"Tough losses but losses where we played pretty well," Padres third baseman Chase Headley said. "We were able to execute, we didn't make silly mistakes. It's the games that you give away that you feel bad about."
San Diego interim closer Luke Gregerson, attempting a four-out save, instead allowed a one-out home run to Andre Ethier in the bottom of the ninth inning as the Dodgers (73-63) rallied to tie the game.
This marked the first time this season the Padres lost a game when they led after eight innings. They are 56-1 in those games.
"From my vantage point, it looked like it caught a little too much of the plate," Padres manager Bud Black said of the slider Ethier hit over the right-field wall.
San Diego rookie starting pitcher Andrew Werner was long gone by the time this one finished, though he continued to impress in this his third Major League start.
"Good secondary pitches and a good fastball, located to both sides of the plate," Black said. "And the changeup, when down, had great action to it. It sort of bottomed out. It was a really good outing for a guy making his third Major League start."
Werner, getting a lot of mileage out of his slider and changeup, struck out a career-high eight batters in six innings. The left-hander walked one and didn't allow a run until the fifth inning, when Mark Ellis pounded a two-out single into left field to score a run.
"You just don't know what you are going to get when you get a guy you've never faced," Dodgers manager Don Mattingly said. "It'll be interesting if we get the kid again in San Diego to see if we are any better. He did a good job against us. He threw strikes and we didn't do a lot with him."
Werner made few mistakes, though he certainly did in the sixth inning when he left a first-pitch sinker out over the plate to Hanley Ramirez. This came after Werner struck out Ramirez in this first two plate appearances.
"It was an awful pitch. I got two quick outs, and instead of making a pitch down, I tried to get ahead in the count," Werner lamented.
Black was tempted enough to let Werner start the seventh inning, allowing him to hit in the top of the inning of a tied game. Werner reached base on his first Major League hit, a clean single to center field. Werner then raced to second base on pinch-hitter Logan Forsythe's infield single.
But when the Dodgers made a pitching change, Black decided to let another pitcher -- Clayton Richard, who is regarded as the best athlete on the pitching staff -- pinch-run for Werner with Headley due up.
"Chase has been red-hot and if he gets a hit and we don't score, that would have been a tough one to live with," Black said.
Headley, who hit a two-run home run off Dodgers starter Joe Blanton in the first inning, singled to center field to allow Richard to score for a 3-2 lead.
Headley, who had a career-best six RBIs on Sunday, drove in all three of the Padres' runs to give him 92 RBIs this season. He has 16 of his 24 home runs and 49 of those 92 RBIs in the second half of the season.
The Padres (62-74), who had a season-high 20 hits in Sunday's loss, had 10 on Monday and were 2-for-10 with runners in scoring position. All told, eight players had hits in the game.
The first two hitters of the fourth inning reached base against Blanton, but he was able to wiggle out of the jam. Blanton allowed three runs on seven hits in 6 2/3 innings.
The Padres had two on with one out in the 10th inning but Dodgers reliever Brandon League (1-6) got Chris Denorfia to bounce into a double play to end the inning.