Double world champion Sammi Kinghorn finished fifth on her marathon debut in Chicago as she made the step up from sprint distances.
USA star Tatyana McFadden won in 1:39:14, with Kinghorn - who has set her sights on racing over the distance at the 2018 Commonwealth Games - clocking a time of 1:43:52
Kinghorn won the 100m and 200m at the World Para Athletics Championships in July before making the massive leap in distance, because the shorter events are not part of the Commonwealth programme.
The 21-year-old's time in Chicago has put her comfortably inside the Commonwealth Games qualification mark of 2:05.
Speaking before her appearance in Chicago, Kinghorn said the opportunity to represent Scotland at the Commonwealth Games was her main inspiration for the move.
"Glasgow 2014 was the best experience of my life and to pull on that Scotland vest again would be incredible," she said.
“In sport you strive so hard to wear the vest – you want to represent your country. Yes, it’s not in my select events and I’m probably not going to win it in the same way I might do in the 100m – it’s going to be completely different for me – but I’m going to wear that vest with pride."