Dell Diamond, Baseball stadium in Round Rock, United States.

Dell Diamond is a baseball stadium in Round Rock with seating for approximately 8,700 spectators arranged around the field. The facility includes concession stands throughout the grounds and is designed to give fans clear views of the action on the field.

Nolan Ryan and his son Reid Ryan, part owners of the Express, first sought a stadium site in Austin but chose Round Rock instead. The city contributed $7.35 million to the $25 million facility, owns the ballpark and granted the Express a 38-year lease. Dell bought naming rights for $2.5 million over 15 years. The Express played their first home game on April 16, 2000, then as a Double-A affiliate.

The team is named for the Round Rock Express, and the stadium's Dell name comes from the local computer company that bought 15 years of naming rights for $2.5 million. The field has also served as a set: from September 2017 to March 2018 it was dressed as a post-apocalyptic landscape for Fear the Walking Dead, with vegetables planted and the grass killed with chemicals.

Dell Diamond sits on 85 acres of former farmland on the east side of Round Rock, northeast of Austin; the city owns the ballpark and the Express hold a 38-year lease. The University Interscholastic League state baseball tournament is held here, so check which event is scheduled before visiting.

The stadium hosted a perfect game, one of baseball's rarest events where a pitcher retired every opposing batter without allowing anyone to reach base. This achievement remains a memorable moment in local sports history.