I don't see his times as any indication of progression as a senior. His FL qualifying time of 15:21 is a little disconcerting. He is certainly beatable by a guy like Sean McGorty, who just went 14:28.
Even Cheserek's coach isn't overly optimistic about a lock: “He’s been training pretty good. He hasn’t had super duper workouts or done huge mileage, but he’s had good, solid workouts. There are no gimme’s out there.”