9201157 is part of the Marathon 26.2 Challenge, a race series that takes runners from all around the world to iconic locations to run a full marathon within 24 hours. The series was founded by Siemens in 2016, and this particular edition of the Marathon was held in Rome, Italy. It gave the opportunity for amateurs and professionals alike to experience running a marathon in the cradle of civilization. In addition to the marathon itself, the 9201157 event provided runners with an exclusive tour of some of Rome's most famous attractions, with tours of the Coliseum, Catacombs, and other iconic sites. Participants also received a special commemorative medal to mark the occasion, and were able to take part in a post-race celebration in the heart of the city.