Players / Player profile
PIT · AAA · SS

Jesus Castillo

Age 23 B/T R/R 5′10″, 144 lb Venezuela
Pittsburgh org

This winter

What the Winter Plan does with Castillo: its decisions feed, the dated moves and the briefs

Rule 5 eligible; the plan leaves him unprotected on Nov 17.

Rule 5 pick risk 0.17 (the plan’s ordering, not a probability); expected loss if exposed 0.03 WAR.

  • Rule 5 protectiondue Nov 17 · medium confidence

    Protect Termarr Johnson (2B, AAA, FV 45), Derek Diamond (SIRP, AAA, FV 40) and Keiner Delgado (SS, AA, FV 40) by Nov 17. Expose the rest; the most likely to be taken is Cy Nielson (AAA, risk 0.23; expected loss 0.03 long-term WAR, below the 0.06 that cutting Noah Murdock for a fourth spot would cost; the plan's rule protects at most three).

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 · Triple-A

Chase rate 32% Sep ’26 · 17 PA Jun ’26 – Sep ’26
Zone contact 90% Sep ’26 · 17 PA Jun ’26 – Sep ’26
Exit velocity (avg) 85.8 mph Sep ’26 · 17 PA Jun ’26 – Sep ’26
xwOBA .300 Sep ’26 · 17 PA Jun ’26 – Sep ’26
Strikeout rate 24% Sep ’26 · 17 PA Jun ’26 – Sep ’26

Minor leagues

MLB Stats API · public box-score data

SeasonLevelLevelTeamAgeGPA / IPPA / IP ·Line
2026AABradenton Marauders2226 PA 6 PA · .400/.500/.400 · 0 HR · 33.3% K · 0.0% BB
2026A+A+Greensboro Grasshoppers22314 PA 14 PA · .385/.429/.462 · 0 HR · 14.3% K · 7.1% BB
2026AAAAAltoona Curve2267265 PA 265 PA · .248/.313/.349 · 5 HR · 22.6% K · 7.5% BB
2026AAAAAAIndianapolis Indians222594 PA 94 PA · .277/.362/.289 · 0 HR · 19.1% K · 10.6% BB
2026ROKROKFCL Pirates22311 PA 11 PA · .333/.364/.556 · 0 HR · 0.0% K · 9.1% BB
2025A+A+Greensboro Grasshoppers21106397 PA 397 PA · .241/.326/.287 · 2 HR · 22.4% K · 9.1% BB
2025AAAAAAIndianapolis Indians21414 PA 14 PA · .154/.214/.154 · 0 HR · 7.1% K · 7.1% BB

Prospect Pipeline: Perf+ 94 over his 2026 season (390 PA, mostly AA), 1.6 years younger than his level; trend +0.4 since 2025 (inside the year-to-year noise). Tag: On track. 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.