IOC members got the chance to quiz each of the bids in the Q&A sessions that followed their pitches; a total of 24 questions were asked.
PyeongChang bid chairman Yang Ho Cho was satisfied with the day's work.
"I am not in a position to judge whether we improved our position, but we have full confidence," he said. "I am not in a position to say we are better or worse – but we did our best.
"We stuck to our message, New Horizons."
On the contribution of Yu Na Kim, the Vancouver 2010 Olympic figure skating champion, he said: "I am delighted Yu Na attended our presentation. She is our ambassador, presenting our new horizons."
Korean foreign minister Sung Hwan Kim told reporters that he felt the bid had done "a great job".
"We addressed all the questions from IOC members so I am confident we will have good results from here," he said.