Conner Mantz Chicago Marathon Runner. When conner mantz crossed the finish line of the 2023 chicago marathon, one of the first things he did was turn around to look for clayton young. When the gun sounded at the 2022 chicago marathon, mantz embarked on his maiden voyage of 26.2 miles, crossing the starting line that would lead to his.

That raw speed — honed in the explosive shorter races — stands a runner in good stead. When conner mantz crossed the finish line of the 2023 chicago marathon, one of the first things he did was turn around to look for clayton young.