The court markings define the playing area of the surface and provide consistency with the Rules of Tennis and between courts.
The position of the court markings and net are checked using a distance-measuring device.
Test apparatus consists of:
- Distance-measuring device, calibrated to ± 0.05%, such as a laser distance meter or a steel tape.
Check the distance-measuring accuracy of the apparatus against a known standard prior to testing.
1. Using the calibrated device, measure each of the distances listed in table 5 (refer also to figure 7). Follow the same procedure on both sides of the net to complete the court.
2. Repeat the measurements in reverse order. Check any measurement for which the discrepancy between the two values exceeds half of the applicable tolerance.
Calculation of results
Calculate the mean of the two values measured for each distance. The criterion
values are listed in table 5. The tolerance for each test value (measured distance)
corresponds to 0.1% of the distance measured, with a minimum tolerance of 5 mm.
Note: 10 mm is added to the tolerance for measurements involving the net, due to the
thickness and movement of the net and the uncertainty in the measurement of the net
Refer to Table 5.
||Distance between doubles sidelines
||Doubles sidelines to singles sidelines
||Singles sideline to centre mark
||Distance between singles sidelines
||Singles sideline to centre serviceline
||Net to baseline
||Net to serviceline
||Distance between baselines
||Distance between servicelines
||Length of net
||Middle of net to net post
||Full-court diagonal (doubles)
|C to backstop
||Baseline to backstop
|C to sidestop
||Baseline to sidestop
Table 5. Recommended tolerances for dimensions of a tennis court.
Notes: Movement of grass during the application of court markings shall be taken into account when assessing the results.
a. 10 mm added to the tolerance for measurements involving the net.
b. N is measured from the centre of the net posts.
c. In cases where the position of X cannot be located precisely, for instance due to anchoring of the centre strap, use a reference point midway across the centre serviceline.
d. Applies to international competition. For recreational and club play, the recommended minimum distance is 5.48 m.
e. Applies to international competition. For recreational and club play, the recommended minimum distance is 3.05 m.
Figure 7. Plan view of half-court. All dimensions are given in metres.