ST. LOUIS -- Shelby Miller gave himself a boost with his bat. The rookie pitcher hit his first career home run and pitched six sharp innings, leading the St. Louis Cardinals over the Arizona Diamondbacks 12-8 Thursday night. "I havent hit a home run since high school, at least in a game," said Miller, whose 1.91 earned run average continues to lead the National League. "It was neat. It will be something I remember for sure. Sometimes you get lucky." Miller (7-3) allowed two runs and six hits. He struck out nine and walked none. Arizona scored three times in the ninth, and Edward Mujica got the last two outs for his 18th save in 18 chances. Matt Adams and Daniel Descalso homered in an eight-run fourth inning off Ian Kennedy. Matt Holliday and Matt Carpenter also connected for the Cardinals. Kennedy (3-4) was tagged for 10 runs and 13 hits in four innings. Kennedy nearly escaped the fourth with giving up just one run, but his throw off on Yadier Molinas comebacker pulled shortstop Didi Gregorius wide of second base. What could have been an inning-ending double play instead led to Adams three-run homer and Descalsos two-run shot. "I think weve made that play and we expect to make that play," Arizona manager Kirk Gibson said. "It didnt happen today and it cost us." Kennedy endured the entire inning and threw 50 pitches. He had 99 total, only 60 for strikes. He said typically hell ask his middle infielders which one will cover the bag in a situation like that before he makes a pitch. He failed to do so and when he saw second baseman Cliff Pennington break toward the bag his instinct was to throw it to him until Gregorius took charge. By then, Kennedy double clutched and threw wide. "That whole sequence. It was perfect," he said. "I was trying to get a double play in that situation. It would have been a lot different if I was able to turn. Thats just my fault. I should have known who covered the bag just before that pitch." The Cardinals hit five homers in a game for the first time since last July 27. The previous time they did it at home was June 24, 2005, at the former Busch Stadium. David Freese extended his career-best hitting streak to 16 games for St. Louis. Descalso scored twice in the big fourth and finished with three hits, including a double. The first five batters in the St. Louis starting lineup all got two hits, as did Miller. Manager Mike Matheny liked what he saw from Miller at the plate. He hopes that the pitcher doesnt let it change his approach. ""Youll take any runs you can get, but we hope he doesnt go up there trying to do that every time," Matheny said. The Cardinals greeted reliever Matt Reynolds with back-to-back home runs from Miller and Carpenter to open the fifth and stretch their lead to 12-2. Arizona scored twice in the first on an RBI groundout by Paul Goldschmidt and a single by Miguel Montero. "I have a tendency of letting up in the first inning," Miller said. "I have got to figure out a way to be as aggressive like I am in the middle of the game and toward the end, in the first couple of innings. I just wasnt doing it early on." Gerardo Parra had three hits, including an RBI single in a three-run seventh for Arizona. The Diamondbacks scored three more in the ninth when rookie Keith Butler gave up a hit to Pennington and a double to Wil Nieves before walking three consecutive batters. Notes: The Cardinals have gone 9-0-3 in their past 12 series. ... Goldschmidt has an RBI in six consecutive games. ... Carpenter extended his career-best hitting streak to 15 games. Allen Craig has a 10-game streak. ... Miller was 2 for 25 in his career at the plate entering the game. He singled in the second for his first hit of the season. ... 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The Czechs pulled two back in the ninth, but Shusters team of third Jeff Isaacson, second Jared Zezel and lead John Landsteiner ended with another point to secure the last Olympic berth on offer. Chris Bosh Heat Jersey . - Blake Griffin had 30 points and 12 rebounds, J. CLEVELAND -- Major League Baseball is hoping it can play Game 2 of the World Series on Wednesday night despite the rain.MLB senior vice president Peter Woodfork said officials were prepared to have the Chicago Cubs and Cleveland Indians play through light rain.If its light and ... we dont think its going to get any heavier, I think wed be apt to play in that, he said about 2 1/2 hours before the scheduled 7:08 p.m. start. The fields in good condition. The tarps been on. The outfield can take a lot of water.Woodfork said Commissioner Rob Manfred will examine the situation at about 6:15 p.m., in time to notify teams whether to have their starting pitchers start to warm up.MLB on Tuesday moved up Wednesdays start by an hour to 7:08 p.m., and light rain started to fall at about noon.Accuweather said that if rain tracks to the north, there will be a spot shower or two during the game, but that if rain remains over the area, it could be steady and cause delays.Right now we have a light rain, light drizzle, spitting out probably until about 10, Woodfork explained. That being said, its probably come a little heavier than we expected already. So, were confident, but things can change, and well have to read and adjust.While regular-season games can be shortened because of bad weather as long as the losing team has completed at least five innings, a rules change approved in 2009 mandates that all postseasonn games and regular-season tiebreakers must be played to conclusion at the ballpark where they began.ddddddddddddThe change came a few months after Game 5 of the 2008 World Series, which became the first World Series game to be suspended with the score tied at 2 in the sixth after a steady rain turned the field into a soggy mess. The game resumed two days later, with the Phillies edging Tampa Bay 4-3 to clinch the title.Cubs manager Joe Maddon, who managed the Rays in 2008, remembers the game being very awkward to play.The rain was horizontal, Maddon said a few hours before Game 2. It was freezing. There was actually standing water on the field. They wouldnt even call an infield fly rule because the wind was blowing so much. It was really an abnormally difficult night to play baseball.Thursday is a scheduled off day before the Series is set to resume at Chicagos Wrigley Field, which last hosted the Series in 1945.We want to do all we can to avoid breaking the game up. That being said, you cant control the weather, Woodfork said. I think they understand here in Cleveland that the weather can be a little dicey, so if something happens and they need to come back tomorrow, again, thats unfortunate, we dont want that to happen, but realistically we cant control the weather. ' ' '