Simplify the following text for a Grade 6 native English-speaking person.
Original: He also entered nine races ( and made seven starts ) in the Spanish-based World Series by Renault , with a best finish of seventh .
Simplified: He also entered nine races ( and made seven starts ) in the Spanish-based World Series by Renault ( WSR ) . Maldonado only started seven of the races , and his best finish was seventh place .