pitcher with most strikeouts with 12+ losses single season

Matt Kilroy has fanned the most hitters with 12+ pitcher losses in a season, with 513 strikeouts in his rookie season in 1886.

	NAME	SO	L	SEASON	TM	W	L%	G	W%	GS	ERA	CG	SHO	SV	IP	H	ER	R	HR	BB	HBP	GF	IBB	TBF	WP	K/9	BB/9	K/BB	HR/9	K%	BB%	WHIP	BABIP	RA	ERA-	FIP	FIP-	H/9	PRAA
1	Matt Kilroy M. Kilroy	513	34	1886	BAL	29	.540	68	.460	68	3.37	66	5	0	583.0	476	218	350	10	182	19	0		2,469	61	7.92	2.81	2.82	0.15	20.8	7.4	1.13	.267	5.40	100	2.60	77	7.35	47
2	Toad Ramsey T. Ramsey	499	27	1886	LOU	38	.415	67	.585	67	2.45	66	3	0	588.2	447	160	297	3	207	12	0		2,477	35	7.63	3.16	2.41	0.05	20.1	8.4	1.11	.253	4.54	71	2.59	76	6.83	54.7
3	Hugh Daily H. Daily	483	28	1884	TOT	28	.500	58	.500	58	2.43	56	5	0	500.2	446	135	268	11	72		0		2,076	50	8.68	1.29	6.71	0.20	23.3	3.5	1.03		4.82	81	2.06	79	8.02	27.4
4	Dupee Shaw D. Shaw	451	33	1884	TOT	30	.524	67	.476	66	2.30	60	5	0	543.1	446	139	281	9	109		1		2,244	24	7.47	1.81	4.14	0.15	20.1	4.9	1.02		4.65	77	2.43	81	7.39	29
5	Old Hoss Radbourn O. Hoss Radbourn	441	12	1884	PRO	59	.169	75	.831	73	1.38	73	11	2	678.2	528	104	216	18	98		2		2,672	34	5.85	1.30	4.50	0.24	16.5	3.7	0.92		2.86	48	2.75	84	7.00	31.9
6	Charlie Buffinton C. Buffinton	417	16	1884	BSN	48	.250	67	.750	67	2.15	63	8	0	587.0	506	140	225	15	76		0		2,383	24	6.39	1.17	5.49	0.23	17.5	3.2	0.99		3.45	74	2.57	77	7.76	46.8
7	Guy Hecker G. Hecker	385	20	1884	LOU	52	.278	75	.722	73	1.80	72	6	0	670.2	526	134	230	4	56	16	2		2,649	27	5.17	0.75	6.88	0.05	14.5	2.1	0.87	.239	3.09	57	2.53	80	7.06	43
8	Nolan Ryan N. Ryan	383	16	1973	CAL	21	.432	41	.568	39	2.87	26	4	1	326.0	238	104	113	18	162	7	2	2	1,355	15	10.57	4.47	2.36	0.50	28.3	12.0	1.23	.280	3.12	80	2.48	69	6.57	40.9
9	Bill Sweeney B. Sweeney	374	21	1884	BLU	40	.344	62	.656	60	2.59	58	4	0	538.0	522	155	294	13	74		2		2,270	43	6.26	1.24	5.05	0.22	16.5	3.3	1.11		4.92	80	2.61	93	8.73	19.5
10	Pud Galvin P. Galvin	369	22	1884	BUF	46	.324	72	.676	72	1.99	71	12	0	636.1	566	141	254	23	63		0		2,554	16	5.22	0.89	5.86	0.33	14.4	2.5	0.99		3.59	64	2.88	82	8.01	50.9
11	Mark Baldwin M. Baldwin	368	34	1889	COL	27	.557	63	.443	59	3.61	54	6	1	513.2	458	206	358	9	274	20	4		2,275	83	6.45	4.80	1.34	0.16	16.2	12.0	1.43	.280	6.27	100	3.52	98	8.02	-3
12	Nolan Ryan N. Ryan	367	16	1974	CAL	22	.421	42	.579	41	2.89	26	3	0	332.2	221	107	127	18	202	9	1	3	1,392	9	9.93	5.46	1.82	0.49	26.4	14.5	1.27	.255	3.44	85	2.97	84	5.98	20.2
13	Tim Keefe T. Keefe	359	27	1883	NYM	41	.397	68	.603	68	2.41	68	5	0	619.0	488	166	244	6	108		0		2,517	27	5.22	1.57	3.32	0.09	14.3	4.3	0.96		3.55	72	2.74	82	7.10	45.1
14	Toad Ramsey T. Ramsey	355	27	1887	LOU	37	.422	65	.578	64	3.43	61	0	0	561.0	544	214	358	9	167	16	1		2,430	46	5.70	2.68	2.13	0.14	14.6	6.9	1.27	.284	5.74	78	3.20	76	8.73	64.2
15	Rube Waddell R. Waddell	349	19	1904	PHA	25	.432	46	.568	46	1.62	39	8	0	383.0	307	69	109	5	91	14	0		1,496	8	8.20	2.14	3.84	0.12	23.3	6.1	1.04	.291	2.56	61	1.59	62	7.21	41.5
16	Bob Feller B. Feller	348	15	1946	CLE	26	.366	48	.634	42	2.18	36	10	4	371.1	277	90	101	11	153	3	5		1,512	3	8.43	3.71	2.27	0.27	23.0	10.1	1.16	.267	2.45	65	2.16	65	6.71	48.3
17	Hardie Henderson H. Henderson	346	23	1884	BLA	27	.460	52	.540	52	2.62	50	4	0	439.1	382	128	235	9	116	16	0		1,900	45	7.09	2.38	2.98	0.18	18.2	6.1	1.13	.264	4.81	81	2.87	89	7.83	16.5
18	Mickey Welch M. Welch	345	21	1884	NYG	39	.350	65	.650	65	2.50	62	4	0	557.1	528	155	275	12	146		1		2,370	39	5.57	2.36	2.36	0.19	14.6	6.2	1.21		4.44	85	3.10	92	8.53	14.6
19	Jim Whitney J. Whitney	345	21	1883	BSN	37	.362	62	.638	56	2.24	54	1	2	514.0	492	128	258	7	35		5		2,101	37	6.04	0.61	9.86	0.12	16.4	1.7	1.03		4.52	74	2.29	75	8.61	39.8
20	Jim McCormick J. McCormick	343	25	1884	TOT	40	.385	66	.615	65	2.37	63	10	0	569.0	508	150	263	19	89		2		2,336	15	5.43	1.41	3.85	0.30	14.7	3.8	1.05		4.16	80	2.97	94	8.04	9.6
21	Nolan Ryan N. Ryan	341	16	1977	CAL	19	.457	37	.543	37	2.77	22	4	0	299.0	198	92	110	12	204	9	0	7	1,272	21	10.26	6.14	1.67	0.36	26.8	16.0	1.34	.263	3.31	72	3.11	79	5.96	27.9
22	Amos Rusie A. Rusie	341	34	1890	NYN	29	.540	67	.460	62	2.56	56	4	1	548.2	436	156	300	3	289	26	5		2,379	36	5.59	4.74	1.18	0.05	14.3	12.1	1.32	.252	4.92	73	3.47	92	7.15	17.7
23	Amos Rusie A. Rusie	337	20	1891	NYG	33	.377	61	.623	57	2.55	52	6	1	500.1	391	142	244	6	262	18	4		2,167	17	6.06	4.71	1.29	0.11	15.6	12.1	1.31	.249	4.39	78	3.02	89	7.03	19
24	Charlie Sweeney C. Sweeney	337	15	1884	TOT	41	.268	60	.732	56	1.70	53	6	1	492.0	360	93	182	6	42		4		1,909	21	6.16	0.77	8.02	0.11	17.7	2.2	0.82		3.33	58	2.32	81	6.59	26.9
25	Tim Keefe T. Keefe	335	12	1888	NYG	35	.255	51	.745	51	1.74	48	8	0	434.1	317	84	143	5	90	12	0		1,723	21	6.94	1.86	3.72	0.10	19.4	5.2	0.94	.244	2.96	63	1.90	66	6.57	45.3

Unlock 2x data

More MLB News

Volpe hits grand slam in return to majors as Yankees sweep Rockies 10-3 to pull closer in AL East

Sep 11, 2026

Braves beat the Rays 3-1, delaying Tampa Bay’s chance to clinch a playoff berth

Sep 11, 2026

Jones, Cruz power the Pirates to a 2-0 win over the White Sox

Sep 11, 2026

DeGrom retires first 15 batters, Rodríguez hits 3-run homer off bullpen as Mariners beat Texas 4-3

Sep 10, 2026

Cam Smith hit solo homer in 9th off All-Star closer Duran in Houston's 2-1 win over Phillies

Sep 10, 2026

Braves' Lane Thomas headed to IL after injury during pregame hitting

Sep 10, 2026

MLB 2026 Batting Leaders

HR Leaders

44

Schwarber

41

Crow-Armstrong

39

Caminero

RBI Leaders

107

Stewart

104

Burleson

100

Walker

Batting Average Leaders

.318

Arraez

.310

Alvarez

.308

Simpson

Hit Leaders

175

Arraez

173

Lopez

171

Díaz

Run Leaders

110

Crow-Armstrong

101

Wood

98

Reynolds

OBP Leaders

.427

Alvarez

.395

Bauers

.392

Wood

SLG Leaders

.590

Alvarez

.572

Crow-Armstrong

.553

García

SB Leaders

46

Nuñez

41

Simpson

40

Chisholm

MLB 2026 Pitching Leaders

Win Leaders

17

Sánchez

17

Gray

15

Burns

Strikeout Leaders

236

Misiorowski

228

Williams

227

Cease

ERA Leaders

1.95

Misiorowski

2.01

Schlittler

2.10

Sale

WHIP Leaders

0.80

Misiorowski

0.88

Yamamoto

0.91

Rasmussen

K/9 Leaders

13.17

Misiorowski

12.66

Cease

12.14

Williams

K/BB Leaders

6.34

Sale

5.78

Rasmussen

5.76

Misiorowski

Walk Leaders

24

Martinez

27

Rasmussen

29

Sale

MLB Fantasy 2026

FanDuel Points Leaders

2,264.8

Ohtani

2,143.5

Crow-Armstrong

1,900

Alvarez

DraftKings Points Leaders

1,625

Crow-Armstrong

1,592.6

Ohtani

1,424

Alvarez

MLB 2026 Betting

Best Record ATS

84-62

84-64

82-64

81-66

79-67

78-68

Worst Record ATS

56-91

59-87

62-85

66-81

68-79

69-78

MLB 2026 Standings

NL East	W	L	PCT	GB
Braves	86	61	.585
Phillies	82	65	.558	4.0
Marlins	72	75	.490	14.0
Mets	68	78	.466	17.5
Nationals	67	81	.453	19.5
NL Central	W	L	PCT	GB
Brewers	91	56	.619
Cubs	81	66	.551	10.0
Pirates	74	73	.503	17.0
Cardinals	72	75	.490	19.0
Reds	69	77	.473	21.5
NL West	W	L	PCT	GB
Dodgers	89	57	.610
Padres	78	68	.534	11.0
Diamondbacks	78	69	.531	11.5
Giants	62	85	.422	27.5
Rockies	55	91	.377	34.0

AL East	W	L	PCT	GB
Rays	87	59	.596
Yankees	84	62	.575	3.0
Red Sox	80	67	.544	7.5
Blue Jays	73	74	.497	14.5
Orioles	71	76	.483	16.5
AL Central	W	L	PCT	GB
White Sox	75	71	.514
Guardians	74	73	.503	1.5
Twins	69	77	.473	6.0
Tigers	67	79	.459	8.0
Royals	65	82	.442	10.5
AL West	W	L	PCT	GB
Astros	75	72	.510
Rangers	72	75	.490	3.0
Mariners	69	78	.469	6.0
Athletics	59	88	.401	16.0
Angels	56	90	.384	18.5