Who can suspend play for weather or darkness, and what happens to the score?

Under Appendix VII of the 2026 ITF Rules of Tennis:

• The chair umpire may stop or suspend play at any time they decide it is necessary or appropriate.
• The referee may also stop or suspend play for darkness, weather or adverse court conditions.
• When play is suspended for darkness, it should be done at the end of a set, or after an even number of games in the set in progress.
• After a suspension, the score and the players' positions on court stand when the match resumes.