Hinako Shibuno (22 = Suntory), leader, circled all 9 holes in the first half with 37 with 1 birdie and 2 bogies, dropped one and entered the second half with a total of 6 under. The difference with 2nd place is 3 strokes, which is the same as at the beginning.

The bogey started with 3 putts on the first par 4. The second par 4 also put the second shot into the bunker on the left in front of the green, but when the third shot moved 2 meters and stopped, he smiled in relief. On the fifth par 5, he took the first birdie by hitting the third shot 1 meter from the pin. Still, it was the seventh par 4, and the par 2m putt and second bogey were eliminated. The throwing distance was correct until the second round, but he was suffering from a heavy green due to the rain the day before.

When the final group of Shibuno and others finished the first half, four people, including amateur Lin Grant (Sweden) in the same group, were in second place with a total of 3 under.