The 20 year old Canadian dropped three shots over her last three holes on a day where she recorded 35 putts but she retains a one shots lead over Mo Martin with Japan’s Nasa Hatoka and Inbee Park just another shot back and tied for 3rd.
World number one, Shanshan Feng, is at 6 under and three from the lead.
Minjee Lee was unable to maintain her early tournament form and added a round of 73 today to her second round 75 to be in 42nd position and leading the Australians. Katherine Kirk and Rebecca Artis are 51st and Hannah Green is 64th after a shaky last nine holes where she dropped six shots in her last eight holes.
Henderson battled the tough afternoon conditions and a wayward putter after establishing a five shot lead early in her round before the late stumble. She had mixed emotions when questioned after her round and was frustrated by a horror day on the greens.
"You know, I hit it so well today that it kind of sucks to walk off the course 1-over when I know it could've been so much better.
"But on the plus side I'm still leading, which is always great going into the final round. Hopefully I can hit it just as well as I had the it today and hopefully make a few more putts.
"I mean, I would've liked it to be a lot more (the lead), but one shot is good. I know there are still a ton of really talented players really close behind me, so I'll have to go out and make a lot of birdies and hopefully it's my day."
Henderson is after her 6th LPGA Tour title and the manner in which she hit the ball today augurs well for tomorrow in what are expected to be windy conditions.
If she can make just a few of the putts she normally makes then another victory for the brilliant youngster is highly likely.
JORDAN SPIETH - CHICKEN WING AT IMPACT
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