Japan's female curlers suffered an 8-4 defeat at the hands of Switzerland on Wednesday, but booked a spot in the semifinals with a 5-4 record at the Pyeongchang Winter Olympics after the United States fell to Sweden in their round-robin match.

Japan's men, however, failed to advance to the playoff stage after conceding their game against South Korea 10-4 and completing the round-robin stage with four wins and five losses.

It was the first time a Japanese men's or women's team advanced to the final four at the Winter Olympics. In Friday's semifinals, Japan will face South Korea, which it beat 7-5 to hand the host its only round-robin defeat.