On MLB 40-man: YES
Acquired: Trade (ATL) Dec'23
| Tue 6/17 | Wed 6/18 | Thu 6/19 |
|---|---|---|
| BOS 9:40 PM EDT | BOS 4:10 PM EDT | --- |
Positions
RP
2026 Earned Positions
RP
All Leagues
Average $0.00
Median $0.00
H2H FanGraphs Points
Average $0.00
Median $0.00
All Leagues
Average $1.00
Median $1.00
H2H FanGraphs Points
Average $1.40
Median $1.00
Roster%
0%
Change
7Day
0%
30Day
0%
2025 OPL Round 3
OPL Roster%
0.00%
OPL Average Salary
$0.00
June 16, 2025 5:50 PM : The Mariners optioned Kowar to Triple-A Tacoma on Monday, Shannon Drayer of SeattleSports.com reports.
Analysis: The transaction frees a spot on the active roster for the return of Logan Gilbert (elbow). Kowar made seven appearances after being activated late last month, yielding two runs with an 8:3 K:BB over 8.2 frames.
MLB Stats
Pitching
| Year | Team | G | GS | IP | SV | HLD | K | H | BB | HBP | HR | P/IP | Pts |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2021 | KCR | 9 | 8 | 30.1 | 0 | 0 | 29 | 43 | 20 | 2 | 7 | 0.61 | 18.57 |
| 2022 | KCR | 7 | 0 | 15.2 | 0 | 2 | 17 | 27 | 11 | 0 | 4 | 0.35 | 5.53 |
| 2023 | KCR | 23 | 0 | 28.0 | 0 | 0 | 29 | 34 | 20 | 1 | 4 | 2.31 | 64.60 |
| 2025 | SEA | 7 | 0 | 8.2 | 0 | 1 | 8 | 5 | 3 | 1 | 1 | 5.4 | 46.83 |
MILB Stats
Pitching
| Year | Team | G | GS | IP | SV | HLD | K | H | BB | HBP | HR | P/IP | Pts |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2018 | KCR (A) | 9 | 9 | 26.1 | 0 | 0 | 22 | 19 | 12 | 0 | 2 | 4.89 | 128.87 |
| 2019 | KCR (A+) | 13 | 13 | 74.0 | 0 | 0 | 66 | 68 | 22 | 10 | 4 | 4.83 | 357.60 |
| 2019 | KCR (AA) | 13 | 13 | 74.1 | 0 | 0 | 78 | 73 | 21 | 2 | 8 | 4.69 | 348.87 |
| 2021 | KCR (AAA) | 17 | 16 | 80.2 | 0 | 0 | 115 | 66 | 34 | 4 | 7 | 5.64 | 455.23 |
| 2022 | KCR (AAA) | 20 | 20 | 83.1 | 0 | 0 | 88 | 95 | 43 | 8 | 14 | 2.65 | 220.47 |
| 2023 | KCR (AAA) | 30 | 1 | 45.1 | 2 | 3 | 49 | 51 | 32 | 6 | 4 | 3.52 | 159.67 |
| 2025 | SEA (CPX) | 2 | 2 | 2.0 | 0 | 0 | 1 | 2 | 0 | 0 | 0 | 5.8 | 11.60 |
| 2025 | SEA (AAA) | 6 | 0 | 5.0 | 0 | 1 | 3 | 4 | 3 | 1 | 0 | 4.92 | 24.60 |
Recent Games
Last 10 MLB Games
| Date | Team | Opponent | GS | Win | Save | Hold | IP | TBF | R | ER | H | K | BB | HBP | HR | Pts |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Jun 14, 2025 | SEA | CLE | 0 | 1 | 0 | 0 | 1.0 | 3 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 9.40 |
| Jun 10, 2025 | SEA | @ARI | 0 | 0 | 0 | 0 | 2.0 | 7 | 1 | 1 | 1 | 3 | 0 | 0 | 1 | 5.90 |
| Jun 7, 2025 | SEA | @LAA | 0 | 0 | 0 | 0 | 0.2 | 6 | 1 | 1 | 1 | 1 | 3 | 0 | 0 | -4.67 |
| Jun 6, 2025 | SEA | @LAA | 0 | 0 | 0 | 0 | 1.0 | 4 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 6.80 |
| Jun 3, 2025 | SEA | BAL | 0 | 0 | 0 | 0 | 2.0 | 6 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 16.80 |
| May 31, 2025 | SEA | MIN | 0 | 0 | 0 | 1 | 1.0 | 4 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 5.80 |
| May 28, 2025 | SEA | WSN | 0 | 0 | 0 | 0 | 1.0 | 4 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 6.80 |
| Sep 27, 2023 | KCR | @DET | 0 | 0 | 0 | 0 | 1.2 | 9 | 2 | 2 | 2 | 1 | 2 | 0 | 1 | -9.17 |
| Sep 26, 2023 | KCR | @DET | 0 | 0 | 0 | 0 | 0.1 | 3 | 1 | 1 | 2 | 0 | 1 | 0 | 0 | -5.73 |
| Sep 22, 2023 | KCR | @HOU | 0 | 0 | 0 | 0 | 0.1 | 5 | 3 | 3 | 3 | 0 | 1 | 0 | 1 | -20.63 |
| Totals | 0 | 1 | 0 | 1 | 11.0 | 51 | 8 | 8 | 12 | 9 | 7 | 1 | 3 | 11.30 | ||
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 |
|---|---|---|---|
| April 4, 2021 9:08 PM | add | Yes, I Confess | $1 |
| April 25, 2021 9:49 AM | move | Cycle Man (from Yes, I Confess) | $1 |
| October 9, 2021 4:24 AM | increase | Cycle Man | $3 |
| March 13, 2022 5:58 PM | cut | Cycle Man | $0 |
Recent Trades for Jackson Kowar in H2H FanGraphs Points
| Date | Proposing Team | Proposing Team Gives | Accepting Team | Accepting Team Gives |
|---|---|---|---|---|
| June 19, 2021 5:42 PM | The Balking Dead 🧟♂️ |
Gerrit Cole NYY SP R $45 60IL Hyun Jin Ryu TOR RP L $16 LaMonte Wade Jr. SFG 1B/OF L $1 Jackson Kowar KCR RP R $2 $39 loan |
I did it all for the nootbaar |
Vidal Brujan TBR 2B/SS/3B/OF S $4 Jake Fraley SEA OF L $3 Jarred Kelenic ATL AAA OF L $15 Tarik Skubal DET SP L $3 |
| April 24, 2021 9:48 AM | Yes, I Confess |
Anderson Tejeda STL ST Util S $1 Jackson Kowar KCR RP R $1 |
Cycle Man |
Aaron Hicks NYY OF S $2 |