The NYC Marathon drew 50,000 runners for its first year back at full capacity, CBS reported.
His fellow Kenyan, Sharon Lokedi, 28, won the women's race with a time of two hours, 23 minutes, and 23 seconds, the New York Post reported.
Reed Fischer, a professional runner present at Sunday's race, told the New York Post the weather may be the reason for do Nascimento's condition.
Weather in New York City was unseasonably warm, staying in the high 60s and low 70s, according to the New York Times report.
The race attracted over 50,000 runners for its first year back in full swing, CBS News reported.