An improved performance came in the second half but Micheál Donoghue's Dubs never looked like being reeled back in.
Westmeath lost their Walsh Cup third round game in the first half according to their manager.
The Lake County started proceedings poorly against Dublin in Kinnegad, trailing by 7 points at the break.
An improved performance came in the second half but Micheál Donoghue's Dubs never looked like being reeled back in.
Joe Fortune says despite the disappointment of the first half, the Walsh Cup has served its purpose to prepare his side:
The final score was 1-20 to 0-15.