10U is for ages 9-10 Based on age as of January 1st of current year. This age division practices twice a week and play games on Saturday. The cost for this age is $135. 10U age division is the first age group where girls pitch. This is a fastpitch division. The girls are allowed 5 pitches to try to strike out the batter. If unable, the coach comes in and pitches the remaining stikes. The score is kept in this division and this is the first age group the girls can steal a base.