The American Board of Anesthesiology exam is widely considered one of the most difficult exams in medicine. Over the last several years, the average successful pass rate has fluctuated between 71 and 88% among first-time test-takers. Over the last ten years, the overall pass rate, which includes repeat test-takers, has averaged around just 60%. There are a few reliable indicators of a candidate’s chance of passing the exam. According to a study published in the International Journal of Medical Education, first-attempt scores on both the USMLE Step 2 exam and the CA2 ITE are strong performance indicators of how well a candidate will do when taking the ABA exam.