Mason Montgomery

2026 seasonregular season

Bats/Throws: L/L
Height: 6' 2"
Weight: 205 lb
Age: 26
Born: Austin, TX, USA
MLB debut: 2024-09-05
Drafted: 2021

Pitch qualityour Stuff+ grades

How nasty each pitch is from its physical shape alone — velocity, spin, movement, extension and release point — on a scale where 100 is league average and every 10 points is one standard deviation. It does not see where the pitch was thrown, the count, or what happened to it, so a pitcher with great stuff and poor command can still give up runs. How it is built

121overall

Four-seam fastball128
Slider115
Curveball109
Changeup95

Pitching

Season	G	GS	IP	ERA	WHIP	K	BB	HR	K/9	W-L	SV
2026	70	5	68.2	2.88	1.03	105	26	6	13.76	6-4	18

Last 10 games

Game	Dec	IP	H	ER	BB	K	HR	P
09/27@DETW	SV	1.0	0	0	0	2	0	14
09/26@DETL	L	0.2	3	3	0	1	1	20
09/24vSTLW	SV	1.0	0	0	0	3	0	17
09/20vKCW	SV	1.0	1	0	0	1	0	11
09/19vKCW	SV	1.0	0	0	1	1	0	21
09/17vMILW	SV	1.1	0	0	2	2	0	29
09/13@CHCW	SV	1.0	0	0	0	0	0	7
09/10@CWSW	SV	1.0	1	0	0	1	0	14
09/09@CWSW	SV	1.0	0	0	0	2	0	17
09/06vLAAW	SV	1.0	0	0	1	1	0	16

Full 2026 game log (70 games)

Game	Dec	IP	H	ER	BB	K	HR	P
09/27@DETW	SV	1.0	0	0	0	2	0	14
09/26@DETL	L	0.2	3	3	0	1	1	20
09/24vSTLW	SV	1.0	0	0	0	3	0	17
09/20vKCW	SV	1.0	1	0	0	1	0	11
09/19vKCW	SV	1.0	0	0	1	1	0	21
09/17vMILW	SV	1.1	0	0	2	2	0	29
09/13@CHCW	SV	1.0	0	0	0	0	0	7
09/10@CWSW	SV	1.0	1	0	0	1	0	14
09/09@CWSW	SV	1.0	0	0	0	2	0	17
09/06vLAAW	SV	1.0	0	0	1	1	0	16
09/04vLAAW	SV	1.0	1	0	0	1	0	21
09/03vSFW	SV	1.0	0	0	0	1	0	11
09/01vSFW	W	1.0	2	0	0	0	0	15
08/30@STLW	SV	1.0	0	0	0	0	0	11
08/29@STLW		1.0	0	0	0	2	0	14
08/25@SDW	SV	1.0	0	0	1	2	0	24
08/24@SDW		1.1	1	0	0	1	0	12
08/21@LADL		1.0	0	0	0	2	0	13
08/19vDETW	W	1.0	2	0	0	2	0	26
08/18vDETW	SV	1.0	0	0	0	2	0	15
08/16vBOSW		1.0	0	0	0	2	0	11
08/14vBOSW	SV	0.1	0	0	0	1	0	6
08/09vNYML		1.0	0	0	0	3	0	15
08/03@MILW	SV	1.0	1	0	0	3	0	18
07/31@CINL		0.2	0	0	1	1	0	12
07/30@CINL		1.0	0	0	0	2	0	7
07/27vAZW	W	1.0	0	0	1	1	0	20
07/26vCHCW	SV	1.0	2	2	0	2	1	25
07/24vCHCL		1.0	0	0	0	3	0	15
07/22@NYYW	W	1.1	0	0	1	2	0	19
07/19@CLEW		1.0	0	0	0	2	0	14
07/18@CLEL		1.0	0	0	1	1	0	14
07/11vMILW	SV	1.0	0	0	1	2	0	27
07/08vATLL		1.0	1	0	0	2	0	16
07/05@WSHW		1.0	0	0	0	1	0	16
07/04@WSHW	HLD	0.1	0	0	0	1	0	4
07/02@PHIW		1.0	0	0	0	3	0	14
06/29@PHIW		1.0	0	0	1	2	0	19
06/26vCINL	L	0.2	2	2	0	2	1	23
06/25vSEAW	HLD	1.1	0	0	0	2	0	15
06/23vSEAL		1.0	1	0	0	3	0	19
06/19@COLL	L	0.2	3	2	0	1	0	24
06/16@ATHW	W	1.0	0	0	1	2	0	21
06/13vMIAW		1.1	2	0	0	0	0	15
06/07@ATLL		1.0	1	0	2	2	0	25
06/06@ATLL		1.0	0	0	1	0	0	20
06/03@HOUL		0.2	2	3	1	2	0	26
05/30vMINW	HLD	0.2	2	2	2	0	0	25
05/28vCHCL		1.2	0	0	0	2	0	27
05/24@TORW	HLD	1.2	0	0	0	2	0	18
05/21@STLW		1.0	1	0	0	0	0	8
05/19@STLL	L	0.0	2	2	0	0	1	5
05/15vPHIL		1.1	1	1	0	0	1	15
05/14vCOLW		1.0	1	0	0	3	0	14
05/10@SFL		1.2	0	0	0	1	0	19
05/07@AZW	HLD	0.2	1	0	1	0	0	16
04/30vSTLL		1.0	0	0	1	0	0	12
04/27vSTLL		1.0	0	0	0	1	0	7
04/25@MILW		1.0	0	0	1	1	0	20
04/24@MILW		1.0	0	0	0	1	0	9
04/17vTBW	HLD	1.0	1	0	0	2	0	16
04/15vWSHW		1.0	1	0	0	1	0	11
04/14vWSHL		1.0	1	0	0	2	0	18
04/11@CHCW	HLD	1.0	1	0	0	2	0	13
04/10@CHCW	W	0.2	0	0	1	2	0	17
04/05vBALW		1.0	3	1	0	3	0	25
04/03vBALW	HLD	0.2	0	0	0	1	0	9
04/01@CINW	HLD	0.2	1	2	1	1	1	15
03/29@NYMW		1.0	2	0	0	3	0	20
03/26@NYML		1.1	1	2	3	2	0	42

Career by season

Season	G	GS	IP	ERA	WHIP	K	BB	HR	K/9	W-L	SV
2024TB	9	0	9.2	1.86	1.14	17	5	0	15.83	0-0	0
2025TB	57	0	46.0	5.67	1.65	63	27	6	12.33	1-3	1
2026PIT	70	5	68.2	2.88	1.03	105	26	6	13.76	6-4	18

Stats from the MLB Stats API, regular season only. A traded player's combined season appears as one row per club plus the total.