LOS ANGELES -- Jim Tracy wants to win the division, just not at the expense of the career of perhaps the game's best pitcher.

The Rockies manager said on Saturday morning that Ubaldo Jimenez would not be brought back on short rest against the Giants in next weekend's three-game series at Coors Field, after Jimenez pitches Wednesday against the D-backs in Arizona.

"I really believe the question is well taken, the significance of the situation is completely understood," Tracy said. "But with the workload that we've given this guy up to this point, I really think that's pushing the envelope way too hard, as far as I'm concerned."

Jimenez picked up his 19th win on Friday, but it was a grind -- and he's had to grind for his last three starts. He's at 202 2/3 innings pitched after logging a career-high 218 innings in 2009.

"Let's be honest about it, the last two starts that he's had, they've not been world-beating type starts," Tracy said. "Last night, it seemed like he had baserunners on every inning."

Jimenez, who went 6 1/3 innings on Friday and allowed four runs, said that he feels fine and is open to whatever the Rockies want him to do.

Helton's four hits a good sign

LOS ANGELES -- Todd Helton notched his second four-hit game of the season on Friday, less than a month after his first one. August was by far Helton's best month of the season, as he hit .307 with four homers.

Batting .260 with six home runs and 32 RBIs, Helton has been at his best this season when his approach has been to focus on getting base hits and he keeps his swing compact.

"I really believe Todd is at his best when he is focused on staying tall and hitting hard line drives, foul line to foul line," manager Jim Tracy said. "And when he really squares one up, letting a ball go over the fence, that's the best approach that he can possibly take. When he is in that mode, striking him out is a very, very tough thing to do."

Tracy said a productive Helton is a luxury, because he can pick up any slack when Carlos Gonzalez and Troy Tulowitzki might not be on their games.

Worth noting

Ryan Spilborghs got the start in left field on Saturday over Seth Smith because manager Jim Tracy felt Spilborghs would better handle John Ely's lower-velocity, high-movement repertoire. ... The Rockies have been the National League's best team in day games, with a 33-17 record entering Saturday. ... Six strikeouts for Jhoulys Chacin on Saturday would tie him with Jason Jennings (2002) for the third most by a Rockies rookie in a single season. Chacin entered the day with 121.