As most of you are probably aware the ITF have bought in a new rule change from Jan 1st 2012 regarding 10 and under competition and no longer the use of yellow balls, but the slower red, orange and green ones.
If you are a coach or if you are running a course, please be aware of this. If this information is relevant to anyone in your club please pass this on to them.
Please see the following link for more information.
http://www.lta.org.uk/News/2012/January/020112/Regular-tennis-ball-eliminated-from-10U-competition/