The gray son of Exchange Rate stalked the pacesetter Yo Joe for the first three furlongs, then drove clear at the top of the stretch and finished well for jockey Jono Jones while in an easy drive for the wire. The winning time was :57.48.
Dicey Riley, the 4-5 favorite, finished second under Elvis Trujillo, 1 3/4 lengths in front of second choice Segal.
Trained by Gregory de Gannes for owners Bill and Vicki Poston, Southern Exchange debuted May 18 with a 2 1/4-length win over maidens while setting a Woodbine Polytrack record of :51.23 for the unusual 4 1/2-furlong distance.
Karl M. Hohensee bred Southern Exchange in Florida. Southern Exchange is out of Miss Madeleine, by Woodman, and sold for $32,000 in the Ocala Breeders' Sales Company 2007 Open Sale of Yearlings.
Sent off as the third choice, Southern Exchange paid $8.50, $3.80 and $2.20. Dicey Riley returned $2.70 and $2.10. Segal, ridden by James McAleney, was $2.30 to show.
Southern Exchange earned $87,444 for the win and has now banked $123,455 in his two starts.