Pitching

Mason Marriott

Arizona Diamondbacks (AA)

Age: 24

Bats/Throws: L/R

6'0" / 198

DOB: 8/14/2002

(24 years, 28 days)

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Preseason ProjectionsIn-Season ProjectionsMinor LeaguesCollege

Season	Team	Level	Age	W	L	SV	G	GS	IP	K/9	BB/9	HR/9	BABIP	LOB%	GB%	HR/FB	ERA	FIP	xFIP	WAR
2022	BAY	NCAA	19	2	3	5	18	1	25.2	7.71	9.12	1.05	.278	71.1%			5.96	7.11
2023	BAY	NCAA	20	1	7	0	14	14	58.2	7.67	6.14	1.07	.355	58.8%			7.52	6.28
2024	BAY	NCAA	21	3	7	0	14	14	69.2	8.40	4.78	0.78	.335	62.2%			5.94	5.09
2024	ARI	A	21	0	0	0	3	0	7.0	7.71	1.29	0.00	.300	71.4%	50.0%	0.0%	2.57	2.78	3.84
2025	ARI	A+	22	1	0	0	4	4	19.2	11.44	3.66	0.00	.295	76.2%	55.8%	0.0%	2.29	2.13	2.91
2026	Steamer	PROJ	23	0	0	0	0	0	1.0	6.07	4.29	1.28	.307	68.6%	43.7%		5.37	5.19	5.15	0.0
2026	OOPSY	PROJ	23	0	0	0	1	1	4.4	7.31	3.38	0.97	.299	66.7%			4.33	4.18		0.0
2026	ARI	CPX	23	0	1	0	3	3	3.2	7.36	2.45	4.91	.300	93.8%	33.3%	50.0%	7.36	11.17	5.71
2026	ARI	A+	23	0	1	0	6	5	13.2	12.51	1.98	0.00	.276	54.5%	46.4%	0.0%	3.29	1.60	2.28
2026	ARI	AA	23	0	1	0	2	2	5.1	10.13	3.38	3.38	.471	76.1%	36.8%	66.7%	6.75	7.44	3.68
2026	ARI	MiLB	23	0	3	0	11	10	22.2	11.12	2.38	1.59	.339	68.4%	40.7%	33.3%	4.76	4.52	3.16
2026	Steamer	ROS	23	0	0	0	0	0	1.0	7.21	3.37	1.16	.312	69.6%			4.75	4.42		0.0
2026	OOPSY	ROS	23	0	0	0	1	1	2.9	7.38	3.38	1.02	.297	67.9%			4.34	4.23		0.0

Season	Team	Level	Age	W	L	SV	G	GS	IP	K/9	BB/9	HR/9	BABIP	LOB%	GB%	HR/FB	ERA	FIP	xFIP	WAR
2022	BAY	NCAA	19	2	3	5	18	1	25.2	7.71	9.12	1.05	.278	71.1%			5.96	7.11
2023	BAY	NCAA	20	1	7	0	14	14	58.2	7.67	6.14	1.07	.355	58.8%			7.52	6.28
2024	BAY	NCAA	21	3	7	0	14	14	69.2	8.40	4.78	0.78	.335	62.2%			5.94	5.09
2024	ARI	A	21	0	0	0	3	0	7.0	7.71	1.29	0.00	.300	71.4%	50.0%	0.0%	2.57	2.78	3.84
2025	ARI	A+	22	1	0	0	4	4	19.2	11.44	3.66	0.00	.295	76.2%	55.8%	0.0%	2.29	2.13	2.91
2026	Steamer	PROJ	23	0	0	0	0	0	1.0	6.07	4.29	1.28	.307	68.6%	43.7%		5.37	5.19	5.15	0.0
2026	OOPSY	PROJ	23	0	0	0	1	1	4.4	7.31	3.38	0.97	.299	66.7%			4.33	4.18		0.0
2026	ARI	CPX	23	0	1	0	3	3	3.2	7.36	2.45	4.91	.300	93.8%	33.3%	50.0%	7.36	11.17	5.71
2026	ARI	A+	23	0	1	0	6	5	13.2	12.51	1.98	0.00	.276	54.5%	46.4%	0.0%	3.29	1.60	2.28
2026	ARI	AA	23	0	1	0	2	2	5.1	10.13	3.38	3.38	.471	76.1%	36.8%	66.7%	6.75	7.44	3.68
2026	ARI	MiLB	23	0	3	0	11	10	22.2	11.12	2.38	1.59	.339	68.4%	40.7%	33.3%	4.76	4.52	3.16
2026	Steamer	ROS	23	0	0	0	0	0	1.0	7.21	3.37	1.16	.312	69.6%			4.75	4.42		0.0
2026	OOPSY	ROS	23	0	0	0	1	1	2.9	7.38	3.38	1.02	.297	67.9%			4.34	4.23		0.0

Preseason ProjectionsIn-Season ProjectionsMinor LeaguesCollege

Season	Team	Level	W	L	ERA	G	GS	QS	CG	ShO	SV	HLD	BS	IP	TBF	H	R	ER	HR	BB	IBB	HBP	WP	BK	SO
2022	BAY	NCAA	2	3	5.96	18	1		0	0	5			25.2	126	23	18	17	3	26		3	9	0	22
2023	BAY	NCAA	1	7	7.52	14	14		0	0	0			58.2	290	72	56	49	7	40		10	9	0	50
2024	BAY	NCAA	3	7	5.94	14	14		0	0	0			69.2	323	75	51	46	6	37		9	7	0	65
2024	ARI	A	0	0	2.57	3	0		0	0	0	1	0	7.0	27	6	2	2	0	1	0	0	2	1	6
2025	ARI	A+	1	0	2.29	4	4		0	0	0	0	0	19.2	77	13	5	5	0	8	0	0	2	1	25
2026	Steamer	PROJ	0	0	5.37	0	0	0	0	0	0	0		1.0	5	1	1	1	0	0	0	0			1
2026	OOPSY	PROJ	0	0	4.33	1	1	0			0	0		4.4	18	4	2	2	0	2	0	0			4
2026	ARI	CPX	0	1	7.36	3	3		0	0	0	0	0	3.2	16	5	3	3	2	1	0	0	0	0	3
2026	ARI	A+	0	1	3.29	6	5		0	0	0	0	0	13.2	51	8	5	5	0	3	0	0	0	1	19
2026	ARI	AA	0	1	6.75	2	2		0	0	0	0	0	5.1	27	10	5	4	2	2	0	0	0	0	6
2026	ARI	MiLB	0	3	4.76	11	10		0	0	0	0	0	22.2	94	23	13	12	4	6	0	0	0	1	28
2026	Steamer	ROS	0	0	4.75	0	0	0	0	0	0	0		1.0	4	1	1	1	0	0		0			1
2026	OOPSY	ROS	0	0	4.34	1	1	0			0	0		2.9	12	3	2	1	0	1	0	0			2

Season	Team	Level	W	L	ERA	G	GS	QS	CG	ShO	SV	HLD	BS	IP	TBF	H	R	ER	HR	BB	IBB	HBP	WP	BK	SO
2022	BAY	NCAA	2	3	5.96	18	1		0	0	5			25.2	126	23	18	17	3	26		3	9	0	22
2023	BAY	NCAA	1	7	7.52	14	14		0	0	0			58.2	290	72	56	49	7	40		10	9	0	50
2024	BAY	NCAA	3	7	5.94	14	14		0	0	0			69.2	323	75	51	46	6	37		9	7	0	65
2024	ARI	A	0	0	2.57	3	0		0	0	0	1	0	7.0	27	6	2	2	0	1	0	0	2	1	6
2025	ARI	A+	1	0	2.29	4	4		0	0	0	0	0	19.2	77	13	5	5	0	8	0	0	2	1	25
2026	Steamer	PROJ	0	0	5.37	0	0	0	0	0	0	0		1.0	5	1	1	1	0	0	0	0			1
2026	OOPSY	PROJ	0	0	4.33	1	1	0			0	0		4.4	18	4	2	2	0	2	0	0			4
2026	ARI	CPX	0	1	7.36	3	3		0	0	0	0	0	3.2	16	5	3	3	2	1	0	0	0	0	3
2026	ARI	A+	0	1	3.29	6	5		0	0	0	0	0	13.2	51	8	5	5	0	3	0	0	0	1	19
2026	ARI	AA	0	1	6.75	2	2		0	0	0	0	0	5.1	27	10	5	4	2	2	0	0	0	0	6
2026	ARI	MiLB	0	3	4.76	11	10		0	0	0	0	0	22.2	94	23	13	12	4	6	0	0	0	1	28
2026	Steamer	ROS	0	0	4.75	0	0	0	0	0	0	0		1.0	4	1	1	1	0	0		0			1
2026	OOPSY	ROS	0	0	4.34	1	1	0			0	0		2.9	12	3	2	1	0	1	0	0			2

Preseason ProjectionsIn-Season ProjectionsMinor LeaguesAveragesCollege

Season	Team	Level	K/9	BB/9	K/BB	HR/9	K%	BB%	K-BB%	AVG	WHIP	BABIP	LOB%	ERA-	FIP-	FIP
2022	BAY	NCAA	7.71	9.12	0.85	1.05	17.5%	20.6%	-3.2%	.237	1.91	.278	71.1%			7.11
2023	BAY	NCAA	7.67	6.14	1.25	1.07	17.2%	13.8%	3.4%	.300	1.91	.355	58.8%			6.28
2024	BAY	NCAA	8.40	4.78	1.76	0.78	20.1%	11.5%	8.7%	.271	1.61	.335	62.2%			5.09
2024	ARI	A	7.71	1.29	6.00	0.00	22.2%	3.7%	18.5%	.231	1.00	.300	71.4%	54	58	2.78
2025	ARI	A+	11.44	3.66	3.13	0.00	32.5%	10.4%	22.1%	.188	1.07	.295	76.2%	51	48	2.13
2026	Steamer	PROJ	6.07	4.29	1.41	1.28	14.9%	10.5%	4.4%	.280	1.60	.307	68.6%			5.19
2026	OOPSY	PROJ	7.31	3.38	2.16	0.97	20.4%	9.4%	10.9%	.252	1.27	.299	66.7%			4.18
2026	ARI	CPX	7.36	2.45	3.00	4.91	18.8%	6.3%	12.5%	.333	1.64	.300	93.8%	124	184	11.17
2026	ARI	A+	12.51	1.98	6.33	0.00	37.3%	5.9%	31.4%	.167	0.80	.276	54.5%	67	33	1.60
2026	ARI	AA	10.13	3.38	3.00	3.38	22.2%	7.4%	14.8%	.400	2.25	.471	76.1%	115	133	7.44
2026	ARI	MiLB	11.12	2.38	4.67	1.59	29.8%	6.4%	23.4%	.261	1.28	.339	68.4%	87	81	4.52
2026	Steamer	ROS	7.21	3.37	2.14	1.16	18.3%	8.5%	9.7%	.272	1.45	.312	69.6%			4.42
2026	OOPSY	ROS	7.38	3.38	2.18	1.02	20.0%	9.2%	10.8%	.252	1.30	.297	67.9%			4.23

Season	Team	Level	K/9	BB/9	K/BB	HR/9	K%	BB%	K-BB%	AVG	WHIP	BABIP	LOB%	ERA-	FIP-	FIP
2022	BAY	NCAA	7.71	9.12	0.85	1.05	17.5%	20.6%	-3.2%	.237	1.91	.278	71.1%			7.11
2023	BAY	NCAA	7.67	6.14	1.25	1.07	17.2%	13.8%	3.4%	.300	1.91	.355	58.8%			6.28
2024	BAY	NCAA	8.40	4.78	1.76	0.78	20.1%	11.5%	8.7%	.271	1.61	.335	62.2%			5.09
2024	ARI	A	7.71	1.29	6.00	0.00	22.2%	3.7%	18.5%	.231	1.00	.300	71.4%	54	58	2.78
2025	ARI	A+	11.44	3.66	3.13	0.00	32.5%	10.4%	22.1%	.188	1.07	.295	76.2%	51	48	2.13
2026	Steamer	PROJ	6.07	4.29	1.41	1.28	14.9%	10.5%	4.4%	.280	1.60	.307	68.6%			5.19
2026	OOPSY	PROJ	7.31	3.38	2.16	0.97	20.4%	9.4%	10.9%	.252	1.27	.299	66.7%			4.18
2026	ARI	CPX	7.36	2.45	3.00	4.91	18.8%	6.3%	12.5%	.333	1.64	.300	93.8%	124	184	11.17
2026	ARI	A+	12.51	1.98	6.33	0.00	37.3%	5.9%	31.4%	.167	0.80	.276	54.5%	67	33	1.60
2026	ARI	AA	10.13	3.38	3.00	3.38	22.2%	7.4%	14.8%	.400	2.25	.471	76.1%	115	133	7.44
2026	ARI	MiLB	11.12	2.38	4.67	1.59	29.8%	6.4%	23.4%	.261	1.28	.339	68.4%	87	81	4.52
2026	Steamer	ROS	7.21	3.37	2.14	1.16	18.3%	8.5%	9.7%	.272	1.45	.312	69.6%			4.42
2026	OOPSY	ROS	7.38	3.38	2.18	1.02	20.0%	9.2%	10.8%	.252	1.30	.297	67.9%			4.23