Jackson Kowar • Basenerd

Loading games...

Jackson Kowar

Norfolk Tides • Pitcher

Age 30 • 6' 5" • 200 lb

Bats: R • Throws: R

MLB Debut: 2021-06-07

Born: Weddington , NC • USA

Draft: 2018

2025 Stats

ERA

4.24

WHIP

1.24

17.0

HLD

Career Stats

ERA

8.21

WHIP

1.93

91.0

HLD

Year-by-Year Pitching

Year	Team	G	GS	IP	W	L	SV	SO	ERA	WHIP
2021	KC	9	8	30.1	—	6	—	29	11.27	2.08
2022	KC	7	—	15.2	—	—	—	17	9.77	2.43
2023	KC	23	—	28.0	2	—	—	29	6.43	1.93
2025	SEA	15	—	17.0	2	—	—	15	4.24	1.24

Spring Training

Pitching

Year	Team	G	GS	IP	W	L	SV	SO	ERA	WHIP
2020	KC	5	—	5.1	—	1	—	4	11.81	2.63
2021	KC	6	3	11.2	2	2	—	10	10.80	2.23
2022	KC	4	1	7.0	—	—	—	6	5.14	1.57
2023	KC	4	1	8.0	1	1	—	12	6.75	1.63
2024	SEA	2	—	2.0	—	—	—	3	0.00	0.00
2026	BAL	6	—	6.0	1	1	1	4	1.50	1.50

Game Logs

Season selector loads one year at a time.

Pitching

Date	Opponent	IP	H	R	ER	BB	SO	HR
2025-08-18	@ PHI	1.0	2	1	1	2	1	0
2025-08-17	@ NYM	1.0	1	0	0	1	2	0
2025-08-15	@ NYM	0.1	3	3	3	0	1	1
2025-08-14	@ BAL	1.0	0	0	0	0	1	0
2025-08-07	vs CWS	1.0	0	0	0	0	0	0
2025-08-05	vs CWS	1.0	2	2	2	0	1	2
2025-07-29	@ ATH	2.0	0	0	0	0	1	0
2025-07-27	@ LAA	1.0	1	0	0	1	0	0
2025-06-14	vs CLE	1.0	0	0	0	0	1	0
2025-06-10	@ AZ	2.0	1	1	1	0	3	1
2025-06-07	@ LAA	0.2	1	1	1	3	1	0
2025-06-06	@ LAA	1.0	1	0	0	0	1	0
2025-06-03	vs BAL	2.0	0	0	0	0	1	0
2025-05-31	vs MIN	1.0	1	0	0	0	0	0
2025-05-28	vs WSH	1.0	1	0	0	0	1	0

Transactions

Entire history • newest first.

2026-03-26

Baltimore Orioles sent RHP Jackson Kowar outright to Norfolk Tides.

2026-03-25

Baltimore Orioles designated RHP Jackson Kowar for assignment.

2026-02-14

Minnesota Twins traded RHP Jackson Kowar to Baltimore Orioles for cash.

2026-02-12

Minnesota Twins designated RHP Jackson Kowar for assignment.

2026-02-03

Minnesota Twins claimed RHP Jackson Kowar off waivers from Seattle Mariners.

2026-01-27

Seattle Mariners designated RHP Jackson Kowar for assignment.

2025-10-21

Seattle Mariners activated RHP Jackson Kowar.

2025-10-04

RHP Jackson Kowar roster status changed by Seattle Mariners.

2025-09-29

Seattle Mariners activated RHP Jackson Kowar.

2025-08-19

Seattle Mariners placed RHP Jackson Kowar on the 15-day injured list. Right shoulder impingement.

2025-08-19

Seattle Mariners optioned RHP Jackson Kowar to Tacoma Rainiers.

2025-08-01

Seattle Mariners recalled RHP Jackson Kowar from Tacoma Rainiers.

2025-07-30

Seattle Mariners optioned RHP Jackson Kowar to Tacoma Rainiers.

2025-07-24

Seattle Mariners recalled RHP Jackson Kowar from Tacoma Rainiers.

2025-06-16

Seattle Mariners optioned RHP Jackson Kowar to Tacoma Rainiers.

2025-05-28

Seattle Mariners activated RHP Jackson Kowar from the 60-day injured list.

2025-05-10

Seattle Mariners sent RHP Jackson Kowar on a rehab assignment to Tacoma Rainiers.

2025-05-03

Seattle Mariners sent RHP Jackson Kowar on a rehab assignment to ACL Mariners.

2025-05-03

Seattle Mariners sent RHP Jackson Kowar on a rehab assignment to ACL Mariners.

2025-03-02

Seattle Mariners placed RHP Jackson Kowar on the 60-day injured list. Tommy John surgery recovery.

2024-11-04

Seattle Mariners activated RHP Jackson Kowar from the 60-day injured list.

2024-03-10

Seattle Mariners placed RHP Jackson Kowar on the 60-day injured list. Right ulnar collateral ligament tear.

2023-12-03

Seattle Mariners activated RHP Jackson Kowar.

2023-12-03

Atlanta Braves traded RHP Cole Phillips and RHP Jackson Kowar to Seattle Mariners for LHP Marco Gonzales, OF Jarred Kelenic and 1B Evan White.

2023-11-17

Atlanta Braves traded RHP Kyle Wright to Kansas City Royals for RHP Jackson Kowar.

2023-08-17

Kansas City Royals recalled RHP Jackson Kowar from Omaha Storm Chasers.

2023-08-02