Players / Player profile
PIT · AAA · P

Michael Walsh

Age 25 B/T R/R 6′2″, 195 lb USA
Pittsburgh org

This winter

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

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

Rule 5 pick risk 0.21 (the plan’s ordering, not a probability); expected loss if exposed 0.01 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

Fastball velo 87.6 mph Jun ’26 · 50 pitches Jun ’26 – Jun ’26
Stuff 87 Jun ’26 · 50 pitches Jun ’26 – Jun ’26
Whiff rate 17% Jun ’26 · 50 pitches Jun ’26 – Jun ’26
Zone rate 44% Jun ’26 · 50 pitches Jun ’26 – Jun ’26
Walk rate 7.7% Jun ’26 · 13 PA Jun ’26 – Jun ’26

Minor leagues

MLB Stats API · public box-score data

SeasonLevelLevelTeamAgeGPA / IPPA / IP ·Line
2026AABradenton Marauders2535 IP 5 IP · 0.00 ERA · 43.8% K · 6.3% BB
2026AAAAAltoona Curve252638 IP 38 IP · 5.45 ERA · 23.5% K · 6.5% BB
2026AAAAAAIndianapolis Indians2522 IP 2 IP · 4.50 ERA · 15.4% K · 7.7% BB
2026ROKROKFCL Pirates2522 IP 2 IP · 0.00 ERA · 25.0% K · 12.5% BB
2025A+A+Greensboro Grasshoppers243849 IP 49 IP · 2.76 ERA · 25.8% K · 5.6% BB
2025AAAAAltoona Curve241118.2 IP 18.2 IP · 3.38 ERA · 20.5% K · 5.1% BB

Prospect Pipeline: Perf+ 106 over his 2026 season (207 BF, mostly AA), 0.5 years older than his level; trend −1.2 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.