Tiz Miz Sue remained undefeated in three starts over Delaware Park’s main track by scoring a 4 ¼-length victory in Wednesday’s $50,350 Polly’s Jet Stakes for 3-year-old fillies. Making her first start since winning a second-level optional claimer on Aug. 26, Tiz Miz Sue ($15.20) ran 1 1/16 miles on a wet-fast track in 1:44.05, giving leading jockey Anna Napravnik the 995th victory of her career. Trained by Steve Hobby, Tiz Miz Sue has now won 4 of 13 overall. Her previous best finish in a stakes was second in the Grade 3 Arlington-Washington Lassie 13 months ago. Quiet Giant finished second, two lengths in front of Ms Vanenzza, the 4-5 favorite