Updated

Chicago, IL (SportsNetwork.com) - The San Francisco Giants became the first team to win a protest in 28 years earlier Wednesday.

Their offense proceeded to pour it on the Chicago Cubs a bit later.

Hunter Pence smacked a solo shot and scored another run, while Andrew Susac cracked his first-career Big League homer to lift the Giants to an 8-3 win over the Cubs.

MLB stated Wednesday that Tuesday's rain-shortened loss to the Chicago Cubs, which was called following a 4-hour, 34-minute rain delay due to unplayable field conditions, is scheduled to be completed Thursday at Wrigley Field starting at 5:05 p.m. ET.

The grounds crew had trouble covering the field with the tarp properly once the game was halted. When the tarp was taken off following the lengthy delay, excess water was left dumped onto the infield dirt.

San Francisco claimed that not enough was done to dry the infield in a timely manner and decided to file a protest. The contest will pick up in the bottom of the fifth inning with the Cubs batting and holding a 2-0 advantage.

"We're going to abide by it and hopefully finish it off," Cubs manager Rick Renteria said. "We have to take it all in stride."

Travis Ishikawa went 3-for-5, drove in three and scored a run and Jake Peavy (2-3) struck out eight, allowing two runs on 10 hits over seven innings for the Giants.

"The ball club made it easy on me tonight," said Peavy. "I shouldn't say that, it's never easy, but when you get staked to the lead that I got staked to you can do what you need to do, throw a lot of strikes."

Edwin Jackson (6-14) was pounded for seven runs on eight hits and two walks over 2 2/3 frames for Chicago. Chris Valaika belted a two-run blast and Luis Valbuena launched a solo shot in defeat.

The Giants raced out to an 8-2 lead after plating four runs in the first, three in the third and another in the fourth.

Angel Pagan and Pence led off the game with consecutive singles to put runners on the corners and Pablo Sandoval's sacrifice fly plated Pagan. Michael Morse walked and Pence advanced to third before Joe Panik singled to bring him home. Ishikawa followed by lining a double down the left-field line to push across Morse and Panik.

Valaika's two-run shot to right in the second got the Cubs on the board.

San Francisco, though, responded immediately.

Morse doubled to begin the third and Ishikawa's two-bagger two batters later scored him. Susac then sent his two-run shot the opposite way into the front row of seats to right-center.

Pence's leadoff blast in the fourth gave the Giants their six-run cushion.

Valbuena's homer in the eighth cut the gap to 8-3.

Game Notes

San Francisco's protest was the first one that was upheld since the Pirates won a claim that a game in Pittsburgh against St. Louis ended prematurely on June 16, 1986 ... The Giants were 4-for-16 with runners in scoring position, while Chicago finished 1-for-6.