This chapter develops an analysis of the performativity of Lopez Lomong in the very different ecological contexts within which he has become. Having endured multiple hardships and displacements in his life, Lomong demonstrates the importance of considering adaptability as a component of endurance. The chapter explicate the Lomong's story and experiences using Butler's performativity theory. Butler has offered critical cultural theorists another way in approaching the concern between individual agency and social constraint. In the becoming of Lopez Lomong, it explains his shifting performances throughout the extremely different dispositifs in which he becomes a part and performs his identity. It goes beyond labels, such as becoming a runner or being Buya or Sudanese or American, to our everyday choices and day-to-day lives. Lomong's life offers an understanding of endurance far beyond the simple understanding of him as an endurance athlete and an elite middle-distance runner.