Rapid Reaction: Cubs 2, White Sox 1

CHICAGO -- Here’s a quick look at the Chicago Cubs’ 2-1 win over the Chicago White Sox at U.S. Cellular Field on Tuesday.

How it happened: An error ended up being the difference in Tuesday’s game. Third baseman Orlando Hudson’s errant throw in the second inning came back to haunt the White Sox. The Cubs scored twice after the error with one of the runs being unearned, and that was enough separation for Cubs starter Travis Wood and their bullpen. Wood allowed four hits and one run in six innings, and the bullpen held strong for three innings. White Sox starter Jake Peavy was just as good. He allowed five hits and one earned run in nine innings. He had a streak of retiring 16 consecutive hitters from the third to eighth innings. He hasn’t allowed more than two earned runs in his last four starts, but hasn’t won any of the games.

What it means: The Cubs now have a chance to sweep the White Sox at U.S. Cellular Field just as the White Sox swept them at Wrigley Field last month. The White Sox dropped out of first place in the American League Central with the loss. The Cleveland Indians moved into first place. Tuesday’s loss also means the White Sox will lose their fifth consecutive series. They have now lost 10 of their last 14 games.

Outside the box (White Sox): Home continues to be unfriendly place for the White Sox. They’re now 16-20 at home compared to 19-13 on the road. Last season, they finished nine games under .500 at home and five games over on the road. They were better at home than in the road in 2010.

Outside the box (Cubs): Spring training was bad for Travis Wood, Triple-A was better and in the major leagues, he has been his best. After utterly failing to make the team out of spring training, Wood went to Iowa where he posted a 4.57 ERA over seven starts. With the Cubs in seven starts, he has a 4.14 ERA after giving up one run over six innings to the White Sox on Tuesday.

Play of the game: Chasing down a pop up in shallow center field, Cubs shortstop Starlin Castro reached over his right shoulder for the ball. It bounced off his glove, flew into the air and he snatched it with his right hand while still running to rob the White Sox’s Alejandro De Aza of a hit in the fifth inning.

Up next: Gavin Floyd (4-7, 5.63) will start for the White Sox against Cubs starter Randy Well (1-1, 4.50) in the series finale on Wednesday.