MLB · Player

Walter Pennington

#12 P · B/T: L/L · 6' 2", 205 lb · Age 28 · Broomfield, CO, USA · MLB debut 2024 · Aberdeen IronBirds (Baltimore Orioles)

Compare

Career Graph

Season	Team	W	L	SV	BS	G	GS	QS	IP	IP/G	SO	K/9	BB/9	ERA
Triple-A (AAA)
2023	OMA	7	2	0	1	41	1	—	61.0	1.5	64	9.4	4.6	3.69
2024	RR	7	3	2	4	39	2	—	63.1	1.6	82	11.7	3.0	2.13
2025	NOR	0	1	0	1	1	0	0	0.1	0.3	0	0.0	108.0	54.00
AAA Total		14	6	2	6	81	3	0	124.2	1.5	146	10.5	4.0	3.03
Double-A (AA)
2022	NWA	6	3	2	1	33	1	—	62.0	1.9	52	7.5	4.2	5.66
2023	NWA	0	0	1	0	8	0	—	9.2	1.2	11	10.2	3.7	0.00
2025	CHE	0	1	0	0	14	0	0	17.1	1.2	21	10.9	3.6	2.60
AA Total		6	4	3	1	55	1	0	89.0	1.6	84	8.5	4.0	4.45
High-A (A+)
2022	QC	0	0	1	0	3	0	—	5.2	1.9	9	14.3	1.6	0.00
2025	ABD	0	1	0	0	3	1	—	4.0	1.3	6	13.5	4.5	6.75
A+ Total		0	1	1	0	6	1	—	9.2	1.6	15	14.0	2.8	2.79
Single-A (A)
2021	COL	3	3	4	1	23	0	—	39.2	1.7	37	8.4	3.2	3.18
A Total		3	3	4	1	23	0	—	39.2	1.7	37	8.4	3.2	3.18
Rookie (Rk)
2021	A-ROY	0	0	0	0	2	0	—	3.2	1.8	3	7.4	2.5	4.91
Rk Total		0	0	0	0	2	0	—	3.2	1.8	3	7.4	2.5	4.91
Minors Total		23	14	10	8	167	5	0	266.2	1.6	285	9.6	3.8	3.54

Season	Team	Pos	G	Inn	PO	A	E	FPCT
Triple-A (AAA)
2023	OMA	P	41	61.0	3	9	1	.923
2024	RR	P	39	63.1	5	8	1	.929
2025	NOR	P	1	0.1	0	2	1	.667
AAA Total		—	81	124.2	8	19	3	.900
Double-A (AA)
2022	NWA	P	33	62.0	5	12	2	.895
2023	NWA	P	8	9.2	1	3	0	1.000
2025	CHE	P	14	17.1	2	2	1	.800
AA Total		—	55	89.0	8	17	3	.893
High-A (A+)
2022	QC	P	3	5.2	1	1	0	1.000
2025	ABD	P	3	4.0	0	1	0	1.000
A+ Total		—	6	9.2	1	2	0	1.000
Single-A (A)
2021	COL	P	23	39.2	5	3	0	1.000
A Total		—	23	39.2	5	3	0	1.000
Rookie (Rk)
2021	A-ROY	P	2	3.2	1	0	0	1.000
Rk Total		—	2	3.2	1	0	0	1.000
Minors Total		—	167	266.2	23	41	6	.914

3 W · 0.59 ERA · 25 SO

3 W · 2.56 ERA · 55 SO

4 W · 7.27 ERA · 87 SO

0 W · 4.38 ERA · 42 SO

2 W · 8.12 ERA · 51 SO