2025 Stats
W-L
1-0
ERA
5.60
WHIP
1.30
K
11
SV
0
Rest-of-Season Projections
Reinstated from IL
The Mariners reinstated Thornton (abdomen) from the 15-day injured list Saturday.
ANALYSIS
Thornton landed on the 15-day injured list May 9 due to appendicitis, and it took three weeks for him to recover enough to embark on a rehab assignment with Triple-A Tacoma. He'll claim the spot in the Mariners' bullpen that was vacated by Casey Lawrence, who was designated for assignment in a corresponding move. Thornton posted a 5.87 ERA, 1.30 WHIP, five holds and an 11:4 K:BB across 15.1 innings prior to his stint on the IL.
Thornton landed on the 15-day injured list May 9 due to appendicitis, and it took three weeks for him to recover enough to embark on a rehab assignment with Triple-A Tacoma. He'll claim the spot in the Mariners' bullpen that was vacated by Casey Lawrence, who was designated for assignment in a corresponding move. Thornton posted a 5.87 ERA, 1.30 WHIP, five holds and an 11:4 K:BB across 15.1 innings prior to his stint on the IL.
Pitching Stats
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2025
2024
2023
2022
2021
2020
2019
Minor League Game Log
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Pitching Appearances Breakdown
Average Pitch Count
16
Last 10 Games
18
Last 5 Games
22
How many pitches does Trent Thornton 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 Trent Thornton 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
-21%
BAA vs RHP
2025
-14%
BAA vs RHP
| BAA | K | BB | H | HR | ||||
|---|---|---|---|---|---|---|---|---|
| Since 2023vs Left | .277 | 52 | 12 | 57 | 9 | |||
| Since 2023vs Right | .219 | 62 | 18 | 54 | 9 | |||
| 2025vs Left | .281 | 7 | 1 | 9 | 3 | |||
| 2025vs Right | .243 | 4 | 4 | 9 | 2 | |||
| 2024vs Left | .262 | 38 | 8 | 32 | 3 | |||
| 2024vs Right | .217 | 39 | 11 | 31 | 5 | |||
| 2023vs Left | .308 | 7 | 3 | 16 | 3 | |||
| 2023vs Right | .209 | 19 | 3 | 14 | 2 | |||
| More Splits→ | View More Split Stats | |||||||
Home/Away Pitching Splits
Since 2023
-15%
ERA on Road
2025
-62%
ERA on Road
| ERA | WHIP | IP | K/9 | BB/9 | |||||
|---|---|---|---|---|---|---|---|---|---|
| Since 2023Home | 3.77 | 1.11 | 62.0 | 9.0 | 1.9 | ||||
| Since 2023Away | 3.19 | 1.21 | 59.1 | 7.9 | 2.6 | ||||
| 2025Home | 9.00 | 1.29 | 7.0 | 7.7 | 1.3 | ||||
| 2025Away | 3.38 | 1.31 | 10.2 | 4.2 | 3.4 | ||||
| 2024Home | 3.47 | 1.02 | 36.1 | 9.7 | 2.0 | ||||
| 2024Away | 3.75 | 1.25 | 36.0 | 9.5 | 2.8 | ||||
| 2023Home | 2.41 | 1.23 | 18.2 | 8.2 | 1.9 | ||||
| 2023Away | 1.42 | 1.03 | 12.2 | 6.4 | 1.4 | ||||
| More Splits→ | View More Split Stats | ||||||||
Stat Review
How does Trent Thornton 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
2.20K/9
5.6BB/9
2.5HR/9
2.5Fastball
94.4 mphERA
5.60WHIP
1.30BABIP
.251GB/FB
1.63Left On Base
75.0%Exit Velocity
86.1 mphBarrels/BBE
8.0%Spin Rate
2664 rpmBalls Hit 95+ MPH
31.0%Swinging Strike
9.4%Prospect Rankings History
Advanced Pitching Stats
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Defensive Stats
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Stats Vs Today's Lineup
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Past Fantasy Outlooks
2021
2020
Thornton was feared to have required Tommy John surgery, but he only needed surgery to remove loose bodies in his right elbow at the beginning of September. As a result, he should be ready for the start of the 2021 campaign. The right-hander battled elbow issues over most of the season in 2020, and he only made three starts as a result. Thornton's production was skewed by a limited sample, but he still improved to a 2.66 FIP, although his 5.22 SIERA left something to be desired. He showed promise during his rookie season in 2019, but it's not yet clear how he'll perform after surgery. Thornton has a five-pitch arsenal, but he has a middling 92.2 mph average fastball velocity, and his strikeout rate hasn't jumped off the page. The 27-year-old demonstrated some effectiveness over his first two years in the majors, but he hasn't done enough to warrant a roster spot in most fantasy leagues to begin 2021.
More Fantasy News
Starts rehab assignment
Thornton (abdomen) started a minor-league rehab assignment with Triple-A Tacoma on Friday, MLB.com reports.
ANALYSIS
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Placed on 15-day injured list
The Mariners placed Thornton on the 15-day injured list Friday with appendicitis.
ANALYSIS
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Avoids arbitration
The Mariners and Thornton avoided arbitration by agreeing to a one-year, $2 million contract Thursday, Daniel Kramer of MLB.com reports.
ANALYSIS
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Impressive for fourth win
Thornton (4-3) got the win against the Cardinals on Sunday, firing two scoreless innings during which he allowed a hit and recorded two strikeouts.
ANALYSIS
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Saddled with loss Tuesday
Thornton (3-3) took the loss against the Athletics on Tuesday, allowing an earned run on two hits and a walk over one-third of an inning. He struck out one.
ANALYSIS
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Latest Fantasy Rumors
Favorite for starting role
Thornton is the favorite to be named the fifth starter in the Blue Jays' rotation to begin the season, Scott Mitchell of TSN.ca reports.
ANALYSIS
Thornton surprisingly emerged to pitch the most innings for the big-league team in 2019. However, the club added a number of arms this offseason and also has multiple prospects who are close to major-league ready. That said, even if Thornton manages to earn a starting role out of camp, he'll need to perform well to maintain it.
Thornton surprisingly emerged to pitch the most innings for the big-league team in 2019. However, the club added a number of arms this offseason and also has multiple prospects who are close to major-league ready. That said, even if Thornton manages to earn a starting role out of camp, he'll need to perform well to maintain it.