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.

Si Johnson 2026 Season · ATL

Career: 101-165, 4.09 ERA, 840 K in 2281.1 IP.

NUT leaderboard · What is NUT?

Si Johnson Stats & Profile | Baseball NUT

Si Johnson

#34

P · ATL

Compare

BGood

+4.3Career NUT

+3.7 to Great

Career

4.09ERA1.40WHIP101W840K2281.1IP15SV

R/R · 6' 0", 185 lb · b. Oct 5, 1906 · Danway, IL · Signed Undrafted FA, 1928

Player Overview

Year by Year


1928	21	CIN	—	0	0	4.35	3	0	0	0	3	0	42	10.1	9	5	5	0	1	1.35
1929	22	CIN	—	0	0	4.50	1	0	0	0	1	0	9	2.0	2	1	1	0	0	1.50
1930	23	CIN	+0.2	3	1	4.94	35	3	0	0	17	0	345	78.1	86	43	31	4	47	1.49
1931	24	CIN	+1.6	11	19	3.77	42	33	14	0	3	0	1113	262.1	273	110	74	6	95	1.32
1932	25	CIN	+1.7	13	15	3.27	42	27	14	2	11	2	1024	245.0	246	89	57	2	94	1.24
1933	26	CIN	+0.5	7	18	3.49	34	28	14	4	2	1	888	211.1	212	82	54	3	51	1.26
1934	27	CIN	-0.6	7	22	5.22	46	31	9	0	5	3	993	215.2	264	125	84	7	89	1.61
1935	28	CIN	-1.4	5	11	6.23	30	20	4	1	5	0	603	130.0	155	90	59	3	40	1.65
1936	29	CIN	—	0	0	13.50	2	0	0	0	2	0	19	4.0	7	6	0	0	2	1.75
1936	29	STL	+0.3	5	3	4.38	12	9	3	1	3	0	275	61.2	82	30	11	1	21	1.51
1936	29	TOT	+0.3	5	3	4.93	14	9	3	1	5	0	294	65.2	89	36	11	1	23	1.52
1937	30	STL	+0.3	12	12	3.32	38	21	12	1	9	1	821	192.1	222	71	43	1	64	1.38
1938	31	STL	—	0	3	7.47	6	3	0	0	1	0	79	15.2	27	13	6	0	4	2.11
1940	33	PHI	-0.2	5	14	4.88	37	14	5	0	10	1	594	138.1	145	75	42	2	58	1.35
1941	34	PHI	+0.8	5	12	4.52	39	21	6	1	8	2	738	163.1	207	82	54	1	80	1.60
1942	35	PHI	+0.6	8	19	3.69	39	26	10	1	8	0	834	195.1	198	80	72	1	78	1.38
1943	36	PHI	+0.8	8	3	3.27	21	14	9	1	6	2	473	113.0	110	41	25	0	46	1.19
1946	39	PHI	—	0	0	3.00	1	0	0	0	0	0	16	3.0	7	1	0	0	2	2.33
1946	39	BSN	-0.1	6	5	2.76	28	12	5	1	6	1	544	127.0	134	39	35	4	41	1.33
1946	39	TOT	-0.2	6	5	2.77	29	12	5	1	6	1	560	130.0	141	40	35	4	43	1.35
1947	40	BSN	+0.0	6	8	4.23	36	10	3	0	15	2	493	112.2	124	53	34	1	27	1.40
Career	—	17 yrs	+4.3	101	165	4.09	492	272	108	13	115	15	9903	2281.1	2510	1036	687	36	840	1.40

Stat definitions →

NUT Breakdown

K Ability

HR Prevention

Walk Avoidance

What's driving Johnson'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

1.7

3031323334353637404142434647

NUT by Season

+0.2

+1.6

+1.7

+0.5

-0.6

-1.4

+0.3

-0.2

+0.8

+0.6

+0.8

-0.2

+0.0

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