DENVER (AP) -- A quick start to the season has turned into rough stretch for the struggling Colorado Rockies.
Nick Hundley hit his first home run with the Rockies and also tripled but the bullpen faltered in the late innings and the San Diego Padres rallied for a 7-6 win on Tuesday night.
Charlie Blackmon also tripled and drove in two runs for Colorado, which has lost five straight after starting the season 7-2.
"We're playing good teams but we haven't played well," Hundley said. "The first 10 games of the season we were making a lot of plays and playing good defense. We'll get back to that."
The Rockies got solid starting pitching and strong work from their relievers during the first 10 days of the season, but both units have struggled at times during the five-game skid. On Tuesday, starter Tyler Matzek labored through five innings but left with a three-run lead before the bullpen allowed five runs in the seventh and eighth innings.
"I felt like I had pretty good fastball command, which is something I didn't really have in the last two (starts)," Matzek said. "Its just a good lineup over there."
Derek Norris had two doubles, Clint Barmes homered and Wil Myers had three hits for San Diego, which has won three straight and six of seven.
The Rockies used a three-run fifth to take a 5-2 lead but the bullpen couldn't hold it. The Padres got one in the seventh and then went up in the eighth.
Pinch-hitter Yangervis Solarte singled home a run, and after a failed safety squeeze left runners at first and second with two outs, Myers tied it with a single. Norris followed with a two-run double off Boone Logan (0-1) to give the Padres a 7-5 lead.
"I'll take Boone in that situation every time," manager Walt Weiss said. "The inning was set up nice for him with the lefties. They were tough outs in that inning. They found a way to put the ball in the outfield and get some hits."
Hundley led off the ninth with a home run off Craig Kimbrel, but the righty retired the next three batters for his fifth save.
Brandon Maurer (1-0) pitched a scoreless seventh inning to get the win.
Barmes led off the third with his first home run since Sept. 11, 2013, to put San Diego ahead 1-0. Matt Kemp's RBI double later in the inning made it 2-0.
The Rockies tied it in the fourth on a triple by Hundley and a groundout by D.J. LeMahieu.
San Diego was poised to break it open in the fifth when Colorado's defense bailed out starter Tyler Matzek. After the first two batters walked, Myers singled to right and Barmes was tagged out in a rundown between third and home.
Rafael Ynoa's error at third loaded the bases but Matzek got Kemp to ground into an inning-ending double play.
Colorado averaged five runs a game during its hot start but the offense has sputtered since. The Rockies are averaging just three runs a game during the five-game losing streak.
"We need to get the offense going again," Weiss said. "We've run into some tough arms but that's the way it's going to be all year. There's some tough arms in the division. We've got to deal with it and deal with it a little better than we have."
Padres: RHP Ian Kennedy joined the team in Denver on Tuesday and is on track to come off the 15-day DL when he's eligible Saturday. Manager Bud Black said he didn't talk to Kennedy before batting practice Tuesday but did say "he's ready," after throwing 81 pitches in an extended spring training game Monday.
Rockies: 3B Nolan Arenado (left wrist) and OF Corey Dickerson (left plantar faciitis) were both out of the starting lineup Tuesday. Arenado said his sore left wrist felt better after taking swings off the tee. Dickerson has been bothered by the plantar faciitis since spring training but he doesn't think it's serious. He pinch-hit in the ninth
Padres: RHP James Shields (2-0) will try to continue his strong start with his new team. Shields entered Tuesday with 24 strikeouts in three starts, which was tied for fourth in the NL. He has pitched at least six innings in each of his three starts.
Rockies: RHP Kyle Kendrick (1-2) had an impressive start on opening day but struggled in his next two starts. He allowed a career-high eight earned runs against the Cubs on April 11 in his first Coors Field start as a Rockie. He was roughed up for six runs against the Dodgers on Saturday.