Tri-City switched parent clubs and signed a player development contract with the Los Angeles Dodgers.
The Dodgers ended their relationship with Tri-City following the 1968 season and moved their farm system to Medford, Oregon with the Rouge Valley club.
Tri-City then inked a player development contract with the San Diego Padres following their inaugural season as an expansion member of the National League.
[2] Professional baseball returned to the Tri-Cities in 2001 with relocation of the Portland Rockies, who were forced to move as the territory was awarded to a AAA level franchise.
Tri-City teams played home games at Sanders-Jacobs Field in Kennewick,[3] The ballpark was opened in 1950 with a seating capacity of 5,000 and a northeast alignment.
The stadium was demolished in 1975. Notable players with the Atoms included Doyle Alexander, Ron Cey, Joe Ferguson, and Ted Sizemore, the National League's Rookie of the Year in 1969.