| Application deadline | Unconfirmed — check official site | February 1, 2027 (2027 cycle) | April 19, 2027 (2027 cycle) |
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| Cost | Unconfirmed — check official site | Free attendance; check separate expenses (2027 cycle) | $2,750 (2027 cycle) |
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| Financial aid | Unconfirmed — check official site | Unconfirmed — check official site | Unconfirmed — check official site |
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| Expenses and aid conditions | Unconfirmed — check official site | On-campus boarding: $0. Covered by program funders.; Food: $0. Covered by program funders. (2027 cycle) | Application fee: $0; Deposit to reserve a spot: $100. Due once the application is approved; Suggested spending money: $100–$150 (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 | Up to grade 12; Grade timing: Unconfirmed — check official site | Grades 10–11 when applying; summer rising grade is one higher | Grades 10–11; Grade timing: Unconfirmed — check official site |
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| Additional eligibility | Requirement: Open to grades up to 12; Requirement: Mathematical maturity of an advanced high-school student | Residency: Texas high school students; Requirement: Open to students currently in grades 10–11 when applying; Requirement: Students enrolled in summer school during the program dates cannot participate (full-time attendance required) | Requirement: Open to grades 10–11; Requirement: Open in the summer after sophomore or junior year (students finishing grade 10 or 11); Requirement: One year of chemistry or physics |
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| Session dates or duration | Unconfirmed — check official site | Starts June 20, 2027; Ends June 25, 2027 (2027 cycle) | Starts June 7, 2027; Ends July 22, 2027 (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 | Live online classes scheduled in Pacific time | Austin, TX | Terre Haute, IN |
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| Selection and application | Selection: Applicants must persuade Euler Circle that they are prepared and a good instructional fit; Euler Circle says ordinary seat scarcity usually is not the main constraint and does not publish acceptance statistics. | Selection: McCombs describes desired qualities but publishes no current applicant count, cohort size, acceptance rate, fixed GPA cutoff, identity quota, geographic quota, scoring rubric, interview process, or waitlist policy. Historical cohort figures must not be treated as a future guarantee. Application materials: Essay(s); One letter of recommendation | Selection: Earlier 2026 instructions described selective application followed by first-come session placement after approval. Confirm the current 2027 review and placement process; no acceptance rate is published. Application materials: Recommendation from a counselor or teacher |
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| Official sources | Source 1 · checked 2026-10-24Source 2 · checked 2026-10-24Source 3 · checked 2026-10-24Source 4 · checked 2026-08-20 | Source 1 · checked 2026-10-24Source 2 · checked 2026-08-20Source 3 · checked 2026-08-20 | Source 1 · checked 2026-10-24Source 2 · checked 2026-10-24Source 3 · checked 2026-10-24 |
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