Matt Wallner

Matt Wallner

27-Year-Old OutfielderOF
Minnesota Twins
2025 Fantasy Outlook
Wallner entered 2024 viewed as the starting left fielder after a breakout 2023 season. However, he looked so lost at the plate during spring training that he was quickly demoted to the minors in mid-April after going 2-for-25 with 17 strikeouts. It took him awhile to find his stroke in the minors, but he was finally called back up July 7 and hit .282 with 12 home runs and a.945 OPS the rest of the season. Wallner has tremendous power, ranking in the top 20 batters in baseball last season in both Average Exit Velocity and Hard Hit % (per Baseball Savant) for batters with at least his much playing time. His power has come with a high strikeout rate (36.4%) and low contact rate (56.8%) that make him prone to long slumps. While he draws a decent amount of walks (9.2%) he may have been lucky the last two seasons with a high BABIP (.389) and HR/FB rates (21.7%). He also struggles against lefties (career .510 OPS vs. LHP) which likely limits him to a platoon. While he lacks range in the outfield he has one of the best outfield arms in the majors. With the departure of Max Kepler, he'll get a shot to be the starting right fielder, likely in the strong side of a platoon. He could hit more than 30 home runs if he can improve against lefties and avoid prolonged slumps. Read Past Outlooks
RANKS
Rest of Season From Preseason
#263
ADP
$Signed a one-year contract with the Twins in March of 2025.
Getting rest Tuesday
OFMinnesota Twins
June 3, 2025
Wallner is not in the Twins' lineup Tuesday against the Athletics.
ANALYSIS
Wallner has played in three games since returning from a hamstring injury Saturday, but he will get to rest Tuesday. He recorded a hit in each game, going 3-for-11 with a home run. With the 27-year-old on the bench, Willi Castro has the start in right field as Brooks Lee takes over for Castro at second base.
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Batting Stats
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2025
2024
2023
2022
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Batting Order Slot Breakdown
vs Right-Handed Pitchers
vs RHP
#1
#2
#3
#4
#5
#6
#7
#8
#9
13
2
3
1
vs Left-Handed Pitchers
vs LHP
#1
#2
#3
#4
#5
#6
#7
#8
#9
Left/Right Batting Splits
Since 2023
 
 
+46%
OPS vs RHP
2025
 
 
+120%
OPS vs LHP
2024
 
 
+56%
OPS vs RHP
2023
 
 
+102%
OPS vs RHP
OPS PA R HR RBI SB AVG OBP SLG
Since 2023vs Left .641 99 7 4 8 0 .172 .273 .368
Since 2023vs Right .933 497 69 25 75 5 .273 .392 .541
2025vs Left 1.698 9 1 1 2 0 .429 .556 1.143
2025vs Right .771 72 7 1 3 0 .246 .361 .410
2024vs Left .611 44 3 1 3 0 .184 .295 .316
2024vs Right .953 217 23 12 34 3 .275 .387 .566
2023vs Left .481 46 3 2 3 0 .119 .196 .286
2023vs Right .970 208 39 12 38 2 .281 .409 .561
More Splits View More Split Stats
Minor League Splits View Minor League Split Stats
Home/Away Batting Splits
Since 2023
 
 
+8%
OPS at Home
2025
 
 
+15%
OPS at Home
2024
 
 
+11%
OPS on Road
2023
 
 
+29%
OPS at Home
OPS PA R HR RBI SB AVG OBP SLG
Since 2023Home .919 290 44 15 42 3 .261 .376 .543
Since 2023Away .850 306 32 14 41 2 .250 .369 .480
2025Home .939 31 5 0 2 0 .345 .387 .552
2025Away .816 50 3 2 3 0 .205 .380 .436
2024Home .845 117 14 6 14 1 .232 .350 .495
2024Away .934 144 12 7 23 2 .281 .389 .545
2023Home .976 142 25 9 26 2 .265 .394 .581
2023Away .756 112 17 5 15 0 .229 .339 .417
More Splits View More Split Stats
Stat Review
How does Matt Wallner 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
0.48
 
BB Rate
12.3%
 
K Rate
25.9%
 
BABIP
.356
 
ISO
.221
 
AVG
.265
 
OBP
.383
 
SLG
.485
 
OPS
.868
 
wOBA
.381
 
Exit Velocity
92.0 mph
 
Hard Hit Rate
38.3%
 
Barrels/PA
9.9%
 
Expected BA
.259
 
Expected SLG
.516
 
Sprint Speed
23.0 ft/sec
 
Ground Ball %
27.7%
 
Line Drive %
17.0%
 
Fly Ball %
55.3%
 
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
2020
Wallner had a strong first full season in the majors and looks set to begin 2024 as the starting left fielder. After two short stints in the majors in April and May, Wallner was called up in July and took over the left field job by hitting 13 home runs with a .854 OPS in the second half. Wallner has outstanding power as measured by elite Avg. Exit Velocity (91.9 mph) and Barrel % (18.8%). He crushed right-handed pitching by hitting .281 with 12 home runs and a .970 OPS against righties. However, he struggled against lefties by hitting .118 with a .481 OPS against southpaws (although just 46 PA). Though he draws walks at a good rate (11.0% BB%) he strikes out too often (31.2% K%). He has one of the best throwing arm in the majors, but his range isn't great in the outfield. While he'll likely start in left field, he could be platooned and replaced for defensive purposes. Wallner has 30-home run power if he can improve against lefties and find more time in the lineup.
It's incredibly fitting that the Twins signed Joey Gallo this offseason, as Wallner is extremely similar to Gallo from a height, size, handedness and tools standpoint. A 6-foot-5 lefty-hitting, righty-throwing right fielder with easy 70-grade power and a 70-grade arm, Wallner made his big-league debut in 2022 and hit 27 home runs in 128 games between Double-A and Triple-A. He had a 38.5 K% in 65 MLB plate appearances after logging a 27.5 K% at Triple-A. Wallner's 113.8 mph maximum exit velocity (93rd percentile) in the majors is a huge indicator in his favor, and he has the power to exceed that figure over a larger sample. Wallner won't have a large role to start the year and may open in Triple-A, but he would be a cheap source of power if he falls into at least the strong side of a platoon at some point this season.
Selected with the No. 39 overall pick out of Southern Mississippi, Wallner was seen as a potential two-way prospect (some teams liked him better on the mound) before he scrapped pitching his draft year due to a forearm strain. His plus arm and 70-grade raw power give him a chance to be an impactful right fielder if he hits enough. Wallner hit .258/.357/.452 with eight home runs and 80 strikeouts (27.5 K%) in 65 games across stops in the Appalachian and Midwest leagues. The left-handed hitter did not show significant splits in his debut, so his main focus in his first full season will be to keep the strikeouts in check while getting to his top tool more consistently in games. He makes for a nice flier in deeper dynasty leagues and should at least be on watch lists in shallower formats. Look for him to either return to Low-A or get assigned to High-A for his age-22 season.
More Fantasy News
Lifts homer in return
OFMinnesota Twins
May 31, 2025
Wallner went 1-for-4 with a two-run home run in Saturday's 5-4 extra-innings loss to the Mariners.
ANALYSIS
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Officially activated off IL
OFMinnesota Twins
May 31, 2025
The Twins reinstated Wallner (hamstring) from the 10-day injured list Saturday, Aaron Gleeman of The Athletic reports.
ANALYSIS
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Should return Saturday
OFMinnesota Twins
Hamstring
May 30, 2025
Wallner (hamstring) is expected to be reinstated from the 10-day injured list Saturday, Dan Hayes of The Athletic reports.
ANALYSIS
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Continuing rehab to begin week
OFMinnesota Twins
Hamstring
May 25, 2025
Wallner (hamstring) is slated to continue his rehab assignment with Triple-A St. Paul to begin the upcoming week rather than joining the Twins for the start of their 10-game road trip that begins Monday, Aaron Gleeman of The Athletic reports.
ANALYSIS
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Strong start to rehab assignment
OFMinnesota Twins
Hamstring
May 23, 2025
Wallner (hamstring) is 5-for-9 with two home runs in two games for Triple-A St. Paul during a rehab assignment.
ANALYSIS
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Latest Fantasy Rumors
Seeking mental, physical reset
OFMinnesota Twins
April 17, 2024
Manager Rocco Baldelli hopes Wallner's demotion to Triple-A St. Paul on Tuesday will serve as a mental and physical reset, reports Dan Hayes of The Athletic.
ANALYSIS
The 26-year-old impressed in 2023 with an .877 OPS and 14 homers in 76 games for the Twins, but he went 2-for-25 with 17 strikeouts in 33 plate appearances this year before being sent down. Strikeouts have always been a concern for Wallner -- he had a 31.5 percent strikeout rate last season and never had a rate below 26 percent in the minors -- but his struggles became untenable with Minnesota looking to shake off a slow start as a team. Wallner should receive another big-league chance at some point in 2024, assuming he gets back on track at Triple-A.
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