Darrel HcHargue and Mint Leaf pressured favored River Fame, ridden by Laffit Pincay, and finally wore her down Wednesday to win the $40,800 The Swingtime by a neck at Hollywood Park.
A driving Loucoum, ridden by Eric St. Martin, finished another half-length back in the 1 1/16-mile turf race for 3-year-old fillies.
Mint Leaf ran the distance in 1:42 3/5 to defeat six rivals and pick up the $22,800 winner's purse.
Sent off the third choice, Mint Leaf paid $11, $4.40 and $3. River Fame, the even-money favorite, paid $3 and $2.40, and Loucoum returned $3.20 to show.
Mint Leaf trailed River Fame throughout most of the race but never let her get more than a half-length in front.
Loucoum saved gound most of the race and responded in the drive but could not catch the leaders.