How to read this player page

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.

Antonio Alfonseca 2026 Season · Bridgeport Bluefish

Career: 35-37, 4.11 ERA, 400 K in 613.0 IP.

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Antonio Alfonseca Stats & Profile | Baseball NUT

Antonio Alfonseca

#57

P · Bridgeport Bluefish

Compare

CAverage

+1.6Career NUT

+0.4 to Good

Career

4.11ERA1.51WHIP35W400K613.0IP129SV

R/R · 6' 5", 250 lb · b. Apr 16, 1972 · La Romana, Dominican Republic · Draft 1993 (1st Rd, #4)

Player Overview

Year by Year


1997	25	FLA	+0.0	1	3	4.91	17	2	0	0	0	0	123	25.2	36	14	10	1	19	1.79
1998	26	FLA	-0.6	4	6	4.08	58	27	8	0	0	8	316	70.2	75	32	33	3	46	1.53
1999	27	FLA	+0.7	4	5	3.24	73	49	21	5	4	25	325	77.2	79	28	29	4	46	1.39
2000	28	FLA	+0.4	5	6	4.24	68	62	45	0	4	49	311	70.0	82	33	24	1	47	1.51
2001	29	FLA	+0.3	4	4	3.06	58	52	28	0	6	34	268	61.2	68	21	15	5	40	1.35
2002	30	CHC	+0.4	2	5	4.00	66	55	19	0	9	28	330	74.1	73	33	36	3	61	1.47
2003	31	CHC	+0.2	3	1	5.83	60	17	0	9	4	4	296	66.1	76	43	27	2	51	1.55
2004	32	ATL	+0.5	6	4	2.57	79	11	0	13	1	1	313	73.2	71	21	28	0	45	1.34
2005	33	FLA	-0.1	1	1	4.94	33	1	0	8	2	2	118	27.1	29	15	14	2	16	1.57
2006	34	TEX	—	0	0	5.63	19	3	0	8	0	0	74	16.0	23	10	7	0	5	1.88
2007	35	PHI	-0.2	5	2	5.44	61	22	8	15	5	13	236	49.2	65	30	27	1	24	1.85
Career	—	11 yrs	+1.6	35	37	4.11	592	301	129	58	35	164	2710	613.0	677	280	250	22	400	1.51

Stat definitions →

NUT Breakdown

K Ability

HR Prevention

Walk Avoidance

What's driving Alfonseca's career NUT of +1.6

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

Career NUT Trend

0.7

97989900010203040507

NUT by Season

+0.0

-0.6

+0.7

+0.4

+0.3

+0.4

+0.2

+0.5

-0.1

-0.2

Awards

1997World Series Championship

2000NL Relief Man Award

Minor League

Year	Age	Lv	W	L	ERA	G	GS	CG	GF	SV	HLD	BS	SVO	BF	IP	H	ER	BB	HBP	SO	WHIP
1994	22	A	6	5	4.07	32	9	0	7	0	0	0	0	361	86.1	78	39	21	2	74	1.15
1995	23	AA	9	3	3.64	19	17	1	0	0	0	0	0	405	96.1	81	39	42	4	75	1.28
1996	24	AAA	4	4	5.53	14	13	0	1	1	0	0	1	321	71.2	86	44	22	3	51	1.51
1997	25	AAA	7	2	4.32	46	0	0	20	7	0	0	7	246	58.1	58	28	20	2	45	1.34
2003	31	AAA	0	1	4.91	3	0	0	0	0	0	0	0	19	3.2	6	2	1	0	5	1.91
2005	33	A+	0	0	3.00	3	1	0	0	0	0	0	0	10	3.0	3	1	0	0	4	1.00
2006	34	AA	0	0	0.00	1	0	0	0	0	0	0	0	3	1.0	0	0	0	0	0	0.00
2006	34	AAA	0	1	6.00	3	0	0	1	0	1	0	0	11	3.0	4	2	1	0	1	1.67
2009	37	AAA	0	1	12.46	6	0	0	4	1	1	1	2	23	4.1	8	6	2	0	2	2.31

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