Coby Mayo

23-Year-Old Third Baseman3B

Baltimore Orioles

2025 Stats

AVG

.130

RBI

Rest-of-Season Projections

AVG

RBI

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2025 Fantasy Outlook

Mayo has logged two seasons of excellence at Triple-A before turning 23 this December, but he failed in his first cup of coffee with the big club. A scouting and developmental success story that the organization takes a lot of pride in, Mayo has been on a steady incline as a dynasty asset since he received a seven-figure bonus after going in the fourth round of the 2020 draft. He is a passable defender at third base and moves well for his 6-foot-5 frame, but long-term in Baltimore, Mayo makes the most sense at first base. He slashed .293/.372/.592 with 25 home runs, four steals and excellent hard-hit data (33.7 Hard%, 13.3 Soft%) in 93 minor-league games but .098 with 22 strikeouts, four walks and zero extra-base hits in 46 MLB plate appearances. After logging a 71.5 percent contact rate in the minors, he made contact at just a 56.7 percent clip in the majors. It was a humbling debut for the hulking corner infielder, but his youth and track record scream "buy low" in dynasty and redraft. Read Past Outlooks

RANKS

Rest of Season

Dynasty

From Preseason

Prospect

#373

ADP

League Majors

Bats R

Throws R

40 Man Yes

Height 6'5"

Weight 230

DOB 12/10/2001

Born Coral Springs, FL

College None

Drafted 4th Rd 2020 BAL

Back with big club

3BBaltimore Orioles

May 31, 2025

The Orioles recalled Mayo from Triple-A Norfolk on Saturday. He will start at designated hitter and bat sixth Saturday against the White Sox.

ANALYSIS
With Ryan Mountcastle (hamstring) moving to the injured list, Mayo will rejoin the active roster to give Baltimore some additional infield depth. The 23-year-old went just 1-for-12 during his previous stint in the big leagues this season and has slashed .180/.265/.328 across 61 plate appearances since being sent back down to Triple-A.

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Batting Stats

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2025

2024

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Scoring

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2024 MLB Game Log

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Minor League Game Log

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Batting Order Slot Breakdown

vs Right-Handed Pitchers

vs RHP

vs Left-Handed Pitchers

vs LHP

Left/Right Batting Splits

Since 2023

+61%

OPS vs LHP

2025

-100%

OPS vs RHP

2024

+106%

OPS vs LHP

2023

No Stats

	OPS	PA	R	HR	RBI	SB	AVG	OBP	SLG
Since 2023vs Left	.411	18	1	0	0	0	.133	.278	.133
Since 2023vs Right	.256	52	5	0	1	0	.102	.154	.102
2025vs Left	.000	1	0	0	0	0	.000	.000	.000
2025vs Right	.310	23	2	0	1	0	.136	.174	.136
2024vs Left	.437	17	1	0	0	0	.143	.294	.143
2024vs Right	.212	29	3	0	0	0	.074	.138	.074
2023vs Left	0	0	0	0	0	0	0	0	0
2023vs Right	0	0	0	0	0	0	0	0	0
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Minor League Splits→	View Minor League Split Stats

Home/Away Batting Splits

Since 2023

+17%

OPS at Home

2025

+54%

OPS on Road

2024

+63%

OPS at Home

2023

No Stats

	OPS	PA	R	HR	RBI	SB	AVG	OBP	SLG
Since 2023Home	.322	29	3	0	1	0	.115	.207	.115
Since 2023Away	.276	41	3	0	0	0	.105	.171	.105
2025Home	.237	13	1	0	1	0	.083	.154	.083
2025Away	.364	11	1	0	0	0	.182	.182	.182
2024Home	.393	16	2	0	0	0	.143	.250	.143
2024Away	.241	30	2	0	0	0	.074	.167	.074
2023Home	0	0	0	0	0	0	0	0	0
2023Away	0	0	0	0	0	0	0	0	0
More Splits→	View More Split Stats

Stat Review

How does Coby Mayo compare to other hitters?

This section compares his stats with all batting seasons from the previous three seasons (minimum 400 plate appearances)*. The bar represents the player's percentile rank. For example, if the bar is halfway across, then the player falls into the 50th percentile for that stat and it would be considered average.

* Exit Velocity and Barrels/PA % are benchmarked against 2019 data (min 400 PA) and Hard Hit Rate is benchmarked against last season's data (min 400 PA). See here for more exit velocity/barrels stats plus an explanation of current limitations with that data set.

BB/K
Walk to strikeout ratio
BB Rate
The percentage of plate appearances resulting in a walk.
K Rate
The percentage of plate appearances resulting in a strikeout.
BABIP
Batting average on balls in play. Measures how many of a batter’s balls in play go for hits.
ISO
Isolated Power. Slugging percentage minus batting average. A computation used to measure a batter's raw power.
AVG
Batting average. Hits divided by at bats.
OBP
On Base Percentage. A measure of how often a batters reaches base. Roughly equal to number of times on base divided by plate appearances.
SLG
Slugging Percentage. A measure of the batting productivity of a hitter. It is calculated as total bases divided by at bats.
OPS
On base plus slugging. THe sum of a batter's on-base percentage and slugging percentage.
wOBA
Weighted on-base average. Measures a player's overall offensive contributions per plate appearance. wOBA combines all the different aspects of hitting into one metric, weighting each of them in proportion to their actual run value.
Exit Velocity
The speed of the baseball as it comes off the bat, immediately after a batter makes contact.
Hard Hit Rate
A measure of contact quality from Sports Info Solutions. This stat explains what percentage of batted balls were hit hard vs. medium or soft.
Barrels/PA
The percentage of plate appearances where a batter had a batted ball classified as a Barrel. A Barrel is a batted ball with similar exit velocity and launch angle to past ones that led to a minimum .500 batting average and 1.500 slugging percentage.
Expected BA
Expected Batting Average.
Expected SLG
Expected Slugging Percentage.
Sprint Speed
The speed of a runner from home to first, in feet per second.
Ground Ball %
The percentage of balls put in play that are on the ground.
Line Drive %
The percentage of balls put in play that are line drives.
Fly Ball %
The percentage of balls put in play that are fly balls.

BB/K

0.13

BB Rate

4.2%

K Rate

33.3%

BABIP

.200

ISO

.000

AVG

.130

OBP

.167

SLG

.130

OPS

.297

wOBA

.140

Exit Velocity

91.2 mph

Hard Hit Rate

13.3%

Barrels/PA

0.0%

Expected BA

.153

Expected SLG

.186

Sprint Speed

23.9 ft/sec

Ground Ball %

33.3%

Line Drive %

26.7%

Fly Ball %

40.0%

Prospect Rankings History

Advanced Batting Stats

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Additional Stats

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Defensive Stats

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Batted Ball Stats

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Stats Vs Upcoming Pitchers

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Past Fantasy Outlooks

2024

2023

2022

Mayo has a near-flawless track record as a hitter. The corner infielder's age-21 season was a tour de force across Double-A and Triple-A, as he slashed .290/.410/.563 with 29 homers, a 24.1 K%, 15.1 BB%, 35.1 Hard% and 15.7 Soft% in 140 games. His groundball rate was below 36% at both stops, and Mayo had an elite 106.6-mph 90th percentile exit velocity at Triple-A. He doesn't have the most aesthetically pleasing swing, but from an impact and swing-decision standpoint, Mayo passes any evaluation with high marks. The two biggest knocks on him for fantasy are things that are outside his control. He hits right handed and Oriole Park at Camden Yards was 34% worse than league average for righty homers in 2023 and 19% worse than league average in 2022, per Baseball Savant. Last year, it was the third-worst park for righty power. Additionally, Baltimore will likely need to clear room ahead of him on the organizational depth chart via a trade in order for Mayo to see MLB time early in 2024. He appears to be big-league ready but with nowhere to play, making him a high-variance option in draft-and-hold formats. For instance, a Ryan Mountcastle trade would significantly increase Mayo's short-term appeal, but no such move is guaranteed. He saw more time at third base than first base in 2023, but he profiles best with this team at first base and designated hitter long term.

Mayo is a decent buy-low target in dynasty leagues this offseason, as his most recent stat line (.250/.331/.398, 34.5 K%, .148 ISO in 34 games at Double-A) undersells his realistic potential. The Orioles have flipped the switch to contention, so the days of them slow-cooking their best prospects in the minors are over. Mayo getting pushed from High-A, where he slashed .251/.326/.494 with a 21.5 K% and .243 ISO while getting a little unlucky (.275 BABIP) as a 20-year-old, to Double-A was an aggressive promotion from Baltimore. The player type matters here too, as the typical big (6-foot-5, 215 pounds) power-hitting corner infielders can be slower to develop than contact-oriented middle infielders. Strikeouts will be part of the package with Mayo over the next couple years against upper-level and big-league pitching, but he could eventually develop an above-average hit tool to go with his plus power. Additionally, Mayo could develop even more power as he continues to fill out his frame. The Orioles will have a stacked depth chart by the time Mayo is ready for the majors, so he may have to move to first base, right field or designated hitter.

Mayo, who received $1.75 million (over triple slot value) after the Orioles selected him in the fourth round in 2020, had essentially a perfect pro debut. He hit .319/.426/.555 with nine home runs, a 13.4 BB% and an 18.5 K% in 53 games split evenly between the Florida Complex League and Low-A. The 6-foot-5 third baseman has kept his body in great shape, maintaining strength without adding bad weight, and he was playing at appropriate levels for a 19-year-old slugger. Players who are as big, young and powerful as Mayo typically come with hit tool concerns, but so far that's looking like a major strength of his. While he is a good athlete for his size and position, Mayo's 11 steals on 11 attempts aren't very relevant, as he figures to slow down and lower-level stolen-base totals don't tell us much with any player. He seems to have an excellent eye at the plate, and when he chooses to swing, he typically hits it hard and in the air. Mayo is still at least a couple years away from the majors, but he is looking like a potential Austin Riley-esque middle-of-the-order staple.

More Fantasy News

Could be recalled from minors

3BBaltimore Orioles

May 31, 2025

Mayo is on his way to Baltimore and could be recalled by the Orioles, Andy Kostka of TheBaltimoreBanner.com reports.