Originally named Edwards Field, it was renamed after Clint Evans, the Cal head coach from 1930–54. The stadium was renovated in 1992 at a cost of $275,000, paid for by the donations of UC alumni. Construction was done by RNT Landscaping, a San Leandro landscaping company. The turf at Evans Diamond is natural grass, and the infield dirt is a combination of crushed cinder and the traditional clay. The outfield wall is 320 feet from home plate in the corners, 365 feet in the power alleys, and 395 feet in center field. In the right field corner are the batting cages and pitching machines, covered by a roof ; the bullpen is outside of the roof, closer to the warning track. In the left field corner is the other bullpen, without batting cages. Both bullpens are separated from the field of play by fences. The Jackie Jensen press box lies directly behind home plate, above the last row of stands. Beyond the left field wall is Bancroft Way, the southern border of the UC campus. Beyond the right field wall is the concrete grandstand for the track stadium. The baseball field has an unorthodox orientation, with the catcher and batter facing southwest, into the mid-afternoon sun.
Future
Evans Diamond is in need of major renovations because the stadium is no longer considered up to the standards needed to host NCAA tournament games. This was a problem as recently as 2011, when the Golden Bears had to host their 2011 Super Regional vs. Dallas Baptist University at Stephen Schott Stadium in Santa Clara. One of the Cal Baseball Foundation's primary goals is to see improvements at Evans Diamond including the addition of field lights so the stadium can host night baseball games. In the near future, the facility will also have to be able to host large television crews to accommodate the newly created Pac-12 Network. Before California baseball's alumni game on October 21, 2012, it was announced that Evans Diamond will receive lights and a new video and scoreboard by the first conference games in 2013. For the first time in the venue's history, Evans Diamond will be able to host night games during the 2013 season. While the actual stadium has in the past been considered inadequate by NCAA standards, the baseball program does have relatively new locker rooms and training facilities inside neighboring Haas Pavilion.
