Park, who registered a final-round 6-under-par 65, outlasted Stafford to notch her second career victory after both golfers had finished 72 holes knotted at a tournament-record 26-under-par 258.
Stanford had posted a 7-under 64 in Round 4 at Grey Silo Golf Course.
Taking sole possession of third place at 23-under was Catriona Matthew (66).
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