WASHINGTON (AFP)—Defending champion Nasa Hataoka of Japan leads a field of returning moms, major winners and a teen prodigy when the LPGA Dana Open tees off Thursday.

Hataoka fired a career-low 61 in the opening round last year at Highland Meadows in Sylvania, Ohio, and won an event trimmed to 54 holes by bad weather.

"This course is very challenging," Hataoka said. "Fairways are narrow, greens are pretty small, so it's really important to hit a good tee shot. I was able to do that last year. I think that's the key."

Hataoka won her sixth career LPGA title in April at the Los Angeles Open and hopes the event's move from the heat of July to the relative September cool will help her repeat bid.

"The win in LA definitely gave me a boost of confidence, especially on a very difficult golf course," Hataoka said.

"Recently I haven't been in contention, but I feel like fall is my season. So I will try my best, and maybe two wins is a good number."

Spain's Azahara Munoz and American Paula Creamer will make their returns to LPGA play after maternity breaks. Creamer gave birth to Hilton eight months ago while baby Lucas arrived to Munoz in February.

"It has been amazing to be back," Munoz said. "I was a bit nervous coming to the course on Monday actually. Feels like it has been forever. I've enjoyed being home so much."

Lucas has been a helpful new member of the team so far.

"He's incredible. He's such a good little boy," Munoz said. "He has the best temperament, so he literally never cries. He's so easygoing. So it's been super enjoyable."