Houston Astros (2014–2020)
Springer made his MLB debut on April 16, 2014, at Minute Maid Park against the Kansas City Royals. Batting second and playing right field, Springer collected his first career hit, an infield single, against Royals pitcher Jeremy Guthrie. Springer hit the first home run of his MLB career on May 8, 2014, at Comerica Park off Detroit Tigers pitcher Drew Smyly. On June 26, Springer hit his 15th home run, becoming the first Astros rookie to reach that mark before the All-Star break. On July 23, 2014, Springer was placed on the 15-day disabled list due to a left quad strain. On September 16, the Astros announced Springer would not play for the remainder of the 2014 season. He played in 78 games in 2014, batting .231 with 20 home runs, 51 runs batted in (RBIs), and 114 strikeouts.
During a game against the Texas Rangers on April 12, 2015, Springer robbed Leonys Martín of a potential game-winning grand slam by making a leaping catch by the wall in the 10th inning at Globe Life Field. The Astros defeated the Texas Rangers, 6–4, in 14 innings. On June 10 versus the Chicago White Sox, Springer attained his first career five-hit game, the first for an Astro since Brandon Barnes on July 19, 2013, who hit for the cycle on that day. Springer, along with Jose Altuve, rookie Carlos Correa, and Dallas Keuchel, became a key figure in that year's Astros playoff run, qualifying for the first time in 10 years. They defeated the New York Yankees in the American League Wild Card Game. In the American League Division Series (ALDS), Houston faced the eventual World Series-champion Royals, who won the series, 3 games to 2. During that series, the Astros took and lost the lead in each of the 5 games.
After consistently cutting down on his strikeout rate from his rookie year, Springer improved the quality of his at bats enough in 2016, that by May, the Astros made him their regular leadoff hitter. He led the American League with 744 plate appearances, playing in all 162 regular season games. He set new career highs with 116 runs scored, 29 home runs, and 88 walks. The Astros finished 84–78, ranking in third place in the AL West and missing the playoffs.
After spending the first three seasons of his career in right field, the Astros shifted Springer to center field in 2017. He was selected as the American League Player of the Week for the first time in June. He also made his first MLB All-Star team played at Marlins Park in Miami, elected by the fans as a starter. Typically the Astros' leadoff hitter, he batted cleanup for the American League lineup, as was the decision of former Astros manager Brad Mills, the AL manager. The Astros took a 60–29 record into the All-Star break, the best 89-game start in franchise history.
On July 28, Springer was placed on the 10-day disabled list due to left quad discomfort. On September 29, prior to a game against the Boston Red Sox at Fenway Park, Springer met and reunited with his first-grade teacher. Springer finished 2017 by playing 140 games with a .283 batting average, 34 home runs, and 85 RBI.
With the Astros finishing the season 101–61, the team clinched the AL West division. The Astros advanced to the World Series to face the Los Angeles Dodgers. Springer struck out four times in Game 1. In Game 2, he, along with two Astros teammates–Carlos Correa and Jose Altuve—and two Dodgers players–Charlie Culberson and Yasiel Puig—all homered in extra innings as the Astros prevailed, 7–6. The five home runs accounted for the most hits in extra innings of any single game in major league history.
In the Astros' 5–1 Game 7 Series-clinching victory, he homered and doubled, finishing with two runs and two RBI. In all, Springer hit five home runs, tying the World Series record shared by Reggie Jackson and Chase Utley. He also homered in each of the final four games, setting a World Series record for consecutive games with a home run. Springer was named the World Series Most Valuable Player (MVP), going 11 for 29 with 7 RBI as the Astros' leadoff hitter. Other World Series records he set were eight extra base hits (five homers and three doubles) and 29 total bases. As a side note, he had appeared on a 2014 cover of Sports Illustrated that predicted the Astros' 2017 World Series win.
After the season, Springer was named an American League Silver Slugger Award winner at outfield for the first time in his career.
Two years later, it was revealed in the Houston Astros sign stealing scandal that the Astros had broken MLB rules during their championship season. Sign-stealing had occurred throughout major league baseball, but the Astros, who had conspired within their organization to steal signs using cameras and other electronic means, were the first known example of such an elaborate and coordinated method of cheating. The team was punished with a $5 million fine and the loss of top draft picks in 2020 and 2021. When asked whether he knew what he and his teammates were doing – illegally using technology to steal opposing catchers' signs – was wrong, Springer claimed that the clubhouse is a sacred place where "what happens in our clubhouse will stay in our clubhouse." Springer later expressed remorse and regret over the sign stealing scandal.
On the Astros' Opening Day at Globe Life Park in Arlington, Springer led off with a home run against Texas Rangers pitcher Cole Hamels, becoming the first MLB player to lead off with a home run in consecutive Opening Days. He had homered off Mariners pitcher Felix Hernandez in the first inning of Opening Day 2017 at Minute Maid Park.
Springer made his second All-Star appearance in as many seasons, joining five other Astros players and manager A. J. Hinch on the American League All-Star team. Springer went back-to-back with teammate Alex Bregman and hit what would be the deciding home run in the top of the 10th inning at Nationals Park to help lead the American League to an 8–6 victory.
On August 5, Springer sprained his left thumb sliding into second base on a stolen base attempt in a game against the Los Angeles Dodgers and was placed on the 10-Day Disabled List. The Astros struggled through August with injuries to Springer, Carlos Correa, and Jose Altuve keeping them out of the lineup. Springer returned to action on August 17 and the Astros held off the charging Oakland A's to win their second straight American League West Division title. Springer finished the season with 22 home runs, 71 RBIs, and batting .265/.346/.434.
Springer started the 2018 postseason off on a strong note, hitting a home run off of Corey Kluber in Game 1 of the 2018 American League Division Series. It was Springer's fifth home run in as many postseason games, tying him with Carlos Beltrán for the club record of consecutive postseason games with a home run. Springer had hit a home run in games 4–7 of the 2017 World Series. Springer then hit two more in Game 3 of the ALDS off of Mike Clevinger and Cody Allen respectively, leading the Astros to an 11–3 victory and a series sweep of the Cleveland Indians. With his home runs in Game 3, Springer became the all-time Astros leader in postseason home runs with 10, again passing Beltrán's 8 from 2004.
On March 28, 2019, Springer tied with Khris Davis of the Oakland Athletics for consecutive Opening Day home runs with three, when he hit a 427-foot (130 m) home run to center field off of reigning Cy Young award winner Blake Snell. On May 1, Major League Baseball disciplined Springer for an anti-gay slur directed at umpire Ángel Hernández, which was caught on camera during a game on April 23. On May 25, Springer was placed on the 10-day IL with a Grade 2 left hamstring strain.
Carrying a .316 batting average, 1.046 OPS, and 18 home runs through June 28, Springer was named a starting outfielder for American League in the All-Star Game.
In 2019, Springer batted .292/.383/.591 with 39 home runs (fifth in the AL) and 96 RBI in 479 at bats over 122 games. His adjusted OPS+ was 150, ranking fourth. He placed in the top ten in the league in several categories for the first time. Those included wins above replacement (WAR, 6.4–10th), OBP (eighth), slugging percentage (fourth), OPS (fourth), offensive win percentage (.713, fourth), and at bats per home run (12.3, fourth). On defense, he was second among all outfielders in total zone runs (19), second among center fielders (eight), and third among right fielders (10).
In 2020, Springer batted .265/.359/.540 with 37 runs, 14 home runs (7th in the AL), 32 RBIs, and hit by pitch five times (tied for eighth in the AL) in 189 at bats.