(CNN) -- Just 11 weeks after giving birth for the second time, Catriona Matthew is in prime position to become the first Scottish golfer to win the Women's British Open.
Veteran Catriona Matthew is hoping to make it third time lucky after previous disappointments.
Matthew, three weeks away from her 40th birthday, takes a three-stroke lead into Sunday's final round at Royal Lytham.
She moved clear on Saturday after carding a one-under-par 71 to move to four-under 212 after 54 holes, having shared the halfway lead with Giulia Sergas of Italy.
Matthew will be paired with second-placed Christina Kim for the final 18 holes after the American matched her score.
Matthew made a poor start to the day with bogeys at the second and third holes, but bounced back with birdies at the fifth, 10th and 13th to banish memories of the third round at St Andrews two years ago when she slumped to an 80 after being second at halfway.
She also led the tournament with a round to go at Sunningdale in 2001, but ended up finishing third.
Defending champion Jiyai Shin moved up from 17th place to joint third with Japan's Ai Miyazato after carding the day's best round, a 68.
Miyazato, winner of last week's Evian Masters in France, kept her title hopes alive with a 70.
Sergas crashed with a 78 to be seven shots off the lead on 219, a stroke ahead of a group including Korea's Se Ri Pak (73) former world No. 1 Karrie Webb of Australia (72) and first-round leader Angela Stanford of the United States (74).
U.S. Solheim Cup hopeful Michelle Wie was back on 223 after a 74, while world No. 1 Lorena Ochoa was another shot back following a 72.
Meanwhile, England's Steve Webster has been handed a one-shot lead going into the last day of the men's European Tour's Moravia Silesia Open.
Spain's former Ryder Cup player Ignacio Garrido double-bogeyed the final hole of his third round, having gone out in front after a hat-trick of birdies.
Webster regained top spot with a three-under-par 69, while Garrido finished with the same score to be tied for second with England's Graeme Storm (70) on 10-under 206.
Englishman Sam Little (70) and Northern Ireland's Gareth Maybin (68) were fourth on nine-under.