Rumbling Cloud ($19.80) held off Kentucky shipper Carson's Legacy, the 1-2 favorite, to land his first stakes in the $151,300 Woodstock.
Rumbling Cloud set slow fractions under Emma Wilson, as Carson's Legacy assumed a stalking position in the six-furlong event.
Carson's Legacy drew even with Rumbling Cloud at the eighth pole, but Rumbling Cloud edged away in deep stretch to win by three-quarters of a length, in a time of 1:11.46.
"I handicapped the race, and it looked like we might be the lone speed," said Wilson. "He showed tremendous tenacity down the lane."