 That station, named then as now "Wonderland Station" remains very active to this day.The greyhound "grading" system, instituted in 1946, provided a method for more accurate handicapping, resulting in increased handle.Greyhound would start in Grade "M" (maiden, no wins) though some tracks would employ a Grade "E", Wonderland did not, dogs winning a maiden race being placed in Grade D. If successful, dogs could progress possibly improving to Grade AA, or move up and down the grading system at various levels until retiring or being dropped as uncompetitive.