Changes are afoot for the thousands of legs set to tackle the World's Fastest 5K.
The 10-time global medalist will make his debut at the "World's Fastest 5K" at the end of March.
She will square off against rival Sheri Piers.
Geleta Burka wins a tight women's race in 15:26.
Check out these photos of the winners from the World's Fastest 5K!
The two-time Olympian is ready for her second Carlsbad 5000 on Sunday.
The triathlon hopeful is on the road to recovery after a bad bike accident last year.
The 23-year-old Ethiopian will have his hands full on Sunday.