His career reached its 'pinnacle' when he won the championship.
Winning the championship was the 'pinnacle of' his career.
She stands at the 'pinnacle of' the fashion industry.
(..) ...for thousands of years. We sacked Rome. Loaded trade ships with plague rats. Burned London to the ground. Every time a civilization reaches the pinnacle of its decadence... ...we return to restore the balance. Gotham isn't beyond saving. Give me more time. There are good people here. (..)2005 Batman Begins