6 Fantasy Baseball Prospect Risers - Dynasty Gems In Triple-A

May 28, 2026

Andy's fantasy baseball prospect sleepers, risers, stashes currently in Triple-A. His fantasy baseball dynasty gems and breakouts to target in dynasty leagues.

The MLB and MiLB seasons are now past the quarter mark, which means we have plenty of data to analyze potential breakout candidates. Last week, we looked at seven risers at the Double-A level, and it is now time to move up one step and look at Triple-A.

However, given that Triple-A is the home to some of the game's top prospects, we will opt to "skip" them in this article and instead dig a bit deeper. Luis Lara, Kaelen Culpepper, and Edwin Arroyo would likely sit at the top of this list, but given that they have stolen most of the headlines, they will be pushed to the "honorable mentions" section of this piece.

Which prospects should fantasy managers know heading into June? Be sure to follow RotoBaller MLB on X for all of our league-winning content and me, @A_Smith_FS, for any questions! Additionally, be sure to use code SMITH at checkout for 30% off on all premium packages. Let's dive in!

Jacob Gonzalez, INF, Chicago White Sox

The White Sox have seen many of their prospects not only increase their dynasty value but also get called up to the majors. The leader of this group was left-hander Noah Schultz, but also utility man Sam Antonacci, who has been quite productive in his first stint in the majors. However, while Braden Montgomery has taken most of the minor league headlines, infielder Jacob Gonzalez has been just as productive.

Gonzalez joined the White Sox as the 15th overall pick in the 2023 MLB Draft out of Ole Miss, but was never found high on most prospect boards. Currently, on MLB.com's team rankings, Gonzalez ranks as the No. 24 prospect in the system, which does not suggest his overall fantasy ceiling is particularly high.

However, the 23-year-old has made major strides at Triple-A this season and could be approaching his MLB debut much sooner than the team anticipated. In 2025, Gonzalez opened his season with High-A and spent most of his time there before earning a call-up to Double-A in the second half. Over both levels (134 games), Gonzalez held a .232/.307/.369 line.

However, at Double-A, his power production took a bit of a decline as his .603 OPS was nearly 70 points lower than what it was at Double-A. Despite the struggles he endured, the infielder was assigned to the top club in the system to open the 2026 campaign and has silenced most doubters.

Throughout his first 48 games against the top pitching in the minor leagues, Gonzalez has posted an impressive .299/.409/.603 line with nine doubles, one triple, 15 home runs, and 15 stolen bases. His 15 home runs have already set a new season-best for the 23-year-old.

When looking under the hood, Gonzalez has drastically lowered his infield fly-ball rate from 31.9% (in 2025) to 17.9%. Additionally, his HR/FB has also taken a massive jump from a low 4.9% to 26.8%. While managers should not expect him to maintain this pace given his previous career marks, it is worth noting that he has been able to optimize his wing against much tougher pitching.

Gonzalez has also raised his BB% to 14.4%, which would match the marks he posted in the lower levels of the system during the 2023 season, and only seen his K% climb four points (16.3% - 20.3%) despite facing Triple-A pitching.

While managers should not expect this power surge to continue, Gonzalez has shown much greater upside than previously anticipated. He should be in the mix to debut before the end of the first half and has officially put himself on the "redraft" stash radar.

JACOB GONZALEZ GRAND SLAM!!

It's a brand new ballgame! pic.twitter.com/E4sao21CbS

— Charlotte Knights (@KnightsBaseball) May 17, 2026

Jimmy Crooks, C, St. Louis Cardinals

Jimmy Crooks made his MLB debut late in the 2025 season but did not make much of an impact. Over a brief 15-game stint with the Cardinals, Crooks posted a .133/.152/.244 line with a .396 OPS and one long ball. Given that Pedro Pages and Ivan Herrera were both healthy in camp, Crooks was optioned to the top club to put the final touches on his development.

The No. 7-ranked prospect in the system (per MLB.com) has enjoyed a power surge with the Memphis Redbirds, launching 13 home runs over his first 37 games of the campaign. During this stint, Crooks has carried a .263/.410/.575 line with a strong .989 OPS. During the 2025 season, he spent his first 98 games in Triple-A before his promotion to the bigs, but did not enjoy as much success, going deep just 14 times in nearly triple the games played and posting a low .778 OPS.

Seeing Crooks quickly tap into much higher raw power in just one calendar year is an excellent sign for his long-term outlook.

However, while his power surge is worth noting, Crooks is also showing a stronger eye at the plate and increased fundamentals. In 2026, Crooks has doubled his walk rate at Triple-A (8.4% to 16.9%) but has seen his K% slightly increase from 26.5% to 29.5%. The backstop will need to drop this mark before earning another call-up to the majors.

More importantly, Crooks has made far more effective contact with the ball, lowering his ground-ball rate from 45.3% to 39.0% and raising his fly-ball rate by five points (29.4% - 34.1%).

Even though there is no clear spot on the MLB roster for him, he is making the necessary adjustments to find more success in his next stint. His K% will need to be lowered, but Crooks should re-enter the majors with a high-upside power bat in the second half.

Ralphy Velazquez, 1B, Cleveland Guardians

While we are avoiding the "top" prospects in this piece, Velazquez sits just outside this group as he is currently the No. 59 overall prospect on MLB.com, the highest among the names on this list. Despite his higher-prospect pedigree, Velazquez's start to the season has remained relatively under the radar.

This is likely because the first baseman opened the season with Double-A Akron and only recently earned a call to Triple-A. In Double-A, Velazquez is looking more than formidable, which prompted the early promotion. Through 36 games, the first baseman has posted a .317/.414/.566 slash line with nine doubles, seven home runs, and a 31:22 K:BB.

He looked just as sharp as he did during his first Double-A stint in 2025, where he carried a .330/.405/.589 slash line.

As a result, the Guardians opted to move their young infielder to the top club of the minor league, putting him just one step away from the majors. Through his first five games at the top level, Velazquez has continued to roll, going 6-for-17 with three doubles and a 2:3 K:BB. While he has yet to go deep, he continues to show high-end contact while maintaining a low strikeout rate.

Per the FanGraphs scouting report, the first baseman possesses 60 future-grade power, suggesting he could flirt with a 25+ HR season once he reaches the major leagues.

Velazquez is not slowing down and may not only debut this season, but could make an immediate impact for the Guardians. Redraft managers should have him firmly on their stash radar, and dynasty managers should look to "buy" the 20-year-old before his price continues to rise.

Ralphy Velazquez's sixth extra-base hit in the past five games is a MOONSHOT 🚀

The @CleGuardians' No. 3 prospect is slashing .309/.414/.520 after hitting his fifth homer of the year for the Double-A @AkronRubberDuck. pic.twitter.com/P7EUlxpzzV

— MLB Pipeline (@MLBPipeline) May 13, 2026

Jase Bowen, OF, San Diego Padres

The final hitter will spotlight is a bit of a deeper name. Jase Bowen was selected in the 2019 MLB Draft by the Pittsburgh Pirates but is now in the Padres organization.

Per MLB.com, the 25-year-old outfielder sits as the No. 23 prospect in the system. While his age and longer journey through the minor leagues may not be overly appealing to dynasty managers, he has enjoyed a power surge at Triple-A and is now firmly on the doorstep of San Diego.

Through 43 games this season with El Paso, Bowen has held a .288/.361/.600 line with nine doubles and an eye-catching 12 round-trippers. He has also chipped in six stolen bases while owning a 53:19 K:BB.

Throughout his MiLB career, Bowen has shown five-category potential, which has made him an intriguing name to mentor in deep dynasty formats. In 2025 (through 94 games), while split between the Pirates system, Bowen went deep nine times, swiped 20 bags, and carried a .272/.353/.449 line.

A closer look at his profile shows many promising signs of progress. This season, the outfielder has generated a much lower 30.5% ground-ball rate, a nine-point drop from his 2025 mark, and has even raised his fly-ball rate to 37.4%, which is on pace to be his highest since the 2024 campaign. This current pace should set him up for an MLB debut in the coming months.

This is a prospect who has 55 future-grade raw power and 60 future-grade speed, per FanGraphs. He has the skill set to make an impact for fantasy.

Jack Wenninger, SP, New York Mets

While the Mets have had several young pitchers in their system take much of the spotlight, including Nolan McLean and Jonah Tong, Jack Wenninger has still gone under the radar. Wenninger has seen his name rise in deep redraft leagues (and was recently noted in the latest edition of my pitching prospects to stash), but his dynasty value is also gradually increasing.

The Illinois product is currently the No. 5-ranked prospect in the team's system on MLB.com and has made steady progress through the pipeline after being drafted in the sixth round of the 2023 MLB Draft.

During the 2025 season, the right-hander spent the entire campaign with Double-A and held his own, posting a strong 2.92 ERA with a 1.15 WHIP. During this 135 2/3-inning stint, Wenninger totaled 147 punchouts while walking 42 hitters. Given his success, the Mets opted to send him to Triple-A to open the 2026 season, putting him in play for a second-half debut.

However, given the Mets' lack of pitching depth and their active promotion of young players to the roster, looking for any type of spark (A.J. Ewing, Nick Morabito), Wenninger's name could be called very soon.

The 24-year-old has made a very strong case with Syracuse, posting a dominant 2.20 ERA with a 1.22 WHIP over 41 frames. He has continued to average more than a strikeout per inning, totaling 44, while walking a rather high 27 hitters. Despite facing tougher hitting, Wenninger's K% of 25.3% is only a mere 1.4% drop from his 2025 rate.

However, his walk rate has nearly doubled, jumping to a high of 13.8%, which has been a blemish on his rather impressive ratios. Despite this, Wenninger is generating far better batted-ball marks, posting a 48.5% ground-ball rate and a 27.3% fly-ball rate, both of which are improvements over his marks at the Double-A level.

Given that Wenninger has always been a plus pitcher in terms of command (60 current and future grades in command, per FanGraphs), managers should not be overly concerned with his current BB%. Once he settles that rate down, he could be on the fast track to Queens, given that the remainder of his profile looks very promising. He is emerging as a sneaky buy for dynasty managers, as his price will only increase as his MLB debut looms.

Jack Wenninger fires a 1-2-3 inning 🔥

(via @Cardinals) pic.twitter.com/fcdKMauwm3

— SNY Mets (@SNY_Mets) March 7, 2026

Mitch Bratt, SP, Arizona Diamondbacks

Let's round this out with a deeper pitcher at Triple-A, Mitch Bratt of the Diamondbacks. Bratt currently sits as the No. 14-ranked prospect in the Diamondbacks system on MLB.com but is quickly emerging as a name to watch for a second-half debut.

Bratt spent the 2024 season at the Double-A level with both the Rangers and Diamondbacks and logged 122 1/3 innings (primarily as a starter) and held a 3.38 ERA with a 1.17 WHIP. The southpaw racked up an impressive 148 punchouts while showing elite command, walking only 21 hitters over the course of the entire campaign.

As a result, the Diamondbacks opted to send him to Triple-A to make his debut with the top club to open 2026. Throughout his first nine starts at Reno, Bratt has continued to show steady progression, posting a 2.35 ERA with a dominant 0.91 WHIP. He has struck out 37 hitters while walking just 10 over his first 38 1/3 innings.

Despite moving up another level, Bratt has maintained a sub-7.0% BB% while posting a 25.2% K%, which is only a four-point drop from his 2025 mark at Double-A. Additionally, the left-hander has generated a high 41.7% ground-ball rate (and an increase from the 36.9% the previous season) and has even lowered his fly-ball rate by several points (31.3%).

While his pitch mix is not projected to be overly dominant (according to the FanGraphs scouting report), one of his impressive traits is his command. He holds a 70 futures grade in that skill, putting him in the elite range of prospect pitchers. If he can continue to show steady strikeout totals, Bratt could find quick success in the big leagues.

The Georgia Premier Academy product is emerging as a prime buy target for those in deeper leagues, as he is not only showcasing strong fundamentals but appears to be in a prime position to debut in the second half.

Other Prospect Risers in Triple-A

• JR Ritchie, ATL
• Carson Whisenhunt, SF
• Kaelen Culpepper, MIN
• Edwin Arroyo, CIN
• Luis Lara, MIL
• Kevin Alcantara, CHC (recently promoted to majors)

More Fantasy Baseball Prospects and Rookies