The former Olympic distance runner Jeff Galloway, who pioneered the run-walk-run method, at home in Sandy Springs, Ga., Dec. 5, 2025. Galloway, a seminal figure in American distance running as an Olympian, pioneering shoe-store owner, coach and author, died in Pensacola, Fla. on Feb. 25, 2026. He was 80. (Arthur Thompson/The New York Times) By JERÉ LONGMAN Jeff Galloway, a seminal figure in American distance running as an Olympian, bestselling author, coach, pioneering shoe-store owner and...