ST. LOUIS (AP) - Brad Hawpe drew a full-count walk with the bases loaded in the ninth inning for the tiebreaking run in the Colorado Rockies' 3-2 victory over the St. Louis Cardinals on Monday night.

Todd Helton homered for the Rockies, who have won three of four after taking the opener of a three-game series. Colorado was 1-5 at Busch Stadium last year.

Ryan Ludwick and Jim Edmonds each drove in a run for the Cardinals, who have lost seven of nine and are 5-11 at home. St. Louis is 2-2 during a six-game homestand, scoring in only three innings, and scored fewer than three runs for the 16th time in their first 30 games.

Troy Tulowitzki had to wait to score the go-ahead run after umpires ruled that his one-out drive off the top of the wall in left center was a double and not a home run. Manager Clint Hurdle drew his first ejection of the season for arguing the call with second base umpire Bob Davidson.

Replays were inconclusive on Tulowitzki's shot off Brian Falkenborg (0-1), but appeared to show the ball striking the base of a metal railing just above the top of the wall and beyond a section of shrubbery. Three more walks, including an intentional pass to Garrett Atkins by Tyler Johnson to load the bases, produced the run.

Johnson fell behind 3-1 in the count to Hawpe, got a called strike and then was well outside on ball four.

Zach McClellan (1-0) had two strikeouts in a perfect eighth and Brian Fuentes got the last three outs for his eighth save in nine chances.

Cardinals starter Anthony Reyes, who lost his first five starts, had his best outing of the year. Reyes, who won the World Series opener last fall, allowed two runs and three hits in six innings with five strikeouts and no walks.

Jeff Francis, who had lost a career-worst four straight starts with a 7.99 ERA, also had a strong outing for Colorado. Francis allowed two runs and four hits in seven innings.

The Rockies were aided by three unconventional double plays, one on runner's interference, one on a poor bunt and a lineout to right after starting the runner off first.

Helton hit his third homer leading off the second and Tulowitzki's two-out RBI double in the third made it 2-0. Helton batted .189 with no RBIs in 37 at-bats against the Cardinals last season.

The Cardinals took advantage of Francis' control problems to load the bases in the fourth on two walks and a single. Ludwick singled up the middle with a liner that barely missed Ludwick for one run and Edmonds' liner deflected off Francis' left side to second baseman Omar Quintanilla, who threw to first just in time for a run-scoring groundout that tied it at 2.

Notes: Cardinals OF Juan Encarnacion was 6-for-41 (.146) with two RBIs during a rehab stint at Double-A Springfield. ... Jeff Baker, who struck out as a pinch hitter to end the Rockies' seventh, is in a 1-for-30 slump. ... The Cardinals have used 27 lineups in the first 30 games. ... McClellan, who earned his first major league victory, has 13 strikeouts in 11 innings overall.