Answer
Bolshunov has won a total of nine Olympic medals, including three golds, four silvers, and two bronzes. His gold medals came in the men's 30 km skiathlon, the men's 50 km mass start, and the men's team relay. His silver medals came in the men's 15 km + 15 km skiathlon, the men's 4 × 10 km relay, the men's team sprint, and the men's 15 km freestyle.