Kenseth's No.17 Roush Fenway Racing Ford crossed the finish line 0.127 seconds ahead of Denny Hamlin. The victory was his second of the season and 23rd of his Busch career.
Edwards' third-place finish gave him a 403-point lead over Dave Blaney in the standings.
The next race in the series is next Saturday at Phoenix.
Ohio bar shooting arrested, charged with murder
LGBT community has 'bullied the American people': Bachmann