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Top 2021 College MLB Draft Prospects

Kumar_Rocker_PeterAikenGetty.jpg
Kumar Rocker (Photo by Peter Aiken/Getty Images)

Baseball America’s 2021 four-year college rankings are compiled in consultation with major league scouts.

The depth of this year’s college class will be artificially inflated thanks to the five-round 2020 draft and the large number of eligible players who were passed over and go back into the mix for 2021. Questions of sample size will be a question for almost every player in the class, as typically most players have two full seasons of college ball in addition to summer history.

With the spring season cut to just four weeks, many scouts don’t believe they have as complete a picture of the class at this point as they typically would, which will increase the importance of any looks teams are able to get over the summer in more regional summer leagues (where they are being played) and during fall ball.

Vanderbilt righthander Kumar Rocker and Jack Leiter top the 2021 college prospects, as both have easy first-round stuff dating back to their prep days and loud collegiate performance despite more limited sample sizes.

Miami catcher Adrian Del Castillo, UCLA shortstop Matt McLain and Florida outfielder Jud Fabian are the top three hitters in the class. All have exciting offensive upside and the potential to stick in premium, up-the-middle defensive positions.

You can see the entire top 100 below, with capsules on the top 10 players in the class.

*We are currently using June 5, 2021 as the date to determine draft age until the official draft date is set.

100 Matches
See Full List Expand Collapse All Updated on: 7/8/2020
  1. 1

    Kumar Rocker

    Vanderbilt RHP
    Notes:

    Ht: 6-4 | Wt: 255 | B-T: R-R
    Commit/Drafted: Rockies '18 (38)
    Age At Draft: 21.6

    Rocker in 2018 became the highest-ranked prep player in the now nine-year history of the BA 500 to make it to college, upholding his commitment to Vanderbilt after being ranked 13th in the draft class. He’s lived up to the hype, and as a freshman in 2019 helped lead Vanderbilt to the national championship, earning both Freshman of the Year and College World Series Most Outstanding Player honors along the way. Listed at 6-foot-4, 255 pounds, he has a big, strong frame, a powerful mid-90s fastball and a well above-average slider.
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  2. 2

    Jack Leiter

    Vanderbilt RHP
    Notes:

    Ht: 6-0 | Wt: 190 | B-T: R-R
    Commit/Drafted: Yankees '19 (20)
    Age At Draft: 21.1

    Leiter, the son of former all-star lefthander Al Leiter, was the highest-ranked player on the 2019 BA 500 to get to college at No. 21. He barely got his college career underway before the season was cancelled, but had already impressed, striking out 22 batters in 15.2 innings. Leiter, a draft-eligible redshirt freshman, is a bit undersized at a listed 6-foot, 195 pounds, but he offers a well-polished, three-pitch arsenal. His fastball sits in the low 90s and reaches the mid 90s to go with a good changeup and curveball.
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  3. 3
    Notes:

    Ht: 5-11 | Wt: 208 | B-T: L-R
    Commit/Drafted: White Sox '18 (36)
    Age At Draft: 21.7

    Del Castillo has been a force at the plate since arriving at Miami and is a career .349 hitter. The lefthanded batter also gets to his above-average power well in games. There are questions about his defense, however. He was mostly an outfielder as a freshman and his arm is fringy for a catcher.
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  4. 4

    Matt McLain

    UCLA SS/OF
    Notes:

    Ht: 5-11 | Wt: 170 | B-T: R-R
    Commit/Drafted: Diamondbacks '18 (1)
    Age At Draft: 21.8

    The D-backs drafted McLain 25th overall in 2018, but he upheld his commitment to UCLA. After a tough freshman spring at the plate, he got on track in the Cape Cod League and carried that momentum into his sophomore season. McLain has good feel at the plate and more power than his 5-foot-11 frame suggests. He’s played all over the diamond defensively, but as an average runner with good hands, he has a real shot to stick at shortstop.
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  5. 5
    Notes:

    Ht: 6-2 | Wt: 195 | B-T: R-L
    Commit/Drafted: Never Drafted
    Age At Draft: 20.7

    Fabian graduated high school a semester early and enrolled at Florida in January 2019, immediately stepping into the Gators lineup in center field. He held his own as a freshman and was on his way to a breakout sophomore season in 2020. He has a smooth swing, produces lots of loud contact and has the speed and arm strength to stick in center field.
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  6. 6

    Jaden Hill

    Louisiana State RHP
    Notes:

    Ht: 6-4 | Wt: 233 | B-T: R-R
    Commit/Drafted: Cardinals '18 (38)
    Age At Draft: 21.5

    Hill headlined LSU’s top-ranked 2018 recruiting class but lost most of his freshman season to an elbow strain. He impressed in his return to action in 2019, striking out 17 batters in 11 innings. Listed at 6-foot-4, 233 pounds, he has a strong, physical frame and a powerful arsenal. His fastball can reach 98 mph, he has a hard, biting slider in the mid 80s and will mix in a changeup. His biggest knock is that he hasn’t yet proven himself as a starter over a full season, but his upside is immense.
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  7. 7

    Colton Cowser

    Sam Houston State OF
    Video
    Notes:

    Ht: 6-3 | Wt: 195 | B-T: L-R
    Commit/Drafted: Never Drafted
    Age At Draft: 21.2

    After a Freshman All-American season, Cowser impressed with USA Baseball’s Collegiate National Team, establishing himself early as one of the class’ top hitters. The lefthanded batter is disciplined with a loose swing and the promise of more power in his 6-foot-3, 195-pound frame. Cowser profiles well as a corner outfielder.
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  8. 8

    Steven Hajjar

    Michigan LHP
    Notes:

    Ht: 6-5 | Wt: 215 | B-T: R-L
    Commit/Drafted: Brewers '18 (21)
    Age At Draft: 20.8

    Hajjar missed the 2019 season after he tore his ACL while playing pickup basketball, but bounced back stronger than ever in 2020. Listed at 6-foot-5, 215 pounds, his fastball sits in the low 90s and he mixes in a sharp slider and changeup. While he hasn’t had the chance to show what he can do over a full season, the early returns were encouraging and his upside is significant.
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  9. 9

    Alex Binelas

    Louisville INF
    Notes:

    Ht: 6-3 | Wt: 210 | B-T: L-R
    Commit/Drafted: Nationals '18 (35)
    Age At Draft: 21.0

    Binelas was one of the best freshman hitters in the country in 2019, as he hit .307/.396/.651 with 14 home runs. But a broken hamate bone on Opening Weekend in 2020 sidelined him during the abbreviated spring. The lefthanded hitter has plus power and profiles well at third base.
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  10. 10

    Ethan Wilson

    South Alabama OF
    Notes:

    Ht: 6-2 | Wt: 210 | B-T: L-L
    Commit/Drafted: Never Drafted
    Age At Draft: 21.6

    Wilson flew under the radar in high school but a strong freshman season that saw him hit .345/.453/.686 with 17 home runs changed that in a hurry. The lefthanded hitter has an exciting all-around tool set and does a good job of making lots of hard contact. He’s a plus runner and should be able to stay in center field.
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  11. 11

    Gunnar Hoglund

    Mississippi RHP
    Video
    Notes:

    Ht: 6-4 | Wt: 220 | B-T: L-R
    Commit/Drafted: Pirates '18 (36)
    Age At Draft: 21.5

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  12. 12

    Robby Martin

    Florida State OF
    Notes:

    Ht: 6-3 | Wt: 210 | B-T: L-R
    Commit/Drafted: Marlins '18 (37)
    Age At Draft: 21.8

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  13. 13

    Henry Davis

    Louisville C
    Notes:

    Ht: 6-2 | Wt: 195 | B-T: R-R
    Commit/Drafted: Never Drafted
    Age At Draft: 21.7

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  14. 14
    Notes:

    Ht: 5-11 | Wt: 185 | B-T: R-R
    Commit/Drafted: Never Drafted
    Age At Draft: 21.5

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  15. 15

    Ty Madden

    Texas RHP
    Notes:

    Ht: 6-3 | Wt: 215 | B-T: R-R
    Commit/Drafted: Royals '18 (34)
    Age At Draft: 21.3

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  16. 16

    Levi Usher

    Louisville OF
    Notes:

    Ht: 6-0 | Wt: 210 | B-T: L-R
    Commit/Drafted: Angels '19 (37)
    Age At Draft: 21.0

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  17. 17

    Sal Frelick

    Boston College OF
    Notes:

    Ht: 5-9 | Wt: 175 | B-T: L-R
    Commit/Drafted: Never Drafted
    Age At Draft: 21.1

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  18. 18

    Mike Vasil

    Virginia RHP
    Notes:

    Ht: 6-4 | Wt: 225 | B-T: L-R
    Commit/Drafted: Never Drafted
    Age At Draft: 21.2

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  19. 19

    Cody Morissette

    Boston College SS
    Notes:

    Ht: 6-0 | Wt: 175 | B-T: L-R
    Commit/Drafted: Never Drafted
    Age At Draft: 21.4

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  20. 20

    Jonathan Cannon

    Georgia RHP
    Notes:

    Ht: 6-6 | Wt: 207 | B-T: R-R
    Commit/Drafted: Never Drafted
    Age At Draft: 20.9

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  21. 21

    Christian MacLeod

    Mississippi State LHP
    Notes:

    Ht: 6-4 | Wt: 227 | B-T: L-L
    Commit/Drafted: Never Drafted
    Age At Draft: 21.2

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  22. 22

    Seth Lonsway

    Ohio State LHP
    Notes:

    Ht: 6-3 | Wt: 200 | B-T: L-L
    Commit/Drafted: Reds '17 (19)
    Age At Draft: 22.7

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  23. 23
    Notes:

    Ht: 6-7 | Wt: 225 | B-T: R-R
    Commit/Drafted: Reds '17 (12)
    Age At Draft: 22.6

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  24. 24

    Kevin Abel

    Oregon State RHP
    Notes:

    Ht: 6-2 | Wt: 195 | B-T: R-R
    Commit/Drafted: Padres '17 (35)
    Age At Draft: 22.3

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  25. 25

    Landon Marceaux

    Louisiana State RHP
    Notes:

    Ht: 6-0 | Wt: 177 | B-T: R-R
    Commit/Drafted: Yankees '18 (37)
    Age At Draft: 21.7

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