Hartwell replaced starter Mike Smith in the fifth inning and worked 4 1/3 while giving up three hits and two runs, both earned. Hartwell matched the four strikeouts Smith collected while surrendering six runs, four earned, on six hits through four.
It was the second victory in as many decisions this season for Hartwell, who Altobelli said was pulled from the pitching staff in order to concentrate on outfield play after struggling on the bump during the fall.
"But then when we came back [from semester break], we had some guys who were ineligible, so we needed him [pitching] again," Altobelli said of the staff's lone left-hander. "And he has been great for us."
Hartwell has now allowed just three hits and two earned runs in nine innings this season.
Freshman first baseman Bryan Garza (three for five with two runs batted in), sophomore second baseman Zach Chavez (two for four with one RBI) and freshman outfielder Chris Carlson (two for five with two runs scored) continue to pace the offense, which wasted little time making its mark Tuesday.
After an error led to two first-inning runs by the Chula Vista-based visitors, the first seven OCC hitters reached base and scored against heralded Jaguars sophomore starter James Trebus. Trebus, who came in with a 1.29 ERA and one win in seven innings, and who drew the interest of a handful of professional scouts on hand, did not retire a batter. Trebus walked four, while Carlson, Garza and sophomore designated hitter Matt Moynihan all singled off the hard-throwing right-hander.
"I liked the way our guys were patient, understood the plan and took some pitches in that first inning," Altobelli said. "We had some big at-bats there."