GUIDES · BETSLIP DOCTOR
Can a tennis server stand behind the baseline between the singles and doubles sidelines?
Under the ITF 2026 Rules of Tennis (English), a server may use the strip behind the baseline between the singles and doubles sidelines in doubles, but not in singles. This is a limit on where the server stands. A serve must still meet the separate requirements for its path and landing, and a Rule 18 foot fault is treated as a service fault under Rule 19. Check the rules adopted for the particular competition.
For Tennis viewers and players checking a foot-fault call in singles or doubles · Updated
The permitted strip depends on singles or doubles
For this specific part of the serving position, compare the sidelines used for the match. The area behind the baseline but outside the singles sidelines is not available to a singles server; the same strip between the singles and doubles sidelines is available to a doubles server under the 2026 ITF text.
That narrow distinction does not explain every way a server can commit a foot fault. It answers only whether this lateral strip is permitted.
Server position and serve landing are separate questions
A legal standing position does not make a serve good by itself. The ball still has to satisfy the service rules, including landing in the correct service court. Conversely, a serve’s landing does not change whether the server stood in an allowed place.
Rule 19 classifies a Rule 18 breach as a service fault. Let calls and the ordinary first- or second-serve outcome concern the delivery, not permission to stand in this strip.
Check the rules that govern the event
This explanation follows the ITF 2026 Rules of Tennis in English. The official documents identify that edition, but they do not establish an adoption date for every competition. Check the event’s governing rules before applying the distinction to a specific match.
A fictional singles point and doubles point
Hypothetically, a singles server stands behind the baseline in the strip between the singles and doubles sidelines. That position is not permitted for singles under the cited 2026 text. In a separate made-up doubles point, a server uses the same strip behind the baseline; that position is permitted in doubles. These examples address where each server stands, not where either serve lands.
Related questions
Does the doubles allowance let the serve land outside the service court?
No. It concerns the server’s position behind the baseline. The ball must still meet the separate service-court requirements.