News

The Junior Mental Calculation World Championship returned to Bielefeld, 04–06 October, as organized by Caroline Merkel since 2008 [official JMCWC website]. Around 80 competitors from Algeria, Bulgaria, the Czech Republic, Egypt, Germany, Hungary, India, Japan, Mexico, Panama, Qatar, Serbia, South Africa, Turkmenistan and the UAE qualified and attended—some for their first time, while others have … Read more

After the success of last year’s event, the Global Mental Math Olympiad (GMMO) will return on 01–02 November 2025 in Dubai. It is organized by LiveMCL, who also run the Mental Math World Cup (online) each Summer. This event is open to participants aged 6+ in three categories: Challenger (ages 6–8) Master (ages 9–11) Grandmaster (ages … Read more

Season 2 of the GMCA’s Mental Calculation League (official website) has concluded, with 25 competitors in the main event, and around 100 head-to-head matches held over several months. This was an online event open to all ages, allowing participation worldwide. Qualified contestants competed against each other in head-to-head matches in groups of 6. The top … Read more

The Mental Calculations World Championship (online) 2025 (hosted by the Mind Sports Olympiad as part of their Grand Prix) has just finished, and we have the winners! Out of nearly 100 entrants, 23 people from 8 countries qualified to this semi-final (Saturday 22nd February), and the top competitors were invited to the final (Sunday 13th … Read more

Registration is open for the Junior Mental Calculation World Championship 2025! Since 2008 this international championship in mental calculation has taken place. Caroline Merkel and the team welcome all young people around the globe aged up to 19 to participate and challenge their skills. I attended the 2018–2024 events as an official trainer, and I’ll be there … Read more

Update January 2025: registration link is now available on the MSO site. The first mental calculation competition of the year 45² is now confirmed: the Mind Sports Olympiad will once again host their online event this Spring as the Mental Calculations World Championship! This will be a part of their Grand Prix, which includes over 100 … Read more

Memoriad 2024 took place 06–10 November in the UAE (official website), following the previous events in 2008, 2012 and 2016. It is an international competition of memory and mental calculation. Each competitor could choose a selection of events from the 12 events available. Although the event was announced publicly only 2 months beforehand, 121 competitors … Read more

The Junior Mental Calculation World Championship returned to Bielefeld, 21–23 September, as organized by Caroline Merkel since 2008 [official JMCWC website]. 84 competitors from Algeria, Bulgaria, Canada, the Czech Republic, Germany, Hungary, India, Japan, Kyrgyzstan, Mexico, Qatar, Serbia, South Africa and the UAE qualified and attended—some for their first time, while others have attended for … Read more

The 10th Mental Calculation World Cup has just taken place on the weekend of the 14th September 2024, organised by Ralf Laue. Many of the competitors had met before at previous World Cups or at other international events, but others made their debut here. Congratulations to everyone involved! Results are also available on the MCWC official … Read more

Nearly 8 years since the last event, Memoriad (official website) will be held again this November—registration is now open! This is an international competition of Mental Calculation and Memory where you have the opportunity to compete in various events—similar to athletics in the Olympic Games. Each event uses the Memoriad Simulator software, allowing for real-time … Read more