@Kai Grasmück, you get points for every 200 market points, so they buy gold and cash to send contracts and buy out of barn to fill contracts to acquire 10-20 million market points during player tournament. Finishing 2 tournaments at 20 million points will give you over 200,000 farm contest points. Then you add weekend collection, where they buy and run rose seeds and seaweed on their fields at get more points. It is the points for your score that sets them apart.
Did you check the levels of those farms. They are much bigger than yours thus can geneate more points. Coop points count too