How I Met Your Mother Season 6 Episode 4 (How I Met Your Mother s06e04) with title “Subway Wars” aired on Monday, October 11th 2010 at 08:00 pm via CBS Network.
Here is summary for How I Met Your Mother Season 6 Episode 4 :

When the gang is making fun of Robin because they don’t think she is a real New Yorker, she challenges them to a race, first one to get to a downtown restaurant and catches a glimpse of Woody Allen wins.