Approximately how long was the estimated adult length of this medium-sized theropod?

Around 2 meters (approximately 6.6 feet)

Estimates concerning the overall dimensions of Xenotarsosaurus place it firmly among the smaller to medium-sized theropods present during the Late Cretaceous period. Current scientific estimates suggest that an adult individual reached a length hovering around 2.0 meters, which is equivalent to approximately 6.6 feet. This places it considerably smaller than the gigantic predators of the era, such as Tyrannosaurus, implying that its role in the ecosystem likely involved hunting smaller prey items rather than confronting very large dinosaurs. For comparison, this length is noted to be roughly the size of a modern adult male saltwater crocodile from snout to tail tip, though Xenotarsosaurus was bipedal and much lighter in build.