Joey Wiemer

Joey Wiemer

26-Year-Old OutfielderOF
Miami Marlins
2025 Fantasy Outlook
Wiemer spent 2024 with two teams and was shipped to a third organization in the offseason when the Reds sent him and Jonathan India to Kansas City for Brady Singer. He opened with Milwaukee's Triple-A affiliate in Nashville before a couple of stints with the Brewers early in the season. Primarily a center fielder that can play all three outfield positions, Wiemer hinted at 20-20 potential in the lower levels of the minors, but upper-level pitching (AAA and MLB) got the best of him. He has a .627 OPS across two MLB seasons and doesn't get on base enough (.279 OBP) to take advantage of stolen-base skills. The Royals, who are set in center field with Kyle Isbel, view Wiemer as a long-term investment with untapped potential and will have him compete for a fourth outfielder job. Read Past Outlooks
RANKS
Rest of Season
From Preseason
#362
ADP
Signed a one-year contract with the Royals in March of 2025. Waived by the Royals in August of 2025. Claimed off waivers by the Marlins in August of 2025.
Called up, starting Sunday
OFMiami Marlins
August 17, 2025
The Marlins recalled Wiemer from Triple-A Jacksonville, and he'll start in left field and bat seventh in Sunday's game against the Red Sox.
Analysis
Miami brought Wiemer aboard as a replacement for Kyle Stowers (oblique), who was placed on the injured list in a corresponding move. With Stowers expected to miss several weeks while recovering from a Grade 1 strain, the team seems likely to lean on a committee to replace him. The right-handed-hitting Wiemer will crack the lineup Sunday against southpaw Garrett Crochet, but he could find playing time more difficult to come by against right-handed pitching. A skilled defender, Wiemer is capable of playing all three outfield spots, but he's struggled to a .203/.315/.357 slash line across 82 games with two Triple-A clubs this season.
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Batting Stats
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2025 MLB Game Log
2025
2024
2023
2025 MLB Game Log
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2024 MLB Game Log
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Batting Order Slot Breakdown
vs Right-Handed Pitchers
vs RHP
#1
#2
#3
#4
#5
#6
#7
#8
#9
1
2
1
vs Left-Handed Pitchers
vs LHP
#1
#2
#3
#4
#5
#6
#7
#8
#9
1
1
Left/Right Batting Splits
Since 2023
 
 
+39%
OPS vs LHP
2025
 
 
+21%
OPS vs LHP
2024
 
 
+413%
OPS vs LHP
2023
 
 
+43%
OPS vs LHP
OPS PA R HR RBI SB AVG OBP SLG
Since 2023vs Left .755 150 18 7 20 4 .259 .287 .469
Since 2023vs Right .544 314 32 6 26 8 .171 .268 .276
2025vs Left .482 11 0 0 4 0 .200 .182 .300
2025vs Right .400 15 0 0 0 0 .200 .200 .200
2024vs Left .513 18 2 0 0 1 .235 .278 .235
2024vs Right .100 10 0 0 0 0 .000 .100 .000
2023vs Left .815 121 16 7 16 3 .267 .298 .517
2023vs Right .568 289 32 6 26 8 .175 .277 .291
More Splits View More Split Stats
Minor League Splits View Minor League Split Stats
Home/Away Batting Splits
Since 2023
 
 
+30%
OPS at Home
2025
 
 
+50%
OPS at Home
2024
 
 
+474%
OPS at Home
2023
 
 
+19%
OPS at Home
OPS PA R HR RBI SB AVG OBP SLG
Since 2023Home .694 238 26 9 25 7 .222 .303 .392
Since 2023Away .535 226 24 4 21 5 .180 .243 .291
2025Home .571 7 0 0 0 0 .286 .286 .286
2025Away .380 19 0 0 4 0 .167 .158 .222
2024Home .717 12 2 0 0 1 .300 .417 .300
2024Away .125 16 0 0 0 0 .063 .063 .063
2023Home .697 219 24 9 25 6 .215 .297 .400
2023Away .587 191 24 4 17 5 .192 .267 .320
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Stat Review
How does Joey Wiemer 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
0.00
 
BB Rate
0.0%
 
K Rate
53.8%
 
BABIP
.417
 
ISO
.040
 
AVG
.200
 
OBP
.192
 
SLG
.240
 
OPS
.432
 
wOBA
.186
 
Exit Velocity
82.4 mph
 
Hard Hit Rate
41.7%
 
Barrels/PA
0.0%
 
Expected BA
.000
 
Expected SLG
.000
 
Sprint Speed
27.8 ft/sec
 
Ground Ball %
66.7%
 
Line Drive %
25.0%
 
Fly Ball %
8.3%
 
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
Wiemer came up just short of making the Brewers' Opening Day roster but was added for the second game of the season after Luis Urias got hurt on Opening Day. The rookie operated as the team's everyday center fielder for four months and offered flashes of production, including in June when he posted an .848 OPS with six home runs. Wiemer struggled with consistency and in making contact (28.3 percent strikeout rate), though, and eventually found himself in a reserve role in August and back in the minors by September. There's 20-20 potential here if Wiemer can show some growth at the dish, but his defense is well ahead of his offense right now and Milwaukee looks to have others ahead of him on their outfield depth chart.
If it weren't for Wiemer's insane finish to the 2022 season, it would be pretty easy to conclude he has a low likelihood of making enough contact to be more than a short-side platoon outfielder. He was a hair below league average (98 wRC+) with a 30.2 K%, 65.7 Contact% and 9.1 BB% in 84 games as a 23-year-old at Double-A before getting an early-August bump to Triple-A. Three weeks after his promotion, Wiemer went on a heater, slashing .337/.438/.630 with five home runs, three steals and more walks (18) than strikeouts (17) in his final 27 games. Prior to that run, Wiemer hit .237/.309/.427 in 99 games, so either he had a lucky four weeks at the end of the season or he took a legitimate step forward as a hitter. It should be noted that he wasn't facing great pitching over that final month, as most of the good pitchers at Triple-A are already in the majors by the season's final month, and he took advantage of some long series in a couple hitter-friendly parks. Notorious for his 70-grade power, Wiemer is also a plus runner, going 31-for-34 on stolen-base attempts last season. The power/speed upside is pretty obvious, and there's solid evidence on both sides of the hit tool debate. Wiemer projects to add value with his right field defense.
Wiemer, the Brewers' fourth-round pick in 2020, was one of the biggest breakout prospects in the minors last season. His swing in college drew comparisons to Hunter Pence (unfavorably so), but he remade his swing and and the results were undeniable. He hit 27 home runs and stole 30 bases (on 36 attempts) while slashing .295/.403/.556 as an old-for-the-level 22-year-old at Low-A and High-A. Wiemer then got on base at a .568 clip in 37 Arizona Fall League plate appearances prior to suffering a minor thumb injury. As with most tooled up right fielders, there will always be some swing and miss with Wiemer, and Double-A will be a big test for him. If he can pick up where he left off in 2021, Wiemer would establish himself as a legitimate 30/20 threat with a 2023 ETA. However, if he strikes out too much, his age (23) will be held against him and his breakout 2021 season will be seen as another example of an older player beating up on weak competition in the lower levels.
More Fantasy News
Headed to majors
OFMiami Marlins
August 16, 2025
The Marlins will recall Wiemer from Triple-A Jacksonville prior to Sunday's game in Boston, Daniel Alvarez-Montes of ElExtraBase.com reports.
Analysis
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Scooped up by Fish
OFMiami Marlins
August 4, 2025
The Marlins claimed Wiemer off waivers from the Royals on Monday.
Analysis
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DFA'd by Kansas City
OFKansas City Royals
August 1, 2025
The Royals designated Wiemer for assignment Friday.
Analysis
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Goes to minors
OFKansas City Royals
March 25, 2025
The Royals optioned Wiemer to Triple-A Omaha on Tuesday.
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Headed to Kansas City
OFKansas City Royals
November 22, 2024
The Reds traded Wiemer and Jonathan India to the Royals on Friday in exchange for Brady Singer.
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Latest Fantasy Rumors
More comfortable with new swing
OFMilwaukee Brewers
April 18, 2024
Wiemer struggled the first week of the season at Triple-A Nashville as he got comfortable with some offseason swing changes, but he posted a .993 OPS over his last 30 plate appearances before being promoted Sunday, reports Curt Hogg of the Milwaukee Journal Sentinel.
Analysis
The 25-year-old outfielder made significant tweaks to his swing to cut down on unnecessary movement, but he posted a .464 OPS during spring training and went 2-for-21 during the first week of the Triple-A season. Wiemer seemed to turn a corner from there and now feels more "natural" at the plate. He flashed his potential as a rookie last season with 13 homers and 11 steals in 132 games, though he hit just .204 and had a 28.3 percent strikeout rate. Wiemer could see some playing time for Milwaukee while Christian Yelich is sidelined by a back injury, but Blake Perkins has enjoyed a strong start to the season and is more likely to be a lineup regular.
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