Proprietary · Secure · Non-Replicable

Admission
Intelligence Database

1,852 verified case studies from students who made it into top US boarding schools. Real stories, real strategies, real results — all in one place.

1,852+ profiles analyzed. 74,100+ school matches computed. 55,200+ admission outcomes modeled. Built over years of boarding school admission intelligence.

1,852
Case Studies
100+
Target Schools
23+
Years of Data
PrepMaster Academy

CASE
ARCHIVE

Admission Intelligence Database
Est. 2005 · Confidential
// Admission Case Archive
Case #001 · 2005
Phillips Exeter
Academy
SSAT 97thTOEFL 280+ CBTAdmittedGrade 9 · Male
Math Club
Key Spike
Admitted
Result
97
Final %ile
Case #002 · 2006
Groton
School
SSAT 97th7-Day IntensiveAdmittedGrade 9 · Male
Debate
Key Spike
Admitted
Result
97
Final %ile
Case #003
St. Paul's
School (A)
SSAT 98thTOEFL 111AdmittedGrade 9 · Female
Ballet
Key Spike
Admitted
Result
98
Final %ile
Case #004
Middlesex
School
SSAT 98thAthletic RecruitAdmittedGrade 9 · Male
Soccer
Key Spike
Admitted
Result
98
Final %ile
Case #005
Phillips
Andover
SSAT 99thGrade 10AdmittedFemale
Service
Key Spike
Admitted
Result
99
Final %ile
Case #006
Choate Rosemary
Hall (A)
SSAT 97thJr. BoardingAdmittedOn-Campus Interview
Essay
Key Spike
Admitted
Result
97
Final %ile
Case #007
Choate Rosemary
Hall (B)
SSAT 97thFemaleAdmittedSpike Strategy
Spike
Key Spike
Admitted
Result
97
Final %ile
Case #008
Deerfield
Academy
SSAT 98thFinancial AidAdmitted
Leadership
Key Spike
Admitted
Result
98
Final %ile
Case #009
Hotchkiss
School
SSAT 97thFull ScholarshipAdmitted
Scholar
Key Spike
Admitted
Result
97
Final %ile
Case #010
Middlesex
School
SSAT 97thJr. BoardingAdmittedOn-Campus Interview
Theater
Key Spike
Admitted
Result
97
Final %ile
Case #011
St. Mark's
School
SSAT 97thGrade 9 · MaleAdmitted
Essay
Key Spike
Admitted
Result
97
Final %ile
Case #012
Northfield Mt.
Hermon (A)
SSAT 97th30→97 PercentileAdmitted
30th
Start Score
Admitted
Result
97
Final %ile
Case #013
Northfield Mt.
Hermon (B)
SSAT 97thWaitlist→AdmitAdmittedGrade 9 · Male
Waitlist
Initial
Admitted
Result
97
Final %ile
Case #014
The Lawrenceville
School
SSAT 98thSTEM FocusAdmittedGrade 9 · Male
Robotics
Key Spike
Admitted
Result
98
Final %ile
Case #015
The Loomis
Chaffee School
SSAT 97thArts PortfolioAdmittedGrade 9 · Female
Painting
Key Spike
Admitted
Result
97
Final %ile

Every Case
Tells a Story

Behind every admission number is a student who transformed their profile, conquered their fears, and earned their place. These cases are not statistics — they are blueprints for success.

// Cases by Year
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
PrepMaster Academy · Confidential© 2026 PrepMaster Consulting Group
The Black Box

Strategy is Masked.
Outcomes are Verified.

We expose the outcome — initial admission probability vs. the final decision. The intermediate logic (our proprietary matching and optimization algorithm) remains inside a purpose-built black box, accessible only to our system.

Verified Outcomes· Anonymized · Real Data
Initial Match Probability
28
percentile
Final Admission Decision
100
percentile
+257%
Restricted
Restricted
Profile optimization path: [REDACTED] — Proprietary matching algorithm cross-referenced against 8,200 acceptance models for this school tier, identifying 7 critical profile gaps.
Deerfield Academy
8 months
AdmissionInterviewEssay
Initial Match Probability
22
percentile
Final Admission Decision
100
percentile
+355%
Restricted
Competitiveness gap analysis: [REDACTED] — Admission committee decision patterns from 12,500 historical reviews applied, surfacing 5 latent profile strengths overlooked in standard evaluation.
Phillips Academy Andover
6 months
AdmissionProfileExtracurricular
Initial Match Probability
18
percentile
Final Admission Decision
100
percentile
+456%
Restricted
Restricted
Narrative coherence optimization: [REDACTED] — Essay quality benchmarks derived from 31,200 anonymized assessments mapped against this school's historical yield data and decision timeline.
The Lawrenceville School
10 months
AdmissionEssayInterview
Initial Match Probability
14
percentile
Final Admission Decision
100
percentile
+614%
Restricted
Holistic repositioning strategy: [REDACTED] — Recommendation letter pattern analysis from 7,600 samples combined with extracurricular impact scoring across 18,400 activities.
Groton School
5 months
AdmissionRecommendationProfile
All cases are anonymized. Probabilities reflect historical admission data modeling. Strategic methodology is proprietary.
Data Previews

Fragments of the
Full Picture

These declassified admission intelligence fragments demonstrate the granularity of our database — but they are isolated samples. The complete interconnected evaluation framework that produces results cannot be reverse-engineered from fragments alone.

Declassified Data Fragments· Partial · Non-replicable
Profile Analysis
Profile Analysis #14,281
Admission Profile: Demographic Tier 2 Cohort
RegionEast Asia — Korea
School Tier TargetTop-10 Boarding
Profile Dimensions17 scored axes
Competitive Index0.42 / 1.00 (Initial)
Gap Areas Identified[REDACTED — Proprietary]
Optimization Path[REDACTED — Proprietary]
Admission Profiles · PrepMaster DB
Probability Model
Probability Model #5,201
Admission Probability: Top-10 School Band
School CategoryHMC / Ten Schools
Application Cycle2025–2026
Historical Sample Size8,410 outcomes
Variable Weighting Schema[REDACTED — Proprietary]
Confidence Bandp < 0.001
Predictive Accuracy[REDACTED — Proprietary]
Probability Models · PrepMaster DB
School Match
Match Computation #38,920
Student-to-School Compatibility Matrix
Student ArchetypeSTEM-Focused / Leadership
Matched Schools6 (Top-30 Band)
Match Confidence Range0.78 – 0.94
Compatibility Axes[REDACTED — Proprietary]
Culture Fit Score[REDACTED — Proprietary]
Yield Probability[REDACTED — Proprietary]
School Matching · PrepMaster DB
Interview Intel
Interview Eval #8,201
Interview Readiness: Boarding School Track
Evaluation TypeMock Interview — Committee Style
Readiness Score0.64 → 0.93 (post-coaching)
Weakness Domains[REDACTED — Proprietary]
Committee Hot Buttons[REDACTED — Proprietary]
Narrative Alignment[REDACTED — Proprietary]
Outcome CorrelationStrong positive (r = 0.81)
Interview Intelligence · PrepMaster DB
Essay Benchmark
Essay Benchmark #10,440
Admission Essay Quality Assessment
Essay TypePersonal Statement
Quality TierTier 2 (needs refinement)
Narrative Coherence0.58 / 1.00
Committee Resonance Score[REDACTED — Proprietary]
Thematic Alignment[REDACTED — Proprietary]
Suggested Arc Shift[REDACTED — Proprietary]
Essay Benchmarks · PrepMaster DB
Activity Impact
Activity Impact #6,302
Extracurricular: Leadership Trajectory Scoring
Activity CategoryCommunity Leadership
Impact Score Range0.31 → 0.78 (optimized)
Peer Cohort BenchmarkTop 8% of 18,400 entries
Narrative Frame Iterations[REDACTED — Proprietary]
Admission Weight Coefficient[REDACTED — Proprietary]
Predicted LiftCohen's d = 0.76 (Large)
Activity Impact · PrepMaster DB

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Proprietary Evaluation Matrix

The profile-to-school matching framework, admission probability algorithms, and committee decision pattern analysis are original intellectual property. No third-party admission models are used.

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