USA Mathematical Olympiad (USAMO)
Rated Expert, This invitation-only national olympiad requires complete proofs for six problems and feeds the U.S. international mathematics team pathway. Entrants qualify through AMC and AIME; detailed 2027 invitation criteria are still pending. Success requires rigorous, original arguments across algebra, combinatorics, geometry and number theory over nine hours of examination time.
Verified information
Competition details can change. Always confirm dates, eligibility and entry requirements on the official organiser's website.
Official website ↗Competition overview
Key information
School level
School students invited by the MAA through the AMC/AIME pathway; detailed 2027 qualification policy pending
Registration method
Qualification Required
Competition stages
AMC 10/12, AIME, USAMO, Mathematical Olympiad Program and possible U.S. international-team selection
Fee
Not yet announced by the organiser
Online / in-person
In-person
Dates
Competition timeline
Registration opens
Not yet announced by the organiser
Registration closes
Not yet announced by the organiser
Competition starts
20 Mar 2027
Competition ends
21 Mar 2027
Editorial perspective
Our Take
For 2027, MAA states that USAJMO/USAMO selection will be based primarily on AIME scores and that complete qualification criteria are still to be posted. Do not rely on the prior AMC-index formula for the 2027 cycle.