A photo day promotion helped bring in a crowd of 17,023. The Expos, playing 22 home games in San Juan, Puerto Rico, this season to try to boost revenue, will play their next 22 games away from Montreal.
Vazquez (5-2) allowed two runs and five hits, including Jason Michaels' two-run homer in the second. He struck out eight and walked one.
Rocky Biddle pitched the ninth for his 14th save in 15 opportunities.
Jose Vidro also homered for the Expos, who completed a 5-1 homestand to remain two games behind Atlanta in the NL East. Montreal (32-18) has the second best record in the NL.
Brett Myers (4-4) allowed four runs and three hits in 6 2-3 innings.
Marlins 6, Reds 2
In Cincinnati, Dontrelle Willis (2-1) pitched eight shutout innings in his fourth major league start as Florida completed a rare three-game sweep.
Derrek Lee had three hits, including a solo homer, and Mike Lowell hit his 16th homer off Danny Graves (3-3) to cap a triumphant homecoming for manager Jack McKeon. He won the NL Manager of the Year Award by leading the Reds to 96 wins in 1999, but was fired after finishing second the following season.
The Marlins are 6-7 since McKeon took over for Jeff Torborg on May 11. It was their first three-game sweep on the road since August 2000, when they swept Cincinnati at Cinergy Field.
Pirates 8, Cardinals 7
Aramis Ramirez drove in three runs and St. Louis' usually flawless defense committed a costly error that led to Pittsburgh's four-run sixth inning.
Kenny Lofton doubled in an insurance run following Abraham Nunez's go-ahead sacrifice fly in the seventh, running his hitting streak to 23 games -- the Pirates' longest since Al Oliver's 23-game run in 1974.
The Pirates rallied from four runs down to avoid a three-game sweep and win for only the fourth time in their last 17 home games. They had dropped 15 of 20 overall.
Brian Boehringer (2-1) pitched a scoreless seventh for the victory, and Mike Williams earned his 14th save in 17 chances.
Scott Rolen and Jim Edmonds each hit a three-run homer for the Cardinals. Dustin Hermanson (1-2) took the loss.
Cubs 7, Astros 3
In Houston, Moises Alou hit three RBI singles and Carlos Zambrano pitched 6 1-3 strong innings as Chicago finished a long road trip on a high note.
The NL Central-leading Cubs took two of three in Houston to go 8-5 on the trip despite missing injured slugger Sammy Sosa. Zambrano (5-4) allowed three runs, five hits and five walks. He struck out five.
Rockies 5, Giants 1
Darren Oliver pitched six scoreless innings and hit an RBI double to win for the first time in nearly a month.
Greg Norton hit a two-run double in the seventh inning for Colorado, which won for just the third time in nine games. San Francisco, playing without injured Barry Bonds for the second straight game, has lost 10 of 15.
Oliver (2-3) worked through trouble most of the day, allowing seven hits for his first win since April 27. Colorado turned four double plays.
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