On MLB 40-man: YES
Acquired: Trade (ATL) Dec'23
| Sun 7/27 | Mon 7/28 | Tue 7/29 |
|---|---|---|
| @LAA 4:07 PM EDT | @ATH 10:05 PM EDT | @ATH 10:05 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
All Leagues
Average $1.00
Median $1.00
Ottoneu Classic (4x4)
Average $2.00
Median $2.00
Roster%
0%
Change
7Day
0%
30Day
0%
2025 OPL Round 4
OPL Roster%
0.00%
OPL Average Salary
$0.00
July 24, 2025 1:54 PM : The Mariners recalled Kowar from Triple-A Tacoma on Thursday.
Analysis: Since being optioned to Triple-A in mid-June, Kowar has given up six runs (three earned) over nine innings while striking out 12 batters and walking seven. He owns a 2.08 ERA through 8.2 frames with the Mariners this year, but his career 8.38 ERA will keep him limited to a low-leverage role in Seattle's bullpen. Brandyn Garcia was optioned to 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 | 7 | 0 | 8.2 | 8 | 1.03846 | 2.07692 | 0.92308 |
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) | 16 | 0 | 14.0 | 15 | 0.00000 | 2.57143 | 1.35714 |
Recent Games
Last 10 MLB Games
| Date | Team | Opponent | GS | Win | Save | Hold | IP | TBF | R | ER | H | K | BB | HBP | HR |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Jun 14, 2025 | SEA | CLE | 0 | 1 | 0 | 0 | 1.0 | 3 | 0 | 0 | 0 | 1 | 0 | 0 | 0 |
| Jun 10, 2025 | SEA | @ARI | 0 | 0 | 0 | 0 | 2.0 | 7 | 1 | 1 | 1 | 3 | 0 | 0 | 1 |
| Jun 7, 2025 | SEA | @LAA | 0 | 0 | 0 | 0 | 0.2 | 6 | 1 | 1 | 1 | 1 | 3 | 0 | 0 |
| Jun 6, 2025 | SEA | @LAA | 0 | 0 | 0 | 0 | 1.0 | 4 | 0 | 0 | 1 | 1 | 0 | 0 | 0 |
| Jun 3, 2025 | SEA | BAL | 0 | 0 | 0 | 0 | 2.0 | 6 | 0 | 0 | 0 | 1 | 0 | 0 | 0 |
| 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 |
| Totals | 0 | 1 | 0 | 1 | 11.0 | 51 | 8 | 8 | 12 | 9 | 7 | 1 | 3 | ||
Last 10 MILB Games
| Date | Level | Team | Opponent | GS | Win | Save | IP | TBF | R | ER | H | K | BB | HBP | HR |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Jul 19, 2025 | AAA | TAC | ELP | 0 | 0 | 0 | 1.0 | 3 | 0 | 0 | 0 | 2 | 0 | 0 | 0 |
| Jul 13, 2025 | AAA | TAC | @RNO | 0 | 0 | 1 | 0.1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Jul 11, 2025 | AAA | TAC | @RNO | 0 | 0 | 0 | 1.0 | 7 | 2 | 2 | 2 | 2 | 2 | 0 | 0 |
| Jul 8, 2025 | AAA | TAC | @RNO | 0 | 0 | 0 | 1.0 | 5 | 0 | 0 | 1 | 0 | 1 | 0 | 0 |
| Jul 4, 2025 | AAA | TAC | @SL | 0 | 0 | 0 | 1.0 | 3 | 0 | 0 | 0 | 3 | 0 | 0 | 0 |
| Jul 1, 2025 | AAA | TAC | SL | 0 | 0 | 0 | 1.0 | 5 | 0 | 0 | 0 | 0 | 1 | 1 | 0 |
| Jun 28, 2025 | AAA | TAC | @RR | 0 | 0 | 0 | 0.2 | 6 | 4 | 1 | 1 | 1 | 2 | 0 | 0 |
| Jun 21, 2025 | AAA | TAC | ABQ | 0 | 0 | 0 | 1.0 | 4 | 0 | 0 | 0 | 1 | 1 | 0 | 0 |
| Jun 19, 2025 | AAA | TAC | ABQ | 0 | 0 | 1 | 1.0 | 4 | 0 | 0 | 1 | 2 | 0 | 0 | 0 |
| Jun 17, 2025 | AAA | TAC | ABQ | 0 | 0 | 0 | 1.0 | 3 | 0 | 0 | 0 | 1 | 0 | 0 | 0 |
| Totals | 0 | 0 | 2 | 9.0 | 41 | 6 | 3 | 5 | 12 | 7 | 1 | 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 SEA ST RP R $2 |
gerbils on speed |
Raisel Iglesias CIN RP R $9 $9 loan |