On MLB 40-man: YES
Acquired: Trade (ATL) Dec'23
| Sun 6/01 | Mon 6/02 | Tue 6/03 |
|---|---|---|
| MIN 1-0 9• | --- | BAL 9:40 PM EDT |
Positions
RP
2026 Earned Positions
RP
All Leagues
Average $0.00
Median $0.00
Ottoneu Classic (4x4)
Average $0.00
Median $0.00
Roster%
0%
Change
7Day
0%
30Day
0%
2025 OPL Round 2
OPL Roster%
0.00%
OPL Average Salary
$0.00
May 28, 2025 6:09 PM : The Mariners reinstated Kowar (elbow) from the 60-day injured list Wednesday.
Analysis: Kowar will return to the majors after missing the entire 2024 season following Tommy John surgery last March. The 28-year-old right hander posted a 2.57 ERA and 1.29 WHIP across seven innings during his rehab assignment and did not yield a run in each of his last three outings. Kowar will be available to make his 2025 debut out of the Mariners' bullpen against the Nationals on Wednesday. Logan Evans was optioned to Triple-A Tacoma in a corresponding move.
MLB Stats
Pitching
| Year | Team | G | GS | IP | K | HR9 | ERA | WHIP |
|---|---|---|---|---|---|---|---|---|
| 2021 | KCR | 9 | 8 | 30.1 | 29 | 2.07693 | 11.27474 | 2.07693 |
| 2022 | KCR | 7 | 0 | 15.2 | 17 | 2.29787 | 9.76594 | 2.42553 |
| 2023 | KCR | 23 | 0 | 28.0 | 29 | 1.28571 | 6.42857 | 1.92857 |
| 2025 | SEA | 2 | 0 | 2.0 | 1 | 0.00000 | 0.00000 | 1.00000 |
MILB Stats
Pitching
| Year | Team | G | GS | IP | K | HR9 | ERA | WHIP |
|---|---|---|---|---|---|---|---|---|
| 2018 | KCR (A) | 9 | 9 | 26.1 | 22 | 0.68354 | 3.41772 | 1.17722 |
| 2019 | KCR (A+) | 13 | 13 | 74.0 | 66 | 0.48649 | 3.52703 | 1.21622 |
| 2019 | KCR (AA) | 13 | 13 | 74.1 | 78 | 0.96861 | 3.51121 | 1.26457 |
| 2021 | KCR (AAA) | 17 | 16 | 80.2 | 115 | 0.78099 | 3.45868 | 1.23967 |
| 2022 | KCR (AAA) | 20 | 20 | 83.1 | 88 | 1.51200 | 6.15600 | 1.65600 |
| 2023 | KCR (AAA) | 30 | 1 | 45.1 | 49 | 0.79412 | 5.95588 | 1.83088 |
| 2025 | SEA (CPX) | 2 | 2 | 2.0 | 1 | 0.00000 | 4.50000 | 1.00000 |
| 2025 | SEA (AAA) | 6 | 0 | 5.0 | 3 | 0.00000 | 1.80000 | 1.40000 |
Recent Games
Last 10 MLB Games
| Date | Team | Opponent | GS | Win | Save | Hold | IP | TBF | R | ER | H | K | BB | HBP | HR |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| May 31, 2025 | SEA | MIN | 0 | 0 | 0 | 1 | 1.0 | 4 | 0 | 0 | 1 | 0 | 0 | 1 | 0 |
| May 28, 2025 | SEA | WSN | 0 | 0 | 0 | 0 | 1.0 | 4 | 0 | 0 | 1 | 1 | 0 | 0 | 0 |
| Sep 27, 2023 | KCR | @DET | 0 | 0 | 0 | 0 | 1.2 | 9 | 2 | 2 | 2 | 1 | 2 | 0 | 1 |
| Sep 26, 2023 | KCR | @DET | 0 | 0 | 0 | 0 | 0.1 | 3 | 1 | 1 | 2 | 0 | 1 | 0 | 0 |
| Sep 22, 2023 | KCR | @HOU | 0 | 0 | 0 | 0 | 0.1 | 5 | 3 | 3 | 3 | 0 | 1 | 0 | 1 |
| Sep 18, 2023 | KCR | CLE | 0 | 1 | 0 | 0 | 1.0 | 4 | 0 | 0 | 1 | 2 | 0 | 0 | 0 |
| Sep 17, 2023 | KCR | HOU | 0 | 0 | 0 | 0 | 1.0 | 3 | 0 | 0 | 0 | 1 | 0 | 0 | 0 |
| Sep 12, 2023 | KCR | @CHW | 0 | 0 | 0 | 0 | 1.2 | 6 | 0 | 0 | 0 | 2 | 1 | 0 | 0 |
| Sep 10, 2023 | KCR | @TOR | 0 | 0 | 0 | 0 | 0.2 | 4 | 0 | 0 | 2 | 0 | 0 | 0 | 0 |
| Sep 5, 2023 | KCR | CHW | 0 | 1 | 0 | 0 | 1.0 | 3 | 0 | 0 | 0 | 1 | 0 | 0 | 0 |
| Totals | 0 | 2 | 0 | 1 | 9.2 | 45 | 6 | 6 | 12 | 8 | 5 | 1 | 2 | ||
Last 10 MILB Games
| Date | Level | Team | Opponent | GS | Win | Save | IP | TBF | R | ER | H | K | BB | HBP | HR |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| May 24, 2025 | AAA | TAC | @ELP | 0 | 0 | 0 | 1.0 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| May 22, 2025 | AAA | TAC | @ELP | 0 | 0 | 0 | 0.1 | 2 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
| May 20, 2025 | AAA | TAC | @ELP | 0 | 1 | 0 | 1.0 | 5 | 0 | 0 | 1 | 0 | 1 | 0 | 0 |
| May 17, 2025 | AAA | TAC | @ABQ | 0 | 0 | 0 | 0.2 | 5 | 1 | 1 | 2 | 2 | 1 | 0 | 0 |
| May 14, 2025 | AAA | TAC | @ABQ | 0 | 0 | 0 | 1.0 | 5 | 0 | 0 | 0 | 1 | 1 | 1 | 0 |
| May 10, 2025 | AAA | TAC | SAC | 0 | 0 | 0 | 1.0 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| May 6, 2025 | CPX | A-MRN | A-BRW | 1 | 0 | 0 | 1.0 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| May 3, 2025 | CPX | A-MRN | @A-ROY | 1 | 0 | 0 | 1.0 | 6 | 2 | 1 | 2 | 1 | 0 | 0 | 0 |
| Aug 15, 2023 | AAA | OMA | @TOL | 0 | 0 | 0 | 1.0 | 5 | 1 | 1 | 2 | 1 | 0 | 0 | 0 |
| Aug 12, 2023 | AAA | OMA | IOW | 0 | 0 | 0 | 2.2 | 11 | 0 | 0 | 2 | 3 | 0 | 1 | 0 |
| Totals | 2 | 1 | 0 | 10.2 | 48 | 4 | 3 | 10 | 8 | 3 | 2 | 0 | |||
Avg Salary & Roster%
Last 30 days
2026 Position Eligibility Progress
To gain eligibility, a player must have 5 GS or 10 G at a position in the majors, or 20 G at a position in the minors.
Transaction History
| Date | Transaction Type | Team | Salary |
|---|---|---|---|
| June 9, 2021 10:22 AM | add | Dave Stewart's Balls | $2 |
| September 1, 2021 4:02 PM | move | gerbils on speed (from Dave Stewart's Balls) | $2 |
| October 9, 2021 4:51 AM | increase | gerbils on speed | $4 |
| May 7, 2022 10:30 AM | cut | gerbils on speed | $2 |
Recent Trades for Jackson Kowar in Ottoneu Classic (4x4)
| Date | Proposing Team | Proposing Team Gives | Accepting Team | Accepting Team Gives |
|---|---|---|---|---|
| August 31, 2021 4:01 PM | Dave Stewart's Balls |
Jackson Kowar KCR RP R $2 |
gerbils on speed |
Raisel Iglesias CIN RP R $9 $9 loan |