reyes, Age: 18

As a 17-year-old in the DSL, Dalvinson Reyes threw 17 shutout innings with a 10.06 K/9 with 1.06 BB/9. This is a very small sample, and stats from the DSL are largely unreliable, but those numbers certainly pop out for a player who will be 18 for the entirety of the 2025 season, where he should come stateside and pitch on the complex.

17. LHP Connelly Early, Age: 22

Armed with a bevy of offspeed pitches, Connelly Early was able to strike out 138 batters in 103.2 innings between High-A and Double-A while posting a 3.99 ERA. The southpaw has been able to post very high strikeout numbers at each stop since being Boston’s fifth-round pick in 2023. He profiles as a backend rotation junkballer with a fastball that tops out in the low-90s. His 48 strikeouts in 36 innings in Double-A is a good sign, though.

18. RHP Juan Valera, Age: 18

Juan Valera threw 23 innings in Single-A as an 18-year-old where he struck out 28 batters and walked 14 with a 1.99 ERA. He uses an upper-90’s fastball and a great slider to generate whiffs. If he can keep his walks down then his electric stuff should continue to play when he, likely, returns to Single-A to begin the 2025 season. He’s a name to monitor in dynasty leagues moving forward after his solid showing to end the year.

19. OF Nelly Taylor, Age: 21

Boston took Nelly Taylor in the 11th round in 2023, but he didn’t debut until 2024. In his first taste of pro ball he slashed .233/.337/.376 with eight home runs combined between Single-A and High-A. That includes a 13.3 percent walk rate and 25.1 percent strikeout rate. His carrying tool is plus speed that helped him to steal 33 bases last season. While it remains to be seen if he’ll hit enough, when he’s on base he’s a threat to steal and that helps him to provide fantasy value.

20. SS Nazzan Zanatello, Age: 19

Nazzan Zanatello sneaks into the last spot in this list because of a high ceiling thanks to his power and speed. There is still a long way to go to get there, however, as evidenced by his hitting .156 with a 43.8 percent strikeout rate in Single-A. He also hit seven home runs and stole four bases. On the plus side, he walked at a 12.2 percent clip. The 2025 season will be a big one for Zanatello, who will need to show he can make more contact and live up to his lofty ceiling.

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