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.
Supplies lone run in loss
OFMinnesota Twins
July 3, 2025
Wallner went 1-for-4 with a solo home run during Thursday's 4-1 loss to Miami.
Analysis
Wallner broke the Marlins' shutout attempt in the seventh inning, when he took Cade Gibson deep to center field for a solo home run. It was Wallner's eighth home run of the season, six of which have come since the beginning of June. That hasn't masked the 27-year-old outfielder's struggles at the plate this season, as he sports a .199/.295/.444 slash line with 14 RBI and a 28.9 percent strikeout rate in 173 plate appearances.
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Batting Stats
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2025 MLB Game Log
2025
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2023
2022
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2024 MLB Game Log
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2023 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
13
4
4
7
7
2
1
vs Left-Handed Pitchers
vs LHP
#1
#2
#3
#4
#5
#6
#7
#8
#9
1
1
1
1
Left/Right Batting Splits
Since 2023
 
 
+44%
OPS vs RHP
2025
 
 
+15%
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 .624 125 11 5 9 0 .171 .264 .360
Since 2023vs Right .899 567 76 30 83 5 .256 .372 .527
2025vs Left .830 35 5 2 3 0 .226 .314 .516
2025vs Right .719 142 14 6 11 0 .195 .296 .423
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
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Minor League Splits View Minor League Split Stats
Home/Away Batting Splits
Since 2023
 
 
+10%
OPS at Home
2025
 
 
+19%
OPS at Home
2024
 
 
+11%
OPS on Road
2023
 
 
+29%
OPS at Home
OPS PA R HR RBI SB AVG OBP SLG
Since 2023Home .888 344 51 19 48 3 .248 .358 .531
Since 2023Away .808 348 36 16 44 2 .232 .348 .461
2025Home .806 85 12 4 8 0 .244 .306 .500
2025Away .675 92 7 4 6 0 .158 .293 .382
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
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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
0.36
 
BB Rate
10.4%
 
K Rate
28.9%
 
BABIP
.234
 
ISO
.245
 
AVG
.199
 
OBP
.295
 
SLG
.444
 
OPS
.739
 
wOBA
.323
 
Exit Velocity
91.2 mph
 
Hard Hit Rate
43.1%
 
Barrels/PA
7.5%
 
Expected BA
.223
 
Expected SLG
.431
 
Sprint Speed
22.0 ft/sec
 
Ground Ball %
34.3%
 
Line Drive %
16.7%
 
Fly Ball %
49.0%
 
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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Recent RotoWire Articles Featuring Matt Wallner See More
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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
Idle against ace lefty
OFMinnesota Twins
June 29, 2025
Wallner is out of the lineup for Sunday's game against the Tigers.
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Raps sixth home run in loss
OFMinnesota Twins
June 20, 2025
Wallner went 1-for-4 with a two-run home run in Friday's 17-6 defeat to the Brewers.
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Out against left-hander
OFMinnesota Twins
June 17, 2025
Wallner is absent from the lineup for Tuesday's game in Cincinnati.
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Sits against lefty
OFMinnesota Twins
June 4, 2025
Wallner didn't start in Wednesday's 6-1 win over the Athletics due to left-hander Jeffrey Springs working the bulk of innings in relief behind right-handed opener Justin Sterner, Phil Miller of The Minnesota Star Tribune reports.
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Getting rest Tuesday
OFMinnesota Twins
June 3, 2025
Wallner is not in the Twins' lineup Tuesday against the Athletics.
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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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