If you're looking for a flat, PR-able course, San Antonio has it. However, be warned, the course is pretty boring. There's ample crowd support near the start, finish and by the Alamo, but otherwise it's few and far between. Most of the course runs along highways and back roads which are pretty boring. However, Rock'n'Roll races are always filled with fun runners and great music, so that helps to keep things entertaining. Rock'n'Roll is always on top of organization and aid stations, as well, and their swag is pretty on point.

Full review: https://fitfulfocus.com/rocknroll-san-antonio-half-marathon-race-recap/