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.
Sitting second time in three games
3BSeattle Mariners
June 30, 2025
Williamson is out of the lineup for Monday's game against the Royals.
Analysis
The rookie will head to the bench for the second time in three games while Miles Mastrobuoni gets the nod at third base. Though Williamson has produced an adequate .254 batting average since being promoted from Triple-A Tacoma on April 13, he's drawn walks at a weak 4.1 percent rate and isn't hitting for much power (.052 ISO). Mastrobuoni profiles as more of a utility player and might not be a serious threat to unseat Williamson atop the depth chart, but Seattle could look outside the organization for an upgrade at third base prior to the July 31 trade deadline if the team remains in the thick of the playoff picture.
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Batting Stats
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2025 MLB Game Log
2025
2025 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
#1
#2
#3
#4
#5
#6
#7
#8
#9
3
15
22
vs Left-Handed Pitchers
vs LHP
#1
#2
#3
#4
#5
#6
#7
#8
#9
4
8
5
Left/Right Batting Splits
Since 2023
 
 
+13%
OPS vs LHP
2025
 
 
+13%
OPS vs LHP
2024
No Stats
2023
No Stats
OPS PA R HR RBI SB AVG OBP SLG
Since 2023vs Left .645 64 10 0 2 0 .283 .328 .317
Since 2023vs Right .573 156 19 1 11 2 .242 .271 .302
2025vs Left .645 64 10 0 2 0 .283 .328 .317
2025vs Right .573 156 19 1 11 2 .242 .271 .302
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
 
 
+26%
OPS on Road
2025
 
 
+26%
OPS on Road
2024
No Stats
2023
No Stats
OPS PA R HR RBI SB AVG OBP SLG
Since 2023Home .510 80 10 0 6 1 .221 .250 .260
Since 2023Away .643 140 19 1 7 1 .273 .309 .333
2025Home .510 80 10 0 6 1 .221 .250 .260
2025Away .643 140 19 1 7 1 .273 .309 .333
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
More Splits View More Split Stats
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
0.16
 
BB Rate
4.1%
 
K Rate
25.9%
 
BABIP
.344
 
ISO
.053
 
AVG
.254
 
OBP
.288
 
SLG
.306
 
OPS
.594
 
wOBA
.266
 
Exit Velocity
88.4 mph
 
Hard Hit Rate
26.8%
 
Barrels/PA
2.3%
 
Expected BA
.231
 
Expected SLG
.311
 
Sprint Speed
25.6 ft/sec
 
Ground Ball %
55.3%
 
Line Drive %
17.1%
 
Fly Ball %
27.6%
 
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 Ben Williamson See More
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More Fantasy News
Absent from Saturday's lineup
3BSeattle Mariners
June 28, 2025
Williamson is not in Seattle's starting lineup against Texas on Saturday.
Analysis
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Getting breather Wednesday
3BSeattle Mariners
June 25, 2025
Williamson isn't in the lineup for Wednesday's game against the Twins, Shannon Drayer of SeattleSports.com reports.
Analysis
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On bench Sunday
3BSeattle Mariners
June 22, 2025
Williamson is out of the lineup for Sunday's game against the Cubs.
Analysis
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Getting Sunday off
3BSeattle Mariners
June 15, 2025
Williamson is out of the lineup for Sunday's game against the Guardians.
Analysis
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Picks up steal in loss
3BSeattle Mariners
June 6, 2025
Williamson went 2-for-3 with a double, a stolen base and two runs scored in Friday's 5-4 loss to the Angels.
Analysis
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