International Mathematical Olympiad 2025

10 July 2025 - 20 July 2025

Sunshine Coast QLD, Australia

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Welcome to IMO 2025 Australia

The Australian Maths Trust, on behalf of the Australian mathematics community, is excited and honoured to host the 66th International Mathematical Olympiad on the Sunshine Coast, Queensland, Australia in 2025.

The IMO is the largest and most prestigious of all the international Olympiads, having grown from seven countries to over a hundred each year. IMO brings the brightest young minds from around the world and represents the culmination of many years of mathematical endeavour and hundreds of attempts at solving problems. Australia has participated since 1981 and has hosted only once before (Canberra, 1988).

The Sunshine Coast is the selected location. It is sunshine by name and sunny by nature with more than 100km of coastline where the rainforest meets the sea. You might even meet some of our beautiful native wildlife – which you may find in your backyard (just remember to keep a safe distance as they can be protective of their space).

Enjoy our beautiful coastal surroundings while you’re here!

The Australian Maths Trust is committed to ensuring that every student and young person who engages with the AMT is safe, respected and protected from physical, emotional, psychological or sexual harm. We strive to create a culture of child safety, underpinned by strong leadership, inclusive practices, and ongoing accountability.

Sponsors

Our valued partners

IMO 2025 is hosted in Australia thanks to our valued partners

Volunteer

Get Involved

The Australian community will come together to celebrate this international event in 2025 – and we need your help!

We have filled all roles for Team Guides and General Volunteers. Thank you to all who applied.

We still require Volunteer Exam Invigilators from the Sunshine Coast region or Australians from other regions with the means to travel and stay in the area.

  • Team Guides
  • Exam Invigilators
  • General Volunteers

All volunteers must have a valid QLD Blue Card or be prepared to obtain one prior to IMO 2025. Due to this requirement, we can only accept applications from Australian volunteers after 10 May 2025.

Event details

Program dates

9 July 2025 – Early Arrival Day (Leaders) 

10 July 2025 – Arrival Day (Leaders) 

12 July 2025 – Coordinator Arrival Day 

13 July 2025 – Student Arrival Day 

14 July 2025 – Opening Ceremony 

15 July 2025 – Contest Day 1 

16 July 2025 – Contest Day 2 

17-18 July 2025 – Coordination and Student Excursions 

19 July 2025 – Closing Ceremony and Great Australian BBQ Farewell Event 

20 July 2025 – Departure Day 

Deadlines

IMO2025 key deadlines

Friday 14 February 2025

  • Online registration of countries / territories

Friday 14 March 2025

  • Online registration of Leaders / Deputies / Obs
  • Online registration of student numbers

Friday 18 April 2025

  • Final date to submit problems for Shortlist
  • Final date to request remote sitting

Wednesday 30 April 2025

  • Online registration of full student details

Friday 31 May 2025  – absolute deadline

  • Full payment of fees

Friday 6 June 2025

  • Online registration of travel details

Contact

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