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Events
Correspondence Contest
Nov 2, 2025
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Nov 8, 2025
Certified School
The annual Correspondence is held every November at abacus schools certified by Soroban League North America. Students compete in written problems featuring multiplication, division, and addition/subtraction at their own schools.
Students are then ranked by birth year and all students receive an award.
Event Page
Results
International Abacus Classic 2025
Aug 9, 2025
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Aug 10, 2025
Hilton Orange County/Costa Mesa
The International Abacus Classic (IAC) is your gateway to an unforgettable adventure—an annual event that alternates between Japan and the United States, bringing together students who share a passion for the abacus and a love of learning.
Event Page
Results
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