Myrtle Beach Marathon, in South Carolina is run in early March, so it’s a “before Spring” race. From the mbmarathon.com/ website:
“Plan your next racecation at the beach and join us for the 22nd running of the flattest and fastest races in South Carolina, the Myrtle Beach Marathon, Half Marathon, 5k, and Family Fun Run on March 2, 2019!
Is 26.2 More Than You Are After? The Myrtle Beach Marathon features two days of events, including a one-day Health and Wellness Expo, Half Marathon, 5k, and Family Fun Run in addition to the marathon event.
What Conditions Should You Expect? The Myrtle Beach Marathon is the perfect event to kick off your spring race season. Average temperatures in Myrtle Beach on race day are 40 degrees at the start and 62 degrees for the high temperature. The weather delivers spectacular racing conditions as well as comfortable conditions for spectators and families.”