305 Half Marathon city
Run like a local

Formerly 13.1 Miami Beach & 5K, the NEW 305 Half Marathon & 5K provides runners fun, scenic course along Miami and Miami Beach’s beautiful waterways. Once runners cross the finish, the celebration continues on South Beach at the post-race beach party!


The 305 Half Marathon & 5K will take place on Sunday, March 7, 2021.
> Race weekend schedule

305 Half Marathon

The main event of race weekend.
> Everything you need to know for race day 


3.1 miles of sandy, Miami beaches with breathtaking ocean views.
> Race our 5K 

Florida Storm Series Logo

Choose the Category 3, 4 & 5 Challenge or go all out with the Perfect Storm Challenge. More miles = bigger bling!
> Earn big bling in Florida