Complex sentence: Montreal is the most famed race as it is paired with the NASCAR Nationwide Series, an eventful last lap ended with Scott Steckly on his roof and J.R. Fitzpatrick picking up his first win of the season.
Split into simpler sentences: Montreal is the most famed race, as it is paired with the NASCAR Nationwide Series. An eventful last lap ended with Scott Steckly on his roof and J.R. Fitzpatrick picking up his first win of the season.