What Robby Snelling brings to Marlins rotation and how he received call-up news

[Kevin Barral]

MIAMI, FL — Fish On First No. 2 prospect Robby Snelling will start on Friday night against the Washington Nationals. His selection to the Miami Marlins roster is not official yet, but he's already with the big league club, "trying to soak it in."

"Take it all in and not let the moment get too big," Snelling said on Thursday. "Just enjoying today and then try not to change anything and go into tomorrow and replicate to as nearly and closely as I can what I was doing in Jacksonville."

Snelling, 22, made six starts in Triple-A Jacksonville, posting a 1.86 ERA, 2.91 FIP, 13.66 K/9 and 4.66 BB/9, before being called up.

It took a while for Snelling to be informed that he was going to be called up. The Marlins designated Chris Paddack for assignment on Tuesday morning, but even following Wednesday's Jacksonville win, manager David Carpenter did not announce who would be filling that open rotation spot. Later that afternoon, Snelling was called into Carpenter's office.

"They sat me down and said, 'We know you've been stressed the last couple of days, but it's pretty awesome that you haven't let it affect your routine. It's very professional of you,'" Snelling said. "I was like, 'It's really hard to keep my sanity knowing that potentially I was an option for me to come up here, but I did the best that I could to keep doing the same thing I've been doing day in and day out.' He goes, 'hopefully this eases you a little bit, but they have their guy for Friday. They know who they want. So knowing that we just wanted to put your mind at ease.' He didn't tell me and I was like, alright, I'm still throwing on Friday. He's like, 'You're so good to go on Friday, right?' He goes, 'Well, you're gonna be throwing in Miami.'"

In four spring training appearances (two starts), Snelling had a 7.56 ERA, but 3.53 FIP. The big issue he identified was his 4.32 BB/9, something he said he needed to cut down on with the help of throwing more first-pitch strikes. Through his six regular season starts, Snelling has only walked three or more hitters twice; outside of that, it has been two walk or less.

Snelling has a new sweeper in addition to a gyro slider that entered his arsenal in 2025. He's been focused on throwing the gyro at the bottom of the zone. His original breaking ball, the curveball, continues to be one of his best pitches. In that start against Durham, he generated six whiffs and four of his five strikeouts came on that pitch. Overall, the curveball is his second-most-used pitch and has a 32.4% whiff rate.

The final start Snelling made for the Jumbo Shrimp came against the Durham Bulls, where he tossed five hitless innings, striking out nine and walking one. His fastball topped out at 96.1 mph and averaged 94.7 mph. Five of his nine strikeouts came on the fastball.

Aside from his left-handedness, Snelling differs from the other Marlins starters in that he's very difficult to steal bases against. Since the beginning of last season, opponents have succeeded only eight times on 24 attempts. Partly due to that, he's the reigning Minor League Gold Glove Award winner.

The Nationals enter the weekend series with an 18-20 record under first-year manager Blake Butera. Snelling has seen most of the players in the Nationals lineup before, whether that be in minor league or Grapefruit League competition. With left-handed pitcher Foster Griffin on the mound for Washington, all signs point to Liam Hicks catching Snelling on Friday. First pitch is set for 7:10 pm.

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