Saturday’s epic National League playoff showdown pitting the San Francisco Giants against the Washington Nationals — a 2-1 win for the Giants in 18 innings — made Fox Sports 1 the top-rated cable network in households in prime time based on Nielsen data for metered markets, Fox announced.

Fox Sports 1 also came in at No. 2 among all networks.

The marathon game lasted six hours and 23 minutes, becoming the longest playoff game in Major League Baseball history based on time. Its 18 innings equaled the mark for longest playoff game ever.

The Giants’ win gave them a 2-0 lead in the National League Division Series.

Fox Sports 1 averaged a 2.8 rating, the best on cable and second only to a 3.2 for CBS.

The game also helped set all-time marks for the network.

“On the day, Fox Sports 1 averaged a 0.92 metered market rating from 6 a.m.-3 a.m., eclipsing the former record (.84) set Friday. It’s projected that Friday, Oct. 3, and Saturday, Oct. 4, are likely going to be the two most-watched days in Fox Sports 1 history when national numbers are released,” the company announced.

The announcement adds: “According to fast national figures also released [Sunday] by Nielsen, the Giants-Nationals NLDS Game 2 averaged 3,160,000 viewers, fifth most-watched telecast in Fox Sports 1 history. NLDS Game 1 between the Cardinals and Dodgers on Friday became Fox Sports 1’s most-watched event ever (3.6 million). Compared to the first game of the Giants-Nationals NLDS series, Game 2 was up 55% (2,044,000 total viewers). The first nine innings averaged 2.5 million viewers, while innings 10-18 averaged 3.9 million, an increase of 56%. The game peaked at 4.2 million viewers at 11:30 p.m.-midnight ET.”