CHICAGO -- Jake Westbrook didn't get a decision in a landmark appearance on Wednesday, but he was glad the bullpen had his back as the St. Louis Cardinals rallied for a 5-4 victory over the Chicago Cubs.
Westbrook, who came in with a Major League-leading 1.07 ERA, gave up a season-high four runs in 5 1/3 innings and saw his ERA jump to 1.62 in his 300th career appearance and 260th start.
"The big part of the day was the bullpen stepping up," said Westbrook, who remains 2-1 for the season. "They did a great job. They got into a little trouble and found ways to get out of it and made huge pitches when they needed to. It was great to see."
Four relievers held the Cubs scoreless through the remaining 3 2/3 innings as the Cardinals won their seventh in eight games and split the two-game series.
Rookie Seth Maness (2-0) worked 1 2/3 innings in relief while Edward Mujica pitched the ninth for his ninth save. Michael Bowden (1-2) took the loss.
"I've still got some nerves inside and try not to let them show," Maness said. "I like watching Westbrook pitch, watching his style and the way he goes about it and learn from what he does. That helps out a lot."
John Jay singled home Yadier Molina with an eighth-inning single that broke a 4-4 tie.
Cubs right-handed starter Carlos Villanueva also did not factor into a decision after working 6 2/3 innings.
"Pitching into the seventh, I'll take that," Villanueva said. "The boys came out and swung the bats against Westbrook and did some damage off him ... it was a one-run game. We're close, we're right there."
Carlos Beltran went 3-for-5 with two RBI, Molina was 2-for-4 with a run scored while Matt Carpenter went 2-for-3, walked twice and scored two runs. Anthony Rizzo collected three hits while Nate Schierholtz and Cody Ransom each had two for Chicago.
The Cardinals grabbed a 1-0 lead in the first when Carpenter drew a leadoff walk, advanced to third on a full count hit-and-run on Beltran's single to right and scored when Matt Holliday grounded into a double play.
The Cubs evened the score in the bottom of the first. Luis Valbuena singled to center, reached third after Rizzo's double to the center-field wall and came home on Beltran's error on a throw from center to the infield.
The Cardinals pieced together a go-ahead score in the fourth as Allen Craig was hit by a Villanueva pitch and reached third on Molina's single with none out. Craig then put the Cardinals up 2-1 when he scored on John Jay's sacrifice to center.
The Cubs reclaimed the lead in the bottom of the fourth. Valbuena walked, reached second on Rizzo's single to left and both scored on Schierholtz' liner down the first-base line.
Newcomer Ryan Sweeney then reached on an infield hit and Schierholtz moved to third. He made the score 4-2 scoring as Navarro hit into a fielder's choice.
Chicago allowed one run in the fifth and averted a worse fate. With Peter Kozma and Carpenter at first and second, respectively, Beltran singled to left. Kozma scored, but Carpenter was tagged out at second.
Matt Holliday followed with a single and Craig ended the inning with a fly to right.
Villanueva got two out in the seventh and left for left-handed reliever James Russell after throwing 101 pitches. Villanueva allowed seven hits and three earned runs while walking three and striking out a pair.
"He did a nice job, got out of some jams and made the pitches when he had to," Cubs manager Dale Sveum said. "He was at a pitch count (101) and 6 2/3 innings and that's a lot of pitches for him in that many innings. He did his job."
But Russell gave up a double to right to Carpenter, who advanced to third on Schierholtz' throwing error. Beltran than punched a run-scoring single to left to tie the game at 4-4, the first runs Russell has allowed this season in 18 appearances.
"We just can't seem to shut anybody down in that sixth-seventh inning right now," Sveum said. "We're getting two strikes on people, we just get make a pitch when we have to."
The Cubs had runners on first and third in the eighth on reliever Randy Choate, but Schierholtz hit into an inning-ending double play.
NOTES: Wednesday's game wrapped up the first of six series meetings between the teams in 2013. Next up is a four-game series on June 17-20 in St. Louis ... Entering Wednesday, the Cardinals led the Major Leagues with a .324 average in all situations with runners in scoring position and .354 with two out ... Jay has had the team's hottest bat of late, hitting .500 (10-for-20) in six games through Wednesday, including career-high four RBI on Saturday. The last error he made was on Aug. 24, 2011 ... Darwin Barney was not in Wednesday's lineup after going hitless in his last 21 plate appearances . He's hitting just .147 in 20 games ... Valbuena moved up from sixth to third for Wednesday's game after reaching base 10 times in his last 17 plate appearances ... David DeJesus is closing in on 500 RBI and needs just six to hit that milestone.