Bryce Harper dug into the batter’s box against San Diego Padres right-hander Tim Stauffer on May 14, 2012. By the time the at-bat was finished, he reached uncharted territory for a teenager suiting up for the Montreal Expos/Washington Nationals by hitting a home run.
For those keeping track at home, Harper’s historic tater came at just 19 years and 211 days old. At that moment, it felt less like a debut for the rookie and more like a declaration of what was ahead for the young outfielder.
Related: A Complete Guide to Single-Season (& Single-Game) HR Performances
Revisiting Bryce Harper’s 1st MLB Home Run
It probably felt like an eternity for Harper to get his first dinger on the books. The Nationals called him up on April 27, and he made his big-league debut on April 28 in Los Angeles against the Dodgers.
Sports Illustrated dubbed him “Baseball’s Chosen One” when he was just 16 years old and put him on the cover, so you can say that expectations were high upon his arrival with the Nats. And while his first few games in the majors went well at the plate, Harper entered Washington’s May 14 game against the Padres with a .231/.317/.346 line.
After getting Harper to ground out in the bottom of the first, the young slugger finally got to Stauffer in the third inning by going dead central for that elusive first homer. This milestone came in Harper’s 17th big-league game, and he became the first teenager to go deep in Expos/Nationals history.
It’s also worth noting that the last time a teenager hit a home run in a big-league game was Adrian Beltre, who also accomplished the feat for the Dodgers as a 19-year-old in 1998.
Harper’s Age-19 Season in Context
What Harper did in 2012 as a teenager is almost unfair to look at because he ended up having an excellent rookie campaign. He slashed .270/.340/.477 with 22 home runs, 26 doubles, 59 RBI, and 98 runs scored across 597 plate appearances. His 5.2 bWAR and 57 total extra-base hits as a rookie are the best marks in a single season by a teenager in the modern era.
Harper’s year also included being named an All-Star for the first time, a 30th-place finish in National League MVP Award voting, and the NL Rookie of the Year Award.
How impressive were those 22 taters he mashed as a rookie? Well, here’s some context: Mickey Mantle hit 13 homers in 96 games in 1951 as a 19-year-old rookie (he’d hit 23 homers in 142 games the following year). Oh, and Ken Griffey Jr. slugged 16 homers across 127 games played during his age-19 campaign in 1989.
From Washington to Philadelphia — and What That Shift Means
Harper spent seven seasons with the Nationals (2012–18) and accomplished quite a bit. He became the youngest player in history to win an MVP Award in 2015, and did so unanimously as a 23-year-old. It was an impressive offensive display, including a .330/.460/.649 line with 42 home runs, 99 RBI, and a 1.109 OPS.
While the Nationals never advanced beyond the NLDS in four postseason appearances, Harper was very much a focal point of the franchise during his time with the club. But then came free agency.
While the Scott Boras client had to wait until 2019 Spring Training started to sign with a club, he cashed in by landing a 13-year, $330 million deal with the Phillies. It was the richest contract in North American sports history at the time (which has since been surpassed multiple times over, most recently by Juan Soto’s $765 million deal with the New York Mets).
And if we’re being honest, Harper has made Philly’s investment quite reasonable. Even if Dave Dombrowski has outwardly questioned his recent production.
Philly hasn’t won the World Series yet with Harper leading the way, but he’s put together an impressive resume in the City of Brotherly Love. He won his second NL MVP in 2021, hitting .309/.429/.615 with 35 homers, 42 doubles, 84 RBI, and 101 runs scored in just 141 games played.
Harper has also been a solid postseason performer for the Phillies, which has included a trip to the 2022 World Series. He won NLCS MVP honors that year after posting a 1.250 OPS in 25 plate appearances and has 12 playoff homers since joining Philly.
Harper has a lot of ties to the Nationals. He’s a former No. 1 overall pick and top minor-league prospect, and he spent the better part of a decade with the club. But he’s had more postseason success with the Phillies and has spent more time there than in DC, so he’s essentially embedded himself in the Phillies’ DNA.
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