Colby Thomas

24-Year-Old OutfielderOF
Sacramento Athletics AAA
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 $750,000 contract with the Athletics in July of 2022.
Thriving at Triple-A
OFSacramento Athletics  AAA
June 13, 2025
Thomas is slashing .301/.361/.568 with 16 home runs and three steals in 61 games for Triple-A Las Vegas.
ANALYSIS
Thomas played 73 games at Triple-A last year, and he has cut his strikeout rate from 30.3 percent in 2024 to 26.3 percent this year while upping his hard-hit rate from 36.4 percent to 40.5 percent. Thomas isn't on the 40-man roster and is best suited to play corner outfield, so he may need an injury or a trade to get a look in the coming weeks, even though it seems like his bat is ready for a new challenge.
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Batting Stats
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Minor League Left/Right Batting Splits (AAA)
Since 2023
 
 
+13%
OPS vs RHP
2025
 
 
+26%
OPS vs LHP
2024
 
 
+68%
OPS vs RHP
2023
No Stats
OPS PA R HR RBI SB AVG OBP SLG
Since 2023vs Left .840 180 9 28 .265 .333 .506
Since 2023vs Right .948 419 24 72 .295 .360 .588
2025vs Left 1.081 75 5 15 .361 29.000 .625
2025vs Right .858 210 11 40 .278 66.038 .545
2024vs Left .594 105 4 13 .189 30.010 .411
2024vs Right .996 209 13 32 .312 69.038 .630
2023vs Left 0 0 0 0 0 0 0 0 0
2023vs Right 0 0 0 0 0 0 0 0 0
Prospect Rankings History
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Defensive Stats
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More Fantasy News
Returns to action over weekend
OFSacramento Athletics  AAA
March 24, 2025
Thomas (knee) played in Cactus League games Saturday and Sunday and went a combined 2-for-5 with a home run, an additional run and two RBI while playing 13 innings in left field.
ANALYSIS
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X-rays negative on right knee
OFSacramento Athletics  AAA
Knee
March 15, 2025
X-rays came back negative on Thomas' right knee following Saturday's spring game against the Rangers, Jessica Kleinschmidt of TheComeback.com reports.
ANALYSIS
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Exits Saturday's game
OFSacramento Athletics  AAA
Knee
March 15, 2025
Thomas left in the sixth inning of Saturday's spring game against the Rangers due to a knee injury, Martin Gallegos of MLB.com reports.
ANALYSIS
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Excelling at Triple-A level
OFOakland Athletics  AAA
August 7, 2024
Thomas owns a .306 average and .979 OPS across 165 plate appearances over 37 games with Triple-A Las Vegas since being promoted to the affiliate June 18.
ANALYSIS
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Moves up to Triple-A
OFOakland Athletics  AAA
June 19, 2024
The Athletics promoted Thomas from Double-A Midland to Triple-A Las Vegas on Tuesday. He went 2-for-3 with a double and a run scored in his Las Vegas debut in Tuesday's 8-4 win over Tacoma.
ANALYSIS
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