text: For sport fields, there should just be one area (closed Way) per field.  There is no way to directly add the lines of a pitch to OSM, and I don't think they belong in OSM.  What you have here is known as "tagging for the renderer" and not considered good practice.  Looking at the data, you would expect that you each leisure=pitch rectangle represents a separate field, which happens to be inside of a soccer field.  However, in actuality there is just one soccer field here and should only have one object in OSM: a rectangle with leisure=pitch and sport=soccer.
  
  If you want an example of a renderer of OSM data that displays typical field markings based on sport, then see:
  http://wiki.openstreetmap.org/wiki/Talk:Tag:leisure%3Dpitch#Rendering_of_pitches_according_to_sport
  