WASHINGTON (AP) ― Brandon Belt homered off Tanner Roark in the 18th inning to lift the San Francisco Giants to their 10th consecutive postseason victory, edging Washington 2-1 on Saturday for a 2-0 lead in the National League Division Series.

It equaled the mark for most innings in a postseason game and set a time record at 6 hours, 23 minutes.

Later, Matt Kemp hit a go-ahead home run leading off the eighth inning, lifting the Los Angeles Dodgers to a 3-2 home win over the St. Louis Cardinals to level their NL Division Series at one game each.

Down to their final out in the ninth, the wild-card Giants leveled it on Pablo Sandoval’s RBI double, then saw Nationals manager Matt Williams and second baseman Asdrubal Cabrera ejected in the 10th.

Yusmeiro Petit entered in the 12th and threw six scoreless innings, allowing one hit and striking out seven, to earn the win. Hunter Strickland got the save with a scoreless 18th.

The Giants can close out the best-of-five NLDS at home Monday in Game 3, with Madison Bumgarner ― who tossed a shutout against Pittsburgh in the wild-card game ― facing Doug Fister.

LA Dodgers 3, St. Louis 2