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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.

Grant Balfour 2026 Season · Durham Bulls

Career: 30-23, 3.49 ERA, 571 K in 539.2 IP.

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Grant Balfour Stats & Profile | Baseball NUT

Grant Balfour

#50

P · Durham Bulls (TB)

Compare

BGood

+4.0Career NUT

+4 to Great

Career

3.49ERA1.22WHIP30W571K539.2IP84SV

R/R · 6' 2", 200 lb · b. Dec 30, 1977 · Sydney, New South Wales · Signed International FA, 2011 (ATH)

Player Overview

Year by Year


2001	23	MIN	—	0	0	13.50	2	0	1	0	0	0	0	14	2.2	3	4	3	0	2	2.25
2003	25	MIN	+0.0	1	0	4.15	17	1	6	0	1	1	1	115	26.0	23	12	14	0	30	1.42
2004	26	MIN	+0.2	4	1	4.35	36	0	14	0	4	1	1	172	39.1	35	19	21	2	42	1.42
2007	29	MIL	—	0	2	20.25	3	0	2	0	0	0	0	18	2.2	4	6	4	1	3	3.00
2007	29	TBD	—	1	0	6.14	22	0	6	0	1	0	0	103	22.0	26	15	16	0	27	1.91
2007	29	TOT	—	1	2	7.66	25	0	8	0	1	0	0	121	24.2	30	21	20	1	30	2.03
2008	30	TB	+1.4	6	2	1.54	51	0	12	4	14	1	5	224	58.1	28	10	24	0	82	0.89
2009	31	TB	+0.4	5	4	4.81	73	0	15	4	18	5	9	289	67.1	59	36	33	2	69	1.37
2010	32	TB	+0.9	2	1	2.28	57	0	8	0	16	1	1	222	55.1	43	14	17	0	56	1.08
2011	33	OAK	+0.1	5	2	2.47	62	0	15	2	26	5	7	242	62.0	44	17	20	0	59	1.03
2012	34	OAK	+0.9	3	2	2.53	75	0	34	24	15	2	26	289	74.2	41	21	28	1	72	0.92
2013	35	OAK	+0.3	1	3	2.59	65	0	55	38	0	3	41	262	62.2	48	18	27	0	72	1.20
2014	36	TB	-0.2	2	6	4.91	65	0	34	12	11	3	15	270	62.1	49	34	41	1	57	1.44
2015	37	TB	—	0	0	6.23	6	0	1	0	1	0	0	21	4.1	3	3	4	1	0	1.62
Career	—	12 yrs	+4.0	30	23	3.49	534	1	203	84	107	22	106	2241	539.2	406	209	252	8	571	1.22

Stat definitions →

NUT Breakdown

K Ability

HR Prevention

Walk Avoidance

What's driving Balfour's career NUT of +4

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

Career NUT Trend

1.4

030408091011121314

NUT by Season

+0.0

+0.2

+1.4

+0.4

+0.9

+0.1

+0.9

+0.3

-0.2

Awards

2001Futures Game Selection

2013AL All-Star

Minor League

Year	Age	Lv	W	L	ERA	G	GS	GF	SV	HLD	BS	SVO	BF	IP	H	ER	BB	HBP	SO	WHIP
1999	21	A	8	5	3.53	19	14	2	1	0	0	0	368	91.2	66	36	37	6	95	1.12
2000	22	A+	8	5	4.25	35	10	13	6	0	0	0	392	89.0	91	42	34	8	90	1.40
2001	23	AA	2	1	1.08	35	0	24	13	0	0	0	197	50.0	26	6	22	0	72	0.96
2001	23	AAA	2	2	5.51	11	0	2	0	0	0	0	73	16.1	18	10	10	0	17	1.71
2002	24	AAA	2	4	4.16	58	0	25	8	0	0	0	296	71.1	60	33	30	0	88	1.26
2003	25	AAA	5	2	2.41	21	11	10	5	0	0	0	276	71.0	48	19	16	3	87	0.90
2006	28	A	0	0	0.00	2	0	0	0	0	0	0	6	2.0	0	0	0	0	3	0.00
2006	28	A+	0	0	7.94	5	0	0	0	1	0	0	30	5.2	8	5	3	1	7	1.94
2007	29	AA	0	0	2.38	8	0	5	2	0	2	4	47	11.1	8	3	4	0	21	1.06
2007	29	AAA	1	1	1.69	24	0	11	5	6	1	6	121	32.0	17	6	11	0	47	0.88
2008	30	AAA	1	0	0.38	15	0	15	8	0	0	8	85	23.2	5	1	10	0	39	0.63
2010	32	A+	0	1	10.80	2	2	0	0	0	0	0	10	1.2	2	2	3	0	2	3.00
2011	33	AAA	0	0	9.00	1	0	0	0	0	0	0	6	1.0	2	1	1	0	0	3.00
2015	37	AAA	0	0	2.79	8	0	2	0	3	0	0	42	9.2	9	3	4	0	11	1.34

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