Emmet

It was picture day at Dodger Stadium on Tuesday, one of those quaint baseball traditions that has endured long past its usefulness.

So the team set up three rows of aluminum risers in shallow center field and the players, wearing impossibly white uniforms, filed out of the clubhouse just before 3 p.m., passing up batting practice to pose for the cameras. For a sport that thrives on routine, the afternoon had a unique last-day-of-school vibe.

“It’s a weird day,” manager Dave Roberts agreed.

But picture day also serves to bring the end of the season into tighter focus since it usually happens in the final three weeks. And the players who climb those risers are the ones who will decide the team’s postseason fate.

That was especially true for the Dodgers, who rode another splendid pitching performance — this one from Emmet Sheehan — to a 7-2 victory over the Colorado Rockies. Sheehan, bidding for a spot in the playoff rotation, was backed by four homers, including a pair of solo shots from Teoscar Hernández, who had his first three-hit night in more than a month.

The win, the team’s third in a row, coupled with San Diego’s loss to Cincinnati, expanded the Dodgers’ lead in the National League West to two games over the second-place Padres with just 17 left to play.

“It’s getting down to the wire,” Roberts said.

The Dodgers’ starting pitching is already in postseason form, posting a 1.41 ERA over the past five games. On Tuesday it was Sheehan’s turn on the mound and he set down the first 15 Rockies in order, becoming the third Dodger starter in four games to take a no-hitter into the sixth inning.

He wound up scattering three hits and a walk over seven innings, striking out nine to earn his fourth victory in five decisions. The win was also Sheehan’s fourth victory in as many appearances against Colorado.

Roberts said his team’s starting pitchers are all competing to one-up each other, giving the significance of the games now.

“They’re feeding off one another,” he said. “The pitchers are of the mind that these are very, very important games. It’s kind of the playoff mentality. The catchers are calling games in that vein.

“The defense has been really focused getting off the baseball. There’s a heightened level of focus across the board.”

That even spread to the offense, said Mookie Betts, whose two-run home run in the third extended his streak of reaching base safely to 15 straight games.

Mookie Betts is very happy after his two-run homer in the third inning.

(Gina Ferazzi / Los Angeles Times)

“It’s really neat being on this side,” Betts, who had multiple RBIs for a fourth straight game, said of watching the Dodger pitchers work. “If you kind of take a step back and look at it, there’s a lot of teams that would ask for something like this. Those guys give us opportunity to win every day.

“It’s really important for us as on the offensive side not to take that for granted.”

Although the Dodgers entered Tuesday second to last in the majors with an average of 3.14 runs a game in September, against Colorado starter Germán Márquez (3-13), whose ERA (6.31) looks more like a mortgage rate, they ran out to a 5-0 lead after five innings. As a result the focus turned to Sheehan, who needed just 59 pitches to cruise through five perfect innings, striking out five.

“I probably knew,” Sheehan, pitching on the 60th anniversary of Sandy Koufax’s perfect game, said when asked if he was aware he was more than halfway to matching that. “But I was definitely not thinking about it.”

The right-hander said he tried to cross up the Rockies by moving away from his fastball and going with a slider to the glove side instead.

“I felt like I was executing the slider pretty well,” he said. “The more I throw it, the easier it gets to get it to that spot. It’s an important pitch for me.”

Kyle Karros ended the suspense when he lined Sheehan’s first pitch of the sixth inning over a leaping Max Muncy at third for a single. Two more singles brought Karros around to score, ending the shutout as well.

Still Sheehan (6-3) was more than good enough to win for the fourth time in five decisions, lowering his ERA to 3.32 and forcing his way into the conversation over a role on the postseason roster.

“He’s unflappable,” Roberts said. “He knows he’s talented and he knows how to execute pitches. He’s got good stuff. No moment is too big for him. So I can’t speak to what role, but I know that he’s a viable option for us now and going forward.”

Tuesday’s win also left Sheehan unbeaten on picture day, something he nearly skipped as the scheduled starting pitcher.

“I wasn’t going go out there,” he said. “But I was like, I missed the last two. I gotta be out there.”

After all, it’s a tradition.

The Dodgers continued their season-long celebration of last year’s World Series triumph by handing out championship rings Monday. The 49,702 people who bought tickets got replicas while Gavin Lux, who played for the Dodgers last season and is now with the Cincinnati Reds, got a real one.

If the team hopes to win more jewelry again this fall, the next five weeks will be key. Because after Monday’s 7-0 win over the Reds, the Dodgers lead San Diego by a game in the National League West with just 30 more left in the regular season for both teams.

However, if the Dodgers (75-57) continue to play as they did Monday, when Andy Pages homered twice, driving in four runs, and Emmet Sheehan threw a career-high seven scoreless innings, they’ll be tough to catch.

“The defense was just engaged, every single guy out there. The at-bats, one through nine, were great,” Dodgers manager Dave Roberts said. “It’s probably one of the better games, complete games, that we’ve played in months. I’m really, really excited about the way we played.”

Excited, too, because what started as a marathon six months ago is now a different kind of race.

“We’re in a sprint now,” said Michael Conforto, who had two hits and made two outstanding plays in left field. “We’re in a race for the division.”

And they’re a step ahead in that race with the Padres, who, like the Dodgers, have 10 series remaining, five at home and five on the road. But San Diego has the easier schedule, based on the combined winning percentage of its opponents (.474) entering the week. The Dodgers have the fourth-easiest schedule.

For Roberts, his team’s narrow margin for error is something to be embraced since it has the potential to steel his team for the postseason, as opposed to simply coasting into the playoffs.

“Competition should bring out the best in you,” he said. “So where the margins are smaller and everything matters more versus you have a big lead and you’re not playing with urgency because you don’t need to, and then have to kind of flip the switch, that’s tough.”

The Dodgers also are rapidly adding reinforcements for their playoff push. Over the weekend, relievers Tanner Scott and Kirby Yates returned from the injured list and utility player Kiké Hernández was activated Monday. Third baseman Max Muncy and infielder/outfielder Hyeseong Kim could be back by the next road trip, if not before. Utilityman Tommy Edman and pitcher Roki Sasaki likely aren’t far behind.

Then there’s Sheehan (5-2), who was brilliant Monday, pitching a career-best seven innings and matching a career high with 10 strikeouts to win his third straight decision. Sheehan gave up just two hits and walked one.

“I definitely have to build on it. Try to just keep the same progress we’ve been doing, keep that going for the next one,” Sheehan said. “It’s pretty fun. It’s a lot more fun than watching the ball go over the fence, for sure.”

For Roberts, it’s as if his team acquired a half-dozen new players.

Dodgers shortstop Mookie Betts, left, celebrates with right fielder Teoscar Hernández after hitting a home run in the seventh inning against the Reds on Monday.

(Carlin Stiehl / Los Angeles Times)

“Those are kind of deadline trades in themselves,” he said. “I do appreciate the guys that have been here, kind of grinding through. But it’s nice looking out on the horizon, seeing the guys that we got coming.”

Pages put the Dodgers in front to stay in the third Monday, driving a 102-mph fastball from Hunter Greene into the bullpen in left field. He hit another in the fifth inning for his 23rd homer of the season, second-most on the team behind Shohei Ohtani’s 45.

In the sixth, a double by Freddie Freeman and walks to Will Smith and Teoscar Hernández loaded the bases for Pages, whose two-out grounder to short got under Elly De La Cruz for a two-run error. A Mookie Betts’ homer, his second hit of the game, with one out in the seventh and a Pages’ sacrifice fly in the eighth closed out the scoring.

Relievers Jack Dreyer and Anthony Banda followed Sheehan, pitching an inning each to complete the shutout, the team’s fourth in the last 23 games.

The Dodgers had only three shutouts in the first 109 games.

Now come the reinforcements, although Kiké Hernández said he almost didn’t make it. After going on the injured list July 6 with left elbow inflammation, he tried three injections and non-invasive rehab procedures, but nothing seemed to work.

“I got to a point where I didn’t know if it was going to happen. We were pretty close to it not happening,” he said of his return. “There are some procedures that I went through that didn’t do anything. I went through four shots in a month, and [the] first three didn’t do anything, and luckily the fourth one was the answer.

“After the last shot, I was pain free.”

Hernández said he expected to start in left field Tuesday. He joins the Dodgers just in time for their sprint to the finish.

“It’s playoff-atmosphere games from here on out,” he said. “Hopefully it brings out the best in people and also teaches the younger guys that when the time comes and we’re in October, the moment doesn’t get too big for them.”