Two Breeders’ Cup Challenge Series qualifiers are among the four graded stakes taking place on an action-packed Saturday card at Aqueduct.

Monster two-year-old filly Echo Zulu kept her unbeaten record intact when obliterating Sunday’s Frizette S. (G1) at Belmont Park by 7 1/4 lengths.

Both a “Win and You’re In” for the Breeders’ Cup Juvenile Fillies (G1) and a points race toward the Kentucky Oaks (G1), the $400,000 Frizette (G1) anchors a trio of graded stakes at Belmont Park on Sunday.