Following Thursdays round of 65 which saw her two strokes behind leader Kris Tchetter, Sorenstam opened her second round in dramatic fashion, carding birdies over her first eight holes and going out in 8-under-par 28.
As she began Fridays round at the Moon Valley Country Club playing the back nine first, Sorenstam then proceeded to rattle off four more birdies in a row at the 1st, 2nd, 3rd and 4th holes (her 10th through 13th) to move to 19-under-par, nine shots ahead of the competition.
She then dropped a birdie at the par-5 8th to bring her to 20-under for the tournament and put her on pace for the magical 59.
Sorenstam closed her round on the par-4 9th with a two-putt for par, barely missing the 12-foot birdie attempt for a 58.
Fifty-nine, however, was hers.
Click here for Annika's record-setting scorecard!
Sorenstam now becomes the first-ever woman to break 60. The record on the LPGA Tour prior to her 59 on Friday was 61, which, incidentally, Sorenstam held from the first round of the 1999 Sara Lee Classic, along with 61s from Se Ri Pak and Karrie Webb.
While Sorenstams run of eight birdies on the front nine stands as a current record for the year 2001, it falls just one shy of the all-time record on the LPGA Tour. In the 1999 Philips Invitational, Beth Daniel made nine consecutive birdies on her way to a 62.
Sorenstam's performance comes on the heels of a big victory at last week's event in Tucson, when rounds of 65-68-67-65 (-23) saw her win by a full six shots over Michelle McGann, Laura Diaz, Dottie Pepper and Pak.
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