Shopley, who took the lead with nine birdies without a bogey in the first round, maintained her No. 1 position with an interim total of 12-under 130.
Some players passed the second round to the next day without completing the second round due to sunset, but Shopley is expected to remain in the lead even after the round.
At 5 a.m. local time on the 17th, an employee of a tournament vendor was hit by a shuttle bus on a road near the golf course and died. As a result, the start of the second round was delayed by 1 hour and 20 minutes, and there was a player who did not finish the second round.
Shopley, who remained in the lead despite the chaotic situation, inflated expectations for his first major championship.
Shopley, who set a tie record for the minimum number of strokes in a major tournament in the first round, had four birdies by the 10th hole, but failed to reduce the number of strokes further after making a bogey at the 11th hole (par 3).
Collin Morikawa of the U.S. reduced his pars by six on the day, recording 11-under 131 overall, ranking second by a one-par gap. Sahis Shigala of the U.S., who is 10-under 132, ranks third.
World No. 1 Scottie Scheffler of the U.S., who is trying to win two consecutive major tournaments after last month's Masters, tied for fourth with an interim total of 9-under 133.
Scheffler was heading to the golf course for the game and was arrested for driving without following the instructions of a police officer who was controlling traffic on a busy road after the accident.
Even though she played after being released from the police, Scheffler showed a stable performance and ranked high.
Defending champion Brooks Koepka of the U.S. is tied for 11th with a 7-under 135.
Among Korean players, Kim Joo-hyung ranked in the top 20 with a 5-under 137.
Rory McIlroy (Northern Ireland) also performed the same as Kim Joo-hyung.
Kim Joo-hyung, who tied for fifth with 5 under par in the first round, made four birdies on the day, but failed to reduce the number of strokes by making two bogeys and one double bogey.
Ahn Byung-hoon finished the second round with a 4-under 138 and Kim Sung-hyun a 1-under 141.
Im Sung-jae shot 145 at 3-over par, and Kim Si-woo and Yang Yong-eun shot 147 at 5-over par, making it difficult to pass the cut as they were only in the top 100. The expected cut standard is 1 under par.
Tiger Woods of the U.S., the "Golf Emperor" who played in his third tournament this season, failed to make the cut, finishing at the bottom with a 7-over par of 149.
Woods withdrew from the second round due to cold symptoms at the Genesis Invitational in February, where he participated earlier, and was sluggish at 60th at the Masters last month. He failed to make the cut again this time, swallowing regret.
It is the first time in five years that Woods has missed the cut at the PGA Championship since 2019.