Matt Richtman is 1st American man to win Los Angeles Marathon in 31 years

Matt Richtman won the 40th annual Los Angeles Marathon on Sunday, becoming the first American man to take the title in 31 years.

​ Matt Richtman won the 40th annual Los Angeles Marathon on Sunday, becoming the first American man to take the title in 31 years. Read More Breaking News, Latest News and Videos | CNN