Kenyan-born athletes, who have switched allegiances to other nations, are set to compete against athletes representing Kenya at the upcoming Tokyo World Championships from September 13-21, creating anticipated high-stakes matchups.

• A major showdown is expected between Kenya's Faith Cherotich and Bahrain's Winfred Yavi in the 3000m steeplechase, following Cherotich's recent victories over Yavi in the Oslo and Doha Diamond League meets.
• Other notable Kenyan-born competitors include US marathoner Betsy Saina and US 1500m runner Jonah Koech, who recently qualified for the championships after a surprising win at the USATF Track and Field Championships.
• This trend of Kenyan-born athletes representing other countries has a storied history, including Saaeed Shaheen (formerly Stephen Cherono) for Qatar and Wilson Kipketer for Denmark.