Jack Sinclair | Lineball

Washington Nationals

Jack Sinclair

Pitcher#49

Key facts

Age: 27
Height: 193 cm (6'4")
Weight: 77 kg (170 lb)
Number: #49
Born: 3 May 1999
Birthplace: Coral Springs, FL, USA
Debut: 4 September 2026
Position: Pitcher
Bats / Throws: Right / Right
MLB debut: 4 September 2026
Drafted: 2021

Official profile

MLB.com profile ↗

Career stats

Career pitching by level

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	W	L	ERA	G	GS	SV	IP	H	ER	HR	BB	SO	WHIP	K/9
MLB	1	0	2.45	11	0	1	11.0	6	3	0	4	8	0.91	6.55
AAA	9	4	4.77	88	3	1	103.2	96	55	8	59	120	1.50	10.42
AA	7	10	3.39	96	0	9	122.0	97	46	13	62	128	1.30	9.44
A+	5	3	2.45	32	0	8	47.2	25	13	2	14	50	0.82	9.44
A	4	1	1.21	18	0	2	22.1	15	3	0	6	28	0.94	11.28
ROK	0	0	5.06	6	2	0	10.2	13	6	1	4	8	1.59	6.75
WIN	3	0	3.12	7	0	1	8.2	12	3	1	4	9	1.85	9.35

Pitching by season

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	Team	Lvl	W	L	ERA	G	GS	SV	IP	H	ER	HR	BB	SO	WHIP	K/9
2026	Washington Nationals	MLB	1	0	2.45	11	0	1	11.0	6	3	0	4	8	0.91	6.55
2026	Rochester Red Wings	AAA	6	2	4.03	52	1	1	60.1	50	27	4	32	74	1.36	11.04
2025	Rochester Red Wings	AAA	3	2	5.95	35	2	0	42.1	46	28	4	26	43	1.70	9.14
2025	Harrisburg Senators	AA	0	2	5.14	18	0	0	21.0	23	12	2	17	18	1.90	7.71
2024	Harrisburg Senators	AA	5	3	2.20	43	0	8	57.1	35	14	3	20	65	0.96	10.20
2023	Rochester Red Wings	AAA	0	0	0.00	1	0	0	1.0	0	0	0	1	3	1.00	27.00
2023	Harrisburg Senators	AA	2	5	4.12	35	0

Recent games

27 Sept
v New York Mets
0.2 IP, 0 ER, K, 0 BB
W
25 Sept
v New York Mets
1.0 IP, ER, K, 0 BB
W
23 Sept
@ Detroit Tigers
0.1 IP, 0 ER, 0 K, 0 BB
W
22 Sept
@ Detroit Tigers
1.1 IP, 0 ER, K, 0 BB
W
19 Sept
@ St. Louis Cardinals
1.1 IP, 0 ER, 0 K, 0 BB
W
18 Sept
@ St. Louis Cardinals
1.0 IP, ER, 0 K, BB
W
13 Sept
v Los Angeles Angels
1.0 IP, ER, K, 0 BB
W
12 Sept
v Los Angeles Angels
1.1 IP, 0 ER, K, BB
W
7 Sept
@ San Diego Padres
1.1 IP, 0 ER, 0 K, BB
L
5 Sept
@ Los Angeles Dodgers
0.2 IP, 0 ER, 2 K, BB
L

Stats from official league and public sports feeds. Updated hourly.