Earlier this week, Baseball America published Top 30 Prospects updates for all 30 MLB organizations. Now, we’re digging deeper into May changes with all-new write-ups on prospect additions, risers, fallers, injuries and graduations for each club.

Read on below for Marlins prospect updates featuring in-depth new intel on top names to know, potential breakouts and lots more. You can find May write-ups for all 30 teams here.

Miami Marlins Top 30 Prospect Additions

22. Josh Ekness, RHP

BA Grade: 40/Average

Track Record: Ekness posted ERAs of 5.93 or higher in each of his three college seasons, including a 6.45 mark in his draft year at University of Houston. Despite the inconsistent results, the quality of his raw stuff convinced the Marlins to take a chance on him. His professional career has featured both dominant outings and occasional meltdowns, but he pitched well enough to earn his major league debut on May 3.

Scouting Report: Ekness sits 96-98 mph with well above-average extension, allowing his fastball to play as an above-average pitch despite ordinary movement traits. His primary weapon is a plus sweeper that pairs effectively with his heater against righthanded hitters. He can manipulate the pitch to create more vertical depth when needed. His fastball-sweeper combination is less effective against lefthanded hitters, and his command remains inconsistent.

The Future: Ekness projects as a useful up-and-down reliever with options remaining. If he sharpens his command, his velocity and swing-and-miss stuff could allow him to pitch in higher-leverage situations.

Scouting Grades: Fastball: 55 | Sweeper: 60 | Control: 40.

Miami Marlins Prospect Graduates

Owen Caissie, OF: Caissie has shown flashes in his Marlins debut, but the early returns have been uneven. He has struggled to make consistent contact and has shown below-average range in the outfield, though he has displayed his speed on the bases. Caissie continues to hit the ball hard, but he has not put enough balls in play to capitalize.

Miami Marlins Prospect Risers

Karson Milbrandt, RHP: Milbrandt is leaning more heavily on his slider, and the pitch has become a true weapon. His 95-97 mph fastball plays effectively off the slider, and the combination has helped him dominate at Double-A Pensacola early in the season.

Starlyn Caba, SS: Caba has reworked his swing and is hitting the ball significantly harder. The changes have led to a slight uptick in strikeouts, but the improved contact quality has resulted in more extra-base hits and more balls finding holes. He remains an exceptional defensive shortstop.

Miami Marlins Prospect Fallers

Cristian Hernandez, SS: Acquired in the Edward Cabrera trade, Hernandez has struggled in his new organization. He has not hit for average, reached base consistently or shown much power. His underlying contact quality is better than his numbers suggest, but an extreme groundball tendency has limited his production.

PJ Morlando, OF: Morlando has struggled to stay healthy in pro ball, and his offensive production has been underwhelming when he has been on the field. Back in the Florida State League for a second season, he is again showing only modest power and limited overall production.

Miami Marlins Prospect Injuries

Thomas White opened the season on the injured list with an oblique injury, but he has returned to action and is back at Triple-A.

Robby Snelling was promoted to the major leagues, but after one start he landed on the injured list with a UCL sprain in his left elbow.

Grant Shepardson impressed in spring training before suffering an elbow injury that required UCL surgery. He is expected to miss the remainder of 2026 and likely much of 2027.

Kevin Defrank is on the 60-day injured list with a biceps injury. There is no clear timetable for his return.