The Meadows introduced two significant technological advancements in 1983: Call-A-Bet and the Meadows Racing Network (MRN). In 2009, the Pennsylvania Historical and Museum Commission erected a historical marker at The Meadows to note Miller's historic importance. Miller's imprint still exists on the track today, with The Meadows most prestigious race bearing his name (the Delvin Miller Adios Pace for the Orchids), and a statue of his famous sire Adios located at the track's entrance. The Washington Trotting Association was purchased in February 1973 by a group including famous trainer/driver Delvin Miller.
The track opened on June 28, 1963, and was operated by the Washington Trotting Association. In November 1962, ground was broken for the first parimutuel horse-racing track in Western Pennsylvania.