Ben Williamson

Ben Williamson

24-Year-Old Third Baseman3B
Seattle Mariners
2025 Fantasy Outlook
There was no outlook written for Ben Williamson in 2025. Check out the latest news below for more on his current fantasy value.
RANKS
Rest of Season
From Preseason
$Signed a one-year contract with the Mariners in April of 2025.
Not starting Tuesday
3BSeattle Mariners
April 22, 2025
Williamson is out of the lineup for Tuesday's game against the Red Sox.
ANALYSIS
The 24-year-old has a .217/.250/.391 slash line in six games since being promoted by the Mariners on April 13, and he'll hit the bench Tuesday after starting the previous three contests. Miles Mastrobuoni will receive the start at third base in place of Williamson.
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Batting Stats
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2025
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Batting Order Slot Breakdown
vs Right-Handed Pitchers
vs RHP
#1
#2
#3
#4
#5
#6
#7
#8
#9
3
vs Left-Handed Pitchers
vs LHP
#1
#2
#3
#4
#5
#6
#7
#8
#9
1
2
Left/Right Batting Splits
Since 2023
 
 
+62%
OPS vs LHP
2025
 
 
+62%
OPS vs LHP
2024
No Stats
2023
No Stats
OPS PA R HR RBI SB AVG OBP SLG
Since 2023vs Left 1.125 8 4 0 0 0 .500 .625 .500
Since 2023vs Right .696 23 3 1 3 0 .261 .261 .435
2025vs Left 1.125 8 4 0 0 0 .500 .625 .500
2025vs Right .696 23 3 1 3 0 .261 .261 .435
2024vs Left 0 0 0 0 0 0 0 0 0
2024vs Right 0 0 0 0 0 0 0 0 0
2023vs Left 0 0 0 0 0 0 0 0 0
2023vs Right 0 0 0 0 0 0 0 0 0
More Splits View More Split Stats
Minor League Splits View Minor League Split Stats
Home/Away Batting Splits
Since 2023
 
 
-100%
OPS on Road
2025
 
 
-100%
OPS on Road
2024
No Stats
2023
No Stats
OPS PA R HR RBI SB AVG OBP SLG
Since 2023Home 0 0 0 0 0 0 0 0 0
Since 2023Away .803 31 7 1 3 0 .310 .355 .448
2025Home 0 0 0 0 0 0 0 0 0
2025Away .803 31 7 1 3 0 .310 .355 .448
2024Home 0 0 0 0 0 0 0 0 0
2024Away 0 0 0 0 0 0 0 0 0
2023Home 0 0 0 0 0 0 0 0 0
2023Away 0 0 0 0 0 0 0 0 0
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Stat Review
How does Ben Williamson 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
0.33
 
BB Rate
7.7%
 
K Rate
23.1%
 
BABIP
.294
 
ISO
.167
 
AVG
.250
 
OBP
.308
 
SLG
.417
 
OPS
.724
 
wOBA
.320
 
Exit Velocity
86.9 mph
 
Hard Hit Rate
22.2%
 
Barrels/PA
7.7%
 
Expected BA
.239
 
Expected SLG
.381
 
Sprint Speed
26.0 ft/sec
 
Ground Ball %
50.0%
 
Line Drive %
22.2%
 
Fly Ball %
27.8%
 
Prospect Rankings History
Advanced Batting Stats
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Additional Stats
Games By Position
Defensive Stats
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Batted Ball Stats
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Stats Vs Upcoming Pitchers
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More Fantasy News
Swats first career homer
3BSeattle Mariners
April 19, 2025
Williamson went 2-for-6 with a double, a solo home run and a second run scored in Saturday's 8-4 extra-innings win over the Blue Jays.
ANALYSIS
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Heading to big leagues
3BSeattle Mariners
April 13, 2025
The Mariners selected Williamson's contract from Triple-A Tacoma on Sunday.
ANALYSIS
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Popped by Mariners
3BSeattle Mariners
July 9, 2023
The Mariners have selected Williamson with the 57th overall pick in the 2023 First-Year Player Draft.
ANALYSIS
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