Athletics Top 36 Prospects: Leo De Vries Leads the Way
Leo De Vries sits alone at the top of Oakland’s farm system, and the 19-year-old shortstop from the Dominican Republic has earned every bit of that distinction.
De Vries, who signed out of the Dominican Republic in the 2024 international signing period, carries a 60 Future Value grade. That’s rare air. On FanGraphs’ FV scale, a 60 represents a true above-average regular with impact potential, the kind of prospect a rebuilding club builds its timeline around. De Vries is already at Double-A at age 19. Not many teenagers reach that level so fast.
The Athletics’ farm doesn’t stop there, either.
Left-hander Gage Jump checks in at No. 2 with a 50 FV grade. At 23, he’s already at Triple-A and projects as a 2026 big-league contributor. The same ETA applies to Kade Morris, another Triple-A arm who grades at 45 FV. Both pitchers could push for rotation spots as soon as this season, which matters for an Athletics franchise still working through its stadium and roster rebuild after relocating to Sacramento while a permanent home gets sorted out.
Jamie Arnold and Wei-En Lin round out the top five starting pitcher prospects. Arnold, 22, sits at Double-A with a 45 FV and a 2027 ETA. Lin is just 20 years old, also at Double-A, and his 2028 projection reflects how far he still has to travel. Still, a 45 FV at age 20 is a signal worth watching.
The position player depth behind De Vries is thin but not barren.
Junior Perez, a 24-year-old center fielder already at Triple-A, slots in at No. 8 with a 45 FV and a 2026 ETA. He’s probably the closest thing Oakland has to a ready-made everyday outfield option from within the system. Henry Bolte, also a center fielder, grades at 40+ and won’t arrive until 2027 at the earliest. Devin Taylor in left field is the same grade with a 2028 projection.
Johenssy Colome is the wild card. The 17-year-old third baseman out of the rookie level grades at 45 FV, which is aggressive for a player with a 2032 ETA. Six years is a long time. But that grade suggests evaluators see something special, the kind of raw tools that don’t show up often at that age.
The bullpen pipeline is deep if not flashy. Braden Nett grades at 45 FV as a multi-inning reliever with a 2026 ETA, and Mason Barnett already has big-league exposure while carrying a 40 FV. Eduarniel Núñez and Yunior Tur are both active at the MLB level per this list, each graded at 40 FV as single-inning arms.
FanGraphs compiled this ranking using a combination of industry sources and in-person observation, and the full Board resource allows cross-system comparisons for anyone who wants to benchmark Oakland’s system against the rest of the league.
The overall picture is what you’d expect from a club still in construction mode. One elite prospect, a handful of near-ready arms, and a collection of teenagers and low-minors bats that won’t arrive until the end of the decade. Oakland’s player development infrastructure will need to convert that raw talent at a high rate. The Rule 5 draft clock is already ticking on several of the 2026 ETAs, which means roster decisions are coming fast whether the big-league club is ready or not.