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MATHEMATICSUNITED KINGDOM✓ VERIFIED · LAST CHECKED 13 JUL 2026

Mathematical Olympiad for Girls

A UK mathematics olympiad where girls and young women solve five challenging proof-based problems. Open to school-nominated students across the UK, with each school able to enter up to four participants. Rated Expert Level, with difficulty mainly coming from advanced problem-solving, rigorous mathematical reasoning and written proofs.

Verified information

Competition details can change. Always confirm dates, eligibility and entry requirements on the official organiser's website.

Official website ↗

OVERALL COMPETITION LEVEL

Expert Level

5 evaluation dimensions have source-backed automatic scores; 0 dimensions need conflict review.

01

Competition overview

Key information

Eligible ages

15–18

School level

(UK Schools Only) England and Wales: Year 11 and above (younger students may be entered at the school's discretion) Scotland: S4 and above Northern Ireland: Year 12 and above

Registration method

School Only

Competition stages

Time limit 2.5 hours

Fee

2 free entries per school, then up to 2 paid entries at £25 each.

Online / in-person

In-person

02

Dates

Competition timeline

Registration opens

Not yet announced by the organiser

Registration closes

25 Aug 2026

Competition starts

22 Sept 2026

Competition ends

23 Sept 2026

03

Editorial perspective

Our Take

The Mathematical Olympiad for Girls is a serious proof-based competition for girls in the upper-secondary age range. Its purpose is not simply to produce another timed score. The problems ask students to explore a mathematical structure, make a conjecture or discover an invariant, and then turn that discovery into a complete written solution. In that respect, MOG belongs much closer to Olympiad mathematics than to ordinary school examination practice. MOG also has a wider role in the UK pathway. It gives talented female mathematicians an identifiable route into advanced problem solving and can help students build the confidence needed for later BMO, Olympiad team or university mathematics opportunities. It is not a qualifying round for the International Mathematical Olympiad, and a strong MOG result should not be presented as an automatic step towards an international team. The educational relationship is one of preparation and participation, not direct qualification. Students who thrive in MOG usually enjoy depth more than speed. They are willing to write several versions of an argument, learn from elegant solutions and accept that a single problem may occupy an entire session. Parents should therefore support regular exposure to proof and discussion rather than pushing a large volume of routine questions. We rate MOG at the Expert Level because the problem-solving and written-output demands are advanced and the entry is selective. It is best approached as a substantial mathematical experience in its own right.

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Source information

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