Yankee Co-Ed set a track and stakes record in winning the second division of the $230,000 Lady Baltimore Stakes for 2-year-old pacing fillies in 1:54 4/5 last night at Rosecroft Raceway. In the final division Miss Easy won her 11th straight race in a effortless 1:55 4/5.

The old mark was 1:55 3/5, held by Yankee Goddess. So Cozy set the stakes record of 1:56 4/5 at Freestate Raceway in 1987.

Yankee Co-Ed, trained and driven by local favorite Bib Roberts, seemed beaten by race favorite Laugh Line at the three-quarter pole but Yankee Co-Ed rallied to win by one length.

"The handiness of my filly may have been the difference," said Roberts. "She's big and strong but you can drive her with two fingers."

Miss Easy, bet down to a nickle on the dollar, did not disappoint her backers in the final Lady Baltimore as John Campbell gently guided her to a 1 1/2-length victory over Good Girls Don't. "I think she's the best filly ever," said part-owner Lou Guida about Miss Easy.

R M Gee, with Campbell driving, won the first division in 1:57 3/5.