The Lake County produced a performance for the ages to beat Dublin in Croke Park.
Westmeath are the champions of Leinster after overcoming Dublin in a dramatic contest in Croke Park.
Both sides held substantial leads in the second half before being pegged back.
Dublin then hit the front with just minutes left on the clock until Senan Baker saved Westmeath on minute 69.
Extra-time brought Westmeath to a new level, from the start of the additional 20 minute period, to the frenzied scene at the end, Mark McHugh's side were lightyears ahead of the 63 time provincial champions.
John Heslin, who spurned a chance to extend his side's lead in the final ten of normal time, struck a telling two pointer in the extra 20.
Dublin were a beaten docket in the last knockings of the memorable contest but Westmeath made sure of getting their hands of the Delaney Cup for just the second time in their history thanks to a Jack Duncan goal at the death.
The final score was 2-28 to 0-26.
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