Tennis polo
The sport is played on a grass field between 80 and 100 yards long and 50 to 65 yards wide. The goal area is a semicircular line with an 11-yard radius and the penalty mark at 13 yards from the goal. An experimental rule has a second semicircular line on the field with a 17-yard radius. Generally, a field for gridiron football or soccer can be used.
Fistball
In outdoor fistball, the field size is 50 m long x (25 x 20 m per half-field) by 20 m wide. In indoor fistball, the field size is 40 m long (20 x 20 m per half-field) by 20 m wide. Since the indoor field size corresponds with the regular size of a handball field, the existing external lines are usually used. The service line is 3 m away from the center line. The server's stationery foot (for standing serves) or first landing foot (for jumping serves) must be completely behind this line when serving. The boundary lines belong to the field, i.e. when the ball touches the line, this is not an error and play will continue.