Coaching can be allowed; continuous play is still compulsory.

Which rules this page applies

The baseline here is the ITF Rules of Tennis 2026, principally Rule 21 (when to serve and receive), Rule 29 (continuous play), Rule 30 and Appendix IV (coaching), and Rule 31 and Appendix III (player-analysis technology). The ITF is the international rule-making authority for tennis.

The 2026 ITF amendment notice does not change any of those provisions. Competition codes can still decide whether to permit coaching, where coaches sit and how breaches are penalised. This page therefore labels the 2026 Grand Slam and ITF World Tennis Tour procedures rather than presenting them as universal tennis law.

Legal coaching does not stop the clock

A message can satisfy Rule 30 and still leave the player late under Rule 29. Conversely, a player can be within 25 seconds but receive advice at a prohibited time or in a prohibited form. Officials should therefore ask two independent questions: was the communication allowed? and was play resumed in time?

How to resolve a coaching-and-time dispute

1. Name the event, governing body and current competition regulations.
2. Check whether that sanctioning body permits off-court coaching for this match.
3. Locate the coach and identify the form and timing of the communication.
4. Decide whether a point was being played; if so, coaching was not permitted.
5. Run the Rule 29 timing test separately from the end of the previous point to the next first service.
6. Apply that competition's coaching code, time-violation ladder or delay-of-game code—not a penalty borrowed from another tour.

What “coaching” means

The 2026 ITF rule defines coaching as advice or instruction of any kind and by any means to a player. Tactical words and planned hand signals are straightforward examples. The label depends on the substance of the communication, not on whether a coach calls it encouragement.

Rule 30 gives the sanctioning body a choice to permit off-court coaching; it does not require it. The event regulations and officials decide whether a particular message falls inside the adopted conditions.

When permitted off-court coaching is legal

• Timing: between points, at changes of ends, at set breaks and at any other non-point time the sanctioning body permits.
• Verbal advice: only when coach and player are at the same end of the court.
• Hand signals: at any time when coaching is otherwise permitted.
• Manner: off-court coaching must be brief and discreet, except during a break in play.

Appendix IV treats medical time-outs, toilet and change-of-attire breaks, weather or light stoppages and other temporary match suspensions as breaks in play. That removes the “brief” condition, but only if the sanctioning body permits coaching at that break and its own regulations do not impose a narrower rule.

No coaching while the point is being played

Rule 30's hard boundary is the playing of a point. A sanctioning body may expand the permitted non-point opportunities, but it cannot turn live-point coaching into ordinary Appendix IV coaching. A shout or signal intended as tactical instruction during the rally is therefore prohibited even at an event that allows off-court coaching.

Whether the same conduct also interrupts or hinders an opponent, and the resulting sanction, must be decided under the applicable competition code. “Illegal coaching” does not by itself specify one universal replay, point loss or code penalty.

Team events are a distinct category

Under ITF Rule 30, on-court coaching is permitted only in team events where a team captain sits on court, and only at the times allowed by the sanctioning body. In all other competitions, on-court coaching is not permitted. Davis Cup, Billie Jean King Cup and other team formats can add their own procedures, so the ordinary off-court rule should not be used as a substitute for the appointed event regulations.

Recorded data is not automatically available

ITF Rule 31 and Appendix III allow approved player-analysis technology to record or store information during a match. A player may access it only in accordance with Rule 30: the sanctioning body must permit that access, and it must occur at a time when coaching is permitted. A phone, tablet or wearable is not made usable merely because it contains match data.

The permission dates from 1 January 2025

After a vote at the 2024 ITF Annual General Meeting, Rule 30 was changed with effect from 1 January 2025 so sanctioning bodies could permit off-court coaching. That is why “coaching is always banned” is now wrong, but “coaching is always allowed” is equally wrong: the competition must adopt the permission.

The timing limits and their endpoints

• Between ordinary points — 25 seconds: from the moment one point finishes until the first service is struck for the next point.
• Change of ends — 90 seconds: measured over the same point-finished to first-service interval.
• Set break — 120 seconds: again ending when the next first service is struck.
• No-rest changes: after the first game of each set and during a tie-break, players change ends and play remains continuous.

An event organiser may apply for ITF approval to extend the 90-second changeover and 120-second set-break limits. Rule 29 does not give organisers the same general permission to lengthen the 25 seconds between ordinary points.

The service must be struck, not merely started

The legal endpoint is the racket striking the first service. Beginning a bounce routine or service motion before the count expires is not enough if contact comes late. After a fault, the second service must follow without delay under the professional codes discussed below; a fresh 25-second recovery period does not begin.

The 2026 ITF Duties and Procedures for Officials directs the chair umpire to start the stopwatch when the ball goes out of play or when the player is ordered to play. It provides no advance warning before 25 seconds expires. A visible countdown may help spectators, but the rule test remains the official elapsed-time decision.

The receiver does not own all 25 seconds

ITF Rule 21 says the server must wait until the receiver is ready, but the receiver must play to the server's reasonable pace and be ready within a reasonable time of the server being ready. The 2026 ITF officiating procedure therefore permits a time violation before 25 seconds if the receiver's actions are delaying that reasonable pace. A receiver who tries to return the service is treated as ready.

Outside the player's control is a narrow exception

Rule 29 allows reasonable extra time when clothing, footwear or necessary equipment other than the racket is broken or needs replacement for reasons outside the player's control. It gives no extra recovery time for ordinary loss of condition. A treatable medical condition may instead qualify for a three-minute medical time-out, while announced toilet, change-of-attire or rest-break procedures are governed separately.

The exclusion of the racket matters: broken strings do not create a general Rule 29 equipment extension. Event medical, heat, weather and suspension procedures may lawfully produce different pauses, but they are not additions to every between-point interval.

Coaching conditions at the four majors

The 2026 Official Grand Slam Rule Book, Code Article III.L, permits coaching at all four Grand Slam tournaments from designated coaches' seats. Verbal coaching is limited to a few words or short phrases when player and coach are at the same end; hand signals are allowed; and neither form may interrupt play or hinder the opponent.

A player may approach or converse with a coach during an opponent's medical time-out, toilet/change-of-attire break or another chair-approved break while the players remain on court. The coach may not speak to the player when that player has left court. Misuse is a Code violation, governed by the cumulative Point Penalty Schedule: warning, point penalty, then game penalty; after the third Code violation, a later offence may lead to default.

Time violations use a separate ladder

Under Grand Slam Code Article III.J, a player's first time violation as server or receiver is a warning. Each later time violation is a fault when that player is serving or a point penalty when that player is receiving. The prior warning follows the player across those two roles.

A delay caused by a medical condition, refusal to play or failure to return within the allowed time is instead a Delay of Game Code violation under the Point Penalty Schedule. That distinction explains why a deliberate refusal to resume is not necessarily processed as one more ordinary clock warning.

A chair umpire changes the coaching answer

The 2026 ITF World Tennis Tour Regulations, Code Article IV.K, permit off-court coaching only where a chair umpire is present and subject to the WTT coaching procedures. On-court coaching remains prohibited, including during the warm-up. An unumpired WTT match therefore does not acquire coaching permission merely because ITF Rule 30 makes permission possible in principle.

WTT Article IV.D uses the same first time-warning, later server-fault or receiver-point ladder, while expressly allowing the chair umpire or supervisor to decide that an extension is necessary or that no penalty should be imposed. These WTT provisions should not be projected onto an unaffiliated club, junior, college or national match.

A hand signal arrives between points

Situation: after a point ends, a coach in the stands briefly signals for the player to attack the next return.

Ruling: the signal is legal only if the sanctioning body has permitted off-court coaching for that match and the signal satisfies its location rules. Appendix IV allows hand signals at a permitted coaching time, but Rule 30 does not itself supply the event permission. The player must still make the next first-service contact within the Rule 29 limit.

A tactical shout comes during the rally

Situation: from a designated seat, a coach shouts a tactical instruction after the service has put the ball in play.

Ruling: it is prohibited coaching. ITF Rule 30 allows no coaching during the playing of a point, and Grand Slam Code Article III.L does not override that boundary. The player is penalised at the current step of the Grand Slam Code schedule, which depends on earlier Code violations in the match; it is not automatically “just a warning.”

A receiver turns away at 20 seconds

Situation: the server is ready at 18 seconds. The receiver deliberately walks to the towel and remains turned away even though the full 25 seconds has not expired.

Ruling: the chair umpire may assess a time violation before 25 seconds because the receiver is delaying the server's reasonable pace. If it is that player's first time violation, the Grand Slam penalty is a time-violation warning. The decisive fact is receiver delay, not the public clock reaching zero.

A later server violation occurs

Situation: a player was warned earlier for delaying as receiver. Later, while serving, the player fails to strike the first service within 25 seconds.

Ruling: this is a subsequent time violation and is recorded as a fault under Grand Slam Code Article III.J. The warning is attached to the player, not reset when the player changes from receiver to server.

A shoe fails but a racket string snaps

Situation: in one match a shoe sole separates unexpectedly; in another a racket string breaks.

Ruling: Rule 29(b) can allow reasonable extra time for the footwear problem because it was outside the player's control. The same clause expressly excludes the racket, so it does not grant extra time for the broken string. The event code may address the practical replacement, but the two equipment problems are not equivalent under Rule 29.

A coach signals in an unumpired match

Situation: at an ITF World Tennis Tour match without a chair umpire, a coach gives a brief hand signal between points.

Ruling: off-court coaching is not permitted in that match. WTT Code Article IV.K makes the presence of a chair umpire a condition of its coaching permission. The fact that the signal's form and timing could satisfy ITF Appendix IV does not remove the WTT-specific eligibility condition.

Four shortcuts that give the wrong ruling

• “Coaching is legal now”: ITF Rule 30 lets the sanctioning body permit it; the event must actually do so.
• “The player only has to start serving by zero”: Rule 29 requires the first service to be struck within the maximum time.
• “The receiver always gets 25 seconds”: the receiver must follow the server's reasonable pace and can violate the rule earlier.
• “Every violation follows warning, point, game”: ordinary time violations and Code violations can have different ladders, and those ladders belong to the competition.

Controlling and supplementary sources

• International Tennis Federation, Rules of Tennis 2026 — Rules 21 and 29–31; Appendices III and IV.
• International Tennis Federation, 2026 Amendments to the Rules of Tennis and Beach Tennis — checked for later changes; none affects Rules 21 or 29–31.
• International Tennis Federation, Duties and Procedures for Officials 2026 — Section Q, continuous play and delay-of-game timing procedure.
• Grand Slam Tennis, 2026 Official Grand Slam Rule Book — Tournament Regulations Article I.K and Code Article III.J, III.L and III.S.
• International Tennis Federation, 2026 ITF World Tennis Tour Regulations, version 12 December 2025 — Code Article IV.D, IV.K and IV.R.
• International Tennis Federation, “Off-court coaching to be allowed from 2025”, 17 October 2024 — adoption history and 1 January 2025 effective date.

Source note: this page was checked on 28 August 2026 against the ITF 2026 rule book, its published 2026 amendment notice and the named 2026 competition codes. National associations, tours, team competitions, junior bodies and individual events may publish additional regulations; those appointed rules control their own matches.