Badminton singles service rules are simple once you understand how the score determines the service court. Unlike doubles, there are no partners or service rotations to track. The server changes sides based on their score, and the player who wins the rally gets the point and serves the next rally.
The main confusion usually comes down to a few questions like: Which side do you serve from? Where should the serve land? Is the back line in? What happens when the server wins or loses a rally? This guide explains these singles-specific service rules, with examples to make the service sequence easy to follow.
How Does Service Work in Badminton Singles?
In singles, every rally begins with a diagonal serve. The server’s score determines which service court they use. An even score means the right service court, while an odd score means the left service court. This applies throughout the game, including at 0–0.
The player who wins the rally scores a point. If the server wins, they continue serving, but their new score determines the service court for the next rally. If the receiver wins, they score a point and become the new server.
For example, if Player A starts at 0–0, the serve comes from the right court. If Player A wins the rally, the score becomes 1–0, so the next serve comes from the left. If Player A wins again, the score becomes 2–0, and the next serve comes from the right again.
The pattern continues throughout the game:
Even score → Right service court
Odd score → Left service court
There is no separate service rotation between players in singles. The player serving is always determined by who won the previous rally.
Badminton Singles Service Court Rules
The singles service court is narrower than the doubles service court because the outer sidelines are not used for singles. The server and receiver stand in diagonally opposite service courts, divided by the centre line.
For a singles serve to be valid, the shuttle must travel diagonally across the net and land within the singles service court. The serve must clear the short service line and stay within the inner sidelines. Unlike doubles, the back boundary line is used for singles service, so a shuttle landing on the baseline is in.
This is an important distinction because the doubles long service line does not determine the back limit of a singles serve.
Singles Service Court at a Glance
| Server’s Score | Service Court | Target Area |
| Even | Right | Diagonally opposite right service court |
| Odd | Left | Diagonally opposite left service court |
The service court should not be confused with the boundaries used during the rest of the rally. Once the serve has been returned, the shuttle can land anywhere within the singles court, including the full length up to the back boundary.
Read More: Badminton Doubles Service Rules
Right vs Left Service Court in Singles
The easiest way to determine your service court is to look at your own score, not your opponent’s. If your score is 0, 2, 4, 6, 8, and so on, serve from the right. If your score is 1, 3, 5, 7, 9, and so on, serve from the left.
For example:
- 0–0: Server uses the right service court.
- 1–0: Server uses the left service court.
- 2–0: Server uses the right service court.
- 3–2: If the server has 3 points, the serve comes from the left.
- 8–7: If the server has 8 points, the serve comes from the right.
The opponent’s score does not determine where you serve from. Only the server’s score matters. This rule also means that a player who wins several rallies in a row will keep changing service courts. The player does not stay on the same side after every point.
Where Should the Singles Serve Land?
A singles serve must be delivered into the diagonally opposite service court. The shuttle must pass over the net and, if not intercepted, land on or within the boundaries of that service court. In singles, the service court is narrower and extends to the back boundary line, so a serve landing on the back boundary line is in.
This gives the singles service area a distinctive shape. It is narrower than the doubles service area but extends farther back during service.
A serve is therefore out if it:
- Lands outside the inner sideline.
- Lands on or before the short service line.
- Lands beyond the back boundary line.
- Goes into the wrong service court.
Remember that lines are in. If the shuttle touches the correct boundary line, it is considered in. This is particularly important for serves that land close to the sideline or baseline.
Who Serves After Winning a Rally?
The winner of every rally gets the point. If the server wins, they continue serving. Their increased score then determines which service court they use for the next rally.
For example, Player A is serving at 4–3. Since Player A has an even score, the serve comes from the right service court. If Player A wins the rally, the score becomes 5–3, and Player A serves again from the left.
If Player B wins the rally instead, the score becomes 4–4. Player B becomes the new server and serves from the right service court, because Player B’s score is now even.
So the sequence is straightforward:
- Server wins → scores a point → continues serving from the opposite service court.
- Receiver wins → scores a point → becomes the new server.
This is the most important service sequence to understand in singles.
Badminton Singles Service Examples
The score-based service rule becomes easier to remember when you see it across several rallies.
Example 1: Server Wins Consecutive Rallies
Player A starts serving at 0–0.
- 0–0: Right service court
- Player A wins → 1–0: Left service court
- Player A wins → 2–0: Right service court
- Player A wins → 3–0: Left service court
Player A keeps serving because they have won every rally. The service court changes after each point because their score changes between even and odd numbers.
Example 2: Receiver Wins the Rally
Player A is serving at 3–2. Because Player A’s score is 3, the serve comes from the left.
Player B wins the rally, making the score 3–3. Player B now becomes the server. Since Player B’s score is 3, Player B serves from the left service court.
The important point is that the new server uses their own score to determine the service court.
Singles Service Rules for the Server and Receiver
Before the serve, the server and receiver must stand in their respective diagonally opposite service courts. Their positions are determined by the server’s score and the correct diagonal service area.
The server must remain stationary with both feet in contact with the court until the shuttle is struck. The receiver must also have both feet in contact with the court at the time of service. Players must not touch the boundary lines of their service courts before the shuttle is struck.
Once the serve has been delivered, these service positions no longer restrict the players. Both players can move freely within the singles court during the rally.
The broader requirements for a legal serve, including the 1.15-metre service height and service action, are covered in the Badminton Service Rules guide.
Common Singles Service Faults
Many singles service faults happen because players confuse the service court with the boundaries used during normal play.
A serve can be faulted if the server uses the wrong service court, serves to the wrong diagonal court, or the shuttle lands outside the singles service area. For example, a shuttle landing beyond the baseline is out, while one touching the baseline is in.
Players can also commit a fault by violating the general service requirements, such as incorrect foot placement or an illegal service action. These rules apply across both singles and doubles.
Singles vs Doubles Service Rules
The basic service rules are similar in both formats, but the court dimensions and service rotation differ. Here’s a quick comparison of the key differences between singles and doubles service rules.
| Service Rule | Singles | Doubles |
| Service court width | Narrower, using the inner sidelines | Wider, using the outer sidelines |
| Service court length | Extends to the back boundary line | Ends at the doubles long service line |
| Service court | Right for even score, left for odd score | Right for even score, left for odd score |
| Service rotation | No partner rotation | Players follow a fixed service order |
| Who serves next? | The player who wins the rally | The side that wins the rally gets the next serve |
| Server’s position | Changes based on the server’s score | Changes based on the serving side’s score and rotation |
| Number of players | One player per side | Two players per side |
Common Mistakes in Singles Service
- Forgetting to Check Your Own Score: The server’s score determines the service court. Looking only at the overall score or your opponent’s score can lead to serving from the wrong side.
- Using Doubles Service Boundaries: The outer sidelines and doubles long service line do not define the singles service area. Singles uses the inner sidelines and the back boundary line for service.
- Staying on the Same Side After Scoring: Winning a rally changes the server’s score, which can change the service court. If an even score becomes odd, the next serve moves from the right to the left, and vice versa.
- Assuming the Receiver Becomes Server Only After a Lost Serve: In rally scoring, every rally determines who serves next. If the receiver wins the rally, they immediately gain the point and become the server.
Conclusion
Badminton singles service rules mainly come down to three things: your score determines your service court, the serve must land in the correct diagonal service court, and the winner of the rally serves next. The right service court is used for even scores, while the left is used for odd scores.
Knowing the singles service boundaries is equally important. The inner sidelines define the width, the short service line marks the front of the service area, and the back boundary line is in for singles service. Once these rules become familiar, keeping track of service position and rotation becomes much easier.
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Frequently Asked Questions
In singles, the server serves diagonally into the opponent’s service court. An even score means serving from the right court, while an odd score means serving from the left. The player who wins the rally gets the point and serves the next rally.
Serve from the right service court when your score is even and from the left service court when your score is odd.
Yes. The back boundary line is in for singles service. A serve landing on the baseline is considered in, while one landing beyond it is out.
The inner sideline is in for singles, while the outer doubles sideline is out. The inner sideline also applies to singles service.
A singles serve must land in the diagonally opposite service court, within the inner sidelines and up to the back boundary line. Unlike doubles, the singles service court does not use the outer sidelines or the doubles long service line. The back boundary line is therefore the rear limit for a singles serve.
You score a point and continue serving. Your new score determines the service court for the next serve. An even score means serving from the right service court, while an odd score means serving from the left.
No. The doubles long service line does not determine the back limit for a singles serve. Singles service extends to the back boundary line.
