Draft and minor leagues (2009–12) The
Colorado Rockies selected Arenado in the second round with the 59th overall selection of the
2009 MLB draft. Rather than attend ASU, he signed with the Rockies, and made his professional
baseball debut with the
Casper Ghosts of the
Rookie-level Pioneer League, where he batted .300. He was highly acclaimed as a
hitter, less so as a defender. While playing for the
Modesto Nuts of the High-A
California League, he began working harder on his defense. While he had previously demonstrated exceptional arm strength and soft hands, they were neutralized by his inept footwork. Arenado later recalled that he "had really bad feet," and "was too lazy," for which Modesto
manager Jerry Weinstein relentlessly scolded him. He tasked Arenado to take ground balls earlier than the other players and to move rapidly and precisely and maintain readiness at third base. In addition, Arenado began lifting weights in earnest while pushing himself to improve. The work ultimately gave him a combination of explosive vigor, ingenuity, and finesse that allowed him to cover large areas and make good long and short throws from postures ranging from upright to nearly laying down. Along with
Wilin Rosario, Arenado represented the Rockies at the 2011
All-Star Futures Game. His first-half totals included a .283 batting average with six home runs and 42 RBI. He finished the season with a .298 batting average and 20 home runs, leading the minor leagues with 122 RBI. In 163 games combined in the California League and AFL in 2011, Arenado batted .315 with 201 base hits, 155 RBI, 26 home runs and 44 doubles. Playing for the
Tulsa Drillers of the Double-A
Texas League in 2012, he was again named to appear in the All-Star Futures Game. Arenado finished the year with a .285 batting average, 12 home runs, and 56 RBI. Through April 28, he batted .364, 1.059
on-base plus slugging percentage (OPS), three home runs, and 21 RBI with Colorado Springs. At that point, Colorado promoted him to the
major league club, and designated
Chris Nelson for assignment to make room on the
roster. Arenado went 0-for-3 in his MLB debut against the
Arizona Diamondbacks at
Chase Field. He recorded his first three MLB hits in his second game—including his first MLB home run off of pitcher
Josh Wall—in a 12–2 win versus the
Los Angeles Dodgers. In his sixth game, he hit his first major league
grand slam and second career home run off
Tampa Bay Rays pitcher
David Price. Arenado's defensive dominance translated smoothly to the major leagues, as
ESPN.com published on September 7 that he would have ranked second for a hypothetical
National League (NL) Defensive MVP Award. He trailed only
shortstop Andrelton Simmons for the league lead in
Defensive Runs Saved (DRS), 38–30. He appeared in 133 major league games and slashed .267/.301/.405 with 10 home runs and 52 RBI. Defensively, he led NL third basemen in
range factor both per game (3.08) and per nine innings (3.24), and was second in
putouts (91),
assists (309) and
double plays turned (tied with two others with 27). On October 29, 2013, Arenado became the first NL rookie to win a
Rawlings Gold Glove Award at
third base, and the first in both major leagues since
Frank Malzone won in the
American League in
1957. Arenado tied for seventh place with
Evan Gattis in the NL
Rookie of the Year Award voting which was won by
José Fernández with Arenado receiving the most votes as a third baseman. On May 8, Arenado hit safely in his 28th consecutive game to break the Rockies' franchise
hit streak record, which
Michael Cuddyer set the previous season. On May 23, Arenado suffered a
mallet fracture of his left middle finger on a headfirst slide into second base in a game against the
Atlanta Braves, and was subsequently placed on the 15-day
disabled list (DL). Arenado missed 37 games due to the fracture and returned on June 28. He earned his first career NL
Player of the Week Award for the week ending August 24. He batted .545 with a 1.645 OPS and 12 hits, three doubles, one triple, two home runs, three RBI, and six runs scored. Due to a chest
contusion and early onset
pneumonia, Arenado missed additional time at the end of the season. On the year, he batted .287/.328/.500, hitting 18 home runs and driving in 61 runs. He won his second Gold Glove Award despite playing in just 111 games.
2015 In
2015, Arenado earned his second NL Player of the Week Award on June 28, hitting a major league-leading three multi-home runs games in six games, seven home runs and 14 RBI. He also scored 10 times, second-highest in the major leagues. He became an MLB
All-Star for the first time as a National League reserve at
Great American Ball Park in
Cincinnati. At the time his selection was announced, he was fifth in the majors in home runs with 24 and led in RBI with 68. He had hit more home runs in road games than at
Coors Field (15 to nine), more RBI (37 to 31) and posted higher on-base (.318 to .309) and slugging (.615 to .580) percentages. Playing against the
San Francisco Giants on September 5, Arenado homered in his sixth consecutive game, breaking the Rockies' team record of five which
Dante Bichette and
Larry Walker shared. He won his first NL
Player of the Month award in September, batting .339 and leading the major leagues with 11 home runs, 32 RBI, and 79
total bases. He collected an NL-leading 38 hits and was second in the league with .705 SLG. For the 2015 season, Arenado tied
Bryce Harper for the NL
home run title with 42, and
led the National League with 130 RBI and 354 total bases. In addition, he batted .287 with a .323 OBP, .575 SLG, .898 OPS, 43 doubles, and 11 sacrifice flies (leading the majors) on his way to winning his first
Silver Slugger Award for
third basemen. He was the first Rockies player to lead the NL in home runs since Walker hit 49 in
1997 and the first to lead the majors in RBI since
Andrés Galarraga with 150 in
1996. Additionally, Arenado set a major league record for
extra base hits by a third baseman in one season with 89, surpassing
Chipper Jones' total of 87 in
1999. and, for the first time, was the major league-wide winner among third basemen for both the
Fielding Bible and the
Wilson Defensive Player of the Year Awards. He became the second Rockies player to win the Fielding Bible at any position, following shortstop
Troy Tulowitzki. He received official consideration for the
NL MVP Award for the first time, ranking eighth in voting behind Harper,
Paul Goldschmidt,
Joey Votto,
Anthony Rizzo,
Andrew McCutchen,
Jake Arrieta, and
Zack Greinke.
2016 . Arenado and the Rockies avoided salary
arbitration on January 15,
2016, agreeing to a one-year, $5 million contract, a raise from $512,000 in 2015. He was named NL co-Player of the Week with Harper for April 18 after leading the NL with four home runs and 12 RBI. He also carried an .852 SLG, led the NL with 23 total bases, and tied for second with seven runs scored. Arenado made his second
All-Star Game, played at
Petco Park in
San Diego. He hit his 100th career home run on August 8, making him the youngest player in franchise history to do so, at just under age 25 years and four months. In September Arenado became the second player aged 25 and younger within the previous 75 seasons to drive in 125 runs in successive seasons. Overall, in 160 games, Arenado finished the year tied with
Chris Carter for the National League at a batting average of .294, 182 hits, 35 doubles, 116 runs scored, an MLB-leading 133 RBI, 82 extra base hits, 68 walks (double the number from 2015), a .362 OBP, a .570 SLG and a .932 OPS. Arenado won his fourth consecutive Gold Glove at the third base position, becoming the first third baseman in MLB history to win four Gold Gloves in his first four seasons, as well as his second Silver Slugger, Fielding Bible and Wilson Defensive Player of the Year Awards. He also became the first player in Rockies history to lead the Majors in RBIs in two separate seasons. Arenado finished in fifth place in the NL MVP Award voting behind
Kris Bryant,
Daniel Murphy,
Corey Seager and Rizzo, receiving almost double the number of vote points as he had gotten the year before (199 points in 2016 vs. 102 in 2015).
2017 Before spring training, on January 13,
2017, Arenado and the Rockies avoided arbitration for the second straight year by agreeing to a two-year, $29.5 million contract. He received $11,750,000 for 2017 followed by $17,750,000 during the 2018 season. On June 18, he
hit for the cycle against the
San Francisco Giants. The home run was a
walk-off hit off
closer Mark Melancon, finishing off a 7−5 Rockies win. It was just the sixth time in MLB history that a hitter completed the cycle with a walk-off home run; Arenado's teammate
Carlos González was the previous to do so, on July 31,
2010. The 288th cycle in MLB history, Arenado's was the eighth by a Rockies player, and the 17th overall at Coors Field. During the June 28 game against the Giants, he knocked down a line drive batted by pitcher
Ty Blach as he was facing third base, spun on his stomach, and, without getting up on his feet, threw out Blach at first base. For the first time in his career, Arenado was selected to start in the
MLB All-Star Game, played at
Marlins Park in
Miami, after receiving the most fan votes of all National League third baseman. His third overall selection, Arenado batted sixth and collected two singles in two at bats. Arenado set career-highs with three home runs and five hits, while tying a career-high seven RBI in an 18–4 rout of the
San Diego Padres on July 19. He tied the franchise record held by
Jeff Cirillo and
Todd Walker for the number of total bases in a single game with 14, and became the first player in Rockies history to reach both three home runs and five hits in a single game. He also became the first player in the majors to reach 80 RBI. Named Player of the Week for the fourth time of his career on July 23, Arenado hit .458/.480/1.000 with four home runs and 13 RBI in five games. He later won the Player of the Month Award for July, his second monthly award, after hitting .389/.423/.744 with eight home runs, 35 hits, 15 extra base hits, 30 RBIs and 18 runs scored in 22 games. With a two-run home run versus
José Ureña of the
Miami Marlins on August 11, Arenado became the first major leaguer of 2017 to reach 100 RBI for the third year in a row, doing so in 112 games. He had batted .441 and 77 RBI with runners in
scoring position (RISP) in those 112 games. He was ejected by
umpire Pat Hoberg from the August 12 game in the seventh inning versus Miami for throwing his bat. Arenado's batting turn was up in the ninth inning, before Miami prevailed, 4–3. A pitch from
Vance Worley on August 14 hit him on the left hand. An
X-ray revealed no fractures, and he was ruled to miss the DL, but swelling resulted. On September 16 versus the Padres, Arenado drove in his 125th run of the season, becoming the first third baseman and first Rockies player to do so in three consecutive seasons. Later that September, he became the 11th player and 1st third baseman in major league history to drive in 130 or more runs in three consecutive seasons. Making his first
postseason appearance in the
NL Wild Card Game, Arenado went 1-for-5 with a home run and two runs scored as the Rockies lost to the Diamondbacks 11–8 at Chase Field, ending their season. Arenado finished the season with a .309 batting average, 187 hits, 43 doubles, seven triples, 37 home runs (tied for third most in the league with teammate
Charlie Blackmon and Miami's
Marcell Ozuna), and 130 RBI. The RBI total was second to
Giancarlo Stanton for the major league lead by two, resulting in Arenado just missing leading the majors for a third consecutive season. He also scored 100 runs, produced 87 extra base hits, 355 total bases, 62 walks, nine intentional walks, three stolen bases, .373 OBP, .586 SLG and .959 OPS over 159 games. He established or tied career highs in batting average, hits, doubles, triples, total bases, stolen bases, OBP, SLG and OPS. End of campaign awards for Arenado included a selection as the third baseman of
Baseball America's All-MLB Team and third successive Silver Slugger Award. He was the
Players Choice for the Majestic Athletic Always Game Award, identifying "the player who constantly exhibits grit, tenacity, perseverance and hustle on and off the field, all for the benefit of his teammates and fans." Arenado was awarded his fifth straight Gold Glove Award, making him the first infielder to achieve this in each of his first five seasons in the major leagues. Only
Ichiro Suzuki, as a
right fielder, won more consecutive Gold Gloves to start his career (10). Arenado won his first
Platinum Glove Award as the finest defensive member of all the National League, and a third succedent promotion of both the Fielding Bible and Wilson Defensive Player of the Year Awards for third base. He clinched fourth place in the NL MVP voting—the highest ranking of his career—behind Stanton, Votto and Goldschmidt, and ahead of fifth-place Blackmon.
2018 |left Prior to the
2018 season,
Sports Illustrated ranked Arenado as the eighth top overall player, and the "best defensive infielder in baseball. Third base is the deepest position in baseball today, but none can quite do what Arenado can." The Rockies and he agreed to defer contract extension negotiations until after the season. On April 11,
San Diego Padres pitcher
Luis Perdomo threw a pitch behind Arenado, who
charged the mound and incited a
bench-clearing brawl. Two days later, the league suspended Arenado and Perdomo for five games. In his first game back, Arenado hit his 150th career home run versus
Kyle Hendricks in a 16−5 loss to the
Chicago Cubs. After homering and collecting at least two hits in each of four consecutive games, Arenado was named NL Player of the Week on June 25. His aggregate included .379/.419/.955 with five home runs, two doubles, seven runs scored, and 13 RBI. After producing a first half batting .305, 22 home runs and 63 RBI, Arenado was voted to start the
2018 MLB All-Star Game for the second year in a row, and fourth selection overall. He finished his 2018 campaign slashing .297/.374/.561 with 38 home runs and 110 RBIs in 156 games, while also scoring 104 runs and notching 175 hits, 38 doubles, a career-high 73 walks, 331 total bases, 78 extra base hits, a .935 OPS, and a career-high 133 OPS+. After the season, he won his sixth consecutive Gold Glove and fourth consecutive Silver Slugger. He also won his second consecutive
Rawlings Platinum Glove Award On May 25, he hit his 200th career home run, a three-run go-ahead shot, against the
Baltimore Orioles. He was selected by fan vote to start in the
MLB All-Star Game at third base for the National League, hosted in
Cleveland. Arenado finished the 2019 season hitting .315/.379/.583 in 154 games and making just nine errors, setting new career-highs in batting average, OBP, fielding percentage (.980), fWAR (5.9), bWAR (6.7), and on-base plus slugging (.962). He also ranked third in the National League in hits (185) and total bases (343), fourth in RBIs (118), and fifth in home runs (41), runs scored (104), batting average, slugging percentage and OPS. He also won his seventh straight Gold Glove Award and his third straight Platinum Glove Award and finished sixth in the MVP voting.
2020 During the offseason, it was reported that Arenado was unhappy in Colorado and had requested a trade, stating "there's a lot of disrespect from people there that I don't want to be a part of." General manager
Jeff Bridich claimed that "we have listened to teams regarding Nolan and really nothing has come of it" and Arenado remained with Colorado for the 2020 season. In the
pandemic-shortened 2020 season, Arenado batted .253/.303/.434 with eight home runs and 26 RBIs in 48 games. He won his eighth consecutive Gold Glove Award at third base, tying
Scott Rolen for the third-most Gold Gloves at the position.
St. Louis Cardinals (2021–2025) 2021 On February 1, 2021, the
St. Louis Cardinals acquired Arenado from the Rockies along with $51 million in exchange for
Austin Gomber,
Mateo Gil,
Tony Locey,
Elehuris Montero, and Jake Sommers. Arenado hit his first home run as a Cardinal on March 29 at
Great American Ball Park in a 9–6 loss to the
Cincinnati Reds. He hit his first home run at
Busch Stadium as a Cardinal in the team's home opener on April 8, a go-ahead two-run homer in a game in which the Cardinals won 3–1 over the
Milwaukee Brewers. Arenado was named the National League's starting third baseman at the
2021 Major League Baseball All-Star Game in
Denver. Arenado finished the 2021 season batting .255/.312/.494 with 34 home runs and 105 RBIs. Defensively, he led National League third basemen in putouts (125), double plays (38), and
range factor per game (2.66). He won the
Gold Glove Award at third base, one of five Cardinals to win that year, an MLB record. His ninth consecutive Gold Glove tied him with
Mike Schmidt for the most consecutive awards by a National League third baseman. After the season, Arenado could have opted out of his contract with the Cardinals and become a free agent, but chose to remain with the club.
2022 in 2022 On April 27, 2022, Arenado was ejected for inciting a bench-clearing brawl against the
New York Mets after yelling at
Yoan López for throwing near his head, assuming the throw was retaliation for the Cardinals having hit three Mets batters the night before. Arenado received a two-game suspension for the incident, but the suspension was reduced to one game after an appeal. He was named April Player of the Month for the National League after having batted .375 with five home runs, 17 RBIs, 12 extra-base hits and a league-leading 1.125 OPS. He was the first Cardinals third baseman to win the award since
Ken Reitz in May of
1977. Arenado struggled mightily in May, batting .196 during the month. He was able to turn it around in the following months of June and July, batting .309 with 10 home runs and 28 runs batted in. On July 1, 2022, Arenado hit for his second career cycle in a 5–3 loss to the
Philadelphia Phillies at
Citizens Bank Park. He hit an RBI triple in the first inning, a two-run homer in the third inning, doubled in the sixth, and in the ninth, singled on a hard-hit grounder that caromed off third baseman
Matt Vierling's glove. It was the 17th cycle in Cardinals history. The following game, Arenado hit the first of four consecutive home runs on July 2, 2022, the 11th such occurrence in major league history. Teammates
Nolan Gorman,
Juan Yepez and
Dylan Carlson each followed suit off starter
Kyle Gibson with two outs in the first inning. It was the first time that the Cardinals had accomplished the feat, and the first time that it occurred in the first inning. Arenado later won the game for St. Louis in the ninth inning with his second home run of the game, 7–6, which was also the 5,000th at bat of his career. Arenado was selected to represent the Cardinals at the
All-Star Game in
Los Angeles. On July 24, it was announced that Arenado, along with teammate
Paul Goldschmidt, would not be allowed to travel with the Cardinals to Toronto for a scheduled series against the
Blue Jays, due to his lack of a
COVID-19 vaccination. Arenado was named NL Player of the Month for August. During the month, he batted a .364 average with 9 home runs and 29 runs batted in. His performance lead St. Louis to a 22–7 record in August. Arenado finished the 2022 season batting .293/.358/.533 with 30 home runs and 103 RBIs, making it seven seasons with 30+ home runs and 100+ runs batted in in his 10-year career. He had the lowest ground ball percentage of all major leaguers (29.7%). Defensively, Arenado led all third basemen with an
ultimate zone rating of 13. He was awarded his tenth consecutive Gold Glove Award, tying with
Ichiro Suzuki for the most consecutive Gold Gloves to start a career. He was named a finalist for the
National League Most Valuable Player Award alongside teammate and eventual winner
Paul Goldschmidt and
Manny Machado. Arenado was awarded the Rawling Platinum Glove for the 6th consecutive year, as well as his 5th Silver Slugger.
2023 On October 29, 2022, Arenado informed the Cardinals that he would again not opt out of his contract, ensuring he will remain under contract with St. Louis through the 2027 season. On April 8, 2023, Arenado hit his 300th career home run against
Brewers pitcher
Eric Lauer. He was named an All-Star for the eighth time and finished the season with a .266 average, 26 home runs, and 93 RBI.
2024 Arenado played in 152 games in 2024, though his season was marred by various injuries. His power production declined, as he finished with 16 home runs, his fewest in a full season since his rookie year. He did not make the All-Star Game for the first time since 2014, though he still finished with a .272 average.
2025 On June 19, 2025, Arenado hit his 350th career home run against the
Chicago White Sox off White Sox pitcher
Mike Vasil in the second game of a doubleheader. He became the sixth active player to reach 350 home runs and become the 7th player to hit 350 home runs while also earning at least 10 Gold Gloves, joining
Johnny Bench,
Mike Schmidt,
Willie Mays,
Ken Griffey Jr.,
Andruw Jones, and
Al Kaline. Arenado made 107 total appearances for St. Louis during the regular season, slashing .237/.289/.377 with 12 home runs and 52 RBI.
Arizona Diamondbacks (2026–present) On January 13, 2026, the
Arizona Diamondbacks acquired Arenado from the Cardinals along with $31 million for RHP Jack Martinez, who was an 8th round draft pick in the
2025 MLB draft. ==International career==