Callahan worked out a ground-saving trip for the Dylan Davis trainee before finding late room in the lane. She used a :28.2 closing quarter to prevail by three-quarters of a length in 1:53.2 while giving Callahan the milestone win.
The resident of Queenstown, Maryland has already potted more than $2 million in earnings this season, while his lifetime total is quickly closing in on $37 million.
In other Monday action at Dover Downs, Inittowinafortune, Bags Of Stars and K Js Caroline came through with victories in their respective $20,000 divisions of the Delaware Standardbred Breeders Fund (DSBF) for three-year-old filly pacers.
Inittowinafortune arguably won the toughest of the three divisions holding off a strong challenge from race-favourite Blush With Pride in 1:54.3. Daryl Bier, who owns the Cams Fortune-Cuzurinittowinit filly with Charley Dombeck, scored her ninth victory in 14 starts with two seconds and two thirds raising her earnings to $157,177. Women Rule, with Sean Bier, closed well to finish third.
Bags Of Stars, a homebred daughter of Roddys Bags Again-CB Star trained by Ben Stafford, recorded her third-straight victory of the year easily tuning back six rivals in 1:55. Ben Stafford, Jr. drove the winner to her fifth lifetime victory. Miss Emily D (Corey Callahan) finished second with Friendsnheartbeat (Eddie Davis, Jr.) third.
Scott Woogen’s K Js Caroline turned in the fastest DSBF clocking scoring a 1:53.2 lifetime record for Vic Kirby. Jim Coughlin conditions the Roddys Bags Again-Dillgaff homebred who won for the seventh time in her 15-race career. Amelia Bluededlia (Ron Pierce) was runner-up with First By A Length (Corey Callahan) the show finisher.
The top eight point-getters after two prelim legs return next Monday for the $100,000 final.
(With files from Dover Downs)