Simplify the following text for a Grade 10 native English-speaking person.
Original: He won the Delhi Derby in January 2010 , and was expected to win at the Kingfisher Derby held in Bangalore on July 11 , 2010 riding tote favorite ` Sun Kingdom ' .
Simplified: Having won the Delhi Derby in January 2010 , Narredu was to ride tote favorite ` Sun Kingdom ' at Kingfisher Derby on 11th July 2010 .