Simplify the following text for a Grade 8 native English-speaking person.
Original: He achieved his second career win on July 23 , in the Pennsylvania 500 also at Pocono Raceway becoming only the 2nd rookie in Nextel Cup history to sweep both races at a track during the same season ( Jimmie Johnson did so at Dover International Speedway in his rookie season in 2002 ) , both from the pole position .
Simplified: He got his second career win on July 23 , in the Pennsylvania 500 , also at Pocono Raceway .