Vanspor will deny İstanbulspor the -1.5 on Sunday, August 23, 2026. Vanspor will feed off their home setting at the Spor Toto Akhisar Belediye Stadı and the memory of beating İstanbulspor 3-1 on December 21, 2025. İstanbulspor will arrive with just one point from two 1. Lig matches and a season led…