2024 Dynasty Baseball Top 10 Third Base Prospects

by Mike Schneider
2024 Dynasty Baseball Top 10 Third Base Prospects

Here are my 2024 Dynasty Baseball Top 10 Third Base Prospects plus one.  I cannot count very well and wrote up an extra profile.

You can check out all the prospect top 10 lists by following the links in the table below.

2024 Prospect Top 10 Lists

One of the more difficult parts of writing a prospect list by position is determining which position each prospect should be listed at. Some prospects may play third base in the minors but they will not play much at third in the majors.  Other prospects will start their major league career at third base but as they get older they move down the defensive spectrum.  Some prospects are playing exclusively shortstop in the minors who could move to third base in the majors.

I included prospects who primarily played third base in 2023.  Several players on this list are bat-first prospects who will eventually move to different positions.

Before we get into the top third basemen, don't forget to take a look at other prospect rankings listed in our 500+ dynasty baseball rankings, along with our full prospect and FYPD rankings.

2024 Dynasty Baseball Top 10 Third Base Prospects

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No. 11: Sal Stewart, Cincinnati Reds

Sal Stewart was the 32nd overall pick in the 2022 draft out of high school in Miami. Stewart had a solid season in his first full pro season last year as a 19-year-old.

Stewart spent the majority of the year at Single-A Daytona Beach before getting promoted to High-A Dayton for the last month of the season. Over his last 50 games at Daytona Beach, Stewart had a 163 wRC+ with a .316/.439/.547 line with nine homers and 15 doubles.  In 29 games at Dayton, Stewart was impressive with a 127 wRC+ and 13.7% strikeout and walk rate. In 2023 Stewart walked 84 times and struck out 77 times.

Stewart is listed at 6'3" and 225 pounds. There is some concern that he may outgrow third base at some point.  The Reds infield is crowded so there is a chance that Stewart is dealt for major league pitching but things may be different by the time he is major league ready.  Stewart has a nice hit tool and is strong enough to develop above-average in-game power.

No. 10: Deyvison De Los Santos, Cleveland Guardians

The Diamondbacks signed Deyvison De Los Santos to a $200,000 bonus in 2019 as an international free agent from the Dominican Republic.

Since the minor league season was canceled in 2020, De Los Santos did not make his pro debut until 2021 right after turning 18.  In 25 games in the Arizona Complex League, he had a 162 wRC+ with five homers.  De Los Santos earned a quick promotion to Full season A where he held his own.

In 2022 De Los Santos hit 22 homers with a .847 OPS across three levels ending the season with 10 games at AA as a teenager. De Los Santos returned to AA Amarillo in 2023.  It was a tale of two seasons. Through June 30th, De Los Santos had a 53 wRC+ and a .269 on-base percentage.  The Diamondbacks assigned De Los Santos to the Development List for a couple of weeks and he was a different play went he returned.  Over the remaining 50 games, De Los Santos had 13 homers and 27 extra-base hits with a .914 OPS.

With a deep team and a talented farm system, Arizona could not protect De Los Santos in the Rule V draft.  De Los Santos was selected by the Guardians who must keep him in the majors for the entire 2024 season or he could go back to the Diamondbacks.  He is unlikely to play much if he is in Cleveland all year which would not be good for his development.

De Los Santos does have a ways to go defensively and with pitch selection.  He had a 5.2% walk rate in 2023.

No. 9: Sterlin Thompson, Colorado Rockies

After a huge year in 2022 at the University of Florida where he had a 1.006 OPS, the Rockies selected Thompson as an outfielder with the 31st overall pick.  However, as a pro Thompson has transitioned to the dirt playing mostly third base.

The lefthanded-hitting Thompson has an excellent year with the bat in 2023.  He missed all of May with an injury.  However, in 60 games at High A Spokane, Thompson had a .323/.399/.520 line with seven homers, 22 doubles, and 14 stolen bases.  He was promoted to AA Hartford for the final 34 games of the year, where he seven homers with a 111 wRC+. He finished the year in the Arizona Fall League where he had a .338/.450/.475 line.

It remains to be seen where Thompson will end up defensively but the bat is solid and he will benefit from playing in Coors Field. Thompson is someone who could make his major league debut in 2024.

No. 8: Justyn-Henry Malloy, Detroit Tigers

Given that he began 2023 in AAA, had a strong year and the Tigers struggled, it was surprising that  Malloy was never called up to the majors. However, I expect Malloy will get an opportunity in 2024.

Malloy began his college career at Vanderbilt where he saw limited playing time in 2019 and 2020.  He transferred to Georgia Tech and had a big year in 2021.  The Braves selected Malloy in the sixth round.  He had a solid 2022 season with a .408 on-base percentage across three levels finishing with eight games in AAA.

In the offseason, Malloy was traded to the Tigers in the  Joe Jiménez deal.  He had a big start to 2023 with a .344/..474/.527 lime in the first 26 games.  Malloy then slumped over his next 38 games with a .197 average and a 76 wRC+.  Then over the last 71 games he had a 19.9% walk rate with a .298/.445/.520 line.  On the year Malloy had 23 homers and 110 walks in 135 games.

Defensively it is unclear if Malloy will stick at third base.  Malloy played a lot of corner outfield when Colt Keith was promoted to AAA at the end of June. However, with Matt Vierling expected to begin 2024 as the Tigers' third basemen, Malloy may get an opportunity at third this year.

No. 7: Curtis Mead, Tampa Rays

There have been several major league players from Australia over the last twenty years.  Except for Liam Hendricks and briefly Grant Balfour,  not many of been standouts, and most have been pitchers.

The Phillies signed Curtis Mead before his 18th birthday to a $200,000 signing bonus. Mead had a nice year in the Gulf Coast League in 2019 with a .813 OPS but the Phillies traded him after the season to the Rays for Cristopher Sanchez.

After minor league play resumed in 2021 Mead made his full-season debut and had a big year at Single-A Charleston and High-A Bowling Green. After the regular season, Mead continued to impress in the Arizona Fall League against older players.

Mead has continued to hit the last two years in the upper minors but missed part of both seasons due to injuries.  For the first time, Mead was called up to the majors in August and got 92 plate appearances with a 95 wRC+ in sporadic playing time.

Mead is average at best defensively. He has played more third base than second base.  Mead has a strong hit tool but has limited speed. How much the power develops will go a long way in determining how much of an impact Mead makes. With Junior Caminero and Isaac Paredes, playing time may be tough to get on the Rays.

No. 6:  Tyler Black, Milwaukee Brewers

Tyler Black is yet another player with intriguing offensive skills and defensive question marks.

The lefthanded-hitting Black is originally from Canada.  He played in college at Wright State where he had a monster year in 2021 with 13 homers and a .383/.496/.684 line in 48 games.  The Brewers selected Black with the 33rd overall pick in the 2021 draft.

Black was limited to 64 games in 2022 due to a broken scapula.  He spent the year at High A Wisconsin where he was solid with a .830 OPS.

Before 2023 Black never stole more than 13 bases in a season in college or the pros.  Last year at AA Biloxi and AAA Nashville Black stole 55 bases in 67 attempts. At every level as a pro, Black has had a walk rate that exceeded 15%.  The speed and patience make Black an ideal leadoff hitter.

Before 2023 Black primarily played second base with some work in the outfield particularly in the Arizona Fall League in 2022. Last year Black played mostly third base.

The Brewers appear to be moving in the direction of a rebuild and it may be a good opportunity for Black to get a regular role soon.

No. 5: Orelvis Martinez, Toronto Blue Jays

Orelvis Martinez seems like he has been around forever but 2023 was his age 21 year.  Martinez received the biggest signing bonus ($3.51 million) in the 2018-2019 international free agent class.

In 2019 Martinez skipped the Dominican Summer League and played in the Gulf Coast League (GCL).  He hit seven homers in 40 games.  The only player in the GCL who hit more homers that year was Kerry Carpenter who is more than four years older than Martinez.

After minor league baseball returned in 2021, Martinez began the year at Single-A Dunedin. After a solid start to the season, Martinez took it to another level in July when he hit 13 homers. Martinez was promoted to High A Vancouver on August 2nd.

Despite the limited time at High A, at age 20, Martinez spent the entire 2022 season at AA New Hampshire. Martinez hit 30 homers in 118 games but hit only .203 with a 28.5% strikeout rate and an 8.1% walks rate.

Last year Martinez returned to AA New Hampshire.  On the surface, Martinez got off to an awful start.  In 22 games, Martinez had a .089 batting average but his BABAP was .055.  Over the next 48 games, Martinez hit 13 homers with a 170 wRC+. During this stretch, Martinez had an 18.% strikeout rate and a 16.3% walk rate.

Martinez was promoted to AAA Buffalo on July 17th. Martinez has had a solid stretch at AAA.  In 55 games Martinez had  11 homers with a .263/.340/.501 line with a 26.84% strikeout rate and a 10.6% walk rate.

In 2023 Martinez has played second base, shortstop, and third base. He is probably not a shortstop at the major league level. Martinez has the range and skill to play third base and appears to be the prototypical power-hitting third baseman. The Jays are currently very thin at both second and third base so with a hot start, Martinez could get a chance in 2024.  He may struggle initially but he has shown the ability to get better.

No. 4: Colt Keith, Detroit Tigers

The Tigers selected Colt Keith with their last pick in the five-round 2020 draft. He was considered a prospect as both a pitcher and a hitter but was drafted as a third baseman.

A couple of injuries limited the number of games that Keith has played in his first two years as a pro, but Keith has always hit. In 2021 Keith had a 142 wRC+ in 44 games at Single-A Lakeland earning a late-season promotion to High A West Michigan despite just turning 20 years old.

In 2022, Keith had a 150 wRC+ in 48 games but suffered a shoulder injury on June 9th and missed the remainder of the season.  Keith did return for the Arizona Fall League where he was one of the youngest and most impressive players. In 19 games, Keith hit .344/.463/.541 with three homers.

Last year the lefthanded-hitting Keith was healthy all year and split the year between AA Erie and AAA Toledo. Before getting promoted on June 26th, Keith had a 29-game stretch where he had a 213 wRC+ with nine homers and a 1.166 OPS. In 67 games at AAA Keith had a .287/.369/.521 line with a 19.3% strikeout rate and an 11.6% walk rate. He did not turn 22 until August.

After playing third base primarily at AA, Keith split his time between second and third base at AAA.  In addition to Keith the Tigers have a nice third base prospect in Justyn-Henry Malloy who was discussed above and Jace Jung their 2022 first-round pick who has primarily played second base as a pro.  Keith is likely too big to play second base at the major league level and is likely to eventually outgrow third base as well.

With a full season already in the upper minors, Keith could be in line for an early season promotion in 2024.

 No 3: Brock Wilken, Milwaukee Brewers

The Brewers selected Brock Wilken with their first-round pick in 2023 (18th overall).  At Wake Forest, Wilken was the all-time ACC homer run leader with  71 homers in just 173 college games. Last year Wilken hit 31 homers in 66 games with a .506 on-base percentage. Since 2003 only Jac Caglianone has hit more homers in a college season.

As a pro, after seven games in the Arizona Complex League Wilken played 34 games at High A Wisconsin and six games at AA Biloxi.  Wilken was sold with a .887 OPS but only had five homers, He did have a 16.3% walk rate with a 23. 2% strikeout rate.

Wilken is listed at 6'4" and 225 pounds.  At third base, he has a big arm and is adequate for now. He will likely move to first base at some point in the future.

Wilken has a chance to be an elite power hitter whose bat will find a way into the lineup.

No 2:  Coby Mayo, Baltimore Orioles

Coby Mayo went to Marjory Stoneman Douglas High School in Parkland Florida where he survived the school shooting on February 14, 2018, that killed seventeen people. He has been outspoken about the impact that the shooting had on him.

The Orioles selected him in the fourth round of the 2020 draft and signed him to a bonus over three times the slot amount.

In 2021 Mayo began his pro career in the Florida Complex League where he was outstanding in 26 games with a 165 wRC+. Mayo earned a promotion to Single-A Delmarva for the last month of the season. Despite being just 19, Mayo excelled in his first exposure to full-season ball with five homers in 27 games and a .437 wOBA.

The Orioles were aggressive with Mayo's assignment last year in his age-20 season.  He began the year at High A Aberdeen where he had a .251/.326/ .494 line with 14 homers in 68 games. The Orioles promoted Mayo to AA Bowie on June 28th.  Mayo spent about a month on the injured list.  He played 34 games at AA where he had a 102 wRC+ but struck out 34.5% of the time.

Mayo returned to AA this year.  He got off to a solid start in his first 35 games with a .861 OPS.  However, beginning on May 20th, Mayo played 44 games at AA and had  34 extra-base hits including 13 homers with a .445 on-base percentage and a 206 wRC+.  Mayo was promoted to AAA Norfolk on July 14th. On the year Mayo has a strikeout rate of 24.% and a walk rate of 14.7%.

Listed at 6'5" and 230 lbs, Mayo is fine at third base now with a strong arm.  However, he likely will eventually outgrow third base and move to first base.  In addition, the Orioles are loaded with infield prospects and it is unclear how this will shake out.  Regardless, Mayo is a prototypical power hitter and his bat is strong enough to play at first base.

No. 1: Junior Caminero, Tampa Rays

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Junior Caminero was not a headliner in Cleveland's 2019 international free agent class. However, Caminero had a strong year in the 2021 Dominican Summer League with a 144 wRC+ as a 17-year-old.

After the 2021 season, the Rays had a 40-man roster crunch and did not have room to put RHP Tobias Myers on their 40-man roster. Rather than expose him to the Rule V draft, the Rays traded Myers to the Guardians for Junior Caminero.  Ironically due to the MLB lockout, the Rule V draft ended up being canceled for the 2021-2022 off-season. This trade could go down as historically bad for the Guardians.

In his first season in the Rays organization, Caminero had a strong year in 2022. In 36 games in the Florida Complex League, Caminero hit .326/.403/.492 with five homers and seven stolen bases.

More impressively, the Rays promoted Caminero to Single-A Charleston for the season's last month. Caminero did not miss a beat Caminero is with a 137 wRC+ in 26 games with six homes and five steals in 26 games. On the year, Caminero has a strikeout rate of just 15.9% with a walk rate of 8.5%.

The Rays continue to be aggressive with Caminero assigning him to High A Bowling Green to begin 2023 despite not turning 20 until July. Caminero destroyed High A pitching with 11 homers and a 190 wRC+ in 36 games.  Caminero was promoted to AA Montgomery on May 30th. In 81 games at AA, Caminero hit 20 homers and had a 140 wRC+.

Caminero spent some time in the majors at the end of the year and figures to play quite a bit in the time with the Rays in 2024.

Caminero is an adequate defender at third base and should stick there for at least several years. He even played a bit of shortstop at AA. He is one of the best-hitting prospects to come along in recent years.

2024 Prospect Top 10 Lists

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