SAN DIEGO -- There's no place like home, although Wrigley Field wasn't very friendly for the Cubs this year.

They wrapped up the home portion Sunday with a 35-46 record. Heading into the final seven-game road trip of the season, the Cubs are 35-39 on the road.

Cubs manager Mike Quade was unaware of the difference.

"Now I'll lose sleep because of that," Quade said Monday. "I didn't realize there was a discrepancy. I always chalk that up to coincidence unless it's so ridiculous."

It is a little lopsided.

"I'm just glad that we've played well here of late, whether it's been home or on the road or whatever," Quade said.

The Cubs finished with a .265 home batting average, 14 points higher than the .251 road average, and a 4.48 ERA at Wrigley, which is 38 points higher than the road mark (4.10 ERA).

Cubs' Friday starter won't be Silva

SAN DIEGO -- The Cubs have yet to name a pitcher for Friday's series opener against the Astros, and manager Mike Quade said they considered using Carlos Silva to give him one last start.

Silva (10-6, 4.22 ERA) has not pitched since Sept. 7. He pulled himself from his next scheduled start because of tendinitis in his right elbow. Silva has stayed with the team and done his conditioning but hasn't built up pitch count to start.

"We just can't," Quade said about giving the right-hander one more start. "Hopefully, his progress will be enough that if we need him in a bullpen situation, we can use him."

Quade said he would meet with pitching coach Larry Rothschild on Tuesday to finalize the rotation for the final series. Carlos Zambrano and Ryan Dempster will start Saturday and Sunday.

Either Casey Coleman or Jeff Samardzija will start Friday against the Astros. Coleman is coming off a win over the Cardinals on Saturday, while Samardzija took the loss on Sunday.

"The reason we have time is neither one of those guys would be available today," Quade said.