Diamondbacks 5, Cubs 4 (13 innings)
PHOENIX -- Arizona shortstop Nick Ahmed had three hits, including a walkoff single in the 13th inning, as the Diamondbacks extended their season-long winning streak to five games with a 5-4 victory over the Chicago Cubs on Friday at Chase Field.
Catcher Tuffy Gosewisch doubled with one out in the 13th off left-hander Zac Rosscup (1-1) to bring up Ahmed, who singled into the left-field corner in his first career three-hit game.
Ahmed hit his first homer of the season in the fifth inning.
Right-hander Randall Delgado (2-2) pitched out of a bases-loaded situation in the top of the 13th for the victory.
Chicago third baseman Kris Bryant and shortstop Starlin Castro gave the Cubs a 4-2 lead with RBI singles off right-hander Addison Reed in the top of the 10th inning, but the Cubs ran themselves out of a bigger inning when first baseman Anthony Rizzo was thrown out at third base on the front end of a double-steal attempt for the second out.
Center fielder A.J. Pollock doubled with two outs in the last of the 10th inning before first baseman Paul Goldschmidt hit his 11th homer off right-hander Hector Rondon, who blew his third save chance in 12 opportunities.
Goldschmidt had three hits, three RBIs and two stolen bases for the Diamondbacks (20-21).
Pollock, who was a triple short of the cycle, had four hits and scored two runs. He has 10 hits in his last four games, one as a pinch-hitter.
Fowler homered and right fielder Jorge Soler doubled and scored for the Cubs (23-18), who had won two in a row and eight of 10.
Cubs left-hander Jon Lester gave up two runs in seven innings in his fifth straight quality start. He had won his previous four games.
Pollock tripled with one out in the first inning and scored on Goldschmidt's single for a 1-0 lead.
Fowler hit his fifth homer of the season with one out in the third to tie the score at 1 against Arizona starter Josh Collmenter, who went five innings. Collmenter has given up seven homers in his last four starts covering 19 1/3 innings.
Soler doubled in the fourth and scored after infield singles by left fielder Junior Lake and second baseman Addison Russell to make it 2-1.
Ahmed extended his hitting streak to seven games with his first homer of the season to tie the score at 2 in the fifth.
NOTES: With homers in a 3-0 victory at San Diego on Thursday, 3B Kris Bryant and 2B Addison Russell became the first Cubs rookie infielders to homer in the same game since 1B Andre Thornton and 3B Ron Dunn on Sept. 13, 1974. ... Arizona LHP Patrick Corbin (Tommy John surgery) was given a few days off when he experienced soreness after an extended spring training outing on Monday. The Diamondbacks were shooting for a June 4 return, but it will be "a little later than that," manager Chip Hale said. ... The Cubs were 12-7 in one-run games, with a major-league high in victories. ... Arizona 3B Yasmany Tomas had a streak of six straight multiple-hit games, one short of LF Luis Gonzalez's team record set in 2001.