2025 Boston Marathon Qualifying Criteria. For the 2025 boston marathon, the qualifying window began on september 1, 2023 and was open through september 13, 2024. Find detailed race information including course difficulty, average temperatures,.

June 7, 2025 god’s country marathon race series potter county,. The baa officially announced that there were 36,406 qualified applicants for the 2025 boston marathon.