PHOENIX 鈥 Ketel Marte鈥檚 two-run homer capped a six-run fourth inning, and the Arizona Diamondbacks stayed alive in the National League wild card race with an 11-2 rout of the playoff-bound San Diego Padres on Sunday in their regular-season finale.
Arizona finished 89-73 and won鈥檛 know if it reaches the postseason until a makeup doubleheader Monday between the New York Mets and Atlanta Braves, who are both 88-72.
If either team sweeps, the Diamondbacks reach the playoffs, but if the doubleheader is split, the Mets and Braves advance and Arizona is out.
鈥淚t鈥檚 weird. We don鈥檛 even know who to root for,鈥 Diamondbacks outfielder Corbin Carroll said. 鈥淵ou just wait to see who wins the first game and root for them in the second. We鈥檒l work out here and be ready to go.鈥
Arizona can only wait to find out if it travels to Milwaukee for a best-of-three Division Series against the NL Central champion Brewers.
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鈥淚t sucks,鈥 D-backs manager Torey Lovullo said. 鈥淏ut there鈥檚 nothing we can do about it. We made this bed. We got to sleep in it, but we鈥檙e going to hope for the best. They鈥檙e two great franchises, two great managers, and I don鈥檛 think either have the gene of laying down.鈥
Lovullo knows how hard is to sweep a doubleheader.
鈥淚t鈥檚 always to challenge,鈥 he said. 鈥淚t鈥檚 going to be a battle of will, and the fatigue factor, but they鈥檙e both going to be hungry.鈥
San Diego (93-69) won鈥檛 learn until Monday where its Wild Card Series opponent will be the Mets or Braves.

Randal Grichuk of the Diamondbacks tags home plate to score against the Padres on Sunday in Phoenix.
Luis Arraez of the Padres doubled in the sixth inning to finish 1 for 3 and move to the verge of his third consecutive batting title at .314. He鈥檚 the first since 1900 to win three batting titles with three different teams.
Brandon Pfaadt (11-10) allowed two runs and three hits in 5 1/3 innings with nine strikeouts for the Diamondbacks, who had lost five of six.
鈥淲e used a little bit of everything,鈥 Pfaadt said of his pitch selection. 鈥淲hen they put up a 6-spot in the fourth that kind of helps the pitching side.鈥
Ryne Nelson, activated from the injured list on Friday, pitched three innings for his first big league save, finishing a four-hitter.
Christian Walker鈥檚 double began a run of five straight hits in the fourth off Mart铆n P茅rez (5-6). Eugenio Su谩rez鈥檚 single drove in Walker and gave him 100 RBIs for the season.
Jake McCarthy鈥檚 run-scoring single, Gabriel Moreno鈥檚 RBI double and Geraldo Perdomo鈥檚 run-scoring grounder built a 4-1 lead, and Marte hit his 36th homer, a drive into the left-field second deck.

Arizona鈥檚 Ketel Marte celebrates after his two-run homer the against San Diego in the fourth inning Sunday. The D-backs will find out Monday if they are headed to Milwaukee 鈥 or to the offseason.
P茅rez gave up six runs and eight hits in 3 2/3 innings.
Su谩rez hit his 30th homer off Matt Waldron to dead center field leading off the sixth and Randal Grichuk connected for his 12th with a man aboard in the eighth, also off Waldron.
Su谩rez hit 20 home runs after the All-Star break. Only Shohei Ohtani and Aaron Judge had more.
鈥淎fter I have that first half, I wasn鈥檛 that good, and then be able to have 30 homers, it鈥檚 awesome,鈥 he said.
Arizona finished with five more wins than last year, when the D-backs earned the last wild card and reached the World Series, where they lost to Texas.
Elias Diaz and Jake Cronenworth drove in runs for the Padres, who won 11 more games than last year and finished with their second-highest total behind 98 by the 1998 NL pennant winners.
A crowd of 38,892 gave Arizona a season attendance of 2,341,876, the Diamondbacks鈥 highest total since 2008 when they drew 2,509,924.
Up next
Padres: Host a wild card series beginning Tuesday.
Diamondbacks: Await the results of Monday鈥檚 Mets-Braves doubleheader.