Players / Player profile
PIT · A+ · P

Adolfo Oviedo

Age 21 B/T R/R 6′1″, 165 lb Venezuela
Pittsburgh org

Development · trends & plan

Tracked levels only. Monthly values; gaps mark the offseason. The number beside each line is its last month, with that month’s sample (faded under 50 PA or 150 pitches), not the season.

Trends · Bradenton

Fastball velo 88.4 mph Jul ’26 · 98 pitches Apr ’25 – Jul ’26
Stuff 90 Jul ’26 · 98 pitches Apr ’25 – Jul ’26
Whiff rate 16% Jul ’26 · 98 pitches Apr ’25 – Jul ’26
Zone rate 61% Jul ’26 · 98 pitches Apr ’25 – Jul ’26
Walk rate 3.7% Jul ’26 · 27 PA Apr ’25 – Jul ’26

Clear changes

  • ▲ four-seamer velocity 91.0 mph → 93.3 mph +2.3 mph 2025 → 2026 · Bradenton
  • ▲ cutter velocity (primary fastball) 86.5 mph → 87.9 mph +1.4 mph 2025 → 2026 · Bradenton
  • ▼ whiff rate 26% → 19% −10.0 pts 2025 → 2026 · Bradenton · net of the league’s +3.8 pts

Minor leagues

MLB Stats API · public box-score data

SeasonLevelLevelTeamAgeGPA / IPPA / IP ·Line
2026AABradenton Marauders211936.1 IP 36.1 IP · 1.49 ERA · 17.0% K · 5.0% BB
2026A+A+Greensboro Grasshoppers212034 IP 34 IP · 3.97 ERA · 14.0% K · 13.4% BB
2025AABradenton Marauders202853.2 IP 53.2 IP · 5.53 ERA · 18.7% K · 4.3% BB

Prospect Pipeline: Perf+ 91 over his 2026 season (298 BF, mostly A+), 1.4 years younger than his level; trend −13.7 since 2025. Tag: Watch. MiLB Stuff 92 on 471 tracked A pitches. Prospects →

Keystone is an independent portfolio project. It is not affiliated with Major League Baseball or any club. Data: MLB Stats API, Baseball Savant, FanGraphs. Used under their terms for individual, non-commercial use.