Scouting Report

Scouting grades: Fastball: 50 | Slider: 45 | Changeup: 60 | Control: 50 | Overall: 45

Already 19 years old when the 2025 international signing period opened, Marquez signed that January for just $10,000 out of Mexico. The early returns point to him being a steal. The Phillies skipped him over the Dominican Summer League and sent him to the Florida Complex League for his debut. He threw so well over 10 outings there that he got moved up to full-season Clearwater and continued to miss bats there.

Pitching all of this season at age 20, Marquez reminds some in the organization of a third- or fourth-rounder talent-wise. He can throw strikes with three pitches, the best being his 80 mph changeup that features a ton of sink and tailing action away from left-handed hitters, getting an absurd amount of swing-and-miss and chase while also eliciting weak contact on the ground. His fastball, which sits 92-94 mph and tops out at 96, is also a worm-killer, thrown with good sink. His feel for spin isn’t as strong, but there’s faith it will keep improving, with his slider being a bit better when he throws it harder with cutter-like action to it.

The 6-foot-2 Marquez does have some projection remaining, and there could be more velocity to come as he fills out his frame. Marquez is athletic on the mound, and despite some excessive head movement, repeats his delivery well and fills up the zone. If he can find a breaking ball to trust and show he can handle the workload, he has the chance to be a back-end starter in the future. 

Scouting grades: Fastball: 50 | Slider: 45 | Changeup: 55 | Control: 45 | Overall: 40

While the Phillies handed out eight six-figure bonuses during the 2025 international signing period, they also did some bargain shopping. The best find might be Marquez, who was “old” for the class, signing at age 19 for just $10,000 out of Mexico. The Phillies liked his combination of athleticism, stuff and feel for pitching enough to send him stateside for his pro debut, and after missing a good amount of bats over 10 Florida Complex League appearances, he got moved up to full-season Clearwater when the FCL season concluded.

At 6-foot-2 and about 180 pounds, Marquez has an athletic frame with projection left on it to add more strength. He was already adding a few ticks of velocity to his fastball, touching 96 mph during his debut summer after being more 92-94 with the heater when he first signed. He throws it with good sink to get ground-ball outs. He does the same thing with his changeup, a pitch that could be a plus offering in the future. The cambio is ahead of his breaking ball, a slider that has some depth. It’s more of a get-me-over, steal-a-strike pitch right now, but there’s enough feel to spin to think it might be a solid breaker in time.

Marquez doesn’t have much track record yet, but his smooth and repeatable delivery point to an ability to be a solid strike-thrower as he develops and moves up the organizational ladder. If the breaking ball comes and he can command all three offerings, he has the chance to be a starter, with more in the tank to come.

Awards

FSL Pitcher of the Week

Week	Team
08/24/2025

Transactions

Team	Date	Transaction
	03/05/2026	RHP Ramon Marquez assigned to Philadelphia Phillies Prospects.
	08/26/2025	RHP Ramon Marquez assigned to FCL Phillies from Clearwater Threshers.
	07/29/2025	RHP Ramon Marquez assigned to Clearwater Threshers from FCL Phillies.
	05/15/2025	RHP Ramon Marquez assigned to FCL Phillies from DSL Phillies Red.
	02/13/2025	RHP Ramon Marquez assigned to DSL Phillies Red.
	01/15/2025	Philadelphia Phillies signed free agent RHP Ramon Marquez to a minor league contract.