The consistent AUCKLAND REACTOR four-year-old Two Fiftyeight NZ posted his fifth success for the year at Saratoga Raceway, New York on Tuesday (November 3).
Starting from the pole, the gelding led from go to whoa to win in 1:55.6.
He has now won seven races and been four times placed in 25 starts in North America.
Two Fiftyeight is out of the Courage Under Fire mare Woman In Black (2:00.4), the dam of four winners including Miss You, who won a $67,500 Invitational in 1:50.4 at Hoosier Park, Indiana last weekend.
Chooz Reactor, a four-year-old daughter of AUCKLAND REACTOR, finishing strongly after a soft trip to win in 2:00 at Charlton on the same day as Two Fiftyeight won.
AUCKLAND REACTOR has sired 99 individual winners in Australia to date this season.