Mason Miller

Bats R Throws R6'5" 220 lbBorn 1998 Pittsburgh, USADebut 2023Team SD2x All-StarDraft 2021 R3 #97 Athletics, Gardner-Webb UniversityContract 1 y/$4M (26) 2026: $4,000,000

Awards: All-MLB Second Team

Projections

Season	BF	K%	BB%	HR%	1B%	XBH%	PITCH+
2026	222	37.3	9.0	2.76	20.4	6.13	116.9
2027							113.5
2028							110.9

Projected rates are per plate appearance or batter faced; counting stats scale with projected playing time. Statcast measurements inform these projections as inputs and are reported as measurements, not projected.

Most similar through age 26

His ten closest age-26 comparables averaged 111 PITCH+ the next season; 10 of 10 played. Averages cover only the players who got a next season, which is why the played count matters.

#	Player	Through	PITCH+ then	Next season	Next PA / BF
1	Carl Edwards	2018	123.7	104.1	78
2	Chris Devenski	2017	121.1	102.0	196
3	Josh Hader	2020	124.5	136.0	224
4	Joakim Soria	2010	125.3	102.4	256
5	Kenley Jansen	2014	122.9	127.6	200
6	Jonathan Papelbon	2007	127.4	127.4	273
7	Jonny Venters	2011	120.6	95.4	262
8	Pat Neshek	2007	123.4	103.7	56
9	Alexis Diaz	2023	119.7	104.2	242
10	Luke Gregerson	2010	119.2	103.1	241

Pitching

Year	Team	W	L	ERA	G	GS	SV	IP	BF	HR	BB	SO	PITCH+
2027 proj									222				113.5
2026*									199				169.5	99.8	169.3
2025	SD	1	2	2.63	60	0	22	61.7	234	5	28	104	127.5	100.2	127.7
2024	OAK	2	2	2.49	55	0	28	65.0	249	6	21	104	126.9	96.6	123.4
2023	OAK	0	3	3.78	10	6	0	33.3	139	2	16	38	110.8	100.2	111.0
Career		3	7	2.81	125	6	50	160.0	622	13	65	246	123.5		122.3

Fielding

Year	Team	Pos	G	Inn	PO	A	DP	Fld%	Runs saved
2025	SD	P	60	62	4	4	2	1.000	+0.1
2024	OAK	P	55	65	2	1	0	1.000	-1.0
2023	OAK	P	10	33	2	1	1	1.000	+0.0

Runs saved covers the Statcast era; for catchers it includes framing.

Minor leagues

Year	Level	Team	Side	PA / BF	Line	AVG / ERA
2023	AAA	Las Vegas Aviators	Pit	42	12.0 IP, 55% K	0.00
2022	A+	Lansing Lugnuts	Pit	26	7.0 IP, 50% K	3.86
2021	Rk	ACL Athletics	Pit	24	6.0 IP, 38% K	1.50

Splits

Year	vs LHP	vs RHP	Home	Away
2026	0.223	0.148	0.182	0.194
2025	0.309	0.176	0.234	0.230
2024	0.204	0.233	0.175	0.259
2023	0.275	0.288	0.243	0.316

wOBA by split, from pitch level data, 2015 on. For pitchers the split is the batter side faced.

Postseason pitching

Year	W	L	ERA	G	GS	SV	IP	H	HR	BB	SO	WHIP
2025	0	0	0.00	2	0	0	2.2	0	0	0	8	0.00
Career	0	0	0.00	2	0	0	2.2	0	0	0	8	0.00