DENVER -- Losing 100 games seemed to be a distant worry for the Colorado Rockies a week ago.
It's definitely more real now.
Wilin Rosario homered among his three hits, but the Rockies fell 8-7 against the Arizona Diamondbacks for their eighth consecutive loss.
Jordan Pacheco also had three hits and Andrew Brown had a solo shot for Colorado (58-93), which is two losses shy of its most in a single season. The Rockies need to win five of their last 11 games to avoid the franchise's first 100-loss season.
Colorado lost Saturday despite outhitting Arizona 14-13.
"There has to come a time where seven runs and 14 hits are enough," Rockies manager Jim Tracy said.
Aaron Hill tripled and drove in four runs for Arizona, which has won five of six. Jason Kubel had two hits and two RBIs.
J.J. Putz pitched a scoreless ninth for his 31st save as Arizona remained 4 1/2 back of St. Louis for the second NL wild card.
"We're not out of it. We've still got a little time left," Kubel said. "If we keep this up hopefully we put more pressure on teams in front of us, but we've got to keep it up ourselves."
Both starting pitchers struggled and neither got to the fifth inning. Arizona staked Patrick Corbin to an early lead but he allowed five runs and nine hits in just three innings.
Brad Bergesen (2-0) tossed two innings of one-hit ball to get the win.
Rockies starter Jhoulys Chacin needed 84 pitches to get through four but left with a 5-3 lead. The Diamondbacks then scored five times in the sixth with the help of the Colorado bullpen.
Carlos Torres (4-3) loaded the bases with two walks before Hill tripled to centre field. Torres issued another walk before Josh Outman came on and loaded the bases again with the fourth walk of the inning.
Kubel knocked in Hill with a sacrifice fly and Chris Johnson had an RBI single to make it 8-5.
"Loading the bases twice on four walks, more times than not that's going to cost you pretty badly at the major league level," Tracy said. "That's where the game lies. We set the stage for them. That's how they were able to come up with five runs in the sixth."
The Rockies got one back in the bottom half on Matt McBride's RBI single, and Josh Rutledge scored on Rosario's double-play grounder in the seventh.
Rosario hit his 26th homer leading off the third to establish a franchise rookie record. Todd Helton hit 25 homers as a rookie in 1998.
The Diamondbacks got off to a fast start one night after pummeling Colorado pitchers for 15 runs and 19 hits. Adam Eaton led off with a triple and scored on a groundout. Justin Upton and Paul Goldschmidt doubled and Kubel singled to give Arizona a 3-0 lead.
"I started throwing strikes in the first inning," Chacin said. "They just started swinging and got me. They just hit it where nobody was."
Colorado responded with four in the second. Brown led off with his third homer of the season, DJ LeMahieu tripled and scored on Dexter Fowler's single and Pacheco hit a two-run double.
"It's a very difficult chore to ask these guys to keep coming back two or three times," Tracy said. "They get down early, they get us back in to the game, they get us a lead. We have the bad inning and they continue to do more."
NOTES: Rosario also leads all NL rookies in home runs. ... Rockies OF Carlos Gonzalez (tight left hamstring) did not start but pinch hit in the ninth. He struck out.