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.
United States national beach soccer team
The field that beach soccer is played on is much smaller than a traditional football field but still rectangular in shape. It's generally 36 meters long and 27 meters wide with penalty areas on each end of the field within about 9 meters of the goal and is marked by yellow flags. The sand on the field is also required to be at least 40 centimeters deep as the players are required to be barefoot. Beach soccer goals are smaller than normal regulation soccer goals. They are 2.2 meters tall and 5.5 meters wide.