2025 Stats
W-L
2-0
ERA
4.99
WHIP
1.30
K
21
SV
0
Rest-of-Season Projections
Signed a one-year, $2 million contract with the Mariners in January of 2025.
Should be fine after early exit
Thornton threw 2.1 scoreless innings of relief before exiting Saturday's eventual 10-7 loss to the Cubs due to heat exhaustion, per Daniel Kramer of MLB.com. He allowed one hit and two walks while fanning three.
Analysis
Thornton had to be helped off the field in the eighth inning, but he's not expected to require additional medical treatment away from the team. After throwing a season-high 51 pitches Saturday, Thornton figures to get a few days off before he's available out of Seattle's bullpen again anyway since he covered multiple frames. The 31-year-old right-hander missed about a month of action due to appendicitis earlier this year, and he's mostly struggled with a 6.35 ERA, 1.50 WHIP and 17:10 K:BB over 22.2 innings.
Thornton had to be helped off the field in the eighth inning, but he's not expected to require additional medical treatment away from the team. After throwing a season-high 51 pitches Saturday, Thornton figures to get a few days off before he's available out of Seattle's bullpen again anyway since he covered multiple frames. The 31-year-old right-hander missed about a month of action due to appendicitis earlier this year, and he's mostly struggled with a 6.35 ERA, 1.50 WHIP and 17:10 K:BB over 22.2 innings.
Pitching Stats
Loading Pitching Stats...
2025 MLB Game Log
2025
2024
2023
2022
2021
2020
2019
Minor League Game Log
Calculate Stats Over Time
Just click on any two dates.
Loading Minor League Pitching Game Log...
Pitching Appearances Breakdown
Average Pitch Count
19
Last 10 Games
26
Last 5 Games
17
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
-23%
BAA vs RHP
2025
-27%
BAA vs RHP
| BAA | K | BB | H | HR | ||||
|---|---|---|---|---|---|---|---|---|
| Since 2023vs Left | .276 | 57 | 19 | 63 | 9 | |||
| Since 2023vs Right | .212 | 67 | 19 | 57 | 10 | |||
| 2025vs Left | .278 | 12 | 8 | 15 | 3 | |||
| 2025vs Right | .203 | 9 | 5 | 12 | 3 | |||
| 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
-2%
ERA on Road
2025
-21%
ERA on Road
| ERA | WHIP | IP | K/9 | BB/9 | |||||
|---|---|---|---|---|---|---|---|---|---|
| Since 2023Home | 3.59 | 1.08 | 67.2 | 8.6 | 2.0 | ||||
| Since 2023Away | 3.51 | 1.28 | 66.2 | 8.0 | 3.1 | ||||
| 2025Home | 5.68 | 1.03 | 12.2 | 6.4 | 2.1 | ||||
| 2025Away | 4.50 | 1.50 | 18.0 | 6.0 | 5.0 | ||||
| 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
1.62K/9
6.2BB/9
3.8HR/9
1.8Fastball
94.3 mphERA
4.99WHIP
1.30BABIP
.243GB/FB
1.09Left On Base
69.6%Exit Velocity
83.6 mphBarrels/BBE
6.0%Spin Rate
2682 rpmBalls Hit 95+ MPH
27.4%Swinging Strike
9.0%Prospect Rankings History
Advanced Pitching Stats
Loading Advanced Pitching Stats...
Defensive Stats
Loading MLB Defensive Stats...
Stats Vs Today's Lineup
Want more matchup stats?
Loading Matchup Stats...
Our full team depth charts are reserved for RotoWire subscribers.
Subscribe Now
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
Reinstated from IL
The Mariners reinstated Thornton (abdomen) from the 15-day injured list Saturday.
Analysis
Subscribe now to instantly reveal our take on this news.
Subscribe now to instantly reveal our take on this news.
Starts rehab assignment
Thornton (abdomen) started a minor-league rehab assignment with Triple-A Tacoma on Friday, MLB.com reports.
Analysis
Subscribe now to instantly reveal our take on this news.
Subscribe now to instantly reveal our take on this news.
Placed on 15-day injured list
The Mariners placed Thornton on the 15-day injured list Friday with appendicitis.
Analysis
Subscribe now to instantly reveal our take on this news.
Subscribe now to instantly reveal our take on this news.
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
Subscribe now to instantly reveal our take on this news.
Subscribe now to instantly reveal our take on this news.
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
Subscribe now to instantly reveal our take on this news.
Subscribe now to instantly reveal our take on this news.
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.