| Application deadline | Unconfirmed — check official site | Unconfirmed — check official site | March 1, 2027 (2027 cycle) |
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| Cost | Unconfirmed — check official site | Unconfirmed — check official site | Unconfirmed — check official site |
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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 | Last year's cycle (2026): SPROG 2026 ticket: $0. Participants could select the USD 0 option with the published SPROG26 code.; Optional contribution: $0–$200. Voluntary contribution toward Sierra Club's costs.; Four nights of dorm lodging and bedding: $0. Provided by the program.; Program meals: $0. All meals were provided.; 2027: Unconfirmed — check official site | Unconfirmed — check official site | Unconfirmed — check official site |
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| Stipend or pay | Unconfirmed — check official site | Unconfirmed — check official site | Catalog terms: Weekly salary: $500; 2027: Unconfirmed — check official site |
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| Eligibility | Unconfirmed — check official site | Unconfirmed — check official site | Unconfirmed — check official site |
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| Additional eligibility | Ages 15–25; Requirement: Be age 15–25 by August 5, 2026; Requirement: Attend the full five-day residential session; Requirement: Provide emergency, medical, dietary, accessibility, travel, and room information; Requirement: Sign the participant waiver; Requirement: Obtain a parent signature if under 18; Exclusion: Applicants younger than 15 or older than 25 for the 2026 session | Requirement: Normally not have completed high school before class begins; Requirement: Demonstrate the mathematical maturity of an advanced high-school student; Requirement: Be prepared for intensive college-level lectures, problems, independent work, and mathematical communication; Requirement: Meet any future course-specific readiness or scheduling requirements; Exclusion: Assuming grades 9-12 is a fixed rule; sufficiently prepared middle-school students may apply; Exclusion: Assuming competition mathematics, prior research, a published prerequisite course, or Bay Area residence is required; Exclusion: Assuming admission, financial aid, academic credit, publication, recommendation, or a research result is guaranteed | Citizenship: U.S. citizen; Residency: Enrolled at an Illinois high school; Requirement: Senior in 2027–28 or 2027 graduate; proof of insurance |
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| Session dates or duration | Last year's cycle (2026): Starts August 5, 2026; Ends August 9, 2026; 0.7 weeks; 2027: Unconfirmed — check official site | Unconfirmed — check official site | Starts July 12, 2027; Ends August 6, 2027; 4 weeks (2027 cycle) |
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| Format | In person | Unconfirmed — check official site | Unconfirmed — check official site |
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| Housing and supervision | Residential. Supervision and housing details: Unconfirmed — check official site | Unconfirmed — check official site | Unconfirmed — check official site |
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| Location | Little Switzerland, North Carolina | Unconfirmed — check official site | Unconfirmed — check official site |
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| Selection and application | Selection: Registration-based 2026 session; capacity and selection method were not stated | 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. | Unconfirmed — check official site |
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| Official sources | Source 1 · checked 2026-08-20Source 2 · checked 2026-08-20Source 3 · checked 2026-08-20 | Source 1 · checked 2026-10-12Source 2 · checked 2026-08-20Source 3 · checked 2026-08-20Source 4 · checked 2026-08-20 | Source 1 · checked 2026-10-10 |
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