Towa Pharmaceutical Ractab Dome

Main Arena uses

• In summer the arena has a swimming pool, 50 m by 25.5 m, where the depth can be changed due to a movable floor. The diving pool, 25 m by 25 m, with three diving platforms and five springboards, also has a movable floor.
• In winter the arena has ice skating rinks. The main rink is 60 m by 30 m, and a sub rink is 18 m by 30 m.
• In autumn and spring the arena is transformed to a gymnasium where sporting competitions, exhibitions and conferences are held.

  Sporting events

• In 2005 the final competition of six international events, the 2005 NHK Trophy was held at the dome for the ISU Grand Prix of Figure Skating for Ladies, Men, Pairs and Ice Dancing.
• Some games of the 2003 Women's Volleyball World Cup were held at the dome.
• Some games of the national tennis matches, Davis Cup have been held at the dome.-cityscale
• Japan Figure Skating Championships 2009–2010, 2007–2008, 2001–2002.