Measurement

Description

Criterion (m)

Tolerance(mm)

Range

Xa, Xb

Middle of net to singles sidelines

4.115

5

4.110-4.120

Xn

Middle of net to singles sticks

5.029

5

5.024-5.034

XA, XB

Middle of net to doubles sidelines

5.486

5

5.481-5.491

XN

Middle of net to net posts

6.401

6

6.395-6.407

AC, BD

Half court diagonal (doubles)

16.177

16

6.161-16.193

AD, XJ, BC

Net to baseline

11.887

12

11.875-11.899

DC

Distance between doubles sidelines

10.973

11

10.962-10.984

Dd, Cc

Doubles sidelines to singles sidelines

1.372

5

1.367-1.377

dJ

Singles sideline to centre mark

4.115

5

4.110-4.120

aG, XH, bF

Net to serviceline

6.401

6

6.395-6.407

HG, HF

Centre serviceline to singles sidelines

4.115

5

4.110-4.120

ac, bd

Half court diagonal (singles)

14.458

14

14.444-14.472

1.

N and n are measured from the centre of the net posts/singles sticks.

2.

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 service line.

3.

All other measurements should be made to the outside edge of lines.

4.