In the prelims heats of the 4x200 meter freestyle relay at the 2020 Summer Olympics in Tokyo, Japan, Kibler swam with relay teammates Patrick Callan, Blake Pieroni, and Andrew Seliskar to finish fifth overall and advance the relay to the final. Following his performance in the prelims, he was selected to swim on the relay in the final along with Zach Apple, Kieran Smith, and Townley Haas, which made him the only relay member to swim in both the prelims and final of the event. In the final of the event, Kibler helped the relay finish fourth overall.