DUBLIN -- Sam Hartman threw for four touchdowns in his Notre Dame debut and the No. 13 Fighting Irish routed Navy 42-3 on Saturday in a season-opening victory in Ireland's capital.
Notre Dame (1-0) scored at will against the Midshipmen (0-1), improving to 3-0 all-time against Navy in Dublin games.
Hartman completed 19 of 23 passes for 266 yards.
"It starts up front. I had a lot of time to go through my reads and progressions, and felt comfortable," Hartman said.
Hartman connected with Jaden Greathouse on two scoring strikes, the second a 20-yard reception that made the score 35-0 early in the third quarter and kept the Irish offense perfect at that point -- scoring touchdowns in their first five possessions.