The 10-time global medalist is looking forward to racing in the inaugural 3.1-mile event.
The 39-year-old used his blistering kick in the final 150 meters to claim victory.
Bernard Lagat finishes second in 13:19, breaking American 5K road record.
Some of the top entrants in this weekend's Carlsbad 5000 met up with some local HS runners on Friday.
Marc Davis' mark of 13:24 has stood since 1996.
The two have finished close together in several races in recent years.
Changes are afoot for the thousands of legs set to tackle the World's Fastest 5K.
The 39-year-old kicked his way to his fourth U.S. indoor title.
The 10-time global medalist will make his debut at the "World's Fastest 5K" at the end of March.