At Evian Resort Golf Club overlooking Lake Geneva in France, 22-year-old Anannarukarn shot a bogey-free 65 to reach six strokes under par.

Noh, 19, holed out from 126 yards for an eagle on the par-four first hole, and her round featured five additional birdies and just the one bogey.

The youthful duo lead by one shot, with five players just behind on five under.

Lee Jeong-eun of South Korea - a past major winner often accompany by the digit 6 on scoreboards - is among the players tied for third place.

Japan's Ayaka Furue, American Lauren Stephenson, Thai teenager Atthaya Thitikul and Emily Kristine Pedersen from Denmark also shot 66 today.

Pedersen's round included two eagles, while Thitikul was another player to go bogey-free.

Thai two-time major champion Ariya Jutanugarn is among those on four under.

Pauline Roussin-Bouchard holds the distinction of being both the best-placed French player and the best-placed amateur, following a three-under 68 which featured three birdies in the final six holes.

New Zealand's Lydia Ko - who won one of her two majors here in 2015 - is also three under.

Olympic champion Park Inbee is on level par and Ko Jin-young, the defending Evian Championship champion from 2019 after last year's event was cancelled because of the coronavirus pandemic, is one over.

Both are South Korean.

Nelly Korda of the United States, the new world number one, carded five bogeys in a three-over 74 and is nine shots off the leaders.