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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.

Aaron Heilman 2026 Season · Round Rock Express

Career: 35-46, 4.40 ERA, 548 K in 630.0 IP.

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Aaron Heilman Stats & Profile | Baseball NUT

Aaron Heilman

#22

P · Round Rock Express (TEX)

Compare

CAverage

+0.7Career NUT

+1.3 to Good

Career

4.40ERA1.36WHIP35W548K630.0IP16SV

R/R · 6' 5", 230 lb · b. Nov 12, 1978 · Logansport, IN · Draft 2001 (1st Rd, #18)

Player Overview

Year by Year


2003	24	NYM	-1.2	2	7	6.75	14	13	0	0	0	0	0	0	0	315	65.1	79	49	41	3	51	1.84
2004	25	NYM	-0.1	1	3	5.46	5	5	0	0	0	0	0	0	0	119	28.0	27	17	13	0	22	1.43
2005	26	NYM	+1.6	5	3	3.17	53	7	1	1	20	5	5	1	6	439	108.0	87	38	37	6	106	1.15
2006	27	NYM	+1.2	4	5	3.62	74	0	0	0	14	0	26	5	5	356	87.0	73	35	28	3	73	1.16
2007	28	NYM	+0.6	7	7	3.03	81	0	0	0	28	1	22	5	6	352	86.0	72	29	20	5	63	1.07
2008	29	NYM	-0.5	3	8	5.21	78	0	0	0	23	3	15	5	8	356	76.0	75	44	46	9	80	1.59
2009	30	CHC	+0.0	4	4	4.11	70	0	0	0	11	1	10	6	7	313	72.1	68	33	34	1	65	1.41
2010	31	ARI	-0.3	5	8	4.50	70	0	0	0	26	6	12	8	14	316	72.0	73	36	26	5	55	1.38
2011	32	ARI	-0.5	4	1	6.88	32	0	0	0	10	0	5	1	1	164	35.1	48	27	11	1	33	1.67
Career	—	9 yrs	+0.7	35	46	4.40	477	25	1	1	132	16	95	31	47	2730	630.0	602	308	256	33	548	1.36

Stat definitions →

NUT Breakdown

K Ability

HR Prevention

Walk Avoidance

What's driving Heilman's career NUT of +0.7

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

Career NUT Trend

1.6

030405060708091011

NUT by Season

-1.2

-0.1

+1.6

+1.2

+0.6

-0.5

+0.0

-0.3

-0.5

Minor League

Year	Age	Lv	W	L	ERA	G	GS	CG	GF	SV	HLD	BS	SVO	BF	IP	H	ER	BB	HBP	SO	WHIP
2001	22	A+	0	1	2.35	7	7	0	0	0	0	0	0	153	38.1	26	10	13	1	39	1.02
2002	23	AA	4	4	3.82	17	17	0	0	0	0	0	0	397	96.2	85	41	28	6	97	1.17
2002	23	AAA	2	3	3.28	10	7	0	2	0	0	0	0	196	49.1	42	18	16	1	35	1.18
2003	24	AAA	6	4	3.24	16	16	0	0	0	0	0	0	399	94.1	99	34	32	2	71	1.39
2004	25	AAA	7	10	4.33	26	26	1	0	0	0	0	0	668	151.2	156	73	66	10	123	1.46
2011	32	AAA	0	0	8.38	9	0	0	2	0	2	2	2	48	9.2	14	9	6	0	8	2.07
2011	32	AAA	2	0	0.00	7	0	0	2	1	1	0	1	31	8.2	3	0	3	0	6	0.69
2011	32	AAA	2	0	4.42	16	0	0	4	1	3	2	3	79	18.1	17	9	9	0	14	1.42
2012	33	AAA	2	1	4.02	34	0	0	16	8	5	2	10	199	47.0	45	21	16	2	43	1.30

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