Arizona improved to 21-8 overall and 2-1 in the Pac-10 with the win, while USC fell to an even 13-13 on the season and 1-2 in the conference with the loss.
The Wildcats erupted for 13 runs in the final three innings to blow open what was a one-run game.
Arizona starter Richie Gardner (6-0) picked up his team-leading sixth win of the season with eight solid innings on the mound. The junior right-hander surrendered just two runs, while striking out five and walking two.
Freshman Brad Boyer followed up his game-winning exploits from Saturday with a 4 for 5, three RBI-day at the plate on Sunday. The first-year Wildcat finished the series 7 for 14 with four RBIs and two runs scored.
Junior Brian Anderson, who saw his 26-game hitting streak come to an end on Saturday, tallied three hits on Sunday, including a single, a triple and his team-leading eighth home run of the season. Freshman Nick Hundley was a perfect 4 for 4 with four runs scored in the win.
Junior Moises Duran and freshman Jordan Brown also hit home runs in the game, the sixth and second home runs of the season for each, respectively.
Arizona will travel to Los Angeles next weekend for a three-game series at Jackie Robinson Stadium with UCLA. First pitch for the series opener on Friday is set for 7 p.m.
Day Two - Mar. 22, 2003
Freshman Brad Boyer overcame a torn finger nail suffered in pre-game warm ups and a seventh inning error to help Arizona (20-9, 1-1 Pac-10) rally to a 6-5 win over USC (13-12, 1-1 Pac-10) at Frank Sancet Field on Saturday.
Boyer's third hit of the game drove in pinch runner Dallas Haught with the game- winning run in the bottom of the ninth to help Arizona stave off a second straight loss to the Trojans.
Sophomore Jeff Van Houten led off the ninth with an infield single to first base. Haught came on to pinch run for the outfielder and promptly stole second to place him in scoring position. After a Nick Hundley strike out, sophomore John Hardy advanced Haught to third on a ground ball that was misplayed by USC's Jon Brewster for the Trojans' second error of the game.
Hardy stole second to put runners on second and third with one out for Boyer. The first-year Wildcats lofted reliever Jordan Olsen's 2-1 offering to right-center against a drawn-in outfield for a single to plate Haught and even Arizona's Pac-10 record at 1-1.
Wildcat reliever Brian Pemble (1-0) picked up his first win of the season with an inning of work. The southpaw struck out one and walked one in his second appearance of the week.
Arizona jumped out to a 5-1 led through the first six innings, but saw USC roar back to tie the score with a four-run seventh inning off of reliever Kevin Guyette. Guyette was the victim of hard luck as all four runs crossed the plate unearned, thanks to a pair of Wildcat errors.
Day One - Mar. 21, 2003
USC freshman Bobby Paschal and reliever Michael Cooper combined to limit Arizona to a season-low three hits and freshman Jeff Clement hit a pair of home runs, as the two-time defending Pac-10 champions downed the Wildcats 12-2 at Frank Sancet Field on Friday.
The loss snapped Arizona's season-high seven-game winning streak and dropped the Wildcats to 19-8 overall and 0-1 in conference play. USC won its second straight game while improving to 13-11 with the win.
Paschal dominated the normally potent Arizona bats, giving up just two runs in six innings of work. He struck out six, including five looking, and walked two to improve to 2-3 for the season.
Arizona starter Sean Rierson (4-1) was charged with his first loss of the season after lasting just 2 2/3 innings. The junior right-hander gave up seven runs, all earned, on eight hits.
Leading the charge offensively for the Trojans, who finished the game with 16 hits, was freshman Jeff Clement. The first-year catcher ended the game 3 for 5 with five RBIs, three runs scored and two home runs, both of which were hit in USC's 8-run third.
All nine of the USC starters had a least one hit in the game, with the 1 through 4 hitters going a combined 9 for 19, with six runs scored and eight RBIs.
Arizona's lone bright spot in the game was Brian Anderson's second triple in as many games in the sixth inning. The hit snapped a tie with Ernie Durazo for the longest single-season hitting streak in school history. Anderson, who has hit successfully in 26 straight games this season, needs a hit in Arizona's next two games to tie Durazo and Jack Daugherty for the all-time longest streak at 28 straight.