Mansome made a bold uncovered move in the last half of the mile to overpower a field of top pacers and win the $20,000 winners-vver feature race at Plainridge Park on Monday afternoon.
Rock Diamonds N (Ron Cushing) led to the quarter where Lake Charles (Shawn Gray) pulled and brushed to the front. Positions remained unchanged until the five-eighths where Mansome (Kevin Switzer, Jr.) pulled first-over on the attack.
The two horses paced in tandem around the far turn and to the top of the lane where Mansome manned-up. He put away Lake Charles and then held off a late closing kick from Rock Diamonds N to win by 1-1/2 lengths in 1:51.2.