Chase Field, also known as The BOB (after its original name, Bank One Ballpark), is a stadium located in Phoenix, Arizona. It is across the street from the US Airways Center, used by the NBA’s Phoenix Suns. Chase Field’s main concern is with baseball, being home of Major League Baseball’s Arizona Diamondbacks. Starting in 2006, Chase Field will also be home to the annual Challenge at Chase, a baseball game between in-state and Pac-10 rivals Arizona State University and the University of Arizona.
The park began to be constructed in 1996, and was finished just before the Diamondbacks’ first season began, in 1998. It was only the second MLB stadium to have a retractable roof (after Toronto’s SkyDome; others are now in Houston, Milwaukee, and Seattle). It was also the first ballpark to feature natural grass in a retractable roof stadium. Chase Field also has a swimming pool, located in right center field, which is rented to patrons. The ballpark also features a dirt strip between home plate and the pitcher’s mound, one of only two current ballparks to do so (Comerica Park in Detroit is the other).









