Nick Moore and Brett Viboch are tied for the 54-hole lead at 6-under-par 207, with three players just a shot behind. 16 players are within five shots of the lead.
Nineteen players broke par on the North Course at Corica Park on Saturday, led by Matt Heitel who shot a 6-under 65 to get within one of the leaders at 5 under par.
Bobby Bucey is sixth at 4 under, two shots back, while 1996 champion Dong Yi is three back.
Five-time champion Rick Reinsberg shot a 68 on Saturday to get into a large group of players five behind the leaders at 1 under for the tournament.
ROUND TWO RECAP
Rounds of 64-72 have sprung Ryan Grauman into the lead at the end of two rounds at the Alameda Commuters.
A senior at Athenia High School, Grauman, currently sits at 6-under and one-stroke in front of 5-under Brett Viboch who made a run to the San Francisco City Championship quarterfinals earlier this year.
Now comes the hard part for Grauman, as not only will he have to sleep with the lead, but he will have to do so until next Saturday when play resumes. Once play resumes Grauman will look to do something he wasn't able to do at last May's AGC Monterey Bay Championship where he held the first round lead before finishing second, two shots behind Cal star KK Limbhasut.