Prospect Baseline Prospect Baseline
Model Last Run Sep 25, 2026 · 2:59 PM ET

Included in the latest imported public model. All figures reflect the saved assessment dates.

Player profile

Grant Shepardson

MIA · Single-A · P IL(60-Day)

Miami Marlins · Age at assessment: 21 · Bats: R · Throws: R

Results Ahead of Tools
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Assessment saved:

Command results ahead of the tool grade

Current strike throwing is outperforming the verified command expectation

High Confidence · 90%
PB Rank#2,564
Prospect Score44
Median46
Performance48
Trend0.0%

Why the player is here

  • Command 40; command evidence sits near the 54th percentile for comparable pitchers
  • BB/9 is 5.4

Context for this assessment, not a verified explanation for movement between model runs.

Tool vs observed results

Percentile scale
Stuff-12.7 percentile gap
Expected 58 Observed 46
Command+21.2 percentile gap
Expected 33 Observed 55

Verified tool expectations alongside results for comparable players. Percentiles are not scouting grades.

Model history

Median movement
First recorded 40 Latest recorded 46
50 43 36 2026-08-27 · Median 40 2026-08-28 · Median 40 2026-09-01 · Median 40 2026-09-02 · Median 40 2026-09-03 · Median 40 2026-09-05 · Median 40 2026-09-06 · Median 40 2026-09-09 · Median 40 2026-09-14 · Median 45.9 2026-09-15 · Median 46 2026-09-16 · Median 46 2026-09-17 · Median 46 2026-09-18 · Median 46 2026-09-19 · Median 46 2026-09-21 · Median 46 2026-09-22 · Median 46 2026-09-24 · Median 46 2026-09-25 · Median 46 2026-08-27 2026-09-25

2026-09-25 · Median 46

Saved median assessments. Gaps indicate unavailable or non-comparable observations.
View recorded values
DateMedian
2026-09-2546
2026-09-2446
2026-09-2246
2026-09-2146
2026-09-1946
2026-09-1846
2026-09-1746
2026-09-1646
2026-09-1546
2026-09-1445.9
2026-09-0940
2026-09-0640
2026-09-0540
2026-09-0340
2026-09-0240
2026-09-0140
2026-08-2840
2026-08-2740

Metrics to follow

BB/9 5.4

Primary strike-throwing checkpoint

Definition

Walks allowed per nine innings pitched. Lower is generally better

WHIP 1.40

Tracks total traffic allowed

Definition

Walks and hits allowed per inning pitched. Lower is generally better

K-BB% 10.5%

Balances dominance against walks

Definition

Strikeout percentage minus walk percentage, a compact measure of pitcher dominance and control

Next checkpointRecheck BB/9, WHIP, and K-BB% after the next 20 innings

2025 season

Latest recorded regular season
G17
IP55.1
ERA4.23
WHIP1.43
K/99.6
BB/95.4
K-BB%10.5%

2 teams · Total · All levels · Update date unavailable

Scouting Scenario Range

Model Range0.0%
344658
LowMedianHigh
206099
Performance 48

Profile Context

RiskWide Range · 70
MLB / Model Watch
Confidence74
TypePitcher

Scouting Tools

Source: Verified public scouting report
Fastball icon
Fastball55Avg
Slider icon
Slider55Avg
Cutter icon
Cutter50Avg
Changeup icon
Changeup45Fringe
Command icon
Control40Developmental
Overall icon
Overall40Developmental

Tool Profile

Tool ProfileFastballSliderCutterChangeupCommand20-80 grade scaleArchetype: Pitch Mix

Statistics availability

The available statistics do not have a recorded update date. Missing values are not treated as zero. The model assessment reflects the evidence available to that run.

Player Stats

Recent regular season
PeriodTeamLevelWLERAGGSSVIPHRERHRBBSOWHIPK/9
Last 7 daysNo recent game logs available
Last 30 daysNo recent game logs available
Year-by-year regular season
YearTeamLevelWLERAGGSSVIPHRERHRBBSOWHIPK/9
2025Jupiter HammerheadsSingle-A225.9360013.210139015121.837.90
2025FCL MarlinsFCL233.671110041.2362017318471.3010.15
20252 teams · TotalAll levels454.231710055.1463326333591.439.60

Regular season only. Totals combine team and level stints. Recent windows overlap and use cached game logs.

More Miami Marlins profiles

Organization reflects each player's saved assessment.