Leak Tracker

  • 2026 AMC 8 was severely leaked, although MAA released at least three different versions of the test papers.
  • 2025 AMC 10B/12B was leaked about one day before the testing date on a large scale. The US version was leaked. The problems given to some part of China were changed slightly.
  • 2025 AMC 10A/12A was leaked about one day before the testing date on a large scale. The US version was leaked. The problems given to some part of China were changed slightly.
  • 2025 AIME II was leaked about 7 to 8 hours before the test. Rumor has that the leak came from either Singapore or Asdan (the smaller org in China). The problems given to amc-china (the bigger org in China) were changed slightly. The solutions were incomplete by the time the test started.
  • 2025 AIME I was only offered in USA, the problems were leaked about 90 minutes before the test. There were multiple “teachers” working on the solution. But due to the time limits, the solutions were incomplete by the time the test started.
  • 2025 AMC AMC 8 was leaked several days before the testing date on a large scale and throughout the test week.
  • 2024 AMC 10B/12B was leaked at least one day before the testing date on a large scale. The problems given to some part of China were changed slightly.
  • 2024 AMC 10A/12A was leaked at least one day before the testing date on a large scale. The problems given to some part of China were changed slightly.
  • 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 was not leaked in USA.
  • 2024 AIME I was leaked on a large scale, several days before the contest date.
  • 2024 AMC AMC 8 was leaked several days before the testing date on a large scale and throughout the test week.
  • 2023 AMC 10B and AMC 12B were leaked on a 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 was not leaked in USA
  • 2023 AIME I was leaked several days before the contest date.
  • 2022 AMC 10B and AMC 10B were leaked possibly on a small scale.
  • 2022 AMC 12A and AMC 12A were leaked possibly on a small scale.
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