On Tuesday night, the Cubs were leading the Giants 2-0 in the bottom of the fifth inning when a localized downpour caused the game to be delayed for more than four hours after the Wrigley Field grounds crew could not get the tarp on the field quickly enough.
The rain stopped, but the game could not be completed after umpires deemed the field conditions unplayable. The game was official, so the Cubs were awarded a rain-shortened victory.
The Giants, who are in playoff contention, were understandably unhappy and protested under the provisions of Rule 4.12 (a) (3), which states a game can be suspended due to a "malfunction of a mechanical field device under the control of the home club."
In this case, the "mechanical field device" is the tarp, which MLB determined had not been put away properly after its previous use. That's the home club's fault.
Therefore, the protest was upheld, and the game will resume at 4 p.m. Thursday with the Cubs batting in the bottom of the fifth inning and leading 2-0. The two teams have a regularly scheduled game at 7 p.m.
How rare is it for a protest to be upheld? The last time it happened was June 16, 1986.
The Pittsburgh Pirates were trailing the St. Louis Cardinals, 4-1, in the top of the sixth inning when umpires called the game after a pair of rain delays that spanned 17 and 22 minutes, respectively.
National League regulations required that umpires wait at least 75 minutes during an initial weather delay and 45 minutes during a second one before calling a game.
The umpires didn't do that, so the Pirates protested. The complaint was upheld. The game was resumed, and the Pirates lost anyway, 4-2.
The most famous upheld protest, of course, was the "Pine Tar Game," which was played on July 24, 1983, at Yankee Stadium.
The Kansas City Royals were trailing the New York Yankees, 4-3, with two outs in the top of the ninth inning when George Brett connected for a two-run home run to put Kansas City ahead, 5-4.
New York manager Billy Martin argued that Brett had too much pine tar on his bat. Umpires agreed and called Brett out. That was the third out of the top of the ninth, so the game ended with a Yankees win and a Brett tirade for the ages.
The Royals protested. The league office reversed the call, declaring that Brett's home run should count and ordering the game to be restarted from that point. Nearly a month later, on Aug. 18, Kansas City finished off a 5-4 victory.