Chemtai, a diminutive 27-year-old and a marathon novice, gained Israeli citizenship earlier this year through her coach, Dan Salpeter, after the two married in Kenya. They will be in Rio next month.
Britain's multiple world and Olympic champion Mo Farah ended a three-year absence from the track in style on Friday when he broke the world record for the one hour run at the Brussels Diamond League athletics meeting.
Kenya's Peres Jepchirchir won the Olympics women's marathon in Sapporo on Saturday, out-duelling compatriot Brigid Kosgei in the final minutes and claiming her country's second consecutive gold medal in the event. Kosgei took silver and Molly Seidel of the United States, competing in just her third marathon after moving up from shorter distances, claimed bronze.
Tokyo marathon which last year saw close to 38,000 amateur participants, was scaled back to just a few hundred professional athletes, with the public strongly discouraged from lining the route. In past years the event attracted more than 1 million roadside spectators.
