NORTH PLAINS, OREGON - Mhairi McKay shot a one-under 70 and has a four-shot lead after two rounds of the U-S Women's Open. <br>
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Juli Inkster, Hillary Lunke and Angela Stafford are tied for second. Donna Andrews is the only other golfer under par at one under 141. <br>
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Annika Sorenstam is eight shots off the lead. <br>
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Thirteen-year-old Michelle Wie posted her second straight 73 and is ten shots off the lead.
