Player stats

Curveball: Average Extension 2019

How far toward home plate the pitcher releases the ball, measured in feet from the pitching rubber. Only pitches with this measurement are included. Uses pitches recorded as curveball.

Season

At least 100 pitches of this type with an extension measurement in this season. Recorded pitch types. Usage divides by all delivered pitches, including unknown types. Speed is in mph, spin in rpm and extension in feet. Averages use measured pitches only. Whiffs divide misses by swings. Data through December 31, 2019. Data refreshed Sep 9, 2026, 10:19 AM UTC.

No. 1 / Curveball: Average Extension / 2019

Tyler Glasnow

6.9

Season leader

Curveball: Average Extension2019 season
#	Player	Team	CU ext count	Type coverage	CU ext ft
1	T. GlasnowTyler Glasnow	TB	264	99.9%	6.9
2	P. LópezPablo López	MIA	345	99.8%	6.7
3	F. PeraltaFreddy Peralta	MIL	328	100.0%	6.7
4	B. BurkeBrock Burke	TEX	106	100.0%	6.6
5	P. MatonPhil Maton	CLE	115	100.0%	6.5
6	Y. PetitYusmeiro Petit	OAK	162	98.5%	6.4
7	T. MayTrevor May	MIN	138	100.0%	6.4
8	S. BarlowScott Barlow	KC	175	100.0%	6.4
9	S. StrasburgStephen Strasburg	WSH	1037	100.0%	6.3
10	D. DuffyDanny Duffy	KC	195	100.0%	6.3
11	W. FontWilmer Font	TOR	290	98.8%	6.3
12	J. RodriguezJefry Rodriguez	CLE	180	100.0%	6.3
13	K. GibsonKyle Gibson	MIN	353	100.0%	6.3
14	T. ToussaintTouki Toussaint	ATL	213	100.0%	6.3
15	K. KelaKeone Kela	PIT	221	100.0%	6.2
16	C. PaddackChris Paddack	SD	238	100.0%	6.2
17	M. MagillMatt Magill	SEA	266	100.0%	6.2
18	J. LylesJordan Lyles	MIL	745	96.8%	6.2
19	J. SoriaJoakim Soria	OAK	143	98.5%	6.2
20	B. ParkerBlake Parker	PHI	158	100.0%	6.2
21	D. MengdenDaniel Mengden	OAK	102	100.0%	6.2
22	B. McKayBrendan McKay	TB	230	100.0%	6.2
23	D. RodríguezDereck Rodríguez	SF	281	99.8%	6.2
24	S. MatzSteven Matz	NYM	401	100.0%	6.1
25	G. SparkmanGlenn Sparkman	KC	377	99.9%	6.1
26	W. HarrisWill Harris	HOU	383	97.5%	6.0
27	L. HendriksLiam Hendriks	OAK	104	97.3%	6.0
28	L. GiolitoLucas Giolito	CWS	116	100.0%	6.0
29	J. GantJohn Gant	STL	113	98.0%	6.0
30	A. HouserAdrian Houser	MIL	252	100.0%	6.0
31	J. BlevinsJerry Blevins	ATL	274	100.0%	6.0
32	Z. WheelerZack Wheeler	NYM	314	100.0%	6.0
33	N. SyndergaardNoah Syndergaard	NYM	294	100.0%	6.0
34	M. KellyMerrill Kelly	AZ	632	100.0%	6.0
35	M. WachaMichael Wacha	STL	227	100.0%	6.0
36	B. MartinBrett Martin	TEX	141	100.0%	6.0
37	D. LawDerek Law	TOR	237	99.9%	6.0
38	M. MontgomeryMike Montgomery	KC	334	99.7%	6.0
39	Y. KikuchiYusei Kikuchi	SEA	406	96.6%	6.0
40	C. StrattonChris Stratton	PIT	162	91.3%	6.0
41	B. JohnsonBrian Johnson	BOS	267	100.0%	6.0
42	J. HoffmanJeff Hoffman	COL	362	100.0%	6.0
43	H. Jin RyuHyun Jin Ryu	LAD	330	100.0%	5.9
44	S. GraySonny Gray	CIN	696	96.5%	5.9
45	R. BuchterRyan Buchter	OAK	176	97.9%	5.9
46	C. KershawClayton Kershaw	LAD	423	96.4%	5.9
47	D. HudsonDakota Hudson	STL	284	99.9%	5.9
48	J. GuerraJunior Guerra	MIL	254	97.1%	5.9
49	L. JacksonLuke Jackson	ATL	105	99.9%	5.9
50	H. HembreeHeath Hembree	BOS	100	100.0%	5.9

CU ext ft: How far toward home plate the pitcher releases the ball, measured in feet from the pitching rubber. Only pitches with this measurement are included. Uses pitches recorded as curveball.

Understanding Curveball: Average Extension

How far toward home plate the pitcher releases the ball, measured in feet from the pitching rubber. Only pitches with this measurement are included. Uses pitches recorded as curveball.

Formula: Sum of recorded extensions ÷ pitches with extension measurements

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 9, 2026, 10:19 AM UTC.