Jordan Hasay, also of the Oregon Project, was third in the women's race while running fastest debut marathon ever by a US woman.
Kiplagat's unofficial time was 2 hours, 21 minutes, 53 seconds and Chelimo finished 59 seconds behind at 2 hours, 22 minutes, 51 seconds.
Andrew Frates ran his first Boston Marathon to support his brother, who he named "Boston's Hero".
Kenyan runner Edna Kiplagat, the 2010 Utica Boilermaker Road Race victor whose time is still a course record for women, won the Boston Marathon today in her debut in the race. The 38-year-old, who had two of her five children - Wendy Jemutai, 9, and Carlos Kipkorir, 13 - waiting for her at the finish line, defeated runner-up Rose Chelino of Bahrain by 52 seconds.
Shadrack Biwott and Luke Paskedra finished fourth and ninth respectively. Rupp was 21 seconds back, and Suguru Osako of Japan placed third, 51 seconds behind the victor.
USA runner Galen Rupp finished second in the men's race in his first Boston Marathon.
This story will be updated.
Patrick Downes, who lost a leg in the Boston Marathon bombing, also greeted the Richard family, after he competed in the handcycle division of the 121st Boston Marathon on Monday.
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The Taliban, a much bigger insurgent group, is expected to soon announce the start of this year's fighting season. Fortunately, Khogiani said there are still no reports of any civilian casualties as a result of the bomb strike.
"I was pretty anxious about grabbing the bottles", Hasay said, "because I had never done that before".
The 37-year-old won the World Championship gold in 2011 and 2013 and has also won the New York, Los Angeles and London marathons, but had never run in Boston before Monday. "I certainly was not in the fitness I was going into Rio", he says. "I was feeling good, my training was good, but I knew I would be facing my colleagues who had run many times at Boston", said Kirui.
"I had hoped for more in terms of place and time", said Ward, "but I was pleased with my effort".
Her boyfriend, who was running with her, managed to shove the official out of the way and Ms Switzer kept running.
Incredibly, Kiplagat had to stop close to the finish line and run in the opposite direction after she realised she had accidentally grabbed a rival's water bottle from an aid station.
The performance marked a personal best and made him the highest-placed American in the men's race since Meb Keflezighi's win in 2014.
"I ran this race for her and I love her so much, and she will always be with me".
But the cheers of the crowd helped propel him on and he was eventually 'just delighted to come to that finish line'. "I had to finish the race no matter what". In 1985, Lisa Weidenbach (now Rainsberger) of Battle Creek, Michigan, became the last USA female to win Boston, crossing the finish line in a sluggish 2:34.06.
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