The subject of pitch marks may seem like an inconsequential one to non-golfers, but it’s something those within the golf community think about often.

When a ball lands on a green, it makes a small indentation — a “pitch mark.” If you don’t fix a pitch mark like this…

Please take the time to repair a pitchmark PROPERLY on every green – the attached picture shows you how. pic.twitter.com/tlVk5DEd0z — Langlands Golf Club (@LanglandsGolf) April 20, 2014

The nice green surface won’t remain nice and green. It’ll turn brown and bumpy. Frustratingly, people leave them anyway.

So, in an effort to raise awareness about this unfortunate practice and how it affects the everyday lives of the grounds crews who work at golf courses, Lawrence Country Club Superintendent Adam Breitenfeldt shared these pictures.

Trying to show a visual of unrepaired/unhealed ballmarks. #16 green Par 4. The final count was astonishing. #LCC🌾#ialwaysfixmineplusone pic.twitter.com/FLdzMhCGeQ — Adam Breitenfeldt (@AdamBfelt) July 10, 2017

Others chimed in with similar illustrations.

Stopped counting after 520 balls pic.twitter.com/DUhmI0Pdml — Idris Evans (@Idris_Evans) July 10, 2017

Done similar 2weeks ago, 510 un or poorly repaired pitch marks on half a green. No respect pic.twitter.com/jwfSuo7b4L — Shane George (@LSCsuper) July 10, 2017

A good point well made. Fix your pitch marks, people. Be considerate.