| Application deadline | Unconfirmed — check official site | Unconfirmed — check official site | February 12, 2027 (2027 cycle) |
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| Cost | Last year's cycle (2026): $3,900; 2027: Unconfirmed — check official site | Unconfirmed — check official site | $600 (2027 cycle) |
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| Financial aid | Last year's cycle (2026): Need-based scholarships for online and commuter students: Amount: Unconfirmed — check official site; 2027: Unconfirmed — check official site | Last year's cycle (2026): Free for U.S. families with adjusted gross income under $80,000; need-based aid up to full cost: Amount: Unconfirmed — check official site. Aid for international students is decided case by case.; 2027: Unconfirmed — check official site | Fee waiver for students eligible for free or reduced lunch: Amount: Unconfirmed — check official site. Granted to the extent funds are available. (2027 cycle) |
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| Expenses and aid conditions | Last year's cycle (2026): Non-refundable application fee: $60. A fee waiver can be requested.; Lab kit fee (estimated, plus taxes and shipping): $265. International students may incur customs fees.; Need-based scholarships for online and commuter students: Amount: Unconfirmed — check official site; 2027: Unconfirmed — check official site | Last year's cycle (2026): Free for U.S. families with adjusted gross income under $80,000; need-based aid up to full cost: Amount: Unconfirmed — check official site. Aid for international students is decided case by case.; 2027: Unconfirmed — check official site | Fee waiver for students eligible for free or reduced lunch: Amount: Unconfirmed — check official site. Granted to the extent funds are available. (2027 cycle) |
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| Stipend or pay | Unconfirmed — check official site | Unconfirmed — check official site | Unconfirmed — check official site |
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| Eligibility | Grades 9–12 when applying; check the provider's rules for graduating seniors | Grades 10–12; Grade timing: Unconfirmed — check official site | Grade 10 when applying; summer rising grade is one higher |
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| Additional eligibility | Requirement: Open to students currently in grades 9–12 when applying; Requirement: As and Bs in high school math and science classes; Requirement: Completed Algebra II; Requirement: Completed a course covering trigonometric functions; Requirement: Completed a full year of high school chemistry and/or physics with a lab (or a 4 or 5 on AP Chemistry or AP Physics 1); Requirement: Recent high school graduates may attend the summer before college | Ages 14–18; Requirement: Open to grades 10–12; Requirement: Have completed 9th grade (or its equivalent) by the first day of the program; Requirement: Not yet enrolled as a full-time college or university student; Requirement: Graduating seniors may attend in the summer between high school and college or during a gap year | Residency: Missouri; Requirement: Open to students currently in grade 10 when applying; Requirement: Attend high school in Missouri or be homeschooled in Missouri |
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| Session dates or duration | Catalog terms: 5–6 weeks; 2027: Unconfirmed — check official site | Starts June 27, 2027; Ends August 7, 2027; 6 weeks (2027 cycle) | Starts June 13, 2027; Ends July 3, 2027; 3 weeks (2027 cycle) |
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| Format | Online | In person | In person |
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| Housing and supervision | Non-residential. Supervision and housing details: Unconfirmed — check official site | Residential. Supervision and housing details: Unconfirmed — check official site | Residential. Supervision and housing details: Unconfirmed — check official site |
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| Location | Worldwide synchronous participation, subject to Eastern Time attendance and lab-kit shipping/customs feasibility | Boston, MA | Columbia, MO |
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| Selection and application | Selection: Completed applications are academically reviewed. Rising juniors and seniors are typical, talented rising sophomores may be considered, and older students receive priority when space is limited. Programs can fill before final deadlines; no acceptance rate is published. Application materials: One brief required essay and one brief optional essay; Teacher recommendation | Selection: About 80 high-school students are selected through demonstrated mathematical thinking in the problem set, academic context, recommendation, transcript, and short answers. PROMYS does not publish the current applicant count or acceptance rate. Application materials: One letter of recommendation | Selection: School nomination allotments limit the pool, a statewide committee evaluates academic and qualitative criteria, and about 330 scholars are expected in 2027. MSA does not publish a current nomination count or acceptance rate. Application materials: Two letters of recommendation, at least one from a teacher; Two essays of 300-350 words |
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| Official sources | Source 1 · checked 2026-10-24Source 2 · checked 2026-10-24Source 3 · checked 2026-10-24Source 4 · checked 2026-10-24Source 5 · checked 2026-08-21Source 6 · checked 2026-08-21Source 7 · checked 2026-08-21Source 8 · checked 2026-08-21 | Source 1 · checked 2026-10-24Source 2 · checked 2026-10-24Source 3 · checked 2026-10-24Source 4 · checked 2026-08-20Source 5 · checked 2026-08-20Source 6 · checked 2026-08-20Source 7 · checked 2026-08-20 | Source 1 · checked 2026-10-24Source 2 · checked 2026-10-24Source 3 · checked 2026-10-24Source 4 · checked 2026-10-24Source 5 · checked 2026-08-22 |
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