The temperature broke 100 degrees as practice began for the football season. A player at one school collapsed after a morning workout, and one at a second school collapsed after an evening practice.
Both of the teen-age boys died Tuesday, a day after their collapses on the first day of practice.
A Wichita hospital said the death of Matthew Blaufuss Whittredge, 15, of Towanda was heat-related. The cause of death for Robert Alexander Barrett, 17, of Wichita, had not been announced Wednesday.
Gary Musselman, executive director of the Kansas State High School Activities Association, said there are no statewide rules governing hot-weather practices. The association does provide coaches with information on heat disorders and how to prevent them. Monday, temperatures for the area reached 102 degrees.
Matthew, a sophomore, collapsed after practice Monday night. Robert, a 5-foot-10-inch, 278-pound aspiring offensive lineman, collapsed after a late-morning practice.