What is the line in badminton singles?

1. On the sideline, singles are inside and doubles are outside.

2. Bottom line, the boundary between singles and doubles is the perimeter. The inside line is the back serve line of doubles (that is to say, doubles serve can't go out of this line, which is only useful at the moment of doubles serve)

3. The new rules do try to cancel the back serve line of doubles, but so far it has not been cancelled in all competitions, and other rules about this line have not changed.

Extended data:

1. Badminton court length13.40m, doubles width 6.10m, singles width 5.18m, doubles diagonal length =14.723m, singles diagonal length =14.33.

2. At present, chemical synthetic materials have been used as movable plastic venues in international competitions. In grass-roots competitions at all levels, when the above requirements cannot be met, competitions can also be held on cement or concrete ground. Whether using wooden floor or synthetic floor, it is necessary to ensure that athletes will not feel too slippery or too sticky during the competition and have certain elasticity.

3. The stadium must have clear boundaries. The width of the stadium line is 40mm, and the color of the line should be white, yellow or other easily recognizable colors. All site lines are part of the area it defines. In a comprehensive gymnasium, different venues often have various line interference. Use a color similar to the floor to draw the boundary that will interfere with the badminton court.

4. There shall be no obstacles (including two adjacent stadiums) within 2m above the stadium 12m and around the stadium. If these requirements cannot be met due to objective conditions, the organizer can negotiate with each team to make necessary amendments to the above requirements and make supplementary provisions, but it should try its best to meet the requirements of the rules for the stadium.

References:

Baidu encyclopedia: badminton court