At Mile 10, the Halfathon and Marathon courses split at the Pinellas Trail, with the half marathon participants heading east back towards the waterfront, and the marathon runners heading west to achieve their marathon mileage, before returning to tne waterfront finish line.

The St. Petersburg Marathon was the first ever 26.2 mile race staged entirely in St. Petersburg. The marathon course has been accurately measured per USATF certification standards and certified (FL19019TY) and will therefore be a Boston Qualifier for 2020 and beyond.