“Wise beyond his years” is one phrase used to describe Teen Mazda Challenge competitor Matthew Dirks, and it fits -- there are times during the phone call that it’s easy to forget the voice on the other end of the line is just a 15-year-old young man who recently completed...

Mazda Motorsports' factory driver Tristan Nunez, 20, gets it done on- and off-track with his foundation.Tristan's father, Juan Nunez, was a professional tennis player. He coached Spaniard Arantxa Sánchez Vicario to a French open win in 1989, and was also Chris Evert and Gabriela Sabatini's coach. So it seemed only...