As the opening weekend approaches for the 2026 season, many teams have tested their mettle so far and have made an encouraging start to the year.
But not all of those teams had top debuting prospects. Five of MLB's 30 teams had young players performing well in 2026. Here's a look at each one's start to the year:
Munetaka Murakami, Chicago White Sox
Although the White Sox lost to the Milwaukee Brewers this weekend, it wasn't for a lack of effort from Murakami.
The former two-time KBO Central League MVP showed Chicago why they signed him this offseason, hitting a home run in each of his first three games with the club.
More encouraging, however, is that Murakami is taking his walks. He has walked four times in 13 plate appearances, giving him a .538 OBP to start the year.
There was concern about his high strikeout numbers in the KBO, and that's still warranted considering his four strikeouts. But it's safe to say that he has managed to overcome those concerns so far.
Chase Delauter, Cleveland Guardians
Adding another slugger to this group (with a historic four home runs in his first three games), Deloutre spent the opening weekend destroyed Pitching staff of the Seattle Mariners.
Although his series ultimately ended, it still marks an impressive debut that has only been done once more (Trevor Story, 2016).
Through four games, DeLauter has a ridiculous .353/.353/1.059 slash line with an OPS of 1.412. That level of production probably won't continue (and has already dropped off a bit in game four against Seattle), but Cleveland will need him to produce to take the AL Central crown once again.
Kevin McGonigal, Detroit Tigers
McGonigal's lack of slugs so far has separated him from the first two (though not without effort).
After troubling the San Diego Padres' pitching staff with a magical four-hit hit on Opening Day, McGonigle tried to do the same the next evening. In his first at-bat against starter Michael King, he lofted a fly ball to center that was sure to go out...until it didn't.
Padres center fielder Jackson Merrill managed Now! It was blocked, denying McGonigal his first MLB home run.
But McGonigal will have the last laugh. He later had a 10 pitch at-bat against Wendy Peralta that ended with the decisive two-run single. The Tigers would not relinquish the lead after that.
McGonigal began the year ranked second in batting average (.417) and slugging percentage (.583) and third in on-base percentage (.462) among Detroit hitters.
There were concerns about the Tigers' production ability this off-season. They are largely satisfied with the performance of the star newbie in this series.
Owen Casey, Miami Marlins
The only player to have already made his MLB debut, Casey made his Marlins debut this year after being the headliner in the Edward Cabrera trade with the Chicago Cubs.
He promptly rewarded Miami.
In three games, he has gone 5 for 10 with two doubles and a walk-off home run against the Colorado Rockies on Sunday night.
The Marlins are trying to be competitive this year after (surprisingly) missing the playoffs in 2025. With star left fielder Kyle Stowers injured at the beginning of the year, Casey will be confident in his performance.
JJ Weatherholt, St. Louis Cardinals
St. Louis' starting second baseman, Weatherholt made his MLB debut on Opening Day. He had a stellar .308/.333/.538 slash line throughout the weekend and a solid .917 fielding percentage in the infield.
As if his first home run wasn't enough, he hit it alone on Saturday against the Tampa Bay Rays.
After trading away most of their stars this offseason, the Cards are focused on rebuilding. The dominant belief is that they will not be competitive this year. But it will be fun for St. Louis fans to see the young star perform.
