Robert Gsellman

Position: Pitcher

Bats: Right • Throws: Right

6-4, 237lb (193cm, 107kg)

Born: July 18, 1993 in Santa Monica, CA us

Draft: Drafted by the New York Mets in the 13th round of the 2011 MLB June Amateur Draft from Westchester HS (Los Angeles, CA).

High School: Westchester HS (Los Angeles, CA)

Rookie Status: Exceeded rookie limits during 2017 season

2024 Contract Status: Not Updated

Agents: CAA Sports • Previously: Beverly Hills Sports Council (Nate Heisler)

Full Name: Robert John Gsellman

Nicknames: G-Man or G

Pronunciation: \guh-SELL-man\

Twitter: @robgsellman

View Player Info from the B-R Bullpen

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SUMMARY

Career

WAR

-0.3

ERA

4.60

184

366.0

289

WHIP

1.399

Prospect Rankings

Player News

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2024 Spring Training

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Year	Age	AgeDif	Tm	Lg	Lev	Aff	W	L	W-L%	ERA	RA9	G	GS	GF	CG	SHO	SV	IP	H	R	ER	HR	BB	IBB	SO	HBP	BK	WP	BF	WHIP	H9	HR9	BB9	SO9	SO/W
2011	17	-3.5	Mets	GULF	Rk	NYM	0	0		4.15	4.15	7	1	1	0	0	1	13.0	15	6	6	1	2	0	8	1	0	1	57	1.308	10.4	0.7	1.4	5.5	4.00
2012	18	-2.5	Kingsport	APPY	Rk	NYM	1	3	.250	3.92	5.56	11	5	5	0	0	0	43.2	42	27	19	3	18	0	33	5	0	2	194	1.374	8.7	0.6	3.7	6.8	1.83
2013	19		3 Teams	3 Lgs	A--A-A+	NYM	6	6	.500	2.58	3.58	19	19	0	0	0	0	108.0	99	43	31	5	23	0	83	7	0	3	448	1.130	8.3	0.4	1.9	6.9	3.61
2013	19	-4.2	St. Lucie	FLOR	A+	NYM	1	0	1.000	3.00	3.00	2	2	0	0	0	0	9.0	5	3	3	1	5	0	5	0	0	0	38	1.111	5.0	1.0	5.0	5.0	1.00
2013	19	-2.7	Savannah	SALL	A	NYM	2	3	.400	3.72	5.28	5	5	0	0	0	0	29.0	35	17	12	2	6	0	14	1	0	0	122	1.414	10.9	0.6	1.9	4.3	2.33
2013	19	-2.3	Brooklyn	NYPL	A-	NYM	3	3	.500	2.06	2.96	12	12	0	0	0	0	70.0	59	23	16	2	12	0	64	6	0	3	288	1.014	7.6	0.3	1.5	8.2	5.33
2014	20	-1.7	Savannah	SALL	A	NYM	10	6	.625	2.55	3.25	20	20	0	4	1	0	116.1	122	42	33	2	34	0	92	9	0	6	500	1.341	9.4	0.2	2.6	7.1	2.71
2015	21		2 Teams	2 Lgs	AA-A+	NYM	13	7	.650	2.89	3.58	24	24	0	0	0	0	143.1	126	57	46	5	37	1	86	4	1	8	583	1.137	7.9	0.3	2.3	5.4	2.32
2015	21	-3.6	Binghamton	EL	AA	NYM	7	7	.500	3.51	4.58	16	16	0	0	0	0	92.1	89	47	36	4	26	1	49	1	0	6	387	1.245	8.7	0.4	2.5	4.8	1.88
2015	21	-2.0	St. Lucie	FLOR	A+	NYM	6	0	1.000	1.76	1.76	8	8	0	0	0	0	51.0	37	10	10	1	11	0	37	3	1	2	196	0.941	6.5	0.2	1.9	6.5	3.36
2016	22		2 Teams	2 Lgs	AA-AAA	NYM	4	9	.308	3.99	4.54	20	20	0	0	0	0	115.0	113	58	51	10	31	0	88	6	0	4	481	1.252	8.8	0.8	2.4	6.9	2.84
2016	22	-4.7	Las Vegas	PCL	AAA	NYM	1	5	.167	5.73	6.47	9	9	0	0	0	0	48.2	56	35	31	8	16	0	40	0	0	1	215	1.479	10.4	1.5	3.0	7.4	2.50
2016	22	-2.5	Binghamton	EL	AA	NYM	3	4	.429	2.71	3.12	11	11	0	0	0	0	66.1	57	23	20	2	15	0	48	6	0	3	266	1.085	7.7	0.3	2.0	6.5	3.20
2016	22	-6.1	NYM	NL	Maj	NYM	4	2	.667	2.42	2.42	8	7	0	0	0	0	44.2	42	12	12	1	15	2	42	1	0	1	185	1.276	8.5	0.2	3.0	8.5	2.80
2017	23		2 Teams	2 Lgs	AA-AAA	NYM	1	0	1.000	4.42	6.87	5	5	0	0	0	0	18.1	25	14	9	1	8	0	12	0	0	1	85	1.800	12.3	0.5	3.9	5.9	1.50
2017	23	-3.6	Las Vegas	PCL	AAA	NYM	0	0		7.50	10.50	1	1	0	0	0	0	6.0	10	7	5	1	3	0	3	0	0	0	30	2.167	15.0	1.5	4.5	4.5	1.00
2017	23	-1.3	Binghamton	EL	AA	NYM	1	0	1.000	2.92	5.11	4	4	0	0	0	0	12.1	15	7	4	0	5	0	9	0	0	1	55	1.622	10.9	0.0	3.6	6.6	1.80
2017	23	-5.4	NYM	NL	Maj	NYM	8	7	.533	5.19	6.39	25	22	1	1	0	0	119.2	138	85	69	17	42	3	82	8	0	4	549	1.504	10.4	1.3	3.2	6.2	1.95
2018	24	-4.2	NYM	NL	Maj	NYM	6	3	.667	4.28	4.95	68	0	24	0	0	13	80.0	76	44	38	8	28	6	70	5	0	1	345	1.300	8.6	0.9	3.2	7.9	2.50
2019	25	-3.3	NYM	NL	Maj	NYM	2	3	.400	4.66	5.09	52	0	9	0	0	1	63.2	64	36	33	7	23	2	60	6	0	4	277	1.366	9.0	1.0	3.3	8.5	2.61
2020	26	-2.4	NYM	NL	Maj	NYM	0	0		9.64	9.64	6	4	0	0	0	0	14.0	22	15	15	4	8	0	9	1	0	2	71	2.143	14.1	2.6	5.1	5.8	1.13
2021	27		2 Teams	2 Lgs	AAA-A	NYM	1	1	.500	9.95	9.95	6	2	0	0	0	0	6.1	10	7	7	0	3	0	5	1	0	0	33	2.053	14.2	0.0	4.3	7.1	1.67
2021	27	0.0	Syracuse	AAAE	AAA	NYM	1	1	.500	5.79	5.79	4	0	0	0	0	0	4.2	6	3	3	0	2	0	3	1	0	0	23	1.714	11.6	0.0	3.9	5.8	1.50
2021	27	5.1	St. Lucie	LASE	A	NYM	0	0		21.60	21.60	2	2	0	0	0	0	1.2	4	4	4	0	1	0	2	0	0	0	10	3.000	21.6	0.0	5.4	10.8	2.00
2021	27	-1.9	NYM	NL	Maj	NYM	0	1	.000	3.77	4.40	17	1	1	0	0	0	28.2	27	14	12	3	7	0	17	2	0	0	119	1.186	8.5	0.9	2.2	5.3	2.43
2022	28		2 Teams	2 Lgs	Fgn		1	1	.500	2.74	4.70	7			0	0	0	23.0	20	12	7	1	7	0	15	2	0	0	97	1.174	7.8	0.4	2.7	5.9	2.14
2022	28	1.0	Iowa	IL	AAA	CHC	1	4	.200	6.21	6.83	10	9	0	0	0	0	29.0	29	22	20	3	11	0	22	3	0	1	127	1.379	9.0	0.9	3.4	6.8	2.00
2022	28	0.8	Yokohama	JPCL	Fgn		1	1	.500	2.66	2.66	4			0	0	0	20.1	15	6	6	1	6	0	12	2	0	0	81	1.033	6.6	0.4	2.7	5.3	2.00
2022	28	3.0	Yokohama	JPEL	Fgn		0	0		3.38	20.25	3			0	0	0	2.2	5	6	1	0	1	0	3	0	0	0	16	2.250	16.9	0.0	3.4	10.1	3.00
2022	28	-1.2	CHC	NL	Maj	CHC	0	2	.000	4.70	5.87	8	0	5	0	0	1	15.1	17	10	8	2	3	0	9	0	0	0	64	1.304	10.0	1.2	1.8	5.3	3.00
2023	29		2 Teams	2 Lgs	Fgn		4	9	.308	4.63	5.09	23			0	0	0	116.2	137	66	60	9	48	0	72	11	1	4	528	1.586	10.6	0.7	3.7	5.6	1.50
2023	29	1.5	Yokohama	JPCL	Fgn		3	5	.375	4.45	4.87	13			0	0	0	64.2	72	35	32	6	33	0	43	4	0	1	292	1.624	10.0	0.8	4.6	6.0	1.30
2023	29	3.6	Yokohama	JPEL	Fgn		1	4	.200	4.85	5.37	10			0	0	0	52.0	65	31	28	3	15	0	29	7	1	3	236	1.538	11.3	0.5	2.6	5.0	1.93
2024	30	2.9	Rochester	IL	AAA	WSN	0	0		9.39	10.57	4	1	0	0	0	0	7.2	13	9	8	2	4	0	9	0	0	1	40	2.217	15.3	2.3	4.7	10.6	2.25
Year	Age	AgeDif	Tm	Lg	Lev	Aff	W	L	W-L%	ERA	RA9	G	GS	GF	CG	SHO	SV	IP	H	R	ER	HR	BB	IBB	SO	HBP	BK	WP	BF	WHIP	H9	HR9	BB9	SO9	SO/W
Majors (7 seasons)					Majors		20	18	.526	4.60	5.31	184	34	40	1	0	15	366.0	386	216	187	42	126	13	289	23	0	12	1610	1.399	9.5	1.0	3.1	7.1	2.29
Minors (10 seasons)					Minors		37	36	.507	3.45	4.27	126	106	6	4	1	1	600.2	594	285	230	32	171	1	438	36	1	27	2548	1.274	8.9	0.5	2.6	6.6	2.56
Foreign (2 seasons)					Foreign		5	10	.333	4.32	5.03	30			0	0	0	139.2	157	78	67	10	55	0	87	13	1	4	625	1.518	10.1	0.6	3.5	5.6	1.58
NPB (2 seasons)					NPB		4	6	.400	4.02	4.34	17			0	0	0	85.0	87	41	38	7	39	0	55	6	0	1	373	1.482	9.2	0.7	4.1	5.8	1.41
All Levels (14 Seasons)							62	64	.492	3.94	4.71	340	140	46	5	1	16	1106.1	1137	579	484	84	352	14	814	72	2	43	4783	1.346	9.2	0.7	2.9	6.6	2.31

AAA (5 seasons)					Minors		3	10	.231	6.28	7.13	28	20	0	0	0	0	96.0	114	76	67	14	36	0	77	4	0	3	435	1.563	10.7	1.3	3.4	7.2	2.14
AA (3 seasons)					Minors		11	11	.500	3.16	4.05	31	31	0	0	0	0	171.0	161	77	60	6	46	1	106	7	0	10	708	1.211	8.5	0.3	2.4	5.6	2.30
A+ (2 seasons)					Minors		7	0	1.000	1.95	1.95	10	10	0	0	0	0	60.0	42	13	13	2	16	0	42	3	1	2	234	0.967	6.3	0.3	2.4	6.3	2.63
A (3 seasons)					Minors		12	9	.571	3.00	3.86	27	27	0	4	1	0	147.0	161	63	49	4	41	0	108	10	0	6	632	1.374	9.9	0.2	2.5	6.6	2.63
A- (1 season)					Minors		3	3	.500	2.06	2.96	12	12	0	0	0	0	70.0	59	23	16	2	12	0	64	6	0	3	288	1.014	7.6	0.3	1.5	8.2	5.33
Rk (2 seasons)					Minors		1	3	.250	3.97	5.24	18	6	6	0	0	1	56.2	57	33	25	4	20	0	41	6	0	3	251	1.359	9.1	0.6	3.2	6.5	2.05