Thomas Harrington

Thomas Harrington

24-Year-Old PitcherRP
Pittsburgh Pirates AAA
2026 Fantasy Outlook
Harrington looked overmatched in his first taste of the majors last year, giving up nine runs in eight innings across two April starts and six runs in 0.2 innings in an August start. He spent most of the year at Triple-A, logging a 5.34 ERA, 1.31 WHIP and 90 strikeouts in 96 innings. Coming into 2025, Harrington had a lot of fans, as he'd displayed pinpoint control in 2024 (4.1 BB%) across Double-A and Triple-A, and while he didn't have monster stuff, he had a deep pitch mix. His walk rates may have been elevated in 2025 because he wasn't trusting his stuff to play in the zone, but it was pretty clear last season that significant improvements are needed before he's ready to for another shot in the big-league rotation. Read Past Outlooks
RANKS
Rest of Season
From Preseason
#363
ADP
Signed a one-year contract with the Pirates in March of 2026.
Headed back to Triple-A
PPittsburgh Pirates  AAA
March 9, 2026
The Pirates optioned Harrington to Triple-A Indianapolis on Monday.
Analysis
Harrington was one of eight players dismissed from big-league camp in the Pirates' latest round of roster cuts. The 24-year-old righty parlayed a strong showing last spring into a spot in the Pirates' season-opening rotation, but he made just one start and one extended relief appearance before he was sent back to the minors. He went on to make another long-relief appearance for Pittsburgh in early August, but he struggled across all three of his big-league outings and didn't fare much better over more extended action at Triple-A (5.34 ERA and 1.31 WHIP in 96 innings). Harrington remains an interesting prospect, but he's since been passed up on the organizational depth chart by a trio of young arms (Bubba Chandler, Braxton Ashcraft and Hunter Barco) and may not be in store for another look in the big-league rotation anytime soon.
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Pitching Stats
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2025 MLB Game Log
2025
2025 MLB Game Log
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Scoring
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Left/Right Pitching Splits
Since 2024
 
 
-37%
BAA vs RHP
2026
No Stats
2025
 
 
-37%
BAA vs RHP
2024
No Stats
BAA Batters K BB H 2B 3B HR
Since 2024vs Left .571 17 5 2 8 2 0 1
Since 2024vs Right .357 33 2 5 10 3 0 2
2026vs Left 0 0 0 0 0 0 0 0
2026vs Right 0 0 0 0 0 0 0 0
2025vs Left .571 17 5 2 8 2 0 1
2025vs Right .357 33 2 5 10 3 0 2
2024vs Left 0 0 0 0 0 0 0 0
2024vs Right 0 0 0 0 0 0 0 0
Home/Away Pitching Splits
Since 2024
 
 
-71%
ERA at Home
2026
No Stats
2025
 
 
-71%
ERA at Home
2024
No Stats
ERA WHIP IP W L SV K/9 BB/9 HR/9
Since 2024Home 6.75 1.25 4.0 0 0 1 11.3 2.3 4.5
Since 2024Away 23.14 4.29 4.2 0 1 0 3.9 11.6 1.9
2026Home 0 0 0 0 0 0 0 0 0
2026Away 0 0 0 0 0 0 0 0 0
2025Home 6.75 1.25 4.0 0 0 1 11.3 2.3 4.5
2025Away 23.14 4.29 4.2 0 1 0 3.9 11.6 1.9
2024Home 0 0 0 0 0 0 0 0 0
2024Away 0 0 0 0 0 0 0 0 0
Minor League Left/Right Pitching Splits (AAA)
Since 2024
 
 
-4%
BAA vs LHP
2026
 
 
-11%
BAA vs LHP
2025
 
 
-14%
BAA vs RHP
2024
 
 
-42%
BAA vs LHP
BAA Batters K BB H 2B 3B HR
Since 2024vs Left .233 349 72 25 74 13 4 17
Since 2024vs Right .242 319 72 24 68 11 2 9
2026vs Left .222 52 9 5 10 3 0 1
2026vs Right .250 22 7 3 4 1 0 0
2025vs Left .268 216 45 19 52 8 4 14
2025vs Right .230 199 45 14 41 5 2 6
2024vs Left .152 81 18 1 12 2 0 2
2024vs Right .264 98 20 7 23 5 0 3
Prospect Rankings History
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Recent RotoWire Articles Featuring Thomas Harrington See More
Recent RotoWire Articles Featuring Thomas Harrington See More
2025 Fantasy Outlook
Harrington qualifies as a sleeper for both dynasty and redraft leagues. The 6-foot-2 righty sometimes gets overlooked in a system with several more famous and hard-throwing young pitchers, but Harrington has good stuff in his own right and excellent command. He logged walk rates below five percent at Double-A (3.7 BB%) and Triple-A (4.5 BB%) while also limiting damage (nine home runs allowed in 114.1 innings). Harrington's fastball sits in the low-90s but has good life, and he throws a total of five pitches that are at least average, with his slider and splitter flashing plus. There's not much evidence that Harrington will miss enough bats to be an SP2 or SP3 in fantasy, but when a 23-year-old starter has this type of command, it can sometimes lead to more fantasy value than the pure stuff would portend. He has an outside chance to compete for a rotation spot in the spring and should be up in the first half one way or another.
More Fantasy News
Works four scoreless innings
PPittsburgh Pirates  AAA
March 7, 2026
Harrington allowed two hits and one walk while striking out two across four scoreless innings during Saturday's Grapefruit League game against the Tigers.
Analysis
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Looks healthy for spring
PPittsburgh Pirates  AAA
February 15, 2026
Harrington (groin) tossed a bullpen session Sunday, Colin Beazley of the Pittsburgh Post-Gazette reports.
Analysis
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Battles groin injury down stretch
PPittsburgh Pirates  AAA
September 30, 2025
Harrington missed the final few weeks of the season for Triple-A Indianapolis due to a right groin injury, Dominic Campbell of SI.com reports.
Analysis
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Goes back on IL
PPittsburgh Pirates  AAA
Undisclosed
September 2, 2025
Triple-A Indianapolis placed Harrington on its 7-day injured list Friday due to an unspecified injury.
Analysis
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Shelved at Triple-A
PPittsburgh Pirates  AAA
Undisclosed
August 11, 2025
Triple-A Indianapolis placed Harrington on its 7-day injured list Sunday due to an undisclosed injury.
Analysis
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Latest Fantasy Rumors
Set to be promoted?
PPittsburgh Pirates  AAA
April 1, 2025
Harrington is expected to be promoted to the big-league club to start Tuesday against the Rays, according to Noah Hiles of the Pittsburgh Post-Gazette.
Analysis
It's worth noting that Harrington hasn't been added to the 40-man roster yet, so the Pirates will need to make a corresponding move to open up a spot for the 23-year-old before he can officially be selected. He pitched 68.1 innings at Double-A in 2024, posting a 2.24 ERA and a 27.4 percent strikeout rate.
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