Courts:
In addition to the (full sized) court described in Rule 1, the following court dimensions may be used for 10 and under tennis competition:
- A court, designated “red” for the purposes of 10 and under tennis competition, shall be a rectangle, between 36 feet (10.97 m) and 42 feet (12.80 m) long, and between 14 feet (4.27 m) and 20 feet (6.10 m) wide. The net shall be between 31.5 inches (0.800 m) and 33.0 inches (0.838m) high at the centre.
- A court, designated “orange”, shall be a rectangle, between 58 feet (17.68 m) and 60 feet (18.29 m) long, and between 20 feet (6.10 m) and 27 feet (8.23 m) wide. The net shall be between 31.5 inches (0.800 m) and 36.0 inches (0.914m) high at the centre.
Balls:
From January 2012, only the following ball types can be used in 10 and under tennis competition:
- A stage 3 (red) ball, which is recommended for play on a “red” court, by players aged up to 8 years, using a racket up to 23 inches (58.4 cm) long.
- A stage 2 (orange) ball, which is recommended for play on an “orange” court, by players aged 8 to 10 years, using a racket between 23 inches (58.4 cm) and 25 inches (63.5) cm long.
- A stage 1 (green) ball, which is recommended for play on a full sized court, by advanced players aged 9 to 10 years, using a racket between 25 inches (63.5 cm) and 26 inches (66.0 cm) long.
Note: From January 2012, other ball types described in Appendix I cannot be used in 10 and under tennis competition.
Specifications for stage 1, 2 and 3 balls:
All tests for rebound, mass, size and deformation shall be made in accordance with the regulations described in the current edition of ITF Approved Tennis Balls, Classified Surfaces & Recognised Courts.
Scoring methods:
For 10 and under tennis competition using stage 3 (red), stage 2 (orange) or stage 1 (green) balls, scoring methods specified in the Rules of Tennis (including those specified in Appendix IV) can be utilised, in addition to short duration scoring methods involving matches of one match tie-break, best of 3 tie-breaks/match tie-breaks or one set.