MLB Opening Day is a big deal for any player fortunate enough to find themselves in the lineup or on the mound, but it’s all the more special for those making their major-league debuts. And if there was one theme that emerged over the course of the first full day of 2026 regular-season action, it was a series of notable swings delivered by a selection of rookies making their presence felt in the majors right away.
Here’s a look at five of the most memorable debut performances from Opening Day.
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Carson Benge, Mets right fielder
A pair of Oneil Cruz defensive blunders in center field enabled the Mets to send Paul Skenes packing before he completed the first inning, with five runs scored in the opening frame of the season. But the Mets did not just capitalize on Pirates miscues en route to their 11-7 victory. The most memorable hit of their opener came courtesy of rookie right fielder Carson Benge.
After striking out in his first two career plate appearances, Benge drew an eight-pitch walk to reach base for the first time as a big leaguer. Then, facing Pittsburgh reliever Justin Lawrence in the sixth, Benge pounced on a first-pitch sweeper and sent it soaring over the right field-fence for his first career hit and first career home run.
In a New York lineup loaded with fresh faces following a busy winter of transactional activity, the 23-year-old Benge stands out as one of the few homegrown projected regulars, alongside Brett Baty and catcher Francisco Alvarez. His rapid ascent through the minors since being selected 19th overall out of Oklahoma State in 2024 has been impressive, to say the least, and his Opening Day swat following a stellar spring training immediately validated the Mets’ confidence in giving him the keys in right field right out of the gate.
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Scouts adore Benge’s offensive skill set, and though he posted just a .583 OPS in 24 Triple-A games to finish last season, his underlying metrics were terrific, lending optimism that he was ready for the big leagues to begin 2026. Benge batted eighth in his debut, but don’t be surprised if he climbs his way up manager Carlos Mendoza’s lineup as the season rolls along.
JJ Wetherholt, Cardinals second baseman
The Rays and Cardinals engaged in a rollicking roller coaster of an opener Thursday afternoon at Busch Stadium, combining for 16 runs on 31 hits, with the home team hanging on for a 9-7 victory. The chaos crescendoed in a wild sixth inning, in which Tampa Bay scored six runs to jump to a 7-1 lead in the top half before St. Louis responded with a whopping eight runs to retake the lead in the bottom half.
The Cardinals’ rally that inning included a bases-loaded sacrifice fly from rookie JJ Wetherholt that pushed right fielder Jonny DeLuca to the warning track, sparking momentary thoughts that the top prospect had launched a grand slam in his debut. Not so, but Wetherholt had already delighted the home crowd with his first career home run three innings earlier, when he smoked an 0-2 fastball from Rays right-hander Drew Rasmussen 425 feet to center field for the Cardinals’ first run of the season.
Wetherholt was almost certainly ready to make his debut in September, but St. Louis opted to stay patient amid a lost season, saving its top prospect for Opening Day 2026. His sweet swing to start the scoring in the opener ensured his introduction to the majors was worth the wait.
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Even on a Cardinals club in something of a transition season, Wetherholt’s advanced bat and prominent placement atop St. Louis’ lineup should have him firmly in the mix for NL Rookie of the Year honors. The Cardinals’ scouting brass were elated when Wetherholt fell to them at pick No. 7 in the 2024 draft at the outset of a rebuilding period for the franchise, and now he’s primed to be one of the most important players in St. Louis’ effort to return to contention in the coming years.
Munetaka Murakami, White Sox first baseman
The White Sox appeared to get off to a promising start to the season when second baseman Chase Meidroth torched a 99.5-mph fastball from Jacob Misiorowski for a leadoff home run, but Misiorowski locked it in from that point on, and things unraveled on the mound for Chicago en route to a blowout 14-2 defeat.
However, the South Siders did not leave their opener empty-handed, as Japanese slugger Munetaka Murakami clobbered his first career MLB home run in the ninth inning, a modest consolation prize in an otherwise lopsided contest.
The pitch, a 90.5-mph cutter right down the middle, and the pitcher, Jake Woodford, the lowest-leverage arm on Milwaukee’s staff, who was acquired from Tampa Bay earlier this week, weren’t much to write home about. But for a player as hyped and divisive as Murakami is entering his rookie season, any signs of progress toward his becoming a quality big-league bat are notable, and this blast was an encouraging introduction.
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It was an uneven spring training for Murakami, with him departing midway through to compete with Team Japan in the World Baseball Classic, so we’re still in the early stages of gauging his comfort against major-league arms. But for a hitter who comes with sizable swing-and-miss concerns, it was nice to see Murakami avoid striking out in his debut; he drew two six-pitch walks against Misiorowski (who piled up a Brewers-record 11 punchouts) before grounding out in the seventh.
Of course, Murakami will need to do a lot more than hit garbage-time homers to quiet the industry-wide skepticism that led to his less-lucrative-than-expected contract with Chicago, but it was good to see the guy known for his prolific power send one over the fence in his first MLB game.
Justin Crawford, Phillies center fielder
After spending all of last season in Triple-A, 22-year-old Justin Crawford arrived in spring training as the clear favorite to take over in center field in Philadelphia, marking a rare vote of confidence in a rookie from a franchise that has leaned almost exclusively on veterans in recent years. The son of four-time All-Star outfielder Carl Crawford, Justin has been a polarizing prospect since he was selected 17th overall out of a Nevada high school in 2022, as his proclivity to hit a ton of ground balls has led to doubts that he can be a quality hitter at the highest level.
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But his knack for contact and his blazing speed enabled a stellar slash line in the minors (.322/.385/.446) and made the Phillies believe he could contribute in 2026 as a bottom-of-the-order speedster. Sure enough, Crawford wasted no time making a difference Thursday in his major-league debut. In the second inning, he swatted a first-pitch fastball from Nathan Eovaldi up the middle for his first career hit. Hit No. 2 came a few innings later, when Crawford stayed back on an Eovaldi splitter and smacked a single up the middle.
Unlike some of the other top rookies this season, who will be leaned on as central figures in their teams’ run-production efforts, Crawford shouldn’t need to shoulder that kind of burden. Anything he can give Philadelphia with the bat at the bottom of the lineup will be gravy, as his youth and athleticism already give the Phillies an element they’ve largely lacked in recent seasons.
Should Crawford develop into even a moderately dangerous hitter, he would make this offense all the more daunting for opposing pitchers, considering the talent stacked at the top of the lineup eager to hit with the speedy Crawford on base. However he develops, Crawford can take comfort in having gotten his first couple of hits out of the way right away.
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Kevin McGonigle, Tigers third baseman
Unlike the four other rookies highlighted above, who arrived in spring training with unobstructed paths to the Opening Day roster, Kevin McGonigle had to definitively earn his place on the Tigers, even if he is the most promising overall prospect of the bunch.
And that’s exactly what McGonigle did with his Grapefruit League performance, bashing his way into Detroit’s Opening Day lineup and instantly changing the complexion of the Tigers’ offense with a historic performance in his first career game. The 21-year-old infielder became just the 21st player since 1900 to collect four hits in his MLB debut, and he’s the fourth-youngest of that cohort.
It takes a lot to steal the show from ace Tarik Skubal in a Tigers victory, but McGonigle most definitely did that with his immediate impact with the bat. Like Crawford, he didn’t bother to settle into his first big-league plate appearance, jumping on a first-pitch cutter from San Diego right-hander Nick Pivetta for a two-RBI double in the top of the first. A more methodical, six-pitch battle with Pivetta in the third ended with another two-bagger, this one a rocket off the top of the right-field wall. In the fifth, McGonigle beat out an infield hit with elite sprint speed. After popping out in the seventh to ruin his perfect day at the plate, he got right back in the hit column in the ninth with a single to right field off lefty Wandy Peralta.
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It was a downright brilliant debut for one of the most polished hitting prospects we’ve seen in quite some time, and it’s hard to not get excited about how much McGonigle could elevate Detroit’s offensive ceiling, even as a rookie. Since his high school days, scouting reports have revered McGonigle’s hit tool as special. It didn’t take long for Tigers fans to see why.
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