Mason Thompson

Washington Nationals

Age: 27

Bats/Throws: R/R

6'6" / 241

DOB: 2/20/1998

(27 years, 2 months, 8 days)

Stats

Partial SeasonsPreseason ProjectionsIn-Season ProjectionsMinor LeaguesSpring TrainingMLB Regular Season

Season	Team	Level	Age	W W - Wins	L L - Losses	SV SV - Saves	G G - Games Pitched	GS GS - Games Started	IP IP - Innings Pitched	K/9 K/9 - Strikeouts per 9 Innings ((SO*9)/IP)	BB/9 BB/9 - Walks per 9 Innings ((BB*9)/IP)	HR/9 HR/9 - Home Runs per 9 Innings ((HR*9)/IP)	BABIP BABIP - Batting Average on Balls in Play	LOB% LOB% - Left on Base Percentage	GB% GB% - Ground Ball Percentage (GB/BIP)	HR/FB HR/FB - Home Run to Fly Ball Ratio	vFA vFA - Fourseam Fastball velocity (Pitch Info)	ERA ERA - Earned Run Average ((ER*9)/IP)	xERA xERA - Expected ERA	FIP FIP - Fielder Independent Pitching on an ERA scale	xFIP xFIP - Expected Fielder Independent Pitching where Home Runs are calculated as 10.5% of Fly Balls induced	WAR WAR - Wins Above Replacement
2016	SDP	R	18	0	0	0	5	5	12.0	9.00	3.75	0.00	.258	80.0%	48.4%	0.0%		2.25		3.87	4.46
2017	SDP	A	19	2	4	0	7	7	27.0	9.33	4.00	0.67	.292	57.2%	36.5%	5.9%		4.67		3.83	4.10
2018	SDP	A	20	6	8	0	22	20	93.0	9.39	3.58	0.77	.316	61.3%	40.7%	7.0%		4.94		3.97	3.92
2019	SDP	R	21	0	0	0	2	2	4.0	6.75	6.75	2.25	.385	65.8%	53.8%	25.0%		6.75		8.27	5.83
2019	SDP	R	21	0	0	0	1	0	1.0	0.00	0.00	0.00	.000	100.0%	0.0%	0.0%		0.00		4.27	5.90
2019	SDP	A+	21	0	5	0	7	6	22.1	8.87	7.66	1.21	.306	57.8%	38.5%	10.7%		7.66		6.39	6.07
2019	SDP	MiLB	21	0	5	0	10	8	27.1	8.23	7.24	1.32	.308	59.1%	39.5%	11.8%		7.24		6.59	6.03
2021	SDP	AAA	23	3	2	7	23	0	26.2	8.10	2.70	1.35	.284	54.7%	68.8%	30.8%		5.74		4.98	3.97
2021	SDP	ST	23	0	1	0	7	0	5.2	7.94	9.53	3.18	.313	53.6%	44.4%	28.6%		12.71		10.11	7.96
2021	2 Tms	MLB	23	1	3	0	31	0	24.2	8.39	5.47	1.46	.359	77.8%	50.0%	16.7%	95.8	4.01	4.86	5.36	4.97	-0.2
2021	SDP	MLB	23	0	0	0	4	0	3.0	6.00	3.00	0.00	.400	80.0%	50.0%	0.0%	97.6	3.00		2.84	4.60	0.1
2021	WSN	MLB	23	1	3	0	27	0	21.2	8.72	5.82	1.66	.353	77.5%	50.0%	19.0%	95.7	4.15		5.71	5.02	-0.2
2022	WSN	CPX	24	0	0	0	3	3	2.2	23.63	0.00	0.00	.667	50.0%	100.0%	0.0%		3.38		0.83	0.83
2022	WSN	AAA	24	0	4	0	11	1	15.1	11.15	2.93	0.00	.357	57.1%	48.8%	0.0%		3.52		2.20	3.28
2022	WSN	MiLB	24	0	4	0	14	4	18.0	13.00	2.50	0.00	.378	56.0%	52.3%	0.0%		3.50		2.00	2.92
2022	WSN	ST	24	0	0	0	6	0	5.2	11.12	4.76	0.00	.353	70.0%	47.1%	0.0%		4.76		3.30	5.16
2022	WSN	MLB	24	1	1	1	24	0	24.2	5.47	3.28	0.73	.230	80.2%	53.3%	8.3%	95.6	2.92	3.72	4.17	4.55	0.0
2023	WSN	AA	25	0	0	0	1	0	1.0	9.00	0.00	0.00	.000	100.0%	0.0%	0.0%		0.00		1.28	4.16
2023	WSN	ST	25	0	0	2	7	0	9.0	5.00	2.00	0.00	.300	76.9%	50.0%	0.0%		3.00		4.04	6.21
2023	WSN	MLB	25	4	4	1	51	0	54.0	7.33	3.67	0.67	.349	64.3%	50.6%	8.0%	94.7	5.50	4.61	4.03	4.60	0.5
2025	FGDC	PROJ	27	3	3	0	42	0	42.0	7.55	3.54	0.98	.295	70.5%				4.20		4.26		0.0
2025	Steamer	PROJ	27	2	2	0	42	0	42.0	7.51	3.51	1.06	.296	72.1%	45.7%			4.15		4.33	4.36	0.0
2025	ZiPS	PROJ	27	3	3	0	38	1	40.3	7.59	3.57	0.89	.294	68.8%				4.24		4.18		0.1
2025	ZiPS DC	PROJ	27	3	3	0	42	0	42.0	7.59	3.57	0.89	.294	68.8%				4.24		4.18		0.0
2025	ATC	PROJ	27	2	2	0	30	0	31.0	7.38	3.56	0.94	.305	69.3%				4.43		4.23		0.0
2025	THE BAT	PROJ	27	1	1	0	30	0	31.0	7.07	3.59	0.97	.287	68.1%				4.51		4.38		0.1
2025	OOPSY	PROJ	27	2	2	0	42	0	42.0	7.43	3.35	0.96	.300	70.1%				4.25		4.16		0.0
2025	FGDC	ROS	27	1	2	0	31	0	31.0	7.56	3.67	1.02	.296	72.3%				4.13		4.20		0.0
2025	Steamer	ROS	27	1	2	0	31	0	31.0	7.56	3.67	1.02	.296	72.3%				4.13		4.20		0.0
2025	ZiPS DC	ROS	27	2	2	0	31	0	31.0	7.59	3.57	0.89	.294	68.8%				4.24		4.07		0.0
2025	ATC DC	ROS	27	2	2	0	31	0	31.0	7.38	3.56	0.94	.305	69.3%				4.43		4.12		0.0
2025	THE BAT	ROS	27	1	1	0	32	0	21.0	7.06	3.73	1.02	.289	68.0%				4.62		4.38		0.0
2025	OOPSY	ROS	27	2	2	0	31	0	31.0	7.55	3.50	0.98	.295	70.4%				4.16		4.14		0.0
Total	- - -	MLB		6	8	2	106	0	103.1	7.14	4.01	0.87	.324	70.9%	51.1%	10.2%	95.1	4.53		4.38	4.68	0.3

Season	Team	Level	Age	W W - Wins	L L - Losses	SV SV - Saves	G G - Games Pitched	GS GS - Games Started	IP IP - Innings Pitched	K/9 K/9 - Strikeouts per 9 Innings ((SO*9)/IP)	BB/9 BB/9 - Walks per 9 Innings ((BB*9)/IP)	HR/9 HR/9 - Home Runs per 9 Innings ((HR*9)/IP)	BABIP BABIP - Batting Average on Balls in Play	LOB% LOB% - Left on Base Percentage	GB% GB% - Ground Ball Percentage (GB/BIP)	HR/FB HR/FB - Home Run to Fly Ball Ratio	vFA vFA - Fourseam Fastball velocity (Pitch Info)	ERA ERA - Earned Run Average ((ER*9)/IP)	xERA xERA - Expected ERA	FIP FIP - Fielder Independent Pitching on an ERA scale	xFIP xFIP - Expected Fielder Independent Pitching where Home Runs are calculated as 10.5% of Fly Balls induced	WAR WAR - Wins Above Replacement
2016	SDP	R	18	0	0	0	5	5	12.0	9.00	3.75	0.00	.258	80.0%	48.4%	0.0%		2.25		3.87	4.46
2017	SDP	A	19	2	4	0	7	7	27.0	9.33	4.00	0.67	.292	57.2%	36.5%	5.9%		4.67		3.83	4.10
2018	SDP	A	20	6	8	0	22	20	93.0	9.39	3.58	0.77	.316	61.3%	40.7%	7.0%		4.94		3.97	3.92
2019	SDP	R	21	0	0	0	2	2	4.0	6.75	6.75	2.25	.385	65.8%	53.8%	25.0%		6.75		8.27	5.83
2019	SDP	R	21	0	0	0	1	0	1.0	0.00	0.00	0.00	.000	100.0%	0.0%	0.0%		0.00		4.27	5.90
2019	SDP	A+	21	0	5	0	7	6	22.1	8.87	7.66	1.21	.306	57.8%	38.5%	10.7%		7.66		6.39	6.07
2019	SDP	MiLB	21	0	5	0	10	8	27.1	8.23	7.24	1.32	.308	59.1%	39.5%	11.8%		7.24		6.59	6.03
2021	SDP	AAA	23	3	2	7	23	0	26.2	8.10	2.70	1.35	.284	54.7%	68.8%	30.8%		5.74		4.98	3.97
2021	SDP	ST	23	0	1	0	7	0	5.2	7.94	9.53	3.18	.313	53.6%	44.4%	28.6%		12.71		10.11	7.96
2021	2 Tms	MLB	23	1	3	0	31	0	24.2	8.39	5.47	1.46	.359	77.8%	50.0%	16.7%	95.8	4.01	4.86	5.36	4.97	-0.2
2021	SDP	MLB	23	0	0	0	4	0	3.0	6.00	3.00	0.00	.400	80.0%	50.0%	0.0%	97.6	3.00		2.84	4.60	0.1
2021	WSN	MLB	23	1	3	0	27	0	21.2	8.72	5.82	1.66	.353	77.5%	50.0%	19.0%	95.7	4.15		5.71	5.02	-0.2
2022	WSN	CPX	24	0	0	0	3	3	2.2	23.63	0.00	0.00	.667	50.0%	100.0%	0.0%		3.38		0.83	0.83
2022	WSN	AAA	24	0	4	0	11	1	15.1	11.15	2.93	0.00	.357	57.1%	48.8%	0.0%		3.52		2.20	3.28
2022	WSN	MiLB	24	0	4	0	14	4	18.0	13.00	2.50	0.00	.378	56.0%	52.3%	0.0%		3.50		2.00	2.92
2022	WSN	ST	24	0	0	0	6	0	5.2	11.12	4.76	0.00	.353	70.0%	47.1%	0.0%		4.76		3.30	5.16
2022	WSN	MLB	24	1	1	1	24	0	24.2	5.47	3.28	0.73	.230	80.2%	53.3%	8.3%	95.6	2.92	3.72	4.17	4.55	0.0
2023	WSN	AA	25	0	0	0	1	0	1.0	9.00	0.00	0.00	.000	100.0%	0.0%	0.0%		0.00		1.28	4.16
2023	WSN	ST	25	0	0	2	7	0	9.0	5.00	2.00	0.00	.300	76.9%	50.0%	0.0%		3.00		4.04	6.21
2023	WSN	MLB	25	4	4	1	51	0	54.0	7.33	3.67	0.67	.349	64.3%	50.6%	8.0%	94.7	5.50	4.61	4.03	4.60	0.5
2025	FGDC	PROJ	27	3	3	0	42	0	42.0	7.55	3.54	0.98	.295	70.5%				4.20		4.26		0.0
2025	Steamer	PROJ	27	2	2	0	42	0	42.0	7.51	3.51	1.06	.296	72.1%	45.7%			4.15		4.33	4.36	0.0
2025	ZiPS	PROJ	27	3	3	0	38	1	40.3	7.59	3.57	0.89	.294	68.8%				4.24		4.18		0.1
2025	ZiPS DC	PROJ	27	3	3	0	42	0	42.0	7.59	3.57	0.89	.294	68.8%				4.24		4.18		0.0
2025	ATC	PROJ	27	2	2	0	30	0	31.0	7.38	3.56	0.94	.305	69.3%				4.43		4.23		0.0
2025	THE BAT	PROJ	27	1	1	0	30	0	31.0	7.07	3.59	0.97	.287	68.1%				4.51		4.38		0.1
2025	OOPSY	PROJ	27	2	2	0	42	0	42.0	7.43	3.35	0.96	.300	70.1%				4.25		4.16		0.0
2025	FGDC	ROS	27	1	2	0	31	0	31.0	7.56	3.67	1.02	.296	72.3%				4.13		4.20		0.0
2025	Steamer	ROS	27	1	2	0	31	0	31.0	7.56	3.67	1.02	.296	72.3%				4.13		4.20		0.0
2025	ZiPS DC	ROS	27	2	2	0	31	0	31.0	7.59	3.57	0.89	.294	68.8%				4.24		4.07		0.0
2025	ATC DC	ROS	27	2	2	0	31	0	31.0	7.38	3.56	0.94	.305	69.3%				4.43		4.12		0.0
2025	THE BAT	ROS	27	1	1	0	32	0	21.0	7.06	3.73	1.02	.289	68.0%				4.62		4.38		0.0
2025	OOPSY	ROS	27	2	2	0	31	0	31.0	7.55	3.50	0.98	.295	70.4%				4.16		4.14		0.0
Total	- - -	MLB		6	8	2	106	0	103.1	7.14	4.01	0.87	.324	70.9%	51.1%	10.2%	95.1	4.53		4.38	4.68	0.3

Partial SeasonsPreseason ProjectionsIn-Season ProjectionsMinor LeaguesSpring TrainingMLB Regular Season

Season	Team	Level	W W - Wins	L L - Losses	ERA ERA - Earned Run Average ((ER*9)/IP)	G G - Games Pitched	GS GS - Games Started	QS	CG CG - Complete Games	ShO ShO - Shoutouts	SV SV - Saves	HLD HLD - Holds	BS BS - Blown Saves	IP IP - Innings Pitched	TBF TBF - Total Batters Faced	H H - Hits Allowed	R R - Runs Allowed	ER ER - Earned Runs	HR HR - Home Runs	BB BB - Walks	IBB IBB - Intentional	HBP HBP - Hit Batters	WP WP - Wild Pitches	BK BK - Balks	SO SO - Strikeouts
2016	SDP	R	0	0	2.25	5	5		0	0	0	0	0	12.0	50	8	3	3	0	5	0	2	2	0	12
2017	SDP	A	2	4	4.67	7	7		0	0	0	0	0	27.0	115	23	17	14	2	12	0	1	2	0	28
2018	SDP	A	6	8	4.94	22	20		0	0	0	0	0	93.0	425	95	61	51	8	37	0	8	9	1	97
2019	SDP	R	0	0	6.75	2	2		0	0	0	0	0	4.0	20	6	4	3	1	3	0	0	0	0	3
2019	SDP	R	0	0	0.00	1	0		0	0	0	0	0	1.0	3	0	0	0	0	0	0	0	0	0	0
2019	SDP	A+	0	5	7.66	7	6		0	0	0	0	0	22.1	109	22	21	19	3	19	0	3	2	0	22
2019	SDP	MiLB	0	5	7.24	10	8		0	0	0	0	0	27.1	132	28	25	22	4	22	0	3	2	0	25
2021	SDP	AAA	3	2	5.74	23	0		0	0	7	0	3	26.2	110	25	18	17	4	8	0	0	1	0	24
2021	SDP	ST	0	1	12.71	7	0		0	0	0	1	0	5.2	30	7	8	8	2	6	0	1	1	0	5
2021	2 Tms	MLB	1	3	4.01	31	0	0	0	0	0	6	3	24.2	121	32	15	11	4	15	1	1	3	0	23
2021	SDP	MLB	0	0	3.00	4	0	0	0	0	0	1	0	3.0	13	4	1	1	0	1	0	0	2	0	2
2021	WSN	MLB	1	3	4.15	27	0	0	0	0	0	5	3	21.2	108	28	14	10	4	14	1	1	1	0	21
2022	WSN	CPX	0	0	3.38	3	3		0	0	0	0	0	2.2	12	2	2	1	0	0	0	2	0	0	7
2022	WSN	AAA	0	4	3.52	11	1		0	0	0	1	2	15.1	67	15	9	6	0	5	1	1	2	0	19
2022	WSN	MiLB	0	4	3.50	14	4		0	0	0	1	2	18.0	79	17	11	7	0	5	1	3	2	0	26
2022	WSN	ST	0	0	4.76	6	0		0	0	0	0	0	5.2	28	6	3	3	0	3	0	1	4	0	7
2022	WSN	MLB	1	1	2.92	24	0	0	0	0	1	0	1	24.2	101	19	8	8	2	9	0	1	1	0	15
2023	WSN	AA	0	0	0.00	1	0		0	0	0	0	0	1.0	3	0	0	0	0	0	0	0	0	0	1
2023	WSN	ST	0	0	3.00	7	0		0	0	2	0	0	9.0	39	9	3	3	0	2	0	2	2	0	5
2023	WSN	MLB	4	4	5.50	51	0	0	0	0	1	10	3	54.0	240	62	35	33	4	22	0	4	4	0	44
2025	FGDC	PROJ	3	3	4.20	42	0	0			0	1		42.0	182	41	21	20	5	17		3			35
2025	Steamer	PROJ	2	2	4.15	42	0	0	0	0	0	1		42.0	180	41	21	19	5	16	1	2			35
2025	ZiPS	PROJ	3	3	4.24	38	1				0	1		40.3	176	39	21	19	4	16	1	3	3	0	34
2025	ZiPS DC	PROJ	3	3	4.24	42	0	0			0	1		42.0	183	41	22	20	4	17		3			35
2025	ATC	PROJ	2	2	4.43	30	0	0			0	4		31.0	137	32	17	15	3	12	1	2			26
2025	THE BAT	PROJ	1	1	4.51	30	0	0			0	1		31.0	136	30	17	16	3	12	1	2			25
2025	OOPSY	PROJ	2	2	4.25	42	0	0			0	1		42.0	182	42	22	20	4	16		2			35
2025	FGDC	ROS	1	2	4.13	31	0	0			0	1		31.0	135	31	16	14	4	13		1			26
2025	Steamer	ROS	1	2	4.13	31	0	0	0	0	0	1		31.0	135	31	16	14	4	13		1			26
2025	ZiPS DC	ROS	2	2	4.24	31	0	0			0	1		31.0	137	30	16	15	3	12		2			27
2025	ATC DC	ROS	2	2	4.43	31	0	0			0	1		31.0	138	32	17	15	3	12		2			26
2025	THE BAT	ROS	1	1	4.62	32	0				0	1		21.0	90	20	11	11	2	9	1	1			16
2025	OOPSY	ROS	2	2	4.16	31	0	0			0	1		31.0	136	31	16	15	3	12		2			26
Total	- - -	MLB	6	8	4.53	106	0	0	0	0	2	16	7	103.1	462	113	58	52	10	46	1	6	8	0	82

Season	Team	Level	W W - Wins	L L - Losses	ERA ERA - Earned Run Average ((ER*9)/IP)	G G - Games Pitched	GS GS - Games Started	QS	CG CG - Complete Games	ShO ShO - Shoutouts	SV SV - Saves	HLD HLD - Holds	BS BS - Blown Saves	IP IP - Innings Pitched	TBF TBF - Total Batters Faced	H H - Hits Allowed	R R - Runs Allowed	ER ER - Earned Runs	HR HR - Home Runs	BB BB - Walks	IBB IBB - Intentional	HBP HBP - Hit Batters	WP WP - Wild Pitches	BK BK - Balks	SO SO - Strikeouts
2016	SDP	R	0	0	2.25	5	5		0	0	0	0	0	12.0	50	8	3	3	0	5	0	2	2	0	12
2017	SDP	A	2	4	4.67	7	7		0	0	0	0	0	27.0	115	23	17	14	2	12	0	1	2	0	28
2018	SDP	A	6	8	4.94	22	20		0	0	0	0	0	93.0	425	95	61	51	8	37	0	8	9	1	97
2019	SDP	R	0	0	6.75	2	2		0	0	0	0	0	4.0	20	6	4	3	1	3	0	0	0	0	3
2019	SDP	R	0	0	0.00	1	0		0	0	0	0	0	1.0	3	0	0	0	0	0	0	0	0	0	0
2019	SDP	A+	0	5	7.66	7	6		0	0	0	0	0	22.1	109	22	21	19	3	19	0	3	2	0	22
2019	SDP	MiLB	0	5	7.24	10	8		0	0	0	0	0	27.1	132	28	25	22	4	22	0	3	2	0	25
2021	SDP	AAA	3	2	5.74	23	0		0	0	7	0	3	26.2	110	25	18	17	4	8	0	0	1	0	24
2021	SDP	ST	0	1	12.71	7	0		0	0	0	1	0	5.2	30	7	8	8	2	6	0	1	1	0	5
2021	2 Tms	MLB	1	3	4.01	31	0	0	0	0	0	6	3	24.2	121	32	15	11	4	15	1	1	3	0	23
2021	SDP	MLB	0	0	3.00	4	0	0	0	0	0	1	0	3.0	13	4	1	1	0	1	0	0	2	0	2
2021	WSN	MLB	1	3	4.15	27	0	0	0	0	0	5	3	21.2	108	28	14	10	4	14	1	1	1	0	21
2022	WSN	CPX	0	0	3.38	3	3		0	0	0	0	0	2.2	12	2	2	1	0	0	0	2	0	0	7
2022	WSN	AAA	0	4	3.52	11	1		0	0	0	1	2	15.1	67	15	9	6	0	5	1	1	2	0	19
2022	WSN	MiLB	0	4	3.50	14	4		0	0	0	1	2	18.0	79	17	11	7	0	5	1	3	2	0	26
2022	WSN	ST	0	0	4.76	6	0		0	0	0	0	0	5.2	28	6	3	3	0	3	0	1	4	0	7
2022	WSN	MLB	1	1	2.92	24	0	0	0	0	1	0	1	24.2	101	19	8	8	2	9	0	1	1	0	15
2023	WSN	AA	0	0	0.00	1	0		0	0	0	0	0	1.0	3	0	0	0	0	0	0	0	0	0	1
2023	WSN	ST	0	0	3.00	7	0		0	0	2	0	0	9.0	39	9	3	3	0	2	0	2	2	0	5
2023	WSN	MLB	4	4	5.50	51	0	0	0	0	1	10	3	54.0	240	62	35	33	4	22	0	4	4	0	44
2025	FGDC	PROJ	3	3	4.20	42	0	0			0	1		42.0	182	41	21	20	5	17		3			35
2025	Steamer	PROJ	2	2	4.15	42	0	0	0	0	0	1		42.0	180	41	21	19	5	16	1	2			35
2025	ZiPS	PROJ	3	3	4.24	38	1				0	1		40.3	176	39	21	19	4	16	1	3	3	0	34
2025	ZiPS DC	PROJ	3	3	4.24	42	0	0			0	1		42.0	183	41	22	20	4	17		3			35
2025	ATC	PROJ	2	2	4.43	30	0	0			0	4		31.0	137	32	17	15	3	12	1	2			26
2025	THE BAT	PROJ	1	1	4.51	30	0	0			0	1		31.0	136	30	17	16	3	12	1	2			25
2025	OOPSY	PROJ	2	2	4.25	42	0	0			0	1		42.0	182	42	22	20	4	16		2			35
2025	FGDC	ROS	1	2	4.13	31	0	0			0	1		31.0	135	31	16	14	4	13		1			26
2025	Steamer	ROS	1	2	4.13	31	0	0	0	0	0	1		31.0	135	31	16	14	4	13		1			26
2025	ZiPS DC	ROS	2	2	4.24	31	0	0			0	1		31.0	137	30	16	15	3	12		2			27
2025	ATC DC	ROS	2	2	4.43	31	0	0			0	1		31.0	138	32	17	15	3	12		2			26
2025	THE BAT	ROS	1	1	4.62	32	0				0	1		21.0	90	20	11	11	2	9	1	1			16
2025	OOPSY	ROS	2	2	4.16	31	0	0			0	1		31.0	136	31	16	15	3	12		2			26
Total	- - -	MLB	6	8	4.53	106	0	0	0	0	2	16	7	103.1	462	113	58	52	10	46	1	6	8	0	82

Partial SeasonsPreseason ProjectionsIn-Season ProjectionsMinor LeaguesSpring TrainingMLB Regular SeasonAverages

Season	Team	Level	K/9 K/9 - Strikeouts per 9 Innings ((SO*9)/IP)	BB/9 BB/9 - Walks per 9 Innings ((BB*9)/IP)	K/BB K/BB - Strikeout to Walk Ratio (SO/BB)	HR/9 HR/9 - Home Runs per 9 Innings ((HR*9)/IP)	K% K% - Strikeout Percentage (SO/TBF)	BB% BB% - Walk Percentage (BB/TBF)	K-BB% K-BB% - The difference between strikeout percentage and walk percentage	AVG AVG - Batting Average Against	WHIP WHIP - Walks + Hits divided by Innings Pitched	BABIP BABIP - Batting Average on Balls in Play	LOB% LOB% - Left on Base Percentage	ERA- ERA- - ERA adjusted for park and league where 100 is average and lower is better	FIP- FIP- - FIP adjusted for park and league where 100 is average and lower is better	FIP FIP - Fielder Independent Pitching on an ERA scale
2016	SDP	R	9.00	3.75	2.40	0.00	24.0%	10.0%	14.0%	.186	1.08	.258	80.0%	55	98	3.87
2017	SDP	A	9.33	4.00	2.33	0.67	24.3%	10.4%	13.9%	.225	1.30	.292	57.2%	115	97	3.83
2018	SDP	A	9.39	3.58	2.62	0.77	22.8%	8.7%	14.1%	.250	1.42	.316	61.3%	127	105	3.97
2019	SDP	R	6.75	6.75	1.00	2.25	15.0%	15.0%	0.0%	.353	2.25	.385	65.8%	150	193	8.27
2019	SDP	R	0.00	0.00	0.00	0.00	0.0%	0.0%	0.0%	.000	0.00	.000	100.0%	0	97	4.27
2019	SDP	A+	8.87	7.66	1.16	1.21	20.2%	17.4%	2.8%	.253	1.84	.306	57.8%	202	165	6.39
2019	SDP	MiLB	8.23	7.24	1.14	1.32	18.9%	16.7%	2.3%	.262	1.83	.308	59.1%	187	167	6.59
2021	SDP	AAA	8.10	2.70	3.00	1.35	21.8%	7.3%	14.5%	.245	1.24	.284	54.7%	98	90	4.98
2021	SDP	ST	7.94	9.53	0.83	3.18	16.7%	20.0%	-3.3%	.304	2.29	.313	53.6%	250	217	10.11
2021	2 Tms	MLB	8.39	5.47	1.53	1.46	19.0%	12.4%	6.6%	.305	1.91	.359	77.8%	96	125	5.36
2021	SDP	MLB	6.00	3.00	2.00	0.00	15.4%	7.7%	7.7%	.333	1.67	.400	80.0%	76	67	2.84
2021	WSN	MLB	8.72	5.82	1.50	1.66	19.4%	13.0%	6.5%	.301	1.94	.353	77.5%	99	133	5.71
2021			8.90	3.34	2.67	1.26	23.2%	8.7%	14.5%	.241	1.30	.290	72.1%			4.30
2022	WSN	CPX	23.63	0.00	7.00	0.00	58.3%	0.0%	58.3%	.200	0.75	.667	50.0%	75	19	0.83
2022	WSN	AAA	11.15	2.93	3.80	0.00	28.4%	7.5%	20.9%	.246	1.30	.357	57.1%	77	48	2.20
2022	WSN	MiLB	13.00	2.50	5.20	0.00	32.9%	6.3%	26.6%	.239	1.22	.378	56.0%	76	44	2.00
2022	WSN	ST	11.12	4.76	2.33	0.00	25.0%	10.7%	14.3%	.250	1.59	.353	70.0%	88	65	3.30
2022	WSN	MLB	5.47	3.28	1.67	0.73	14.9%	8.9%	5.9%	.209	1.14	.230	80.2%	73	104	4.17
2022			8.53	3.10	2.75	1.09	22.4%	8.2%	14.3%	.240	1.27	.289	72.6%			4.06
2023	WSN	AA	9.00	0.00	1.00	0.00	33.3%	0.0%	33.3%	.000	0.00	.000	100.0%	0	30	1.28
2023	WSN	ST	5.00	2.00	2.50	0.00	12.8%	5.1%	7.7%	.257	1.22	.300	76.9%	57	82	4.04
2023	WSN	MLB	7.33	3.67	2.00	0.67	18.3%	9.2%	9.2%	.290	1.56	.349	64.3%	127	92	4.03
2023			8.74	3.30	2.65	1.23	22.7%	8.6%	14.1%	.246	1.31	.295	71.9%			4.28
2025	FGDC	PROJ	7.55	3.54	2.13	0.98	19.4%	9.1%	10.3%	.251	1.37	.295	70.5%			4.26
2025	Steamer	PROJ	7.51	3.51	2.14	1.06	19.5%	9.1%	10.4%	.254	1.37	.296	72.1%			4.33
2025	ZiPS	PROJ	7.59	3.57	2.13	0.89	19.3%	9.1%	10.2%	.248	1.36	.294	68.8%			4.18
2025	ZiPS DC	PROJ	7.59	3.57	2.13	0.89	19.3%	9.1%	10.2%	.248	1.36	.294	68.8%			4.18
2025	ATC	PROJ	7.38	3.56	2.07	0.94	18.7%	9.0%	9.7%	.260	1.42	.305	69.3%			4.23
2025	THE BAT	PROJ	7.07	3.59	1.97	0.97	18.1%	9.2%	8.9%	.249	1.36	.287	68.1%			4.38
2025	OOPSY	PROJ	7.43	3.35	2.22	0.96	19.1%	8.6%	10.5%	.256	1.37	.300	70.1%			4.16
2025	FGDC	ROS	7.56	3.67	2.06	1.02	19.5%	9.5%	10.0%	.252	1.38	.296	72.3%			4.20
2025	Steamer	ROS	7.56	3.67	2.06	1.02	19.5%	9.5%	10.0%	.252	1.38	.296	72.3%			4.20
2025	ZiPS DC	ROS	7.59	3.57	2.13	0.89	19.3%	9.1%	10.2%	.248	1.36	.294	68.8%			4.07
2025	ATC DC	ROS	7.38	3.56	2.07	0.94	18.7%	9.0%	9.7%	.260	1.42	.305	69.3%			4.12
2025	THE BAT	ROS	7.06	3.73	1.89	1.02	18.0%	9.5%	8.5%	.251	1.39	.289	68.0%			4.38
2025	OOPSY	ROS	7.55	3.50	2.16	0.98	19.4%	9.0%	10.4%	.251	1.36	.295	70.4%			4.14
Total	- - -	MLB	7.14	4.01	1.78	0.87	17.7%	10.0%	7.8%	.276	1.54	.324	70.9%	106	103	4.38

Season	Team	Level	K/9 K/9 - Strikeouts per 9 Innings ((SO*9)/IP)	BB/9 BB/9 - Walks per 9 Innings ((BB*9)/IP)	K/BB K/BB - Strikeout to Walk Ratio (SO/BB)	HR/9 HR/9 - Home Runs per 9 Innings ((HR*9)/IP)	K% K% - Strikeout Percentage (SO/TBF)	BB% BB% - Walk Percentage (BB/TBF)	K-BB% K-BB% - The difference between strikeout percentage and walk percentage	AVG AVG - Batting Average Against	WHIP WHIP - Walks + Hits divided by Innings Pitched	BABIP BABIP - Batting Average on Balls in Play	LOB% LOB% - Left on Base Percentage	ERA- ERA- - ERA adjusted for park and league where 100 is average and lower is better	FIP- FIP- - FIP adjusted for park and league where 100 is average and lower is better	FIP FIP - Fielder Independent Pitching on an ERA scale
2016	SDP	R	9.00	3.75	2.40	0.00	24.0%	10.0%	14.0%	.186	1.08	.258	80.0%	55	98	3.87
2017	SDP	A	9.33	4.00	2.33	0.67	24.3%	10.4%	13.9%	.225	1.30	.292	57.2%	115	97	3.83
2018	SDP	A	9.39	3.58	2.62	0.77	22.8%	8.7%	14.1%	.250	1.42	.316	61.3%	127	105	3.97
2019	SDP	R	6.75	6.75	1.00	2.25	15.0%	15.0%	0.0%	.353	2.25	.385	65.8%	150	193	8.27
2019	SDP	R	0.00	0.00	0.00	0.00	0.0%	0.0%	0.0%	.000	0.00	.000	100.0%	0	97	4.27
2019	SDP	A+	8.87	7.66	1.16	1.21	20.2%	17.4%	2.8%	.253	1.84	.306	57.8%	202	165	6.39
2019	SDP	MiLB	8.23	7.24	1.14	1.32	18.9%	16.7%	2.3%	.262	1.83	.308	59.1%	187	167	6.59
2021	SDP	AAA	8.10	2.70	3.00	1.35	21.8%	7.3%	14.5%	.245	1.24	.284	54.7%	98	90	4.98
2021	SDP	ST	7.94	9.53	0.83	3.18	16.7%	20.0%	-3.3%	.304	2.29	.313	53.6%	250	217	10.11
2021	2 Tms	MLB	8.39	5.47	1.53	1.46	19.0%	12.4%	6.6%	.305	1.91	.359	77.8%	96	125	5.36
2021	SDP	MLB	6.00	3.00	2.00	0.00	15.4%	7.7%	7.7%	.333	1.67	.400	80.0%	76	67	2.84
2021	WSN	MLB	8.72	5.82	1.50	1.66	19.4%	13.0%	6.5%	.301	1.94	.353	77.5%	99	133	5.71
2021			8.90	3.34	2.67	1.26	23.2%	8.7%	14.5%	.241	1.30	.290	72.1%			4.30
2022	WSN	CPX	23.63	0.00	7.00	0.00	58.3%	0.0%	58.3%	.200	0.75	.667	50.0%	75	19	0.83
2022	WSN	AAA	11.15	2.93	3.80	0.00	28.4%	7.5%	20.9%	.246	1.30	.357	57.1%	77	48	2.20
2022	WSN	MiLB	13.00	2.50	5.20	0.00	32.9%	6.3%	26.6%	.239	1.22	.378	56.0%	76	44	2.00
2022	WSN	ST	11.12	4.76	2.33	0.00	25.0%	10.7%	14.3%	.250	1.59	.353	70.0%	88	65	3.30
2022	WSN	MLB	5.47	3.28	1.67	0.73	14.9%	8.9%	5.9%	.209	1.14	.230	80.2%	73	104	4.17
2022			8.53	3.10	2.75	1.09	22.4%	8.2%	14.3%	.240	1.27	.289	72.6%			4.06
2023	WSN	AA	9.00	0.00	1.00	0.00	33.3%	0.0%	33.3%	.000	0.00	.000	100.0%	0	30	1.28
2023	WSN	ST	5.00	2.00	2.50	0.00	12.8%	5.1%	7.7%	.257	1.22	.300	76.9%	57	82	4.04
2023	WSN	MLB	7.33	3.67	2.00	0.67	18.3%	9.2%	9.2%	.290	1.56	.349	64.3%	127	92	4.03
2023			8.74	3.30	2.65	1.23	22.7%	8.6%	14.1%	.246	1.31	.295	71.9%			4.28
2025	FGDC	PROJ	7.55	3.54	2.13	0.98	19.4%	9.1%	10.3%	.251	1.37	.295	70.5%			4.26
2025	Steamer	PROJ	7.51	3.51	2.14	1.06	19.5%	9.1%	10.4%	.254	1.37	.296	72.1%			4.33
2025	ZiPS	PROJ	7.59	3.57	2.13	0.89	19.3%	9.1%	10.2%	.248	1.36	.294	68.8%			4.18
2025	ZiPS DC	PROJ	7.59	3.57	2.13	0.89	19.3%	9.1%	10.2%	.248	1.36	.294	68.8%			4.18
2025	ATC	PROJ	7.38	3.56	2.07	0.94	18.7%	9.0%	9.7%	.260	1.42	.305	69.3%			4.23
2025	THE BAT	PROJ	7.07	3.59	1.97	0.97	18.1%	9.2%	8.9%	.249	1.36	.287	68.1%			4.38
2025	OOPSY	PROJ	7.43	3.35	2.22	0.96	19.1%	8.6%	10.5%	.256	1.37	.300	70.1%			4.16
2025	FGDC	ROS	7.56	3.67	2.06	1.02	19.5%	9.5%	10.0%	.252	1.38	.296	72.3%			4.20
2025	Steamer	ROS	7.56	3.67	2.06	1.02	19.5%	9.5%	10.0%	.252	1.38	.296	72.3%			4.20
2025	ZiPS DC	ROS	7.59	3.57	2.13	0.89	19.3%	9.1%	10.2%	.248	1.36	.294	68.8%			4.07
2025	ATC DC	ROS	7.38	3.56	2.07	0.94	18.7%	9.0%	9.7%	.260	1.42	.305	69.3%			4.12
2025	THE BAT	ROS	7.06	3.73	1.89	1.02	18.0%	9.5%	8.5%	.251	1.39	.289	68.0%			4.38
2025	OOPSY	ROS	7.55	3.50	2.16	0.98	19.4%	9.0%	10.4%	.251	1.36	.295	70.4%			4.14
Total	- - -	MLB	7.14	4.01	1.78	0.87	17.7%	10.0%	7.8%	.276	1.54	.324	70.9%	106	103	4.38

Partial SeasonsPreseason ProjectionsIn-Season ProjectionsMinor LeaguesSpring TrainingMLB Regular Season

Season	Team	Level	Events Events - The number of Batted Balls (TBF - SO - BB - HBP)	EV EV - Exit Velocity (mph) - Speed of the baseball as it comes off the bat	maxEV maxEV - Maximum Exit Velocity (mph) - Highest speed of a ball off the bat.	LA LA - Launch Angle (degree) - Vertical direction of the ball as it leaves the bat	Barrels Barrels - A batted ball with comparable hit types (in terms of exit velocity and launch angle) have led to a minimum .500 batting average and 1.500 slugging percentage	Barrel% Barrel% - Percentage of batted balls that are classified as barrels	HardHit HardHit - Number of batted balls with exit velocity of 95 mph or higher	HardHit% HardHit% - Percentage of batted balls with exit velocity of 95 mph or higher	ERA ERA - Earned Run Average ((ER*9)/IP)	xERA xERA - Expected ERA
2021	2 Tms	MLB	82	86.6	111.5	9.1	5	6.1%	35	42.7%	4.01	4.86
2021	SDP	MLB	10	85.1	106.2	2.2	0	0.0%	3	30.0%	3.00
2021	WSN	MLB	72	86.8	111.5	10.0	5	6.9%	32	44.4%	4.15
2022	WSN	MLB	76	86.1	110.8	12.2	3	3.9%	25	32.9%	2.92	3.72
2023	WSN	MLB	170	86.6	110.5	7.2	9	5.3%	61	35.9%	5.50	4.61
Total	- - -	MLB	328	86.5	111.5	8.8	17	5.2%	121	36.9%	4.53

Season	Team	Level	Events Events - The number of Batted Balls (TBF - SO - BB - HBP)	EV EV - Exit Velocity (mph) - Speed of the baseball as it comes off the bat	maxEV maxEV - Maximum Exit Velocity (mph) - Highest speed of a ball off the bat.	LA LA - Launch Angle (degree) - Vertical direction of the ball as it leaves the bat	Barrels Barrels - A batted ball with comparable hit types (in terms of exit velocity and launch angle) have led to a minimum .500 batting average and 1.500 slugging percentage	Barrel% Barrel% - Percentage of batted balls that are classified as barrels	HardHit HardHit - Number of batted balls with exit velocity of 95 mph or higher	HardHit% HardHit% - Percentage of batted balls with exit velocity of 95 mph or higher	ERA ERA - Earned Run Average ((ER*9)/IP)	xERA xERA - Expected ERA
2021	2 Tms	MLB	82	86.6	111.5	9.1	5	6.1%	35	42.7%	4.01	4.86
2021	SDP	MLB	10	85.1	106.2	2.2	0	0.0%	3	30.0%	3.00
2021	WSN	MLB	72	86.8	111.5	10.0	5	6.9%	32	44.4%	4.15
2022	WSN	MLB	76	86.1	110.8	12.2	3	3.9%	25	32.9%	2.92	3.72
2023	WSN	MLB	170	86.6	110.5	7.2	9	5.3%	61	35.9%	5.50	4.61
Total	- - -	MLB	328	86.5	111.5	8.8	17	5.2%	121	36.9%	4.53

Mason Thompson

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BAL	CHW	ATH
BOS	CLE	HOU
NYY	DET	LAA
TBR	KCR	SEA
TOR	MIN	TEX

ATL	CHC	ARI
MIA	CIN	COL
NYM	MIL	LAD
PHI	PIT	SDP
WSN	STL	SFG