Boston Marathon winner Meb Keflezighi says he lost his running shoe deal with Nike three years ago because of his age.
The 38-year-old distance runner signed a new shoe deal three years ago with Skechers, a footwear company more known for casual "lifestyle" shoes than hard-core running gear, after Nike dropped Keflezighi from its endorsement roster.
During an interview with CNBC on Tuesday, Keflezighi said his deal with Skechers has boosted his career and helped his running mechanics.
"I'm almost 39 years old and Nike thought I was probably too old," Keflezighi said on "Squawk on the Street." "And with the Skechers partnership, things have been going really well."
Keflezighi won Monday's marathon with a personal best of 2:08:37, becoming the first American male to win the Boston Marathon since 1983. He won the New York City marathon in 2009. According to NBC Sports, Keflezighi went seven months without a shoe contract before Skechers need a pitchman for its first-ever running shoe line.
A Nike spokeswoman declined to comment on Keflezighi's assertions.
—By CNBC's Jeff Morganteen