Sarah Sellers ran the 26.2 mile (42km) course in a period of two hours 44 minutes four seconds, completing minutes behind Linden.
Monday's race was just the second marathon that the 26-year-old medical caretaker has run. The to begin with, in Utah, she won to fit the bill for the esteemed Boston occasion.
She was a sharp olympic style events rival in school, however is an obscure to the expert running world. Onlookers via web-based networking media could just discover represents a blue grass music star of a similar name.
Dealers ran the race without supports or a specialist. She needs to wake up at 04:00 to press in preparing a little while later anaesthesiology shifts at Banner Health Center in Arizona.
The medical attendant revealed to US media that she just agreed to accept Monday's occasion since her more youthful sibling was taking an interest.
Subsequent to paying the $185 (£130) extra charge, she leaves the east drift with $75,000 (£52,000) in prize cash.
Her better half, Blake Sellers, told the Boston Globe that his significant other didn't know she had come next until the point that she had finished the mammoth run.
"I didn't know it was a probability," the sprinter up told the daily paper. "I was endeavoring to ask authorities what put I was in. I had no clue when I crossed the end goal