Sports How do they get the grass to color contrast on sporting fields?

[muttonchops]

You know like on the MCG when you see the 2 shades of green on the ground in perfectly straight lines.

 

[hamG]

It is the ancient and mystic art of mowing the grass in different directions.

 

[BILC]

Just mow it in different directions, pretty simple to do

 

[rdhopkins2]

You really need a decent cylinder rather than rotary mower with a roller to do it well.
Google how to stripe a lawn for an idea.

 

[sandeano]

The key is to align your mower at the beginning of each row and then sight something (a tree, shrub, marker of some description) and never take your eyes off it as you mow the strip. Do not attempt to follow the edge of the previous row.