DeBakey High School admissions requirements don't include an entrance exam — but that doesn't make getting in easier. Your child's eligibility for Michael E. DeBakey High School for Health Professions is determined entirely by their HISD Magnet Matrix score. That number is calculated from two academic records your 7th grader is building right now: their core course grades and their standardized test scores. I've seen students miss DeBakey's threshold by a single matrix point. Not because they weren't capable — but because their families didn't know which grades and scores were being counted until it was too late to change anything.
DeBakey Admissions at a Glance
- Admissions test: None — no school-administered exam required
- Eligibility tool: HISD Magnet Matrix (Formula 1 or Formula 2, whichever is higher)
- Minimum qualifying score: 80 out of 100
- What feeds the matrix: 7th-grade core GPA + STAAR Math & Reading scores (or ERB / IOWA / MAP equivalents)
- Selection method: Random lottery among all students scoring 80+
- Lottery priorities: HISD-resident students first; siblings of current DeBakey enrollees second
- Application window (2026–2027 entry): Phase 1: December 9, 2025 – February 27, 2026
- Seat offer notifications: April (emails sent in waves beginning April 8, 2026 — verify current dates at the HISD School Choice portal)
- Out-of-district students: May apply; non-STAAR scores accepted; HISD residents receive lottery priority
What Is the HISD Magnet Matrix Score and How Is It Calculated for DeBakey Admissions?
The HISD Magnet Matrix is a 100-point score HISD calculates automatically when your child applies to a magnet school. For DeBakey, the minimum qualifying score is 80. HISD runs two separate formulas and applies whichever produces the higher result — you don't choose, and you don't need to calculate it yourself.
Formula 1 combines your child's 7th-grade STAAR Math and STAAR Reading scores with their end-of-year core course grades. Core courses include math, English language arts, science, and social studies. The STAAR component and the GPA component are each weighted within the 100-point scale.
Formula 2 uses end-of-year 7th-grade core course grades only — no standardized test scores. This formula protects students who had a rough test day but kept their classroom grades strong all year.
HISD applies the higher of the two scores automatically. Here's what that means in practice: a student with a 95-average core GPA but below-average STAAR scores may still qualify if Formula 2 alone clears 80. A student with strong STAAR scores but a dip in one semester's grades may benefit from Formula 1 pulling the score up.
Students from private schools or out-of-district campuses who lack STAAR scores may submit ERB, IOWA, or MAP results instead. HISD converts those into matrix-equivalent points through an internal process it does not publish publicly. If your child takes MAP, a math RIT score of 230+ and a reading RIT score of 225+ in 7th grade are community-estimated ranges that tend to correspond to the upper percentiles supporting a strong Formula 1 result — but treat these as rough targets, not official HISD benchmarks. Contact the School Choice office directly if you need guidance on your child's specific scores.
For more context on how the HISD magnet matrix works across different schools, see our [LINK: /guides/hisd-magnet-matrix-explained] complete HISD magnet matrix guide.
No Entrance Exam: What DeBakey High School Admissions Requirements Actually Ask For
DeBakey does not administer its own admissions test, interview, portfolio review, or writing sample. That removes one major item from your prep list. A Health Sciences/Math Readiness test was formerly part of the process — it no longer appears to be required, but confirm this directly with DeBakey or HISD School Choice before the application window opens, since program requirements can change.
The only academic evidence reviewed is your child's existing school records — specifically the 7th-grade report card and standardized test scores already on file with HISD. For HISD students, these are pulled automatically when you submit the magnet application through the HISD School Choice portal.
This also means there is no separate exam score to improve after the fact. Your child's 7th-grade STAAR scores and grades are locked in before applications even open in December. The real preparation window is 6th grade and the first half of 7th grade — not the month before the application deadline.
Does Scoring 80 on the HISD Magnet Matrix Score Guarantee Admission to DeBakey?
Scoring 80 qualifies your child for the lottery. It does not guarantee a seat. Every student who reaches the threshold is entered into a random draw — a student scoring 93 has the same lottery odds as a student scoring 80.
DeBakey is consistently the highest-demand high school magnet in HISD by application volume. I've seen families assume that qualifying meant getting in, then be blindsided by a waitlist letter in April. The school accepts a limited number of incoming 9th graders each year, and demand routinely exceeds available seats.
Two factors give students lottery priority without affecting their matrix score: HISD residency and having a sibling currently enrolled at DeBakey. If your family lives within HISD boundaries, you already hold a priority position in the draw. Out-of-district applicants are eligible but compete for remaining seats after the resident lottery is complete.
Scoring well above 80 — say, 85 to 90+ — matters for one practical reason: it creates a buffer if HISD disputes a grade or score during verification. A matrix score of exactly 80 could fall below the threshold if a single data point is adjusted. Building a 5-point cushion above the minimum is a smart goal, not an obsessive one.
How to Boost Your Child's HISD Magnet Matrix Score: STAAR Prep and GPA Strategy
Your 7th grader's spring STAAR scores are, functionally, their DeBakey admissions evidence. Treat them that way.
STAAR Math and the HISD Magnet Matrix Calculator: Target the 80th Percentile or Higher
7th-grade STAAR Math covers proportional relationships, expressions and equations, geometry, and data analysis. Students who reach the 80th percentile or above generate the strongest standardized-score contribution to Formula 1. Practice with TEKS-aligned problems that require multi-step reasoning — not just computation. Data interpretation questions (reading tables, graphs, and charts) appear consistently and reward the kind of analytical thinking that STEM critical thinking practice builds directly.
STAAR Reading Skills That Support Your DeBakey Matrix Score
7th-grade STAAR Reading tests both literary and informational passages. Informational texts — including science articles and historical documents — require students to identify main ideas, evaluate evidence, and draw inferences. These are the same skills tested in formal essay writing. Students who practice constructing written arguments from evidence sources sharpen their reading comprehension at the same time.
Core GPA: Every Course Counts Toward the Matrix
The matrix counts all four core courses: math, ELA, science, and social studies. A single failing six-weeks grade in any of these courses can drag the GPA component below where it needs to be. Monitor grade reports every six weeks, not just at semester end. If your child is struggling in one course, address it before the cumulative average drops — there is no grade replacement mechanism in the matrix.
Students who begin structured STAAR-aligned practice 9–12 months before the test tend to score 10–15 percentile points higher than students who cram in the final four weeks. That gap can mean the difference between a matrix score of 77 and a matrix score of 83.
DeBakey High School Acceptance Rate and Application Timeline: What to Expect
HISD does not publish an official DeBakey acceptance rate. Based on community-reported data, DeBakey typically receives several thousand applications for fewer than 200 incoming 9th-grade seats — putting the implied acceptance rate somewhere in the range of 10–15%. Treat this as an estimate, not an official figure. Verify current capacity numbers directly with HISD School Choice.
The Phase 1 application window for 2026–2027 entry ran from December 9, 2025 through February 27, 2026. Seat offer emails began arriving in waves starting April 8, 2026. Submitting on December 9 versus February 25 has zero effect on your child's lottery odds — all Phase 1 applications are pooled together. Phase 2 applicants go to the end of the Phase 1 waitlist. At a school this competitive, Phase 2 is a significantly weaker position.
Families offered a seat must respond within the window specified in their offer email. Missing that deadline forfeits the seat. Waitlisted families should accept a backup school seat right away — waiting on DeBakey without a backup risks losing all enrollment if district deadlines pass.
Always verify current dates and rules on the official HISD School Choice portal at debakey.houstonisd.org. Dates shift year to year and this article may not reflect mid-cycle changes.
How to Prepare for DeBakey High School Academics: Summer Before 9th Grade
Winning the lottery is the beginning, not the finish line. DeBakey's curriculum moves into AP coursework and health science content faster than a traditional high school. Students who arrive without strong academic foundations can find the first semester genuinely overwhelming.
The summer before 9th grade is a critical window. Strengthen algebra fundamentals — DeBakey's math sequence accelerates quickly. Practice formal essay writing, particularly building an argument from scientific evidence. DeBakey's health science classes assign research-style writing from the first month of school.
I've seen students arrive at competitive magnet programs underprepared and spend their entire first semester catching up instead of thriving. Two months of focused summer work — on data reasoning, scientific writing, and reading stamina — makes a real difference when grades start counting toward college transcripts.
Frequently Asked Questions: DeBakey High School Admissions Requirements and the HISD Magnet Matrix
Q: What matrix score do I need to qualify for DeBakey High School?
A: You need a minimum HISD Magnet Matrix score of 80. HISD calculates this using two formulas: Formula 1 combines 7th-grade STAAR Math and Reading scores with core course grades; Formula 2 uses core grades only. The higher of the two scores is applied automatically. Hitting exactly 80 qualifies your child for the lottery, but scoring 85 or above gives you a practical buffer against any data verification dispute during processing. Always confirm the current threshold directly with HISD School Choice before applying.
Q: Which STAAR subjects count toward the DeBakey magnet matrix score?
A: Only 7th-grade STAAR Math and STAAR Reading count toward Formula 1 — STAAR Science and Social Studies scores are not included in the matrix calculation. Each score is combined with the student's GPA across all four core courses: math, ELA, science, and social studies. Private school students and out-of-district applicants without STAAR scores may substitute ERB, IOWA, or MAP results, which HISD converts into matrix-equivalent points through an internal process it does not publish publicly.
Q: Does qualifying for the DeBakey lottery guarantee admission?
A: No. A matrix score of 80 or above enters your child into a random lottery — it does not guarantee a seat. DeBakey is consistently the highest-demand high school magnet in HISD by total application volume. HISD-resident students and siblings of current DeBakey enrollees receive lottery priority. Because selection is random among all qualified applicants, there is no academic advantage to scoring 95 over 82 once the threshold is cleared. Every qualifying family should also accept a backup school seat in case the lottery doesn't go their way.
Q: Can my child prepare for the STAAR test to improve their matrix score?
A: Yes — STAAR is a learnable, TEKS-aligned assessment that responds to structured preparation. Targeted practice in 7th-grade math topics (proportional reasoning, equations, data analysis) and informational reading comprehension can raise STAAR scores in a meaningful way. Students who practice interpreting charts, graphs, and evidence-based passages build precisely the skills STAAR rewards in its most challenging questions. Beginning this work in 6th grade gives your child a full academic year before the 7th-grade STAAR scores that feed the matrix are locked in.
Q: Does applying early in the Phase 1 window improve my child's lottery odds at DeBakey?
A: No — HISD pools all Phase 1 applicants together regardless of submission date, so applying on December 9 carries the same lottery odds as applying on February 27. What matters is applying during Phase 1 at all. Phase 2 applicants are placed at the end of the Phase 1 waitlist, which at DeBakey — the most oversubscribed HISD high school magnet — is a significantly weaker position. After you submit, confirm your application was received and that all academic records were pulled correctly.
Q: Can my child apply to DeBakey if they attend a private school or live outside HISD?
A: Yes, with important caveats. Out-of-district students are eligible to apply, but HISD-resident students receive lottery priority. Private school students who lack STAAR scores can submit ERB, IOWA, or MAP results in their place. Out-of-district families should contact the HISD School Choice office before applying to confirm current rules — the number of seats available to non-HISD residents varies by year and is not publicly guaranteed in advance.
Q: What happens if my child is waitlisted for DeBakey and how far does the waitlist typically move?
A: Waitlisted students are ranked in the order lottery numbers were drawn. Movement depends entirely on how many accepted students decline their seat — usually families choosing another magnet or a private school. DeBakey's waitlist historically moves less than at lower-demand HISD magnets, because most families accept their offer when they get one. Seat notifications typically arrive in April in waves — verify current timelines on the HISD School Choice portal, since these dates shift year to year. Waitlisted families must accept a backup school right away. Holding out for DeBakey without a backup risks losing all enrollment if district deadlines pass first.
Q: How should my child prepare academically over the summer before starting at DeBakey?
A: Focus on three areas: algebra readiness (DeBakey's math sequence accelerates quickly in 9th grade), scientific reading stamina (health science courses assign dense informational texts from week one), and formal essay writing (DeBakey's AP and health science classes require structured written arguments grounded in evidence from the start). Students who arrive having already practiced organizing a scientific argument into clear paragraphs adapt faster to DeBakey's writing demands than students who encounter that structure for the first time in a graded assignment.
Build the STAAR Skills That Feed the DeBakey HISD Magnet Matrix Score
Your child's 7th-grade STAAR scores count directly toward their DeBakey matrix score. The prep window is open right now. The analytical skills those tests reward — reading data, interpreting evidence, solving multi-step problems — are exactly what our STEM Critical Thinking Practice Tests are built to develop.
Our practice tests are designed around the same rigorous reasoning STAAR Math and Reading demand at the 75th–90th percentile level. Working through complex data sets, scientific passages, and multi-step quantitative problems builds the kind of performance that shows up in your child's score report — and in their matrix number when it matters most.
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