10 MLB Hitting Prospects With Standout Data In June

Konnor Griffin, SS, Pirates

There’s a case to be made that Griffin is having the best season among any prospect in the first half of 2025. After putting together a .338/.396/.536 line over 50 games with Low-A Bradenton. Griffin was promoted to High-A Greensboro on June 10 and has dominated since. 

Throughout June, Griffin has been one of baseball’s top performers. He’s hit .392/.484/.582 while walking 12.6% of the time. His strikeout rate plummeted to 14.7%. His improving plate skills over the course of the spring are a reason to buy into Griffin’s ability to adjust on the fly.

While the plate skills and declining strikeout rate are exciting developments, Griffin’s power and speed combination remains a calling card. Over the course of the month, Griffin has nine extra-base hits while stealing 11 bases. A 70-grade runner with the ability to develop into 70-grade game power at peak, Griffin looks like he’s growing into becoming one of the best young hitters in baseball.

Kevin McGonigle, SS, Tigers

After a right ankle injury sidelined McGonigle for nearly all of April and the early part of May, the shortstop has been on fire since returning and continued to assert himself as one of the minors’ premier young hitters. Over 18 June games, McGonigle has hit .351/.424/.689 with 10 doubles and five home runs. 

McGonigle, despite his smaller stature, has shown himself to be a powder keg with the ability to explode on any mistake left over the heart of the zone. Few players boast the sort of preternatural bat-to-ball skills that McGonigle does. On the season, he has a 7.3% swinging-strike rate while showing a good balance of patience and aggression with a 44.8% swing rate. 

Tigers fans have been clamoring for a promotion to Double-A for McGonigle and teammate Max Clark. The pair are arguably the most talented teammates in the minor leagues now that Roman Anthony and Marcelo Mayer are in the major leagues with the Red Sox. McGonigle has an outside chance to hit his way into the number No. 1 spot on the Baseball America Top 100 Prospects list by the end of 2025. 

Max Anderson, 2B, Tigers

Taken by the Tigers out of Nebraska in the second round of the 2023 draft, Anderson has enjoyed an outstanding 2025 season to date. Over 59 games with Double-A Erie, he’s hit .351/.394/.596 with a 183 wRC+, which places him among the elite performers in the minor leagues this season.

In the month of June, Anderson has hit .378/.427/.683 with an 11.2% strikeout rate and 6.7% walk rate. Anderson is an aggressive hitter, as shown by his 55.6% swing rate this season, but he’s able to make it work due to above-average bat-to-ball skills and power at the point of contact. Whether his over-aggressive approach catches up to him eventually is something to keep an eye on.

Regardless of how his approach plays at higher levels, there’s no denying that Anderson is a tough out who makes the most of his contact. Over the course of June, he’s connected for 12 extra-base hits and consistently found the barrel.

Michael Arroyo, 2B, Mariners

A Colombian baseball hero, Arroyo is one of the premier hitting prospects in a loaded Mariners system. Over 65 games with High-A Everett, Arroyo hit .269/.422/.512 before earning promotion to Double-A on June 23. He is a bat-first prospect with questionable defense at second base, adding pressure on his bat to carry his profile.

In the month of June, though, his bat did just that. Over 20 games this month, Arroyo has hit .319/.462/.667 with a 14.3% walk rate and 15.4% strikeout rate. He’s also hit seven home runs in June, posting a .347 isolated slugging. 

Arroyo shows some swing-and-miss, as evidenced by a 10.8% swinging-strike rate and 24.1% whiff rate. However, he balances his approach well, as he’s neither passive or overly aggressive, which limits his exposure to those swing-and-miss tendencies. Arroyo will be challenged by the promotion to Double-A, where his plate skills will be put to the test in the Texas League. 

Carson Williams, SS, Rays 

One of the streakier hitters in the minors, Williams posted a .564 OPS in April followed by a .632 OPS in May. After two terrible months, Williams got his footing in June and has produced a 1.087 OPS over 18 games. Contact has been a bugaboo for Williams, as he’s ran a 62.5% contact rate and 35.2% strikeout rate this season.

Many of those metrics improved in June, however, as Williams hit .310/.410/.634 while running a 29.8% strikeout rate. Williams shows strong on-base skills without being overly passive. He walked 10.7% of the time in June and could potentially improve that number by being a tad more selective. Williams’ power is his selling point at the plate. In June, he slugged six home runs, three doubles and a triple. His .324 isolated slugging showcases his ability to slug.

A talented defender with power and speed, Williams’ well below-average hit tool remains a concern. Improvements to his approach and contact skills could provide the foundation for a successful landing in the big leagues. If not, he’s likely to strike out 40% of the time when he debuts. 

Jared Thomas, OF, Rockies 

The Rockies paid Thomas $2 million last July after selecting him in the second round out of Texas. So far this season, he has been one of the most productive players in the minors, hitting .326/.427/.498 over 69 games. His performance has produced a 144 wRC+, making him one of the top hitters in the High-A Northwest League.

In June, Thomas really turned it on, as he’s posted a .369/.448/.607 line over 20 games. He’s displayed strong plate skills, as well, walking in 10.6% of his plate appearances while striking out just 17.7% of the time. Thomas has a good, balanced approach, logging a 44.1% swing rate while showing the ability to discern balls and strikes. His 11.6% swinging-strike rate shows there is some swing-and-miss, but Thomas balances it with solid swing decisions.

Thomas is likely a corner outfield profile long term, though in 2025, he’s split time between center and left field. His bat will likely have to carry his profile as he ascends to major leagues. Thomas’ combination of solid bat-to-ball skills, power and approach will serve him well as he sees higher levels. 

Cristian Arguelles, OF, Rockies

No player in the Dominican Summer League stood out in the first month of play like Arguelles. One of the Rockies’ top international signings in 2025, Arguelles inked for $700,000 out of Venezuela. After hitting .267/.352/.302 over 50 games last season in the DSL, he returned to begin 2025. 

Over the month of June, Arguelles has shown improved power and angles on contact. His line-drive rate climbed from 22.8% in 2024 to 36.4% to begin this season. He’s also shrunk his groundball rate from 44.3% last year to just 30.9% in 2025. Arguelles has displayed excellent plate skills, walking in 12.5% of his plate appearances while striking out in 8.8%.

Over the opening month of DSL play, Arguelles has hit .477/.544/.754 with six doubles, three triples and two home runs across 17 games. His 218 wRC+ is the second best in the league and the best for a player under 18 years old. 

Arguelles still has much to prove once he comes stateside, but his early returns in 2025 show a player coming into his own. His impressive plate skills and improving game power are major reasons Arguelles is trending upward after the first month of DSL play. 

Pedro Ramirez, 2B/3B, Cubs

Over the last few seasons, Ramirez has been one of the more underrated performers in the minor leagues. Signed out of Venezuela in January 2021, Ramirez has produced an above-average or better statistical line at each stop along his minor league journey. In 2025, Ramirez is getting his first taste of Double-A and has been impressive, hitting .306/.364/.442 over his first 69 games. 

In the month of June, Ramirez took things up a notch. Over 20 games this month, he’s hit .341/.391/.622 with a 12.0% strikeout rate to a 8.7% walk rate. Not known for his power exploits, he’s posted a .224 isolated slugging while hitting four home runs, four doubles and a triple. Ramirez has split time between third and second base this year, where he’s an average to potentially above-average defender, providing some defensive versatility. 

While versatility and improving power are elements to appreciate about Ramirez’s profile, his plate skills are his carrying tools. His 6% swinging strike rate as a 21-year-old in his first taste of Double-A is impressive, and he pairs it with a good balance of patience and approach, avoiding passive at-bats more often than not. 

Colby Thomas, OF, Athletics

Despite excellent production in each of his three professional seasons, Thomas has been a divisive name in scouting circles. The 24-year-old is certainly tooled up—there’s no debating that. He shows above-average or better skills in the field, with solid speed and plus raw power. Thomas currently ranks in the top 10 in home runs in the minor leagues this season with 17, two off the minor league leader, Esmerlyn Valdez. 

In June, Thomas has been excellent, hitting .333/.382/.575 with a 22.3% strikeout rate and 5.8% walk rate. Known for his slugging prowess, Thomas hit five home runs with six doubles while logging a .241 isolated slugging rate. Despite Thomas’ aggressive approach, his quality of contact allows what is, at times, an over-zealous approach to work. 

Thomas’ swing rate is high at 54.1%, but with a chase rate of 34.2%, there’s a reasonable gap between the two, highlighting his 77.3% zone-swing rate. In this way, Thomas doesn’t swing himself into as many outs as his lower walk rate might suggest. His 14.3% swinging-strike rate is high and likely a product of his 46.1% out-of-zone contact rate. How long Thomas can make this style of hitting work is up for some debate, but he’s shown very strong underlying power data with the tools to make it a well-rounded enough profile to earn MLB time. 

Maxton Martin, OF, Rangers

An 11th-round pick out of the Washington state prep ranks, Martin spent parts of two seasons on the Arizona Complex. In 2025, he saw his first taste of full-season ball, breaking camp with Low-A Hickory. Over 64 games this season, Martin has hit .273/.338/.462 while striking out in 21.8% of plate appearances and walking in 8.2%. He’s shown solid power output, fringe-average plate skills and an ability to hit the ball in the air to his pull side. 

In the month of June, Martin has hit .301/.396/.566 with a 11.5% walk rate and 17.7% strikeout rate. He”s shown good power output with a .265 isolated slugging, eight doubles, a triple and four home runs. He boasts a solid underlying batted-ball profile with a 53.7% line drive-plus-fly ball rate, and he’s also pulled 47.3% of balls in play this year, showing he’s already tapping into pullside power. 

After two seasons on the complex, Martin is thriving in full-season ball. If his hot performance continues into July, he could see promotion to High-A Hub City shortly.