Simplify the following text for a Grade 9 native English-speaking person.
Original: With the brand extension introduced in mid-2002 , the 30 entrants from 2003 to 2006 consisted of 15 wrestlers from both the Raw and SmackDown brands .
Simplified: With the brand extension introduced in mid-2002 , the 30 entrants from 2003 to 2006 had 15 wrestlers from both the RAW and SmackDown !