Oisín Ó Gailín became just the second Donegal man to run a sub four minute mile.
The Finn Valley AC man ran an incredible 3:59.07 at the John Thomas Terrier Classic at Boston University.
The Dreenan athlete broke a University of Wyoming record last February in Colorado.
Ó Gailín also broke a Finn Valley AC 1500m record in 2022 at the Fresno State Invitational where he ran 3:45.30
