Isaac Omura led the way for the Rainbows, going 2-for-4 with one RBI and one run scored. Jaziel Mendoza added a 1-for-2 game with one run scored while Brian Bock went 1-for-1 with one run. Joshua Green had the big hit for the game, hitting a solo home run.
Ponomarenko pitched three innings, giving up no runs and just three hits while striking out three. Keahi Rawlins started the game, giving up no earned runs in two innings, striking out four and walking just one.
San Francisco got on the board first when Maui native Royce Fukuroku scored on an error after getting a single and a stolen base.
Hawai`i finally responded in the third inning, as Omura drove in a run, then scored on a Don error, putting UH up 2-1.
Green added another run in the top of the eighth, hitting his first home run of the season over the right field wall.
Bock scored another insurance run on a Don error in the top of the ninth, giving the `Bows the 4-1 victory.
Hawai`i will now head down to Fresno State for their WAC-opening series on Friday, Saturday and Sunday. Christopher George (4-0) will start Friday's game, which will start at 6:35 p.m. Pacific time.