Colby Thomas

24-Year-Old OutfielderOF
2025 Fantasy Outlook
Thomas isn't a perfect prospect, but he's big-league ready and has a chance to hit 20-plus homers with double-digit steals if he gets enough playing time as a rookie. He tallied 31 homers and 15 steals in 132 games split between Double-A and Triple-A. While his slash lines were similar and his ISO was almost identical at the two levels, Thomas' strikeout rate jumped from 18 percent at Double-A to 30.3 percent at Triple-A. His walk rate also jumped slightly from 6.5 percent to 7.3 percent, and the balls and strikes challenge system at Triple-A may have factored into both metrics going up. Given that Thomas was 23, what he did at Triple-A is more instructive for 2025 than what he did at Double-A, so don't expect him to hit north of .250. He's a quality defensive outfielder, capable of playing all three spots, and he bats right-handed, so Thomas could conceivably gain everyday playing time early this season. Read Past Outlooks
RANKS
Rest of Season
From Preseason
#417
ADP
Signed a one-year contract with the Athletics in June of 2025.
Sitting out third straight game
OFSacramento Athletics
August 20, 2025
Thomas is out of the lineup for Wednesday's game against the Twins.
Analysis
Despite recording at least one hit in his last five games while going 8-for-18 overall with two home runs and a stolen base, Thomas hasn't been able to break through in an everyday role in the Athletics outfield. He'll be on the bench Wednesday for the Athletics' third straight matchup versus a right-handed starting pitcher (Bailey Ober) and looks to be stuck in the short side of a platoon in right field with the left-handed-hitting JJ Bleday.
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Batting Stats
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2025 MLB Game Log
2025
2025 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
2
1
2
vs Left-Handed Pitchers
vs LHP
#1
#2
#3
#4
#5
#6
#7
#8
#9
3
2
1
2
Left/Right Batting Splits
Since 2023
 
 
+90%
OPS vs LHP
2025
 
 
+90%
OPS vs LHP
2024
No Stats
2023
No Stats
OPS PA R HR RBI SB AVG OBP SLG
Since 2023vs Left .987 30 6 3 10 2 .269 .333 .654
Since 2023vs Right .519 30 2 0 2 0 .214 .233 .286
2025vs Left .987 30 6 3 10 2 .269 .333 .654
2025vs Right .519 30 2 0 2 0 .214 .233 .286
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
 
 
+118%
OPS at Home
2025
 
 
+118%
OPS at Home
2024
No Stats
2023
No Stats
OPS PA R HR RBI SB AVG OBP SLG
Since 2023Home 1.146 22 5 2 7 1 .368 .409 .737
Since 2023Away .525 38 3 1 5 1 .171 .211 .314
2025Home 1.146 22 5 2 7 1 .368 .409 .737
2025Away .525 38 3 1 5 1 .171 .211 .314
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 Colby Thomas 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
0.12
 
BB Rate
5.0%
 
K Rate
43.3%
 
BABIP
.370
 
ISO
.222
 
AVG
.241
 
OBP
.283
 
SLG
.463
 
OPS
.746
 
wOBA
.319
 
Exit Velocity
88.6 mph
 
Hard Hit Rate
33.3%
 
Barrels/PA
5.0%
 
Expected BA
.119
 
Expected SLG
.147
 
Sprint Speed
23.7 ft/sec
 
Ground Ball %
33.3%
 
Line Drive %
16.7%
 
Fly Ball %
50.0%
 
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 Colby Thomas See More
Recent RotoWire Articles Featuring Colby Thomas See More
More Fantasy News
Receiving Sunday off
OFSacramento Athletics
August 17, 2025
Thomas is out of the lineup for Sunday's game against the Angels.
Analysis
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Blasts homer in win
OFSacramento Athletics
August 16, 2025
Thomas went 1-for-4 with a two-run home run in Saturday's 7-2 win over the Angels.
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Homers in three-hit effort
OFSacramento Athletics
August 15, 2025
Thomas went 3-for-3 with a three-run home run and an additional run scored in Friday's 10-3 win over the Angels.
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Swipes bag, plates two
OFSacramento Athletics
August 12, 2025
Thomas went 2-for-3 with a double, two RBI, a stolen base and one run scored in Tuesday's 6-0 win over the Rays.
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Tallies first big-league homer
OFSacramento Athletics
August 7, 2025
Thomas went 1-for-1 with a two-run home run and an additional RBI in Thursday's 6-0 win over the Nationals.
Analysis
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