Why use a SmartNet for 10-and-under players?
Average
Heights
ATP/WTA
182cm
Average
Heights
10 year old
138cm
200cm
Average
Heights
8 year old
128cm
180cm
Average
Heights
6 year old
116cm
160cm
140cm
120cm
100cm
80cm
60cm
40cm
20cm
Yellow ball
Bounce 135-147cm
Net height 91,4cm
Green ball
Bounce 120-135cm
New net height 69cm
Orange ball
Bounce 105-120cm
New net height 64cm
Red ball
Bounce 85-105cm
New net height 58cm
Source: World Health Organization 2007, rebound height from ITF Rules of Tennis 2011 and ATP/WTA Dec 5, 2011