Player stats

Knuckle curve: Pitches with Extension 2023

Number of pitches with a usable release extension measurement. This is the sample behind average extension. Uses pitches recorded as knuckle curve.

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, 2023. Data refreshed Sep 9, 2026, 10:27 AM UTC.

No. 1 / Knuckle curve: Pitches with Extension / 2023

Drew Smyly

CHC

1187

Season leader

Knuckle curve: Pitches with Extension2023 season
#	Player	Team	KC ext count
1	D. SmylyDrew Smyly	CHC	1187
2	A. NolaAaron Nola	PHI	977
3	Z. GallenZac Gallen	AZ	736
4	H. BrownHunter Brown	HOU	648
5	C. SchmidtClarke Schmidt	NYY	515
6	J. FlahertyJack Flaherty	BAL	511
7	D. CeaseDylan Cease	CWS	494
8	K. FreelandKyle Freeland	COL	426
9	A. CobbAlex Cobb	SF	406
10	G. ColeGerrit Cole	NYY	396
11	L. GilbertLogan Gilbert	SEA	392
12	A. GomberAustin Gomber	COL	362
13	C. KimbrelCraig Kimbrel	PHI	356
14	J. PaxtonJames Paxton	BOS	333
15	C. AbbottCory Abbott	WSH	331
16	G. KirbyGeorge Kirby	SEA	324
17	J. DuranJhoan Duran	MIN	282
18	G. CanningGriffin Canning	LAA	279
19	J. SorianoJosé Soriano	LAA	276
20	K. WrightKyle Wright	ATL	272
21	M. BaumannMike Baumann	BAL	271
22	D. RobertsonDavid Robertson	MIA	269
23	L. WeaverLuke Weaver	NYY	267
24	S. BieberShane Bieber	CLE	266
25	K. CrawfordKutter Crawford	BOS	250
26	S. HjelleSean Hjelle	SF	223
27	C. JavierCristian Javier	HOU	215
28	J. LópezJorge López	BAL	211
29	M. GroveMichael Grove	LAD	195
30	C. RagansCole Ragans	KC	194
31	M. BarnesMatt Barnes	MIA	194
32	B. KellerBrad Keller	KC	172
33	M. MooreMatt Moore	MIA	169
34	T. MegillTrevor Megill	MIL	167
35	J. BritoJhony Brito	NYY	151
36	Y. DarvishYu Darvish	SD	147
37	R. StriplingRoss Stripling	SF	144
38	J. KellyJoe Kelly	LAD	121
39	C. HernándezCarlos Hernández	KC	115
40	M. BrashMatt Brash	SEA	108
41	J. LambertJimmy Lambert	CWS	106
42	D. CoulombeDanny Coulombe	BAL	89
43	D. DunningDane Dunning	TEX	85
44	A. DeSclafaniAnthony DeSclafani	SF	79
45	C. SelbyColin Selby	PIT	75
46	D. Lynch IVDaniel Lynch IV	KC	69
47	C. KuhlChad Kuhl	WSH	68
48	G. MárquezGermán Márquez	COL	53
49	T. GilbertTyler Gilbert	AZ	35
50	J. MeansJohn Means	BAL	32

KC ext count: Number of pitches with a usable release extension measurement. This is the sample behind average extension. Uses pitches recorded as knuckle curve.

Understanding Knuckle curve: Pitches with Extension

Number of pitches with a usable release extension measurement. This is the sample behind average extension. Uses pitches recorded as knuckle curve.

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, 10:27 AM UTC.