“I think it’s probably the toughest hole on the course,” she said afterwards.
“The tee shot is hard to hit the fairway and then you’ve got a three-wood into a very strong wind. Anything that’s missing the target is going to be exaggerated.
“So I pushed it and got a pretty unlucky lie. It wasn’t too thick around there apart from where I was, so I couldn’t really do much with that.”
Asked about her second round as a whole after a tough opening day, she added: “I’d certainly take it [two under par] now, but not when I was standing on the 16th tee.
“I’ve just got to try to play well over the weekend. The leaderboard is pretty packed so I can move up a bit.”
World number two Jeeno Thitikul suffered a similar fate to Woad on the par-three 15th, failing to escape from a greenside bunker at the first attempt and eventually carding a triple-bogey six.
That dropped the Thai player back from four under to one under.