"What is the best way to layout and paint the center circle and PK arcs on a soccer field?" Ken, PA soccer club
I would pre-measure the radius of the arc and circle for a cord/rope/string
and use a nail or turf stake to hold one end at the center of the circle or arc. Then scribe the arc or circle using a aerosol spray can putting down a dashed line. Then over-stripe the dash line that you created earlier using your striping equipment. Some field markers
will allow you to tie the opposite end string to the unit so you can walk and stripe the arc/circle at the same time while keeping the string tight.
Tru Mark's Soccer Field Layout Tool
has been an excellent tool for personnel to quickly and accurately layout a soccer field of any size. Read more about how to use and request this Microsoft Excel spreadsheet template.