Prospect Baseline Prospect Baseline
Model Last Run Sep 24, 2026 · 8:41 AM ET

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

Player profile

Mac Heuer

NYY · Single-A · P IL(Full Season)

New York Yankees · Age at assessment: 22.2 · Bats: R · Throws: R

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Assessment saved: · Stats updated:

Pitch quality translating

Current bat-missing results are broadly aligned with the verified pitch-quality expectation

Medium Confidence · 69%
PB Rank#2,359
Prospect Score46
Median48
Performance45
Trend0.0%

Why the player is here

  • Best pitch grade 55; dominance evidence sits near the 72th percentile for comparable pitchers
  • K/9 is 11.6

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

Tool vs observed results

Percentile scale
Stuff+13.5 percentile gap
Expected 58 Observed 72
Command+8.2 percentile gap
Expected 42 Observed 50

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

Model history

Median movement
First recorded 40 Latest recorded 48
53 44.5 36 2026-06-04 · Median 40 2026-06-05 · Median 40 2026-06-06 · Median 40 2026-06-07 · Median 40 2026-06-08 · Median 40 2026-06-09 · Median 40 2026-06-10 · Median 40 2026-06-11 · Median 42 2026-06-12 · Median 42 2026-06-13 · Median 42 2026-06-14 · Median 42 2026-06-15 · Median 42 2026-06-16 · Median 42 2026-06-17 · Median 42 2026-06-18 · Median 42 2026-06-19 · Median 42 2026-06-20 · Median 42 2026-06-21 · Median 42 2026-06-22 · Median 42 2026-06-23 · Median 42 2026-06-24 · Median 42 2026-06-25 · Median 42 2026-08-27 · Median 48 2026-08-28 · Median 48 2026-09-01 · Median 48 2026-09-02 · Median 48 2026-09-03 · Median 48 2026-09-05 · Median 48 2026-09-06 · Median 48 2026-09-09 · Median 48 2026-09-14 · Median 48.3 2026-09-15 · Median 48 2026-09-16 · Median 48 2026-09-17 · Median 48 2026-09-18 · Median 48 2026-09-19 · Median 48 2026-09-21 · Median 48 2026-09-22 · Median 48 2026-09-24 · Median 48 2026-06-04 2026-09-24

2026-09-24 · Median 48

Saved median assessments. Gaps indicate unavailable or non-comparable observations.
View recorded values
DateMedian
2026-09-2448
2026-09-2248
2026-09-2148
2026-09-1948
2026-09-1848
2026-09-1748
2026-09-1648
2026-09-1548
2026-09-1448.3
2026-09-0948
2026-09-0648
2026-09-0548
2026-09-0348
2026-09-0248
2026-09-0148
2026-08-2848
2026-08-2748
2026-06-2542
2026-06-2442
2026-06-2342
2026-06-2242
2026-06-2142
2026-06-2042
2026-06-1942
2026-06-1842
2026-06-1742
2026-06-1642
2026-06-1542
2026-06-1442
2026-06-1342
2026-06-1242
2026-06-1142
2026-06-1040
2026-06-0940
2026-06-0840
2026-06-0740
2026-06-0640
2026-06-0540
2026-06-0440

Metrics to follow

K/9 11.6

Primary bat-missing indicator

Definition

Strikeouts recorded per nine innings pitched

K-BB% 14.0%

Separates dominance from walk cost

Definition

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

BB/9 6.0

Shows whether control is limiting the arsenal

Definition

Walks allowed per nine innings pitched. Lower is generally better

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

2026 season

Current season · regular season
G6
IP21.0
ERA3.43
WHIP1.43
K/911.6
BB/96.0
K-BB%14.0%

Tampa Tarpons · Single-A · Updated

Scouting Scenario Range

Model Range0.0%
394857
LowMedianHigh
206099
Performance 45

Profile Context

RiskMedium Risk · 54
MLB / Model Watch
Confidence74
TypePitcher

Backtested Forecasts

Separate from scouting grades
2027 MiLB production47.5
Historical 80% error band23–72
MLB arrival in 3 years1%
Productive MLB role in 3 years0%

The next-season score assumes at least 20 IP. A productive MLB role means a regular playing-time season with above-average measured hitting or pitching production. This is not a WAR forecast.

Scouting Tools

Source: Verified public scouting report
Fastball icon
Fastball55Avg
Slider icon
Slider50Avg
Changeup icon
Changeup50Avg
Command icon
Control45Fringe
Overall icon
Overall40Developmental

Tool Profile

Tool ProfileFastballSliderChangeupCommand20-80 grade scaleArchetype: Pitch Mix

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
2026Tampa TarponsSingle-A103.4365021.01698314271.4311.57

Regular season only. Totals combine team and level stints. Recent windows overlap and use cached game logs. Stats refreshed: 2026-09-22T00:11:19.

More New York Yankees profiles

Organization reflects each player's saved assessment.