The Dome hosted the opening ceremonies to the 2007 FIS Nordic World Ski Championships on February 22 and hosted the closing ceremonies of the championships on March 4. It also made history as being the first venue where both indoor and nighttime skiing events took place for the first time on a world championship or Winter Olympic Games level with competitions in the cross country skiing sprints (men's and women's individual, and men's and women's team) and the cross country portion of the 7.5 km sprint event in the nordic combined. In order to generate snow, the stadium used its turf conversion hovering system to facilitate the snow making process for the skiing competitions. The opening ceremony featured Maki Ohguro, a local artist from Sapporo, Japanese drum demonstrations and other performances paying tributes to local customs and traditions. For the championships, seating capacity was reduced to 30,000.
In late 2009, renovations with the possibility of increasing the capacity up to 53,796 were finished. These renovations also included space for more food outlets, an extra video screen, two extra changing rooms (to accommodate matches in the NFL International Series pre-season matches, which have up to 75 players per team) and further media area as part of new office buildings attached to the stadium. As part of these renovations, the surface area of the arena itself was decreased to allow for more seating.
The Dome is interesting in that it switches between two entirely different surfaces. Baseball games are played on an artificial turf field, while football games are held on a grass pitch that slides into and out of the stadium as needed. Some other stadiums that feature sliding pitches include the, GelreDome in the Netherlands, Veltins-Arena in Germany and University of Phoenix Stadium in the United States; however, unlike these three facilities, the Sapporo Dome has a fixed roof.
Conversion from baseball to football begins with the storage of the baseball field's artificial turf. Once finished, a set of lower bowl bleachers rotate from an angled position for baseball to a parallel position. A set of main bowl seats on one end of the dome then retracts, and the football pitch is slid into the stadium. The lower bowl is then rotated 90 degrees. Conversion from football to baseball occurs in reverse. Due to the retraction of seats, the Stadium has a capacity of only 40,476 for baseball games.