The Wii MotionPlus-enhanced title is the third best-selling Wii title in a four day span in Japan.
In the four days that Wii Sports Resort has been out in Japan, it has sold 353,827 copies.
The numbers put the title in a somewhat distant third behind Mario Kart Wii (608,000 copies) and Super Smash Bros. Brawl (816,000 copies).
Despite the impressive numbers, neither Mario Kart Wii nor Super Smash Bros. Brawl are among the top three best-selling Wii titles in Japan. Those honors belong to Wii Fit, which has managed to sell over 3 million copies, Wii Sports, which was sold separately in Japan, and Wii Play.
Wii Sports Resort will make its American debut on July 26.