After missing out on the top of the podium last year, Kenyan runners cruised to victory by comfortable margins at the Boston Marathon as Geoffrey Kirui and Edna Kiplagat triumphed.
Kirui pulled away from American challenger Galen Rupp after Heartbreak Hill and Edna Kiplagat split from the women's field well before that, allowing both to cruise down Boylston Street with no need to look over their shoulders.
Their victories marked a sweet return to the top for Kenya after rival Ethiopia's 2016 sweep behind Lemi Berhanu Hayle and Atsede Baysa.
Kirui finished in two hours, nine minutes and 37 seconds in just his third competitive marathon after debuting at Rotterdam and Amsterdam last year.
He held off the more seasoned Rupp, who continues to impress at 26.2 miles after stepping up to the distance for last year's Olympics, while Japan's Suguru Osako was third.
Rupp (2:09:58) was bidding to become just the second American man to win in Boston in the last 34 years. The last was Meb Keflezighi in 2014; he raced in Boston for the final time on Monday, weeks before his 42nd birthday, and finished 13th.
Kiplagat dominated the women's race, breaking away around mile 19 and running the last several miles completely alone before crossing the finish line in a time of 2:21:52.
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.
Rose Chelimo of Bahrain was second in 2:22:51 and 25-year-old American Jordan Hasay took the final podium spot in her marathon debut with a time of 2:23:00.