Big Data BBQ

Heat map of soc­cer field: the soc­cer field is divided into twenty 5.35m seg­ments. The num­bers rep­re­sent the total num­ber of passes from that sec­tion. Col­ors are cor­re­lated with num­bers of passes (green — yel­low — red are low to high).
From Ratio­nal Foot­ball blog.

Soc­cer field heat map