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- 2024 USAJMO/USAMO problems and solutions were leaked close to the start time of the test. The impact is probably small to moderate due to the timing.
- 2024 AIME II were not leaked in USA.
- 2024 AIME I were leaked in large scale, several days before the contest date.
- 2024 AMC AMC 8 were leaked several days before the testing date in large scale and throughout the test week.
- 2023 AMC 10B and AMC 12B were leaked in large scale before the contest date.
- 2023 AMC 10A and AMC 12A were leaked several days before the contest. The test were even publicly available with at hundred of views before it was taken down.
- 2023 AIME II were not leaked in USA
- 2023 AIME I were leaked, several days before the contest date.
- 2022 AMC 10B and AMC 10B were leaked possibly in small scale.
- 2022 AMC 12A and AMC 12A were leaked possibly in small scale.