OTIS Mock AIME 2025 & USEMO 2024 results

Two pieces of news for high school math contest enthusiasts:

OTIS Mock AIME 2025

We’re running the OTIS Mock AIME again this year! It’ll go from December 19, 2024 to January 20, 2025.

New this year is that we’re offering two tests, I and II, and you can try either or both. However, unlike the real AIME, the two versions are intentionally different:

1. The OTIS Mock AIME I is going to be tough. It will definitely be harder than the actual AIME, by perhaps 2 to 4 problems. But more tangibly, it will also have significant artistic license. Problems will freely assume IMO-style background throughout the test, and intentionally stretch the boundary of what constitutes an “AIME problem”.
2. The OTIS Mock AIME II is meant to be more practically useful. It will adhere more closely to the difficulty and style of the real AIME. There will inevitably still be some more IMO-flavored problems, but they’ll appear later in the ordering.

We’ll post at https://web.evanchen.cc/mockaime.html. And the problems will go up on that link on the start date.

USEMO 2024 results

If you haven’t seen, the solutions and results for USEMO 2024 are posted on the archive at https://web.evanchen.cc/usemo.html now.