Miami Marlins Top 10 Prospects For 2026 Fantasy Baseball

1. LHP Thomas White | 21 | AAA | 2026

At 6’5” 210 lbs., White wields the kind of stuff that would work against anybody: a mid-90’s fastball, a picturesque curve and disappearing changeup. It’s especially perilous for left-handed hitters, and as Blake Snell has proven, if you can eliminate lefties, you’re way ahead before the game begins. He dominated High-A and Double-A, and while he’s lost the strike zone a bit through two Triple-A starts, he still has 17 strikeouts in 9.1 innings against much older players. Miami is back in a familiar spot for the franchise, looking forward to the development of an extremely promising pitching staff while fielding a lineup peppered with question marks. 

2. LHP Robby Snelling | 22 | AAA | 2026

Here’s a blurb from what I wrote on last year’s list: 

“So far in his career, he’s presented a fairly standard look from the left side with spotty command of a three-pitch arsenal (fastball, slider, changeup), but I’d expect that changeup to come along in Miami and his balance (and command) to improve through repetition, instruction and athleticism. Lefties come along a little later, partly because they don’t run into a left-handed pitching coach (or teammate who can help) until later in their lives and don’t face many quality left-handed hitters until they reach college, or in Snelling’s case, the pros.”

In 11 Triple-A starts this season, Snelling recorded a 1.27 ERA and 0.99 WHIP with 81 strikeouts and 17 walks in 63.2 innings. He might’ve been a major leaguer a month ago if Miami had any incentive to promote him. Should open next season in the rotation unless he gets edged out for a month or so by bargain signings. 

3. C Joe Mack | 23 | AAA | 2026

He’s a little bit blocked by the major league team’s second-best bat, which isn’t ideal, but it’s not an emergency. They can split the catching job and play a fair bit of designated hitter or first base. Plus, Mack didn’t exactly force the issue in Triple-A, slashing .250/.320/.459 with 18 home runs and eight stolen bases. That’d be nice for a fantasy catcher, of course, and Mack’s a good defender, so I don’t think the team will drag its feet waiting for him to hit .300 or something. 

4. SS Aiva Arquette | 22 | A+ | 2027

At 6’5” 220 lbs., Arquette might wind up a bit big for shortstop, but he’s got good enough hands to bounce around the diamond. He played mostly second base with Washington before transferring to Oregon State and playing shortstop. High-floor on the dirt helps buy his bat time to come along–not that he’ll definitely need it. He didn’t hit for power during his first month as a professional, but the club jumped him over Low-A, and he still posted a .350 on base percentage in 27 games. I came away more impressed by the homers he didn’t hit, is what I guess I’m saying. 

5. OF Kemp Alderman | 23 | AAA | 2026

Here’s what I wrote a couple weeks ago in Prospect News: Alderman Seeks Office or Sproat Springs Eternal: 

“Alderman has made the most of his first six games in Triple-A, blasting five home runs to bring his season line to 20 homers and 20 steals in 116 games across two levels. He’s also striking out a perfectly manageable 22.3 percent of the time. Intriguing redraft sleeper for deep leagues in 2026.”

The Marlins are full of such “sleepers,” so that might complicate the playing-time picture. Alderman cooled off after that early burst but is still slashing .288/.327/.538 with two home runs and two steals in 13 games since the day that article was posted (September 7). Easy plus power gives him a long runway to figure out how to get by against the best. 

6. RHP Noble Meyer | 20 | A+ | 2026

I suspect we’re headed toward a breakout season for the 10th overall pick in the 2023 draft. A 6’5” 185 lbs righty with three plus pitches, he’s been whittling away at his walk rate while maintaining the strikeouts and home run suppression, building confidence in his command of the whole arsenal. He missed a few weeks in the middle of the season because of injury/illness/undisclosed, so he didn’t build up many innings, throwing 65.1 in High-A this year after 74 across two levels last year. He could open the year in Double-A and make himself a major league option around the All-Star break. 

7. OF Dillon Head | 21 | A+ | 2029

A dynamic outfielder with double-plus speed and power projection in his six-foot 185-pound frame, Head hasn’t hit much as a professional but continues to flash excellent centerfield defense and elite speed while holding his own against older players despite losing time to injury. 

8. SS Andrew Salas | 18 | A | 2029

The club spent $3.7 million to sign Salas in January and then sent him straight to Low-A for a full season, where he slashed .186/.319/.245 with three home runs and 39 stolen bases in 104 games. These outcomes combined with the team’s struggles to develop hitters should keep Salas pretty much free in fantasy leagues, and maybe he should be. Neither of his brothers, Jose and Ethan, have hit yet as professionals, and neither has Andrew, but he is a 6’2” 180 lb teenager with solid plate skills and power from the left side. Worth watching to say the least. 

9. OF Andres Valor | 20 | A | 2029

Valor features easy power and speed from a 6’3” 180 lb frame and made a fairly successful jump to full-season ball this year (105 wRC+) despite a 29 percent strikeout rate. In 108 games, he hit nine home runs, stole 45 bases and drew 51 walks but slashed .231/.335/.375. All in all, an intriguing outcome for a 19-year-old against older players. 

10. OF PJ Morlando | 20 | A | 2029

The 16th overall pick in 2024, Morlando hasn’t played much as a pro (58 games) but retains the upside of a 6’3” 198 lb power-hitting corner outfielder who could maybe fake center in a pinch. A left-handed hitter with a big swing, he slashed .226/.361/.353 with five home runs and six stolen bases in 52 Low-A games this season, good for a 112 wRC+ and probably a promotion to High-A to open the 2026 campaign. 

Thanks for reading!