Detroit Marathon is always a well organized event and they are very thoughtful to all the participants. I had one experience prior to this race and it was last year during covid and they are VERY flexible and provided many different options for the participants that were not able to run, run virtually, move it to the following year or two years and etc. Sharing this to let you know, don't worry about Covid, if anything happens, this race is what you want to be signed up for because they'll take care of you! Overall experience of the 2021 race was amazing, and loved every part of it! Highly recommend it! Just know that if you're looking for a beautiful scenery, maybe this race is not for you, there was only ONE part that I loved and it was the route taking us on Bell Isle (really windy there, but definitely worth the view).