The white numbers serve two main purposes:
- to help fans and players visualize the field
- to quickly name any yard line
Every yard line has a name, like the 50-yd line, located at the middle of the field dividing it equally in two. Notice that these numbers count from 50 towards 1 in both directions. There is no such thing as the 51-yd line or the 99-yd line. Instead, there are duplicates of every yard line and only one 50-yd line.
Small Directional Arrows
So why do the numbers count from 50? Well, do you see those small directional arrows next to each number? they are pointed in opposite directions showing the distance to the closest goal line.