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

Jackson Baumeister

TB · AA · P

Tampa Bay Rays · Age at assessment: 24.2 · Bats: R · Throws: R

Tools Ahead of Results
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Assessment saved: · Stats updated:

Stuff not yet translating

The verified pitch-quality expectation is running ahead of current bat-missing results

High Confidence · 99%
PB Rank#982
Prospect Score57
Median56
Performance45
Trend+0.4%

Why the player is here

  • Best pitch grade 60; dominance evidence sits near the 44th percentile for comparable pitchers
  • K/9 is 9.7

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

Tool vs observed results

Percentile scale
Stuff-22.5 percentile gap
Expected 67 Observed 44
Command+12.1 percentile gap
Expected 42 Observed 54

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

Model history

Median movement
First recorded 48 Latest recorded 56
60 52 44 2026-06-04 · Median 48 2026-06-05 · Median 48 2026-06-06 · Median 48 2026-06-07 · Median 49 2026-06-08 · Median 49 2026-06-09 · Median 49 2026-06-10 · Median 49 2026-06-11 · Median 49 2026-06-12 · Median 49 2026-06-13 · Median 52 2026-06-14 · Median 52 2026-06-15 · Median 52 2026-06-16 · Median 52 2026-06-17 · Median 53 2026-06-18 · Median 53 2026-06-19 · Median 53 2026-06-20 · Median 53 2026-06-21 · Median 53 2026-06-22 · Median 53 2026-06-23 · Median 53 2026-06-24 · Median 53 2026-06-25 · Median 49 2026-06-26 · Median 49 2026-06-28 · Median 49 2026-06-29 · Median 49 2026-06-30 · Median 49 2026-07-01 · Median 48 2026-07-03 · Median 50 2026-07-05 · Median 50 2026-07-07 · Median 54 2026-07-09 · Median 54 2026-07-11 · Median 54 2026-07-12 · Median 56 2026-07-14 · Median 56 2026-07-16 · Median 56 2026-07-21 · Median 56 2026-07-22 · Median 55 2026-07-23 · Median 55 2026-07-24 · Median 55 2026-07-25 · Median 55 2026-07-26 · Median 55 2026-07-27 · Median 55 2026-07-28 · Median 55 2026-07-29 · Median 55 2026-07-30 · Median 55 2026-07-31 · Median 55 2026-08-01 · Median 52 2026-08-03 · Median 52 2026-08-05 · Median 52 2026-08-07 · Median 52 2026-08-08 · Median 50 2026-08-09 · Median 50 2026-08-10 · Median 50 2026-08-11 · Median 50 2026-08-13 · Median 50 2026-08-14 · Median 48 2026-08-16 · Median 48 2026-08-17 · Median 48 2026-08-18 · Median 48 2026-08-19 · Median 49 2026-08-20 · Median 49 2026-08-22 · Median 49 2026-08-23 · Median 49.1 2026-08-25 · Median 49.1 2026-08-27 · Median 56 2026-08-28 · Median 56 2026-09-01 · Median 56 2026-09-02 · Median 56 2026-09-03 · Median 55 2026-09-05 · Median 55 2026-09-06 · Median 55 2026-09-09 · Median 55 2026-09-14 · Median 55.8 2026-09-15 · Median 56 2026-09-16 · Median 56 2026-09-17 · Median 56 2026-09-18 · Median 56 2026-09-19 · Median 56 2026-09-21 · Median 56 2026-09-22 · Median 56 2026-09-24 · Median 56 2026-06-04 2026-09-24

2026-09-24 · Median 56

Saved median assessments. Gaps indicate unavailable or non-comparable observations.
View recorded values
DateMedian
2026-09-2456
2026-09-2256
2026-09-2156
2026-09-1956
2026-09-1856
2026-09-1756
2026-09-1656
2026-09-1556
2026-09-1455.8
2026-09-0955
2026-09-0655
2026-09-0555
2026-09-0355
2026-09-0256
2026-09-0156
2026-08-2856
2026-08-2756
2026-08-2549.1
2026-08-2349.1
2026-08-2249
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2026-08-1949
2026-08-1848
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2026-07-0954
2026-07-0754
2026-07-0550
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2026-06-2949
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2026-06-2649
2026-06-2549
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2026-06-2153
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2026-06-1953
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2026-06-0648
2026-06-0548
2026-06-0448

Metrics to follow

K/9 9.7

Primary bat-missing indicator

Definition

Strikeouts recorded per nine innings pitched

K-BB% 13.0%

Separates dominance from walk cost

Definition

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

BB/9 4.8

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
G24
IP103.1
ERA5.14
WHIP1.34
K/99.7
BB/94.8
K-BB%13.0%

Montgomery Biscuits · AA · Updated

Scouting Scenario Range

Model Range+0.4%
515661
LowMedianHigh
206099
Performance 45

Profile Context

RiskLow Risk · 24
MLB / Model Watch
Confidence91
TypePitcher

Backtested Forecasts

Separate from scouting grades
2027 MiLB production42.2
Historical 80% error band20–65
MLB arrival in 3 years24%
Productive MLB role in 3 years3%

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
Fastball60Above Avg
Curveball icon
Curveball50Avg
Cutter icon
Cutter50Avg
Changeup icon
Changeup45Fringe
Command icon
Control45Fringe
Overall icon
Overall40Developmental

Tool Profile

Tool ProfileFastballCurveballCutterChangeupCommand20-80 grade scaleArchetype: Pitch Mix

Player Stats

Recent regular season
PeriodTeamLevelWLERAGGSSVIPHRERHRBBSOWHIPK/9
Last 7 daysNo recent game logs available
Last 30 daysAll teamsAll levels012.893309.173307131.5012.54
Year-by-year regular season
YearTeamLevelWLERAGGSSVIPHRERHRBBSOWHIPK/9
2026Montgomery BiscuitsAA465.1424240103.183615918551111.349.67
2025Montgomery BiscuitsAA244.621515062.1533732625511.257.36
2024Aberdeen IronBirdsHigh-A133.061818070.2533124343911.3611.59
2024Bowling Green Hot RodsHigh-A201.2475129.0125415440.5913.66
20242 teams · TotalAll levels332.532523199.26536284481351.1312.19

Regular season only. Totals combine team and level stints. Recent windows overlap and use cached game logs. Stats refreshed: 2026-09-24T08:35:32.

Checklist appearances

  • 2023 Bowman Draft · First Bowman · First autograph
Explore the checklist tool

More Tampa Bay Rays profiles

Organization reflects each player's saved assessment.