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The big number is this season's NUT, his total production against league average, with its letter grade. Below that are his season and career lines, recent form over 7, 14 and 30 days, game logs, and percentile ranks against every qualified player. NUT is built on the advanced hitting and pitching stats analysts trust, with defense left out, so the number reflects what the player controls.

Jason Jennings 2026 Season · Sacramento River Cats

Career: 62-74, 4.95 ERA, 749 K in 1128.1 IP.

Awards: Jackie Robinson NL Rookie of the Year (2002).

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Jason Jennings Stats & Profile | Baseball NUT

Jason Jennings

#32

P · Sacramento River Cats (ATH)

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-4.3Career NUT

+2.3 to Weak

Career

4.95ERA1.56WHIP62W749K1128.1IP1SV

L/R · 6' 2", 235 lb · b. Jul 17, 1978 · Dallas, TX · Draft 1996 (54th Rd, #1530)

Player Overview

Year by Year


2001	22	COL	+0.2	4	1	4.58	7	7	1	1	0	0	0	0	0	174	39.1	42	20	19	1	26	1.55
2002	23	COL	-0.8	16	8	4.52	32	32	0	0	0	0	0	0	0	808	185.1	201	93	70	8	127	1.46
2003	24	COL	-0.6	12	13	5.11	32	32	1	0	0	0	0	0	0	820	181.1	212	103	88	5	119	1.65
2004	25	COL	-1.4	11	12	5.51	33	33	0	0	0	0	0	0	0	925	201.0	241	123	101	7	133	1.70
2005	26	COL	-0.4	6	9	5.02	20	20	1	0	0	0	0	0	0	551	122.0	130	68	62	5	75	1.57
2006	27	COL	+1.0	9	13	3.78	32	32	3	2	0	0	0	0	0	902	212.0	206	89	85	3	142	1.37
2007	28	HOU	-1.0	2	9	6.45	19	18	0	0	0	0	0	0	0	445	99.0	119	71	34	2	71	1.55
2008	29	TEX	-1.2	0	5	8.56	6	6	0	0	0	0	0	0	0	135	27.1	35	26	18	1	12	1.94
2009	30	TEX	-0.2	2	4	4.13	44	0	0	0	8	1	12	1	2	272	61.0	67	28	28	2	44	1.56
Career	—	9 yrs	-4.3	62	74	4.95	225	180	6	3	8	1	12	1	2	5032	1128.1	1253	621	505	34	749	1.56

Stat definitions →

NUT Breakdown

K Ability

HR Prevention

Walk Avoidance

What's driving Jennings's career NUT of -4.3

Slice size = share of total NUT. K Ability = Strikeouts · HR Prevention = HR allowed · Walk Avoidance = BB + HBP.

Career NUT Trend

010203040506070809

NUT by Season

+0.2

-0.8

-0.6

-1.4

-0.4

+1.0

-1.0

-1.2

-0.2

Awards

2002Jackie Robinson NL Rookie of the Year · NL Rookie of the Month · MLB Players Choice NL Outstanding Rookie

Minor League

Year	Age	Lv	W	L	ERA	G	GS	CG	SHO	BF	IP	H	ER	BB	HBP	SO	WHIP
1999	20	A	2	2	3.70	12	12	0	0	242	58.1	55	24	8	6	69	1.08
2000	21	A+	7	10	3.47	22	22	3	1	632	150.1	136	58	42	2	133	1.18
2000	21	AA	1	3	3.44	6	6	0	0	149	36.2	32	14	11	0	33	1.17
2001	22	AA	2	0	2.88	4	4	0	0	106	25.0	25	8	8	1	24	1.32
2001	22	AAA	7	8	4.72	22	22	4	0	572	131.2	145	69	41	7	110	1.41
2007	28	AA	0	0	0.00	1	1	0	0	17	5.0	3	0	1	0	2	0.80
2007	28	AAA	0	0	10.80	1	1	0	0	18	3.1	3	4	5	0	2	2.40
2010	31	AAA	0	0	6.23	3	3	0	0	61	13.0	16	9	4	2	9	1.54

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