So Yeon Ryu has birdied all five par-5 holes in a five-under 67 to take the second round lead on Friday in the Meijer LPGA Classic.
The sixth-ranked South Korean star played her final nine holes in five-under 31 to top the leaderboard at 13-under 131, and it came after making three bogeys in a five-hole stretch on her first nine.
"I really like with my putting stroke right now," Ryu said. "No matter I made it or not, I feel like my stroke is really great and my rhythm's really great," she said.
"I really want to keep this tempo and rhythm. And I just need to keep working on some tee shots."
Sandra Gal and Sakura Yokomine each shot 64 to reach 12 under. Caroline Masson (66) was 11 under, and Australian Su Oh (68), Lee-Anne Pace (67) and Anna Nordqvist followed at 10 under.
Michelle Wie and New Zealander Lydia Ko were eight under, each shooting 67 and in 12th place.
"You have to hit in the fairways here," Wie said. "The rough can be a little penalising."