MONTREAL (AP) _ Todd Helton homered twice to reach 30 for the first time in his career and drove in three runs Wednesday to lead the Colorado Rockies over the Montreal Expos 5-1.

A day after Rockies manager Jim Leyland confirmed he will retire following the season, Colorado dominated with the long ball. Larry Walker hit his 35th home run, going 2-for-3 to raise his league-leading batting average to .368.

Helton hit a solo homer in the fourth off Dan Smith (4-8) and a two-run drive in the sixth, giving him five multihomer games this season and seven in his career.

Jamey Wright (2-2) allowed one run and four hits in seven innings to win for the second time in three decisions since he was recalled from Triple-A Colorado Springs on Aug. 2.

Jerry Dipoto and Dave Veres finished the six-hitter. Smith gave up all five runs and four hits in six innings.

The game drew 5,548, giving Montreal a total of 717,512 for 75 home dates, an average of 9,567 with six dates remaining. The Expos are the only team in the major leagues who haven't drawn 1 million fans at home.

Vinny Castilla's RBI grounder put Colorado ahead in the first and Walker homered leading off the fourth. He didn't start the first two games of the series because it was played on artificial turf and he wanted to rest his knees.

Vladimir Guerrero's run-scoring grounder in the bottom half pulled the Expos to 3-1. It was Guerrero's team-leading 109th RBI, tying his career best, set last season.

Notes: Dante Bichette has 29 homers and Vinny Castilla has 27, giving Colorado a chance to have four players reach 30. ... The Rockies, who begin a 12-game homestand _ their longest of the season _ on Friday, are scheduled to play 15 of their remaining 21 games at Coors Field. ... Montreal's Geoff Blum reached on catcher's interference by Ben Petrick in the fifth. ... Montreal's Rondell White went 0-for-3, ending his 14-game hitting streak, which tied for his career best.