Simplify the following text for a Grade 5 native English-speaking person.
Original: On 11 May 2009 , Karthikeyan finished sixth in his first ever Le Mans series race while driving for the Kolles Audi team in the second round of the 2009 championship held at the Spa-Francorchamps circuit in Belgium .
Simplified: On 11 May 2009 , Karthikeyan finished sixth in his first ever Le Mans series race .