Coby Mayo Stats & Scouting Report — College Baseball, MLB Draft, Prospects

AB	65
AVG	.369
OBP	.417
SLG	.692
HR	5

Full name Coby Gerald Mayo
Born 12/10/2001 in Coral Springs, FL
Profile Ht.: 6'5" / Wt.: 230 / Bats: R / Throws: R
School Stoneman Douglas
Drafted in the 4th round (103rd overall) by the Baltimore Orioles in 2020 (signed for $1,750,000).

View Draft Report

Mayo is a big, physical third baseman with a 6-foot-5, 215-pound frame and raw power and arm strength to match it. He also has a solid track record of hitting against some of the better pitchers in the 2020 class, with solid zone recognition and a mature approach at the plate. Mayo has tinkered a bit with his setup. Last summer he shifted his weight significantly back on his right foot, which put him in inconsistent launch positions and hurt his rhythm, but he’s since gone back to a 50-50 weight split. He still is more herky jerky in the box than fluid, and scouts wonder if that will prevent him from consistently tapping into his plus raw power despite a solid eye. He’s an obvious swing-change candidate if he gets to pro ball, but he does have solid contact ability. Defensively, Mayo has one of the strongest arms in the 2020 class, an easy plus cannon with tremendous carry. He’ll need to improve both his footwork and hands to stick at the position though, particularly when major league third basemen are required to handle more ground in a heavily shifted era. His raw tools and physicality are among the loudest in the 2020 prep class, but he could be a tough sign away from Florida. If he gets to campus in Gainesville he could tremendously improve his draft stock by tapping into his power against SEC competition.

Top Rankings

Organization Prospect Rankings

BA Grade: 60/High

Track Record: Signed for $1.75 million as one of the top raw power hitters in the 2020 draft, Mayo enjoyed his first full, healthy professional season in 2023 and made tremendous strides at age-advanced levels. He was named Eastern League MVP despite spending just half the season in the league, batting .307 with a 1.026 OPS and 17 home runs at the level. He excelled as his time at Triple-A Norfolk went on, ending the year with a system-high 29 home runs, 99 RBIs and a .974 OPS. Among 21-and-under hitters, only Junior Caminero and Abimelec Ortiz outpaced Mayo for homers.

Scouting Report: Mayo has always boasted plus-plus power, but continued refinement in his swing and plate discipline allowed him to better get to his raw power and dominate the high minors. He cut down on his strikeouts while increasing his walk rate from 9.1% to 15.1%, closing some holes on the outer half with his swing while maintaining his slug and making more consistent hard contact. Mayo cut his chase rate from 27% to 23%, while his hard-hit rate jumped from 31% to 46%. He’s still at his best crushing mistakes and turning on inside pitches, but he showed improved adjustability in his swing and can be an average hitter at his peak. Mayo is athletic for someone his size, and while he boasts a plus-plus arm, he may never be better than average at third base and could move off of the position for first base or a corner outfield given the Orioles’ infield depth.

The Future: Mayo represents one of the most improved Orioles’ hitting prospects over the years, as well as one of their highest-upside young players. He can be a first-division regular on his bat alone, though there will be more pressure on it if he’s not playing third base. Mayo seems set for more Triple-A time to begin 2024 before pushing for a major league debut around midseason.

Scouting Grades Hit: 50 | Power: 70 | Run: 45 | Field: 50 | Arm: 70
BA Grade/Risk: 50/High

Track Record: Mayo was the first of two significantly over-slot high school draftees for the Orioles from the 2020 draft. He signed for $1.75 million in the fourth round thanks to his impressive raw power. As a professional, Mayo has been assigned aggressively and reached Double-A Bowie at 20 years old. Back spasms forced him to miss some time upon arriving there, but the slugging righthanded hitter finished well after a slow start and his expected stats paint a more optimistic picture of his season than his actual ones.

Scouting Report: Mayo's carrying tool is his plus-plus raw power, and his ability to turn on inside pitches while driving balls over the heart of the plate gives him significant in-game power potential. Upper-minors pitchers exposed his issues with outer-third channeling and spin away, but the Orioles feel another offseason of adding strength can help Mayo control his body and the moving parts of his aggressive swing better to be more adjustable to those pitches and cover more of the plate. He might only be an average hitter and needs to control his bat path to keep the ball elevated to maximize the contact he does make. If he does so, his game power can flourish. Defensively, Mayo's peers may save the Orioles from having to make a call on him staying at third base. He could be fringe-average there and has a plus arm that fits at the position, but the expectation that the 6-foot-5 third baseman gets bigger could make him better suited for first base or a corner outfield spot.

The Future: Mayo didn't have the breakout season expected of him in 2022. Still, holding his own as a 20-year-old in Double-A was a sign there's still plenty to dream on. This is a big winter for Mayo, who with the right training and adjustments could break out on his way to becoming a first-division regular.

Scouting Grades: Hitting: 50. Power: 60. Speed: 45. Fielding: 45. Arm: 60.
Track Record: Prolific raw power as an amateur was the principal reason the Orioles signed Mayo for $1.75 million—more than $1 million above slot—in the five-round 2020 draft. Still, it would take work to translate that power into games, and Mayo ultimately did that after a spring training knee injury kept him back from a full-season affiliate. Once games began in the Florida Complex League, Mayo dominated and continued his rise with a month at Low-A Delmarva to end the year.

Scouting Report: Mayo used his time in extended spring training to improve his movement patterns and rotation to better allow him to get to his plus power in games and hit the ball in the air more consistently. His base is presently more stable than when he was an amateur. While tall, Mayo is athletic, allowing him to have a clean swing and catch the ball out front often. By combining the newfound loft in his swing with his natural strength, Mayo is hitting fewer ground balls and thus finding more hits when he stays in the park. He could be an average hitter as he continues to hone his approach, and his ability to control the strike zone and cut down on chase rate while still hitting for power in his debut season impressed the Orioles. Mayo could easily outgrow third base, but has a chance to be average there, with his plus arm an asset at the position.

The Future: Mayo doesn’t have much pro experience, but has the makings of a middle-of-the-lineup, everyday third baseman after how he finished 2021. He could be back at Delmarva for 2022, and is a few years away from the majors, but he features some of the system’s best offensive upside.
TRACK RECORD: A Florida commit from the same high school as Cubs star Anthony Rizzo, Mayo showed prodigious power both on the showcase circuit and against good prep competition in games. The Orioles drafted him in the fourth round and signed him for $1.75 million, more than $1 million over slot. Mayo got his first taste of professional baseball in instructional league.

SCOUTING REPORT: Mayo boasts plus-plus raw power but needs to adjust his swing to get to it. His main goal is to get his swing shortened and smooth enough to hit for average and make enough contact to tap into that power in games. Mayo had scout interest as a pitcher in high school and boasts a plus arm at third base. He has a big frame and is a fringe-average runner, but the hope is he can stay agile and fit enough to be an average defensive third baseman in time.

THE FUTURE: Mayo is a long way from his ceiling as a power-hitting third baseman. He'll make his pro debut in 2021.

Draft Prospects

Mayo is a big, physical third baseman with a 6-foot-5, 215-pound frame and raw power and arm strength to match it. He also has a solid track record of hitting against some of the better pitchers in the 2020 class, with solid zone recognition and a mature approach at the plate. Mayo has tinkered a bit with his setup. Last summer he shifted his weight significantly back on his right foot, which put him in inconsistent launch positions and hurt his rhythm, but he’s since gone back to a 50-50 weight split. He still is more herky jerky in the box than fluid, and scouts wonder if that will prevent him from consistently tapping into his plus raw power despite a solid eye. He’s an obvious swing-change candidate if he gets to pro ball, but he does have solid contact ability. Defensively, Mayo has one of the strongest arms in the 2020 class, an easy plus cannon with tremendous carry. He’ll need to improve both his footwork and hands to stick at the position though, particularly when major league third basemen are required to handle more ground in a heavily shifted era. His raw tools and physicality are among the loudest in the 2020 prep class, but he could be a tough sign away from Florida. If he gets to campus in Gainesville he could tremendously improve his draft stock by tapping into his power against SEC competition.

Minor League Top Prospects

Mayo was a well above-slot signing for the Orioles out of high school in 2020, landing a $1.75 million bonus as a fourth-round pick. After Mayo had a knee injury in the spring, the Orioles held him back from full-season ball to begin the year in the FCL. He hit so well in the league that in mid August the Orioles jumped him to Low-A Delmarva, where he hit .311/.416/.547 in 125 plate appearances. Mayo has a huge 6-foot-5 frame with at least plus raw power, a tool he was able to tap into in games. With his long levers, there will probably always be some swing-and-miss to his game, but he kept that in check this year and showed impressive patience to go with his power. Coming off a knee injury, Mayo didn’t look 100% with his movements at third base. He has a plus arm, though there’s some risk he could end up at first base.

Top 100 Rankings

Scouting Reports

BA Grade/Risk: 50/High

Track Record: Mayo was the first of two significantly over-slot high school draftees for the Orioles from the 2020 draft. He signed for $1.75 million in the fourth round thanks to his impressive raw power. As a professional, Mayo has been assigned aggressively and reached Double-A Bowie at 20 years old. Back spasms forced him to miss some time upon arriving there, but the slugging righthanded hitter finished well after a slow start and his expected stats paint a more optimistic picture of his season than his actual ones.

Scouting Report: Mayo's carrying tool is his plus-plus raw power, and his ability to turn on inside pitches while driving balls over the heart of the plate gives him significant in-game power potential. Upper-minors pitchers exposed his issues with outer-third channeling and spin away, but the Orioles feel another offseason of adding strength can help Mayo control his body and the moving parts of his aggressive swing better to be more adjustable to those pitches and cover more of the plate. He might only be an average hitter and needs to control his bat path to keep the ball elevated to maximize the contact he does make. If he does so, his game power can flourish. Defensively, Mayo's peers may save the Orioles from having to make a call on him staying at third base. He could be fringe-average there and has a plus arm that fits at the position, but the expectation that the 6-foot-5 third baseman gets bigger could make him better suited for first base or a corner outfield spot.

The Future: Mayo didn't have the breakout season expected of him in 2022. Still, holding his own as a 20-year-old in Double-A was a sign there's still plenty to dream on. This is a big winter for Mayo, who with the right training and adjustments could break out on his way to becoming a first-division regular.

Scouting Grades: Hitting: 50. Power: 60. Speed: 45. Fielding: 45. Arm: 60.
BA Grade/Risk: 50/High

Track Record: Mayo was the first of two significantly over-slot high school draftees for the Orioles from the 2020 draft. He signed for $1.75 million in the fourth round thanks to his impressive raw power. As a professional, Mayo has been assigned aggressively and reached Double-A Bowie at 20 years old. Back spasms forced him to miss some time upon arriving there, but the slugging righthanded hitter finished well after a slow start and his expected stats paint a more optimistic picture of his season than his actual ones.

Scouting Report: Mayo's carrying tool is his plus-plus raw power, and his ability to turn on inside pitches while driving balls over the heart of the plate gives him significant in-game power potential. Upper-minors pitchers exposed his issues with outer-third channeling and spin away, but the Orioles feel another offseason of adding strength can help Mayo control his body and the moving parts of his aggressive swing better to be more adjustable to those pitches and cover more of the plate. He might only be an average hitter and needs to control his bat path to keep the ball elevated to maximize the contact he does make. If he does so, his game power can flourish. Defensively, Mayo's peers may save the Orioles from having to make a call on him staying at third base. He could be fringe-average there and has a plus arm that fits at the position, but the expectation that the 6-foot-5 third baseman gets bigger could make him better suited for first base or a corner outfield spot.

The Future: Mayo didn't have the breakout season expected of him in 2022. Still, holding his own as a 20-year-old in Double-A was a sign there's still plenty to dream on. This is a big winter for Mayo, who with the right training and adjustments could break out on his way to becoming a first-division regular.

Scouting Grades: Hitting: 50. Power: 60. Speed: 45. Fielding: 45. Arm: 60.
BA Grade: 55/Very High

Track Record: Prolific raw power as an amateur was the principal reason the Orioles signed Mayo for $1.75 million—more than $1 million above slot—in the five-round 2020 draft. Still, it would take work to translate that power into games, and Mayo ultimately did that after a spring training knee injury kept him back from a full-season affiliate. Once games began in the Florida Complex League, Mayo dominated and continued his rise with a month at Low-A Delmarva to end the year.

Scouting Report: Mayo used his time in extended spring training to improve his movement patterns and rotation to better allow him to get to his plus power in games and hit the ball in the air more consistently. His base is presently more stable than when he was an amateur. While tall, Mayo is athletic, allowing him to have a clean swing and catch the ball out front often. By combining the newfound loft in his swing with his natural strength, Mayo is hitting fewer ground balls and thus finding more hits when he stays in the park. He could be an average hitter as he continues to hone his approach, and his ability to control the strike zone and cut down on chase rate while still hitting for power in his debut season impressed the Orioles. Mayo could easily outgrow third base, but has a chance to be average there, with his plus arm an asset at the position.

The Future: Mayo doesn&#39t have much pro experience, but has the makings of a middle-of-the-lineup, everyday third baseman after how he finished 2021. He could be back at Delmarva for 2022, and is a few years away from the majors, but he features some of the system&#39s best offensive upside.

Scouting Grades
Hit: 50. Power: 60. Speed: 45. Fielding: 50. Arm: 60.
Track Record: Prolific raw power as an amateur was the principal reason the Orioles signed Mayo for $1.75 million—more than $1 million above slot—in the five-round 2020 draft. Still, it would take work to translate that power into games, and Mayo ultimately did that after a spring training knee injury kept him back from a full-season affiliate. Once games began in the Florida Complex League, Mayo dominated and continued his rise with a month at Low-A Delmarva to end the year.

Scouting Report: Mayo used his time in extended spring training to improve his movement patterns and rotation to better allow him to get to his plus power in games and hit the ball in the air more consistently. His base is presently more stable than when he was an amateur. While tall, Mayo is athletic, allowing him to have a clean swing and catch the ball out front often. By combining the newfound loft in his swing with his natural strength, Mayo is hitting fewer ground balls and thus finding more hits when he stays in the park. He could be an average hitter as he continues to hone his approach, and his ability to control the strike zone and cut down on chase rate while still hitting for power in his debut season impressed the Orioles. Mayo could easily outgrow third base, but has a chance to be average there, with his plus arm an asset at the position.

The Future: Mayo doesn’t have much pro experience, but has the makings of a middle-of-the-lineup, everyday third baseman after how he finished 2021. He could be back at Delmarva for 2022, and is a few years away from the majors, but he features some of the system’s best offensive upside.
Mayo was a well above-slot signing for the Orioles out of high school in 2020, landing a $1.75 million bonus as a fourth-round pick. After Mayo had a knee injury in the spring, the Orioles held him back from full-season ball to begin the year in the FCL. He hit so well in the league that in mid August the Orioles jumped him to Low-A Delmarva, where he hit .311/.416/.547 in 125 plate appearances. Mayo has a huge 6-foot-5 frame with at least plus raw power, a tool he was able to tap into in games. With his long levers, there will probably always be some swing-and-miss to his game, but he kept that in check this year and showed impressive patience to go with his power. Coming off a knee injury, Mayo didn’t look 100% with his movements at third base. He has a plus arm, though there’s some risk he could end up at first base.
TRACK RECORD: A Florida commit from the same high school as Cubs star Anthony Rizzo, Mayo showed prodigious power both on the showcase circuit and against good prep competition in games. The Orioles drafted him in the fourth round and signed him for $1.75 million, more than $1 million over slot. Mayo got his first taste of professional baseball in instructional league.

SCOUTING REPORT: Mayo boasts plus-plus raw power but needs to adjust his swing to get to it. His main goal is to get his swing shortened and smooth enough to hit for average and make enough contact to tap into that power in games. Mayo had scout interest as a pitcher in high school and boasts a plus arm at third base. He has a big frame and is a fringe-average runner, but the hope is he can stay agile and fit enough to be an average defensive third baseman in time.

THE FUTURE: Mayo is a long way from his ceiling as a power-hitting third baseman. He'll make his pro debut in 2021.
TRACK RECORD: A Florida commit from the same high school as Cubs star Anthony Rizzo, Mayo showed prodigious power both on the showcase circuit and against good prep competition in games. The Orioles drafted him in the fourth round and signed him for $1.75 million, more than $1 million over slot. Mayo got his first taste of professional baseball in instructional league.

SCOUTING REPORT: Mayo boasts plus-plus raw power but needs to adjust his swing to get to it. His main goal is to get his swing shortened and smooth enough to hit for average and make enough contact to tap into that power in games. Mayo had scout interest as a pitcher in high school and boasts a plus arm at third base. He has a big frame and is a fringe-average runner, but the hope is he can stay agile and fit enough to be an average defensive third baseman in time.

THE FUTURE: Mayo is a long way from his ceiling as a power-hitting third baseman. He'll make his pro debut in 2021.
TRACK RECORD: A Florida commit from the same high school as Cubs star Anthony Rizzo, Mayo showed prodigious power both on the showcase circuit and against good prep competition in games. The Orioles drafted him in the fourth round and signed him for $1.75 million, more than $1 million over slot. Mayo got his first taste of professional baseball in instructional league.

SCOUTING REPORT: Mayo boasts plus-plus raw power but needs to adjust his swing to get to it. His main goal is to get his swing shortened and smooth enough to hit for average and make enough contact to tap into that power in games. Mayo had scout interest as a pitcher in high school and boasts a plus arm at third base. He has a big frame and is a fringe-average runner, but the hope is he can stay agile and fit enough to be an average defensive third baseman in time.

THE FUTURE: Mayo is a long way from his ceiling as a power-hitting third baseman. He'll make his pro debut in 2021.