The OneMain Financial 200 is a NASCAR Xfinity Series race that typically takes place at Dover International Speedway, also known as the "Monster Mile," in Dover, Delaware. The race covers a distance of 200 miles, which translates to 200 laps on the one-mile concrete oval track. OneMain Financial, a financial services company, is the title sponsor of the event. This race is known for its challenging track conditions and competitive racing, making it a notable event in the Xfinity Series schedule.