Top 20 Fantasy Baseball Prospects - Dynasty Fantasy Baseball Prospect Rankings (June Update)

June 26, 2026

Andy's top 20 fantasy baseball prospect rankings for MLB prospects in the minor leagues. His June 2026 dynasty prospect rankings for fantasy baseball.

With another month of MiLB action in the books, it's time to update our top-20 prospect rankings. As we did in May, I will give my top-20 prospect ranking for dynasty fantasy baseball (all non-debuted) ahead of July.

This month, we saw a former first overall pick begin to showcase his elite raw talent and the two top pitchers in the minor leagues continued to make a case for being viewed as borderline "No. 1" prospects.

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Top-20 Non-Debuted Prospects: June Update

Honorable Mentions

Hitters:

• Lazaro Montes (SEA)
• JoJo Parker (TOR)
• Theo Gillen (TB)
• Joshua Baez (STL)

Pitchers:

• Ryan Sloan (SEA)
• Liam Doyle (STL)
• Jamie Arnold (ATH)

Dynasty Fantasy Baseball Prospect Outlooks

Eli Willits, SS, Washington Nationals

If there were any early concerns about the National taking Eli Willits with the first overall pick in last summer's draft, he began to put those thoughts to rest. Willits spent the first 47 games of the 2026 campaign at the Low-A level, where he posted a strong .300/.418/.500 line with a stellar .918 OPS. During this 47-game stretch, Willits hit six home runs and swiped 29 bags while holding a 23.3% K%.

However, in early June, the Nationals opted to move their budding prospects to High-A after only appearing in 62 career games at Low-A Fredericksburg. Despite not having much experience in the pros, Willits has looked dominant in his first taste of High-A action.

Through 11 games with Wilmington, the Fort Cobb-Broxton HS product has carried a .262/.415/.690 line with a 1.105 OPS. He has launched five home runs, swiped five bags, and held a sharp 9:9 K:BB. While the sample is small, Willits has produced very promising underlying metrics that are only beginning to scratch the surface of his future ceiling.

At just 18 years old, Willits has posted a 17.0% K% and a low 34.3% ground-ball rate in High-A, both of which are improvements over his marks there over the first two months. The profile is still raw, but it appears Willits is not only maintaining his elite contact and speed, but beginning to channel his raw power.

Eli Willits CLEARS the scoreboard 👀

The @Nationals' No. 1 prospect has three homers in three games since his promotion to the High-A @WilmBlueRocks: pic.twitter.com/2GkQ89HQrK

— MLB Pipeline (@MLBPipeline) June 12, 2026

Caleb Bonemer, SS, Chicago White Sox

While Braden Montgomery, Sam Antonacci, Jacob Gonzalez, and even Noah Schultz have all earned the call to the major leagues in the first half, the team's highest-ranked prospect is still in the minor leagues. Bonemer joined the White Sox in the second round of the 2024 MLB Draft but has quickly proven to bae a massive steal at that current draft capital and has firmly earned his position within my top-20 rankings.

The 20-year-old began the campaign at High-A, where he appeared in 61 games before recently earning the call to join Double-A. At High-A, Bonemer held a modest .238 AVG but flashed high-end power, holding a .556 SLG with 15 doubles and 18 round-trippers. He also chipped in 10 stolen bases but carried a high 29.1% K%.

Last summer, he spent most of his time with Low-A before moving up to High-A, where he logged 107 cumulative games with a .281/.401/.473 line with just 12 home runs. Seeing him take a massive step in the power department is very impressive, especially given that this is just his second professional season.

Since moving up to Double-A, Bonemer has yet to go deep but has held a .250 AVG with a strong .400 OBP. During this brief eight-game cup of coffee, Bonemer has held a 10:7 K:BB, (20.0% BB%, 28.6% K%), which is a significant improvement over his marks at High-A.

Overall, the components in his profile worth noting are the broad strides he has made in his approach. In 2026, Bonemer has posted a low 26.5% ground-ball rate and a 54.2% fly-ball rate, both stark improvements over his debut-season rates, especially given his 34.0% ground-ball rate at the lower levels.

A 2026 debut is unlikely, but he is a name to watch closely. Bonemer has 55 future grade power (according to FanGraphs), and he is beginning to show it in a major way. If he can find his power track at Double-A, he could make a strong case to be even higher next month.

Kade Anderson, SP, Seattle Mariners

The debate for the top pitching prospect in baseball continues. Kade Anderson joined the Mariners with the third overall pick in last year's MLB Draft. Anderson has enjoyed one of the most impressive starts to a professional career in recent memory. The Mariners sent the former College World Series MVP straight to Double-A, and the southpaw has looked more than comfortable.

Through his first 12 professional starts, the left-hander has carried an incredible 1.02 ERA with a 0.65 WHIP. Across these 61 2/3 innings of work, the left-hander has struck out 90 hitters while walking just eight of the total batters he has faced. However, when looking more closely at his box scores, one outlier on May 15 has further inflated his ratios (five earned runs, six hits allowed).

Removing this game, Anderson would hold a sparkling 0.31 ERA through 57 2/3 innings of work. When looking at this 11-game sample, he kept the score sheet clean in nine of them and never allowed more than one run in any of these starts.

Anderson possesses an elite pitch-mix that is more than ready for the major leagues. According to FanGraphs, Anderson's fastball has a 70 future grade score and a 70 current grade score, while his slider, curveball, and changeup each have a 60 future grade score. Unfortunately, Anderson happens to pitch on a team that has one of the deepest pitching staffs in baseball.

Nonetheless, Anderson is nearly all but guaranteed to debut later in the second half and is already viewed as an elite dynasty asset among pitchers.

Seth Hernandez, SP, Pittsburgh Pirates

The other budding ace in last year's draft class was far younger and less developed than the LSU standout. The Pirates turned to the high school graduate, Seth Hernandez, at the No. 6 spot out of Corona HS. Despite being only 19 years old, Hernandez's upside is immense, and he has the skill set to emerge as the overall No. 1 prospect in the sport as he approaches the upper minor leagues.

The 6-foot-4 right-hander opened his professional career at Low-A this season. With Bradenton, he logged 28 innings to the tune of a near-perfect 0.98 ERA and a 0.71 WHIP. Over this stint, Hernandez struck out 50 hitters while walking seven batters. This domain starts the season, earned an early ticket to join High-A Greensboro.

After tossing a five-inning shutout in his High-A debut on May 15, Hernandez endured some growing pains, allowing 10 earned runs over his next 16 1/3 innings of work. However, the right-hander has quickly gotten himself back on track, logging 7 2/3-striaght shutout innings with a sharp 10:3 K:BB.

While Anderson may be enjoying more current success, he was a far more polished pitcher entering the professional level. Hernandez is a raw prospect with a potentially high ceiling that outshines the elite among the top infielders who occupy the top-3 positions in my ranking.

According to FanGraphs, Hernandez possesses two pitches that hold 70 future score grades (fastball and changeup), while his slider has a 55 future score grade. The right-hander should be in the mix to join Double-A late in the season if he maintains this pace.

Leo De Vries, SS, Athletics

After a somewhat quiet start to his Double-A season, especially from a power perspective, the top prospect in Sacramento has taken a massive step forward over the last two weeks. Over his last 11 games, the budding superstar has launched four long balls while carrying a stellar 9:8 K:BB (with five stolen bases).

Over his first 54 games of the campaign (April 2 through June 11), De Vries posted a .278/.365/.378 line with just five long balls and 20 stolen bases. On the season, De Vries holds a .277 AVG with a .792 OPS, nine home runs, and 25 stolen bases.

Last summer, De Vries spent most of his time with the lower levels before earning a short 21-game stint in Double-A. In this brief taste, he showed similar upside, posting a .910 OPS with five long balls over 21 games. Seeing him start to regain his power upside is a great sign and should open the door for him to join Triple-A Las Vegas shortly after the All-Star break.

At only 19 years old, De Vries is firmly in the "1A/1B" tier at the top of the rankings with Milwaukee's Jesus Made.

The other major improvement in his production this season is his ability to run. Last summer, he sold just 11 bags over 118 games and has already doubled that with the previously noted 25 (in just 64 games). De Vries has a 60 futures grade in raw and game power and a 50 futures grade in speed, according to FanGraphs.

This is a potential 20/30+ candidate as soon as he reaches the major leagues. A late-season 2026 debut remains in play, especially if the Athletics remain in the Wild Card race.

MLB's No. 2 prospect Leo De Vries homers in back-to-back games for the first time in 2026 ⭐️@Athletics | @RockHounds pic.twitter.com/zZ83op8NaX

— MLB Pipeline (@MLBPipeline) June 19, 2026

Walker Jenkins, OF, Minnesota Twins

Walker Jenkins is healthy and once again showcasing why he is a borderline top-10 prospect. Injuries have always kept Jenkins sidelined throughout his minor league career, but he has recently returned to Triple-A and is looking quite like his advertised self. Jenkins hit the injured list in early May with a shoulder injury and emerged on a rehab assignment in early June at the lower levels.

Across four rehab games, Jenkins launched two home runs while adding a double. This production carried right into his return to Triple-A on June 23, when he went 1-for-3 with a triple.

Prior to the injury, Jenkins was showcasing his elite eye at the dish but was struggling to tap into his power. Through 25 games with St. Paul, the former fifth overall pick held a .256/.396/.389 line with six doubles and only two round-trippers. However, he struck out just 18 times and drew 19 walks. If Jenkins can extend this recent power surge into Triple-A, he could find himself on the verge of a call-up.

Throughout his MiLB career, Jenkins has shown a top-tier approach at the dish with solid power. In 2025, Jenkins appeared in just 84 games (mostly at Double-A) and carried an overall .286/.399/.451 line with 10 home runs, 17 stolen bases, and a 20.5% K%. If the 21-year-old center fielder can begin to showcase his 55 future grade rate more consistently, he could make a strong case to hold the crown as the top outfield prospect in baseball.

Mike Sirota, OF, Los Angeles Dodgers

Rounding out this month's edition will be a member of the loaded Dodger outfield pipeline. While Josue De Paula and Zyhir Hope receive most of the attention, Mike Sirota deserves not only to be in the same conversation but also to be ranked higher than them. Sirota moved up to the No. 8 slot in this month's ranking, surpassing Hope, and is now just a few spots behind De Paula.

Sirota was shipped to the Dodgers in the Gavin Lux trade, and it looks like the Dodgers will likely get the better end of this deal by a wide margin. Sirota began the 2026 season at High-A and needs only another 35 games there to prove he is ready to join Double-A. With High-A, the outfielder launched seven home runs with a .325/.476/.602 line.

Since moving up to Double-A Tulsa, Sirota has looked just as dominant. Through his first 30 games in the upper minors, the 87th overall pick has posted a stellar .321/.465/.518 line with 10 doubles, four home runs, two stolen bases, and a 32:29 K:BB.

Throughout the 2026 season, Sirota has raised his walk rate to 20.3% (from 17.8% last season) while his K% has only climbed from 21.9% to 22.6%, despite facing much tougher pitching. The outfielder has also raised his Pull% by four points (38.3%) and maintained a 37.7% ground-ball rate.

His scoring profile on FanGraphs suggests there is even room for further speed, as evidenced by his 60-futures grade in that statistic. We could be looking at a 20+ HR bat with an elite eye and above-average speed by the time he reaches Los Angeles.

Do not wait much longer to acquire Sirota in your dynasty league; his price will only continue to rise as he continues to show this potential in the upper minors. The Dodgers have an illustrious crop of riches in their outfield pipeline, and Sirota could take the crown among them if he maintains this pace.

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