Miles Mastrobuoni

Third base for Seattle

Age: 30, 185 lbs, 5'9"

Born: 10/31/1995, San Ramon, CA, USA

Sal: N/A

TRANSACTION REPORT 14 days

Back with Seattle.

The Mariners selected Mastrobuoni's contract from Triple-A Tacoma.

Seasons	City	GP	AB	SO	R	H	2B	3B	HR	TB	RBI	SB	CS	BB	IBB	GIDP	HBP	SH	SF	E	Avg	OBP	Slg	OPS	PPts	PPts/GP
2026	SEA	13	26	10	3	5	0	0	0	5	1	0	0	2	0	0	0	1	1	0	0.192	0.241	0.192	0.434	5.0	0.4
2025	SEA	76	152	29	20	38	4	0	1	45	12	6	3	17	0	2	0	5	1	1	0.250	0.324	0.296	0.620	45.0	0.6
2024	SEA	50	98	17	9	19	3	0	0	22	4	2	0	7	0	1	0	0	1	3	0.194	0.245	0.224	0.470	22.0	0.4
2023	CHC	61	133	32	24	32	5	0	1	40	5	13	1	13	0	1	0	3	0	3	0.241	0.308	0.301	0.609	40.0	0.7
2022	CHC	8	16	6	1	3	0	0	0	3	0	1	0	1	0	0	0	0	0	0	0.188	0.235	0.188	0.423	3.0	0.4

		208	425	94	57	97	12	0	2	115	22	22	4	40	0	4	0	9	3	7	0.213	0.271	0.240	0.511	115.0	0.5

Date	Opp	Res	AB	SO	R	H	2B	3B	HR	TB	RBI	SB	CS	BB	IBB	GIDP	HBP	SH	SF	E	Avg	OBP	Slg	OPS	PPts
7/12/2026	TB@	W8 - 2	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.000	-	-	-	0.0
7/11/2026	TB@	L1 - 6	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.000	0.000	0.000	0.000	0.0
7/10/2026	TB@	L2 - 7	2	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.000	0.000	0.000	0.000	0.0
7/7/2026	MIA@	L5 - 6	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.000	-	-	-	0.0
7/4/2026	TOR	W11 - 0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.000	-	-	-	0.0
6/18/2026	BAL	W3 - 0	3	1	0	1	0	0	0	1	0	0	0	0	0	0	0	0	0	0	0.333	0.333	1.000	1.333	1.0
6/17/2026	BAL	L3 - 5	3	2	0	1	0	0	0	1	0	0	0	0	0	0	0	0	0	0	0.333	0.333	1.000	1.333	1.0
6/16/2026	BAL	W3 - 1	1	1	1	0	0	0	0	0	0	0	0	1	0	0	0	1	0	0	0.000	0.500	0.000	0.500	0.0
6/14/2026	WSH@	L1 - 10	3	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.000	0.000	0.000	0.000	0.0
6/13/2026	WSH@	L3 - 8	3	1	1	0	0	0	0	0	0	0	0	1	0	0	0	0	0	0	0.000	0.250	0.000	0.250	0.0

			16	6	2	2	0	0	0	2	0	0	0	2	0	0	0	1	0	0	0.067	0.142	0.200	0.342	2.0

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Date	Visit.	Home	Time
7/18/2026	Giants	Mariners	8:08 PM
7/19/2026	Giants	Mariners	4:10 PM
7/20/2026	Reds	Mariners	9:40 PM
7/21/2026	Reds	Mariners	9:40 PM
7/22/2026	Reds	Mariners	3:40 PM
7/24/2026	Mariners	Rangers	8:05 PM
7/25/2026	Mariners	Rangers	7:15 PM
7/26/2026	Mariners	Rangers	2:35 PM
7/27/2026	Mariners	Rangers	2:35 PM
7/28/2026	Mariners	Dodgers	10:10 PM

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Player	Pos	City	Injured date	Type	Description	+

Player	Pos	City	Transaction date	Description
M. Mastro	3B	SEA	7/3/2026	Back with Seattle.
M. Mastro	3B	SEA	6/25/2026	Outrighted to Tacoma.
M. Mastro	3B	SEA	6/19/2026	Designated for assignment
M. Mastro	3B	SEA	6/10/2026	Ready for season debut.
M. Mastro	3B	SEA	4/20/2026	Moved to 60-day IL.
M. Mastro	3B	SEA	3/25/2026	Sidelined with calf strain.
M. Mastro	3B	SEA	9/28/2025	Recalled, starting in finale.
M. Mastro	3B	SEA	8/18/2025	Sent back to Triple-A.
M. Mastro	3B	SEA	8/17/2025	Serving as 27th man.
M. Mastro	3B	SEA	8/15/2025	Sent to Tacoma.

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Player	Pos	City	Game Date	Corr. Date	Corr.	Description	Game log
M. Mastro	3B	SEA	6/13/2026	6/17/2026	-1	Stolen bases	Game log

Stars of the month

Date	Player	City	Pos	Star

Stars of the week

Date	Player	City	Pos	Star
June 10, 2026	M. Mastro	SEA	3B	2nd star
June 11, 2026	M. Mastro	SEA	3B	NA
June 12, 2026	M. Mastro	SEA	3B	NA
June 13, 2026	M. Mastro	SEA	3B	NA
June 14, 2026	M. Mastro	SEA	3B	NA
June 16, 2026	M. Mastro	SEA	3B	NA
June 17, 2026	M. Mastro	SEA	3B	NA
June 18, 2026	M. Mastro	SEA	3B	2nd star
July 10, 2026	M. Mastro	SEA	3B	2nd star