Player stats

Strikeouts per 9 Innings 2018

Strikeouts per nine innings pitched. Unlike K%, the denominator is innings rather than batters faced.

Season

Minimum workload: one inning pitched per game. Completed seasons use the league's scheduled regular-season game count; seasons in progress use team games played. This is a general pitching minimum, not a relief-pitcher qualification rule. Data through December 31, 2018. Data refreshed Sep 12, 2026, 7:39 AM UTC.

No. 1 / Strikeouts per 9 Innings / 2018

Gerrit Cole

HOU

12.40

Season leader

Strikeouts per 9 Innings2018 season
#	Player	Team	IP	BF	K/9
1	G. ColeGerrit Cole	HOU	200.1	799	12.40
2	M. ScherzerMax Scherzer	WSH	220.2	866	12.24
3	J. VerlanderJustin Verlander	HOU	214.0	833	12.20
4	T. BauerTrevor Bauer	CLE	175.1	717	11.34
5	J. deGromJacob deGrom	NYM	217.0	835	11.16
6	P. CorbinPatrick Corbin	AZ	200.0	800	11.07
7	B. SnellBlake Snell	TB	180.2	700	11.01
8	C. MortonCharlie Morton	HOU	167.0	695	10.83
9	C. CarrascoCarlos Carrasco	CLE	192.0	784	10.83
10	G. MárquezGermán Márquez	COL	196.0	817	10.56
11	L. SeverinoLuis Severino	NYY	191.1	780	10.35
12	N. PivettaNick Pivetta	PHI	164.0	694	10.32
13	M. FoltynewiczMike Foltynewicz	ATL	183.0	744	9.93
14	J. HappJ.A. Happ	NYY	177.2	733	9.78
15	D. BundyDylan Bundy	BAL	171.2	750	9.65
16	J. GrayJon Gray	COL	172.1	743	9.56
17	A. NolaAaron Nola	PHI	212.1	831	9.49
18	J. BerríosJosé Berríos	MIN	192.1	797	9.45
19	Z. GodleyZack Godley	AZ	178.1	791	9.34
20	M. ClevingerMike Clevinger	CLE	200.0	810	9.32
21	C. KluberCorey Kluber	CLE	215.0	842	9.29
22	D. PriceDavid Price	BOS	176.0	722	9.05
23	A. HeaneyAndrew Heaney	LAA	180.0	749	9.00
24	R. PorcelloRick Porcello	BOS	191.1	808	8.94
25	D. HollandDerek Holland	SF	171.1	727	8.88
26	C. HamelsCole Hamels	CHC	190.2	806	8.87
27	J. OdorizziJake Odorizzi	MIN	164.1	711	8.87
28	Z. WheelerZack Wheeler	NYM	182.1	744	8.84
29	S. NewcombSean Newcomb	ATL	164.0	696	8.78
30	L. CastilloLuis Castillo	CIN	169.2	708	8.75
31	Z. GreinkeZack Greinke	AZ	207.2	839	8.62
32	J. TaillonJameson Taillon	PIT	191.0	785	8.43
33	M. BoydMatthew Boyd	DET	170.1	709	8.40
34	T. AndersonTyler Anderson	COL	176.0	737	8.39
35	J. JunisJakob Junis	KC	177.0	758	8.34
36	J. TeheranJulio Teheran	ATL	175.2	724	8.30
37	K. GibsonKyle Gibson	MIN	196.2	826	8.19
38	J. QuintanaJose Quintana	CHC	174.1	739	8.16
39	M. GonzalesMarco Gonzales	SEA	166.2	686	7.83
40	G. GonzalezGio Gonzalez	MIL	171.0	746	7.79
41	K. FreelandKyle Freeland	COL	202.1	844	7.70
42	J. LesterJon Lester	CHC	181.2	761	7.38
43	J. ChacínJhoulys Chacín	MIL	192.2	796	7.29
44	T. RoarkTanner Roark	WSH	180.1	760	7.29
45	K. HendricksKyle Hendricks	CHC	199.0	812	7.28
46	M. FiersMike Fiers	OAK	172.0	714	7.27
47	K. GausmanKevin Gausman	ATL	183.2	776	7.25
48	W. LeBlancWade LeBlanc	SEA	162.0	662	7.22
49	R. LópezReynaldo López	CWS	188.2	799	7.20
50	J. ArrietaJake Arrieta	PHI	172.2	724	7.19

K/9: Strikeouts per nine innings pitched. Unlike K%, the denominator is innings rather than batters faced.

Understanding Strikeouts per 9 Innings

Strikeouts per nine innings pitched. Unlike K%, the denominator is innings rather than batters faced.

Formula: 27 × SO ÷ outs recorded

Read rates alongside playing time. A small sample can produce an extreme result, and a missing value is different from zero.

Season rankings use regular-season records. A player has one combined row across teams; the team label identifies the associated team, not a separate team stint.

Source: MLB statistics and MLBDB derived measures. Formulas describe the measure above. Data refreshed Sep 12, 2026, 7:39 AM UTC.