The 2025 Mental Calculations World Championship will take place online in three stages:

  • Qualifier: Sunday 26th January 13:30 UTC+0
  • Semi-Final: Saturday 22nd February 13:30 UTC+0
  • FINAL: Date and Time TBC with the finalists.
To register click here. The deadline to register is Monday 20th January.
 
Full event details can be found on the World Mental Calculation website.