Top 15 MLB Prospects in Complex Leagues 2025

The Florida and Arizona Complex Leagues wrapped up on Monday with the Angels winning the Arizona championship and the Blue Jays taking the Florida title. The three-month season is officially done, and though we saw quite a few players move up to full-season affiliates throughout the season, we are just now seeing many get promoted.

So, who were the best performers at the complex level and what can we expect from each moving forward? Let’s break down the top 10 prospects.

Top Hitting Prospects at Complex Level

1. Tyson Lewis, SS, Cincinnati Reds, 19

Lewis was the best prospect in either complex league this year, in my eyes and the data. Blasting six home runs and stealing 19 bases, Lewis slashed an impressive .340/.396/.532. He moved to Single-A Daytona over the weekend and already blasted a home run that left the bat with a 111 mph exit velocity.

A premium athlete, Lewis might have close to 70-grade speed, and the power looks comfortably plus for the young 19-year-old. With exit velocities up to 119, which you can throw out if you want, Lewis has plenty of other batted balls above 110 mph, with his second highest being 115 mph.

The few knocks you can peg about his profile might be batted ball angles, as Lewis has a ground ball rate north of 50 percent and a low pull rate. Despite it, the barrel rates are still strong. The hit tool is lagging a bit more than we would like to see, but Lewis is making up for it with the quality of his batted balls. This is a legit prospect with potential plus power and 70-grade speed.

2. Jhonny Level, SS, San Francisco Giants, 18

Level signed in January 2024 as one of the younger players in the class. He turned 18 at the end of March 2025, but looks advanced beyond his age at the plate. He is a bit undersized, but given his age, his body can change a lot.

Putting up impressive numbers in the DSL in 2024, Level came stateside, and the strong performance continued at the complex. The season ended with nine home runs and 17 stolen bases and a strong .288/.375/.493 slash line. The exit velocities were quite strong as Level had exit velocities up to 112 mph.

The approach is strong, the contact skills are good, and Level gets to ideal launch angles often. Level shows the ability to hit from both sides of the plate, has impressive athleticism, and makes the most of his average foot speed.

3. JD Dix, SS, Arizona Diamondbacks, 19

Wisconsin prep bats don’t always get a ton of love, but that changed this year with Dix, as the Diamondbacks selected him as the 35th overall pick in 2024. Dix is a physically gifted shortstop standing at 6’2”/180 who is probably taller and stronger than that list. Having a high waist and an explosive lower half, Dix generates power with ease from both sides of the plate. He looks natural from both sides of the plate and generates a ton of bat speed from both.

A natural athlete, Dix has posted strong run times, with his best 60-yard dash at 6.48 seconds. He has already been clocked as a plus runner this year. Dix lifts the ball with ease, hitting a ton of line drives and fly balls to the outfield gaps. While he did miss time with a torn labrum during his senior year, he looks back to fully healthy.

After a slow start to the complex season, Dix turned it on. From May 15 until now, a sample split between the complex and Single-A, Dix has a slash of .337/.419/.480 with 21 extra base hits in 52 games.

Dix is showing good contact skills and a strong approach, while putting up exit velocities up to 110 mph. The launch angles are good and Dix can get to the pull side frequently.

4. Chase Harlan, 3B, Los Angeles Dodgers, 19

Harlan was one of the premier bats among the prep hitters in the 2024 MLB Draft. The Dodgers selected him in the third round and gave him a bonus of $1.75 million, which is over $1 million north of slot.

Having a large, filled-out frame at 6’3”, Harlan is an exceptional athlete who posted solid run times and splits. Harlan has a strong arm at third base and looks like your prototypical player for the hot corner.

At the plate, Harlan utilizes a toe tap and short stride and gets into his lower half. His frame and natural strength help generate good bat speed and big exit velocities. He was one of the most consistent hitters all complex season, slashing .288/.395/.500 with seven home runs on the year, including one below in Single-A.

5. Ching-Hsien Ko, OF, Los Angeles Dodgers, 18

Ching-Hsien Ko might be the most intriguing prospect in baseball right now. The Dodgers followed the path they took with Hyun-Seok Jang, signing Ko mid-season as a 17-year-old to a $750k deal. He is half Taiwanese Indigenous and half South African.

Upon signing, the organization sent him straight to the Dominican Summer League. There he slashed .241/.450/.448 with a home run and three doubles in nine games. I probably would not put a ton of stock into Ko’s performance there just given the culture change and the short time to even settle in.

Ko has plenty of projectable power on his 6’3” frame. Already strong at 215 pounds, Ko has shown the ability to hit some big-time home runs and has the look of a 20-25 home run bat.

His 2025 season has been highly impressive. Ko has been on base in 53 of 56 games this year and has a slash of .370/.496/.534 with more walks than strikeouts. He is a passive hitter and works deep into counts, but it hasn’t affected him as Ko works walks, but also gets plenty of hits in two-strike counts.

Ko’s prospect stock is moving up, and when the power comes along it could soar.

6. Emil Morales, SS, Los Angeles Dodgers, 18

Morales was one of the best hitters in the DSL in 2024, putting up big exit velocities and hitting 14 home runs while having a 186 wRC+. While the whiffs have gone up as Morales came stateside, the power and surface numbers are still there. In the complex, Morales blasted nine home runs and slashed .300/.383/.498.

From the start of June to the end of the complex season, Morales slashed an impressive .338/.434/.524 with 17 extra base hits in 38 games. While the strikeout rate of 27 percent is higher than we want to see, it has been maintained near that mark, which is good. 

Morales does have some holes in the swing, especially against breaking balls, so that will be something to watch. The athleticism is good, and he moves pretty well at shortstop. If he fills out the frame more, he could shift to third base, but he has the arm to play there.

7. Juneiker Caceres, OF, Cleveland Guardians, 17

Caceres spent nearly all of the 2024 DSL season as a 16-year-old but did not perform like one. While we take DSL surface numbers with a grain of salt, Caceres put up an impressive .340/.425/.504 slash with 17 extra-base hits in 40 games. He walked more than he struck out and showed impressive traits for someone 16 at the time.

While he did not hit a home run, Caceres put up exit velocities as high as 108 mph and put the ball in the air nearly 70 percent of the time. The biggest thing for Caceres will be learning to pull the ball more often.

Those things improved this year as Caceres continued to put up strong results at the complex. Injury did end his season early after just 160 plate appearances, but Caceres slashed .289/.419/.469 with three home runs and five stolen bases.

Caceres might be a bit passive, but the approach and contact skills are strong. Growing into more power this year, the exit velocities did take a jump. On a talented Guardians ACL team, Caceres is the one I would bet on.

8. Roldy Brito, 2B/CF, Colorado Rockies, 18

Brito is a complex-level prospect that did not get another love this season, but was consistently one of the top performers in Arizona. Turning 18 at the beginning of the season, Brito hit and hit some more, putting up a .368/.445/.555 slash line.

While ground balls limited the game power, Brito hit just three homers, but he did have 13 doubles and six triples in 51 games. Brito posts strong contact rates and has been clocked as a 70-grade runner according to Josh Norris of BA, who scouted him in person.

When you look at the frame, you see impressive athleticism, but there is room to add power. We will see if the aggressive approach plays as he moves up and what kind of power he can get to, but Brito is a fun profile to bet on.

9. Dauri Fernandez, 2B, Cleveland Guardians, 18, CPX

A young 18-year-old, Fernandez, signed with Cleveland in January 2024. A strong DSL season in 2024 saw him post a .287/.370/.407 slash with a homer and eight stolen bases. Having a smaller frame at 5’9”/150, Fernandez has not tapped into much power yet, but again, he just turned 18 years old.

Jump to the complex in 2025, and Fernandez put up a strong performance. The contact skills are as impressive as anyone in the league, and Fernandez is slashing .333/.398/.558 with six home runs and 16 stolen bases. He has lowered his ground ball rate from the DSL and does a good job of getting to the pull side. He is sure to pop up in statistical-only models.

Despite the surface numbers looking really good, there are some concerns with the exit velocity data. Fernandez is probably a present 20-game power based on the exit velocities that could grow into 30-grade power with time. As good as his contact skills are, his teammate Juneiker Caceres has similar contact rates and way better tools.

Top Pitchers at the Complex

1. Johnny King, LHP, Toronto Blue Jays, 18

King continues his ascent up prospect rankings for good reason. After bumping to Single-A from the complex in late June, King has shown an inconsistent feel for command, but hasn’t let that affect his results.

King took a step forward in velocity this season and has topped around 97 mph, and has averaged 94-95 mph. He creates upwards of 17 inches of IVB from a 5’6” release height and gets good horizontal movement as well.

The curveball is a hammer of a pitch, having 10-12 inches of glove-side movement and up to negative 13 inches of IVB, showing strong depth. It works around 80 mph, and misses bats at a high clip.

King rounds out the arsenal with an upper-80s changeup that has strong arm-side fade. It ranges from 13-20 inches of fade, and while showing some inconsistencies in movement, it is a solid pitch.

2. Kendry Chourio, RHP, Kansas City Royals, 17

Have you ever seen a 17-year-old bump from the DSL to the Complex to Single-A in the matter of a month during their first pro season? That is what the Royals just did with Chourio, as he is slated to make his full-season debut in Columbia this Thursday.

The arsenal has ticked up, and Chourio now reaches 96 mph on his fastball and routinely works into the mid-90s. The pitch creates a good ride and run, and his changeup plays well off of it with late depth and fade.

Chourio throws two variations of his breaking ball with his curveball having more downward movement, but solid two-plane break. The slider has tight spin and does have good horizontal movement.

On top of a solid arsenal, Chourio has a strong command and has walked just two percent of batters faced this year. There is definitely something here, but we have to remember this is a very young arm.

3. Ethan Dorchies, RHP, Milwaukee Brewers, 18

The Brewers snagged Dorchies in the tenth round of the 2024 draft, giving him a bonus right around slot. Not a highly regarded prep arm, Dorchies was committed to the University of Illinois-Chicago, but the 6’5” righty is showing that more schools and pro teams should have been in on him.

A dominant stint at the complex level earned Dorchies a promotion to Single-A. Between both levels, he has tossed 51 innings and has a 1.40 ERA with a 30 percent strikeout rate.

Dorchies has seen solid improvement on his fastball over the last few years. While he sits 92-93, the four-seam reaches 95 mph. It does not have standout traits, averaging around 15 inches of IVB from a 5’5” release height, but it does come in with a solid VAA and nearly seven feet of extension. Dorchies can also mix in a sinker with good running life. There is still plenty of projection on his frame as well to add velocity.

From a secondary standpoint, Dorchies throws a solid slider and changeup. The slider sits in the low-80s with around seven inches of horizontal break and late depth. From the lower release height, it is a tough pitch for hitters to pick up. The changeup shows solid fade, and Dorchies will even mix a cutter and a two-plane curveball.

4. Argenis Cayama, RHP, San Francisco Giants, 18

After a strong DSL showing last summer, Cayama came to the complex and got even better. Tossing 48 innings for the Giants complex level team, Cayama posted a 2.25 ERA with a 28 percent strikeout rate to a nine percent walk rate.

Cayama works his fastball in the low-to-mid 90s consistently and runs it up to 98 mph. He mixes in two fastball shapes with a four-seamer and a two-seamer. The slider has good depth and sweep in the low-80s, almost playing like a curveball.

The changeup is strong when he throws it, having good depth and fade, working in the mid-to-upper 80s. It has solid enough velocity separation off the fastball to work and Cayama commands his pitches exceptionally well.

When Cayama is not missing bats, he is keeping the ball on the ground, having a 63 percent ground ball rate. This is a strong arm that needs to be in Single-A right now.

5. Esteban Mejia, RHP, Baltimore Orioles, 18

Mejia has been dominating since he signed last year from the Dominican Republic. Signing with the Orioles for $175k, Mejia looked like one of the best pitching prospects in the DSL, posting a 3.25 ERA across 27.2 innings. Sure, it was a small sample, but Mejia punched out 44 batters and walked 15. Command was an issue at times, but the stuff is there.

The fastball has ticked up and is working in the 97-98 mph now. It has a strong shape as Mejia creates a good ride on the pitch and blows it by rookie-level hitters. Touching 101 mph with a four-seam and sinker variation, most hitters can’t contest.

The slider sits in the upper-80s with high spin rates, but a strong movement profile, generating plenty of swing and miss. The changeup is firm, sitting 88-89 mph, but has good traits, showing late fade and tumble.

The arm angle creates tough spots for hitters, and Mejia hides the ball well. He is highly athletic and still has plenty of projection on his frame. The velocity likely only increases, and if Mejia can find more control, he could be a mid-rotation starter if all pans out right.

The hype is absurd right now on him, given the stuff, but my concern is still control. After his first start out of the All-Star Break ended with three walks and just two outs recorded, Mejia walked three last yesterday, but it was over three innings. He did show off the stuff and struck out six batters, but what you don’t see in the box score was three hit-by-pitches.

I am a bit lower on Mejia than most, just due to the command/control issues.

Other Top Prospects Who Moved Up Quickly

Edward Florentino, Pittsburgh Pirates

Nate George, Baltimore Orioles

Rainiel Rodriguez, St. Louis Cardinals

Luke Dickerson, Washington Nationals

Devin Fitz-Gerald, Texas Rangers

David Shields, Kansas City Royals