Timing 45,000 Runners in NYC
Now-a-days we're pretty spoiled with minute by minute and mile by mile race updates and results at road races and major marathons. You can track friends and family throughout their journey on a 26.2 mile race which is pretty amazing. But ever think about what goes into it to make it happen? Check out what goes on behind the scenes to get this system ready at one of the biggest marathons in the world.