11 US races typically run in March
March is a transition month: early spring races in warmer regions overlap with the tail end of winter racing elsewhere. Course-day temperatures vary widely by region this month, worth checking each race's typical conditions individually.
Early March · Southeast
Lafayette, LA
Event listed as: Full Marathon
Event listed as: Marathon
Event: Bend Marathon
Event: Catalina Island Marathon | Verified 8/26/26: 4,310 ft gain confirmed (template was correct here). Field size corrected DOWN from template guess of 800 to real ~410-437 finishers. Not a BQ course.
Renowned for giant finisher medals
Stadium to the Stars (Dodger to Century City)
Fast coastal resort course
Runs along the scenic Silverado Trail
Event: One City Marathon
American Tobacco Trail; high BQ percentage
Fast coastal North Carolina qualifier