7-Day IL
Injury Undisclosed
Est. Return 8/27/2025
2025 Stats
W-L
0-1
ERA
15.58
WHIP
2.88
K
7
SV
1
Rest-of-Season Projections
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. Read Past Outlooks
Signed a one-year contract with the Pirates in April of 2025.
Shelved at Triple-A
Triple-A Indianapolis placed Harrington on its 7-day injured list Sunday due to an undisclosed injury.
Analysis
After being demoted Aug. 2, Harrington rejoined the Indianapolis rotation Friday and apparently sustained an injury during that start. The right-hander possesses a spot on the Pirates' 40-man roster, but his injury coupled with his poor numbers at the Triple-A level this season (5.40 ERA, 1.33 WHIP in 95 innings) could hinder his chances of getting another look in the big-league rotation in 2025.
After being demoted Aug. 2, Harrington rejoined the Indianapolis rotation Friday and apparently sustained an injury during that start. The right-hander possesses a spot on the Pirates' 40-man roster, but his injury coupled with his poor numbers at the Triple-A level this season (5.40 ERA, 1.33 WHIP in 95 innings) could hinder his chances of getting another look in the big-league rotation in 2025.
Pitching Stats
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2025 MLB Game Log
2025
Minor League Game Log
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Pitching Appearances Breakdown
Average Pitch Count
67
Last 10 Games
67
Last 5 Games
67
How many pitches does Thomas Harrington generally throw?
1-10
11-20
21-30
31-40
41-50
51-60
61-70
71-80
81-90
91-100
101-110
111-120
121+
What part of the game does Thomas Harrington generally pitch?
1st
2nd
3rd
4th
5th
6th
7th
8th
9th
Extra
% Games Reaching Innings Threshold
% Games By Number of Innings Pitched
Left/Right Pitching Splits
Since 2023
-37%
BAA vs RHP
2025
-37%
BAA vs RHP
| BAA | K | BB | H | HR | |
|---|---|---|---|---|---|
| Since 2023vs Left | .571 | 5 | 2 | 8 | 1 |
| Since 2023vs Right | .357 | 2 | 5 | 10 | 2 |
| 2025vs Left | .571 | 5 | 2 | 8 | 1 |
| 2025vs Right | .357 | 2 | 5 | 10 | 2 |
| 2024vs Left | 0 | 0 | 0 | 0 | 0 |
| 2024vs Right | 0 | 0 | 0 | 0 | 0 |
| 2023vs Left | 0 | 0 | 0 | 0 | 0 |
| 2023vs Right | 0 | 0 | 0 | 0 | 0 |
Home/Away Pitching Splits
Since 2023
-71%
ERA at Home
2025
-71%
ERA at Home
| ERA | WHIP | IP | K/9 | BB/9 | |
|---|---|---|---|---|---|
| Since 2023Home | 6.75 | 1.25 | 4.0 | 11.3 | 2.3 |
| Since 2023Away | 23.14 | 4.29 | 4.2 | 3.9 | 11.6 |
| 2025Home | 6.75 | 1.25 | 4.0 | 11.3 | 2.3 |
| 2025Away | 23.14 | 4.29 | 4.2 | 3.9 | 11.6 |
| 2024Home | 0 | 0 | 0 | 0 | 0 |
| 2024Away | 0 | 0 | 0 | 0 | 0 |
| 2023Home | 0 | 0 | 0 | 0 | 0 |
| 2023Away | 0 | 0 | 0 | 0 | 0 |
Minor League Left/Right Pitching Splits (AAA)
Since 2023
-2%
BAA vs LHP
2025
-15%
BAA vs RHP
| BAA | K | BB | H | HR | |
|---|---|---|---|---|---|
| Since 2023vs Left | .237 | 62 | 20 | 64 | 16 |
| Since 2023vs Right | .242 | 65 | 21 | 64 | 9 |
| 2025vs Left | .272 | 44 | 19 | 52 | 14 |
| 2025vs Right | .230 | 45 | 14 | 41 | 6 |
| 2024vs Left | .152 | 18 | 1 | 12 | 2 |
| 2024vs Right | .264 | 20 | 7 | 23 | 3 |
| 2023vs Left | 0 | 0 | 0 | 0 | 0 |
| 2023vs Right | 0 | 0 | 0 | 0 | 0 |
Stat Review
How does Thomas Harrington compare to other relievers?
This section compares his stats with all relief pitcher seasons from the previous three seasons (minimum 30 innings)*. 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, Barrels/BBE %, Balls Hit 95+ MPH %, and Spin Rate are benchmarked against 2019 data (min 30 IP). See here for more exit velocity/barrels stats plus an explanation of current limitations with that data set.
* Exit Velocity, Barrels/BBE %, Balls Hit 95+ MPH %, and Spin Rate are benchmarked against 2019 data (min 30 IP). See here for more exit velocity/barrels stats plus an explanation of current limitations with that data set.
K/BB
1.00K/9
7.3BB/9
7.3HR/9
3.1Fastball
92.1 mphERA
15.58WHIP
2.88BABIP
.462GB/FB
1.00Left On Base
48.1%Exit Velocity
84.0 mphBarrels/BBE
6.8%Spin Rate
2026 rpmBalls Hit 95+ MPH
24.3%Swinging Strike
10.0%Prospect Rankings History
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Defensive Stats
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Stats Vs Today's Lineup
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More Fantasy News
Sent back to Triple-A
The Pirates optioned Harrington to Triple-A Indianapolis following Friday's game against the Rockies.
Analysis
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Joining Pirates
The Pirates recalled Harrington from Triple-A Indianapolis on Friday.
Analysis
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Heading back to Triple-A
The Pirates optioned Harrington to Triple-A Indianapolis on Thursday.
Analysis
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Earns lengthy save Monday
Harrington allowed three runs on four hits and one walk over four innings in Monday's 8-4 win over St. Louis. He struck out five and earned his first MLB save.
Analysis
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Potential to piggyback Monday
Harrington could piggyback Carmen Mlodzinski during Monday's game against the Cardinals, Noah Hiles of the Pittsburgh Post-Gazette reports.
Analysis
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Latest Fantasy Rumors
Set to be promoted?
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.
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.