Olympiad exam dates 2026–27
Tentative SOF schedule. Dates change — always confirm on sofworld.org.
| Olympiad | Level 1 dates | Registration | Level 2 | Result |
|---|---|---|---|---|
| IMO | Oct 22 / Nov 19 / Dec 10, 2026 | Sept 2026 | Feb 2027 | Mar 2027 |
| IEO | Sept 24 / Oct 20 / Nov 5, 2026 | Aug 2026 | Mar 2027 | Apr 2027 |
| NSO | Oct 15 / Nov 12 / Dec 3, 2026 | Sept 2026 | Feb 2027 | Mar 2027 |
| IGKO | Sept 10 / Oct 1, 2026 | Aug 2026 | — | Nov 2026 |
| ISSO | Nov 30, 2026 / Jan 19, 2027 | Oct 2026 | — | Feb 2027 |
Disclaimer: these dates are indicative. OlympiadLive is not the exam body; verify all dates and registration deadlines with your school or the SOF website.