Cpl. Keith Elliott, administration chief for company office, Tenant Activities Company, aboard Marine Corps Base Quantico, runs around Butler Stadium during his regular workout on Dec. 7. Spartan Races are the self-proclaimed “world’s leading obstacle race series.” - Cpl. Keith Elliott, administration chief for company office, Tenant Activities Company, aboard Marine Corps Base Quantico, runs around Butler Stadium during his regular workout on Dec. 7. Spartan Races are the self-proclaimed “world’s leading obstacle race series.”