Welinton Herrera or Zack Kelly

Baseball Stats Comparison

Stats
Projections
News & Notes
Schedule

Welinton Herrera or Zack Kelly Player Statistics
	Zack Kelly SP,RP - BOS	Welinton Herrera RP - COL
2026 Stats


Games Played	17	3

Games Started	0	0

Innings Pitched	16.1	2.1

Wins	0	0

Losses	2	0

Saves	0	0

Blown Saves	1	0

Holds	3	0

Hits Allowed	14	2

Earned Runs	6	0

Home Runs Allowed	1	0

Strikeouts	14	2

Walks	7	1

ERA	3.31	0.00

WHIP	1.29	1.29

Welinton Herrera or Zack Kelly Player Projections
	Zack Kelly SP,RP - BOS	Welinton Herrera RP - COL
2026 Projections


Games Played	51	24

Games Started	0	0

Innings Pitched	54.0	24.0

Wins	3	1

Losses	3	2

Saves	0	0

Blown Saves	0	0

Holds	9	1

Hits Allowed	50	24

Earned Runs	28	12

Home Runs Allowed	7	3

Strikeouts	53	24

Walks	25	11

ERA	4.59	4.45

WHIP	1.38	1.43

Welinton Herrera or Zack Kelly Player Notes
	Zack Kelly SP,RP - BOS	Welinton Herrera RP - COL
News
	The Red Sox placed Zack Kelly on the 60-day injured list. Ari Koslow Tue, Jul 21st	Welinton Herrera will undergo season-ending Tommy John surgery. Nicholas Rodriguez Tue, Jun 30th
	The Red Sox officially optioned Zack Kelly to Triple-A. Ari Koslow Fri, May 22nd	Welinton Herrera is receiving a second opinion on his UCL tear. Nicholas Rodriguez Sat, Jun 6th
	The Red Sox optioned Zack Kelly to Triple-A Worcester. Ari Koslow Thu, May 21st	Welinton Herrera (elbow) has been transferred to the 60-day IL by the Colorado Rockies. The move allows an open spot on the 40-man roster for righthander TJ Shook, who was called up on Monday. David Leisering Mon, Jun 1st
	Zack Kelly has been called up from Triple-A. Vince DiSilvio Fri, Apr 3rd	The Rockies placed Welinton Herrera on the 15-day injured list with left elbow inflammation. Ari Koslow Sat, May 30th
	The Red Sox optioned RHP Zack Kelly to Triple-A Worcester. Ari Koslow Mon, Mar 23rd	The Rockies recalled LHP Welinton Herrera from Triple-A Albuquerque. Ari Koslow Mon, May 25th
Notes
There are no recent notes for these players

Welinton Herrera or Zack Kelly Player Schedules
Date	Opp	Opp Pitcher	VBR	Opp	Opp Pitcher	VBR
	Zack Kelly SP,RP - BOS			Welinton Herrera RP - COL
Fri, Mar 27th				@ MIA	Sandy Alcantara (13-8)	#59
Sat, Mar 28th	@ CIN	Brady Singer (5-12)	#223	@ MIA	Eury Perez (7-10)	#50
Sun, Mar 29th	@ CIN	Rhett Lowder (6-8)	#219	@ MIA	Max Meyer (9-1)
Mon, Mar 30th	@ HOU	Lance McCullers Jr. (2-3)		@ TOR	Cody Ponce (0-0)
Tue, Mar 31st	@ HOU	Hunter Brown (4-3)	#26	@ TOR	Max Scherzer (1-7)	#149
Wed, Apr 1st	@ HOU	Mike Burrows (4-9)	#182	@ TOR	Kevin Gausman (8-11)	#23
Fri, Apr 3rd	vs SD	Michael King (8-9)	#55	vs PHI	Aaron Nola (5-10)	#47
Sat, Apr 4th	vs SD	Randy Vasquez (10-6)	#252	vs PHI	Jesus Luzardo (12-5)	#9
Sun, Apr 5th	vs SD	Walker Buehler (8-6)	#212	vs PHI	Taijuan Walker (1-4)
Mon, Apr 6th	vs MIL	Brandon Woodruff (2-2)		vs HOU	Cody Bolton (0-1)	#375
Tue, Apr 7th	vs MIL	Jacob Misiorowski (14-5)	#6	vs HOU	Mike Burrows (4-9)	#182
Wed, Apr 8th	vs MIL	Shane Drohan (7-5)	#115	vs HOU	Cristian Javier (1-5)	#158
Thu, Apr 9th				@ SD	Randy Vasquez (10-6)	#252
Fri, Apr 10th	@ STL	Dustin May (6-8)	#44	@ SD	Walker Buehler (8-6)	#212
Sat, Apr 11th	@ STL	Kyle Leahy (10-4)	#96	@ SD	German Marquez (4-2)	#423
Sun, Apr 12th	@ STL	Andre Pallante (12-6)	#274	@ SD	Nick Pivetta (1-2)	#192
Tue, Apr 14th	@ MIN	Mick Abel (1-2)		@ HOU	Colton Gordon (0-0)	#318
Wed, Apr 15th	@ MIN	Simeon Woods Richardson (2-7)	#358	@ HOU	Spencer Arrighetti (7-7)	#200
Thu, Apr 16th				@ HOU	Ryan Weiss (0-3)	#393
Fri, Apr 17th	vs DET	Casey Mize (5-8)	#41	vs LAD	Tyler Glasnow (3-0)	#18
Sat, Apr 18th	vs DET	Tarik Skubal (8-7)	#2	vs LAD	Emmet Sheehan (4-8)	#106
Sun, Apr 19th	vs DET	Framber Valdez (8-9)	#45	vs LAD	Roki Sasaki (5-5)	#159
Mon, Apr 20th	vs DET	Jack Flaherty (3-8)	#101	vs LAD	Justin Wrobleski (11-5)	#134
Tue, Apr 21st	vs NYY	Luis Gil (1-2)	#408	vs SD	Randy Vasquez (10-6)	#252
Wed, Apr 22nd	vs NYY	Max Fried (4-4)	#17	vs SD	Walker Buehler (8-6)	#212
Thu, Apr 23rd	vs NYY	Cam Schlittler (12-6)	#14	vs SD	Matt Waldron (1-2)	#211
Fri, Apr 24th	@ BAL	Brandon Young (9-3)	#167	@ NYM	Freddy Peralta (6-11)	#38
Sun, Apr 26th	@ BAL	Kyle Bradish (7-12)	#53	@ NYM	Kodai Senga (0-9)	#102
Tue, Apr 28th	@ TOR	Trey Yesavage (5-5)	#222	@ CIN	Chase Burns (14-3)	#22
Wed, Apr 29th	@ TOR	Eric Lauer (8-6)	#227	@ CIN	Brandon Williamson (2-3)	#277
Thu, Apr 30th				@ CIN	Andrew Abbott (6-10)	#90
Fri, May 1st	vs HOU	Mike Burrows (4-9)	#182	vs ATL	Grant Holmes (9-5)	#196
Sat, May 2nd	vs HOU	Spencer Arrighetti (7-7)	#200	vs ATL	Chris Sale (13-9)	#4
Sun, May 3rd	vs HOU	Cody Bolton (0-1)	#375	vs ATL	Spencer Strider (4-2)	#315
Mon, May 4th	@ DET	Tyler Holton (1-5)	#91	vs NYM	Huascar Brazoban (5-2)	#264
Wed, May 6th	@ DET	Jack Flaherty (3-8)	#101	vs NYM	Freddy Peralta (6-11)	#38
Thu, May 7th	vs TB	Griffin Jax (6-9)	#86	vs NYM	Christian Scott (4-4)	#60
Fri, May 8th	vs TB	Jesse Scholtens (5-3)	#261	@ PHI	Jesus Luzardo (12-5)	#9
Sat, May 9th				@ PHI	Aaron Nola (5-10)	#47
Sun, May 10th	vs TB	Nick Martinez (13-4)	#71	@ PHI	Cristopher Sanchez (16-4)	#3
Tue, May 12th	vs PHI	Zack Wheeler (10-5)	#12	@ PIT	Paul Skenes (9-11)	#5
Wed, May 13th	vs PHI	Andrew Painter (3-8)	#198	@ PIT	Mitch Keller (6-8)
Thu, May 14th	vs PHI	Jesus Luzardo (12-5)	#9	@ PIT	Mason Montgomery (5-3)	#77
Fri, May 15th	@ ATL	Spencer Strider (4-2)	#315	vs ARI	Merrill Kelly (9-12)	#129
Sat, May 16th	@ ATL	Bryce Elder (8-7)	#187	vs ARI	Eduardo Rodriguez (14-4)	#82
Sun, May 17th	@ ATL	Grant Holmes (9-5)	#196	vs ARI	Michael Soroka (8-4)	#111
Mon, May 18th	@ KC	Seth Lugo (6-7)	#155	vs TEX	MacKenzie Gore (7-10)	#35
Tue, May 19th	@ KC	Bailey Falter (0-2)		vs TEX	Tyler Alexander (4-2)	#136
Wed, May 20th	@ KC	Michael Wacha (8-8)	#69	vs TEX	Jack Leiter (3-7)	#229
Thu, May 21st				@ ARI	Eduardo Rodriguez (14-4)	#82
Fri, May 22nd	vs MIN	Connor Prielipp (3-7)	#81	@ ARI	Michael Soroka (8-4)	#111
Sat, May 23rd	vs MIN	Taj Bradley (9-6)	#40	@ ARI	Zac Gallen (3-9)	#177
Sun, May 24th	vs MIN	Bailey Ober (7-4)	#108	@ ARI	Ryne Nelson (3-5)	#132
Mon, May 25th				@ LAD	Emmet Sheehan (4-8)	#106
Tue, May 26th	vs ATL	Spencer Strider (4-2)	#315	@ LAD	Eric Lauer (8-6)	#227
Wed, May 27th	vs ATL	Bryce Elder (8-7)	#187	@ LAD	Shohei Ohtani (8-2)	#1
Fri, May 29th	@ CLE	Slade Cecconi (4-7)	#130	vs SF	Logan Webb (8-8)	#21
Sat, May 30th	@ CLE	Parker Messick (10-8)	#32	vs SF	Adrian Houser (4-7)	#328
Sun, May 31st	@ CLE	Tanner Bibee (5-14)	#46	vs SF	Robbie Ray (11-7)	#83
Mon, Jun 1st				@ LAA	Jose Soriano (11-7)	#36
Tue, Jun 2nd	vs BAL	Shane Baz (5-14)	#64	@ LAA	Grayson Rodriguez (4-5)	#109
Wed, Jun 3rd	vs BAL	Chris Bassitt (5-4)	#110	@ LAA	Walbert Urena (8-9)	#243
Fri, Jun 5th	@ NYY	Ryan Weathers (5-8)	#233	vs MIL	Brandon Sproat (3-7)	#163
Sat, Jun 6th				vs MIL	Jacob Misiorowski (14-5)	#6
Sun, Jun 7th	@ NYY	Cam Schlittler (12-6)	#14	vs MIL	Shane Drohan (7-5)	#115
Tue, Jun 9th	@ TB	Nick Martinez (13-4)	#71	vs CHC	Colin Rea (8-8)	#169
Wed, Jun 10th	@ TB	Drew Rasmussen (14-5)	#15	vs CHC	Shota Imanaga (8-9)	#29
Thu, Jun 11th				vs CHC	Edward Cabrera (5-5)	#133
Fri, Jun 12th	vs TEX	Jack Leiter (3-7)	#229	@ ATH	Gage Jump (6-8)	#72
Sat, Jun 13th	vs TEX	Jacob deGrom (9-9)	#7	@ ATH	Joey Estes (0-0)	#417
Sun, Jun 14th	vs TEX	Nathan Eovaldi (10-9)	#80	@ ATH	Jeffrey Springs (3-12)	#251
Mon, Jun 15th				@ CHC	Shota Imanaga (8-9)	#29
Tue, Jun 16th	vs TOR	Dylan Cease (9-5)	#10	@ CHC	Edward Cabrera (5-5)	#133
Wed, Jun 17th	vs TOR	Braydon Fisher (3-4)	#143	@ CHC	Javier Assad (6-1)	#165
Fri, Jun 19th	@ SEA	Bryce Miller (4-8)	#73	vs PIT	Bubba Chandler (6-9)	#116
Sat, Jun 20th	@ SEA	Emerson Hancock (7-8)	#65	vs PIT	Paul Skenes (9-11)	#5
Sun, Jun 21st	@ SEA	Logan Gilbert (11-7)	#13	vs PIT	Jared Jones (2-6)	#63
Mon, Jun 22nd	@ COL	Ryan Feltner (5-8)	#435	vs BOS	Jake Bennett (9-6)	#92
Tue, Jun 23rd	@ COL	Sean Sullivan (0-3)	#425	vs BOS	Sonny Gray (16-4)	#25
Wed, Jun 24th	@ COL	Kyle Freeland (4-10)	#419	vs BOS	Ranger Suarez (5-3)	#30
Fri, Jun 26th	vs NYY	Will Warren (8-6)	#57	@ MIN	Taj Bradley (9-6)	#40
Sat, Jun 27th	vs NYY	Gerrit Cole (7-7)	#19	@ MIN	Mike Paredes (0-3)	#326
Sun, Jun 28th	vs NYY	Carlos Rodon (4-3)	#42	@ MIN	Connor Prielipp (3-7)	#81
Mon, Jun 29th	vs WSH	Miles Mikolas (3-9)		vs MIA	Sandy Alcantara (13-8)	#59
Tue, Jun 30th	vs WSH	Cade Cavalli (12-5)	#61	vs MIA	Eury Perez (7-10)	#50
Wed, Jul 1st	vs WSH	Brad Lord (5-2)	#161	vs MIA	Max Meyer (9-1)
Thu, Jul 2nd				vs MIA	Ryan Gusto (1-3)	#154
Fri, Jul 3rd	@ LAA	Reid Detmers (4-8)	#39	vs SF	Logan Webb (8-8)	#21
Sat, Jul 4th	@ LAA	Sam Aldegheri (3-4)	#428	vs SF	Robbie Ray (11-7)	#83
Sun, Jul 5th	@ LAA	Ryan Johnson (3-7)	#216	vs SF	Tyler Mahle (5-10)	#68
Mon, Jul 6th				@ LAD	Eric Lauer (8-6)	#227
Tue, Jul 7th	@ CWS	Noah Schultz (3-9)	#382	@ LAD	Justin Wrobleski (11-5)	#134
Wed, Jul 8th	@ CWS	Davis Martin (9-6)	#121	@ LAD	Roki Sasaki (5-5)	#159
Thu, Jul 9th	@ CWS	Anthony Kay (9-6)	#173	@ SF	Carson Whisenhunt (3-4)
Fri, Jul 10th	@ NYM	Nolan McLean (10-8)	#33	@ SF	Robbie Ray (11-7)	#83
Sat, Jul 11th	@ NYM	Freddy Peralta (6-11)	#38	@ SF	Tyler Mahle (5-10)	#68
Sun, Jul 12th	@ NYM	Zac Thornton (3-4)	#137	@ SF	Trevor McDonald (3-7)
Fri, Jul 17th	vs TB	Mason Englert (0-3)	#225	vs CIN	Brady Singer (5-12)	#223
Sat, Jul 18th	vs TB	Ian Seymour (9-5)	#66	vs CIN	Rhett Lowder (6-8)	#219
Sun, Jul 19th	vs TB	Shane McClanahan (10-6)	#52	vs CIN	Hunter Greene (2-2)
Mon, Jul 20th	vs BAL	Shane Baz (5-14)	#64	vs WSH	Andrew Alvarez (2-6)	#144
Tue, Jul 21st				vs WSH	Carson Palmquist (0-2)	#416
Wed, Jul 22nd	vs BAL	Kyle Bradish (7-12)	#53	vs WSH	Cade Cavalli (12-5)	#61
Fri, Jul 24th	vs TOR	Trey Yesavage (5-5)	#222	@ MIL	Shane Drohan (7-5)	#115
Sat, Jul 25th	vs TOR	Dylan Cease (9-5)	#10	@ MIL	Robert Gasser (4-5)	#98
Sun, Jul 26th	vs TOR	Kevin Gausman (8-11)	#23	@ MIL	Jacob Misiorowski (14-5)	#6
Tue, Jul 28th	@ ATH	Gage Jump (6-8)	#72	@ SD	Michael King (8-9)	#55
Wed, Jul 29th	@ ATH	Jacob Lopez (5-4)	#175	@ SD	Kyle Hart (0-3)	#156
Fri, Jul 31st	@ LAD	Edgardo Henriquez		vs KC	Michael Wacha (8-8)	#69
Sat, Aug 1st	@ LAD	Yoshinobu Yamamoto (12-8)	#8	vs KC	Luinder Avila (5-4)
Sun, Aug 2nd	@ LAD	Emmet Sheehan (4-8)	#106	vs KC	Seth Lugo (6-7)	#155
Mon, Aug 3rd				vs TB	Ian Seymour (9-5)	#66
Tue, Aug 4th	vs CWS	Davis Martin (9-6)	#121	vs TB	Freddy Peralta (6-11)	#38
Wed, Aug 5th	vs CWS	Sean Burke (7-6)	#78	vs TB	Nick Martinez (13-4)	#71
Fri, Aug 7th	vs ATH	Jack Perkins (3-10)	#138	@ STL	Kyle Leahy (10-4)	#96
Sat, Aug 8th	vs ATH	Gage Jump (6-8)	#72	@ STL	Matthew Liberatore (5-12)	#100
Sun, Aug 9th	vs ATH	J.T. Ginn (9-8)	#193	@ STL	Michael McGreevy (5-9)	#122
Mon, Aug 10th	@ TOR	Jameson Taillon (2-6)	#179	@ ARI	Michael Soroka (8-4)	#111
Tue, Aug 11th	@ TOR	Dylan Cease (9-5)	#10	@ ARI	Mitch Bratt (1-3)	#287
Wed, Aug 12th	@ TOR	Jose Soriano (11-7)	#36	@ ARI	Merrill Kelly (9-12)	#129
Fri, Aug 14th	@ PIT	Bubba Chandler (6-9)	#116	@ SF	Landen Roupp (8-13)	#74
Sat, Aug 15th	@ PIT	Jared Jones (2-6)	#63	@ SF	Logan Webb (8-8)	#21
Sun, Aug 16th	@ PIT	Lake Bachar (1-3)	#248	@ SF	Blade Tidwell (0-1)	#184
Mon, Aug 17th	vs ARI	Mitch Bratt (1-3)	#287	vs LAD	Blake Snell (2-1)	#16
Tue, Aug 18th	vs ARI	Merrill Kelly (9-12)	#129	vs LAD	Eric Lauer (8-6)	#227
Wed, Aug 19th	vs ARI	Brandon Pfaadt (7-1)	#76	vs LAD	Roki Sasaki (5-5)	#159
Fri, Aug 21st	vs SF	Logan Webb (8-8)	#21	vs CLE	Joey Cantillo (9-7)	#79
Sat, Aug 22nd	vs SF	Blade Tidwell (0-1)	#184	vs CLE	Tanner Bibee (5-14)	#46
Sun, Aug 23rd	vs SF	Matt Wilkinson (0-2)	#191	vs CLE	Foster Griffin (15-4)	#37
Mon, Aug 24th	@ MIA	Sandy Alcantara (13-8)	#59	@ WSH	Cade Cavalli (12-5)	#61
Tue, Aug 25th	@ MIA	Tyler Phillips (3-6)	#236	@ WSH	Andrew Alvarez (2-6)	#144
Wed, Aug 26th	@ MIA	Ryan Gusto (1-3)	#154	@ WSH	Matt Waldron (1-2)	#211
Thu, Aug 27th				@ WSH	Jake Irvin (2-8)	#195
Fri, Aug 28th	@ NYY	Cam Schlittler (12-6)	#14	@ ATL	Grant Holmes (9-5)	#196
Sat, Aug 29th	@ NYY	Max Fried (4-4)	#17	@ ATL	Martin Perez (8-8)	#226
Sun, Aug 30th	@ NYY	Will Warren (8-6)	#57	@ ATL	Tyler Mahle (5-10)	#68
Mon, Aug 31st	vs SEA	George Kirby (9-10)	#24	vs BAL	Kyle Bradish (7-12)	#53
Tue, Sep 1st	vs SEA	Bryan Woo (9-9)	#11	vs BAL	Trevor Rogers (9-9)	#56
Wed, Sep 2nd	vs SEA	Emerson Hancock (7-8)	#65	vs BAL	Brandon Young (9-3)	#167
Fri, Sep 4th	@ BAL	Chris Bassitt (5-4)	#110	vs STL	Kyle Leahy (10-4)	#96
Sat, Sep 5th	@ BAL	Kyle Bradish (7-12)	#53	vs STL	Matthew Liberatore (5-12)	#100
Sun, Sep 6th	@ BAL	Trevor Rogers (9-9)	#56	vs STL	Michael McGreevy (5-9)	#122
Tue, Sep 8th	vs LAA	Walbert Urena (8-9)	#243	@ NYY	Gerrit Cole (7-7)	#19
Wed, Sep 9th	vs LAA			@ NYY
Thu, Sep 10th				@ NYY
Fri, Sep 11th	vs KC			@ DET
Sat, Sep 12th	vs KC			@ DET
Sun, Sep 13th	vs KC			@ DET
Mon, Sep 14th				vs SD
Tue, Sep 15th	@ TEX			vs SD
Wed, Sep 16th	@ TEX			vs SD
Thu, Sep 17th	@ TEX			vs SD
Fri, Sep 18th	@ TB			vs SEA
Sat, Sep 19th	@ TB			vs SEA
Sun, Sep 20th	@ TB			vs SEA
Tue, Sep 22nd	vs CLE			vs ARI
Wed, Sep 23rd	vs CLE			vs ARI
Thu, Sep 24th	vs CLE			vs ARI
Fri, Sep 25th	vs CHC			@ CWS
Sat, Sep 26th	vs CHC			@ CWS
Sun, Sep 27th	vs CHC			@ CWS
Thu, Mar 26th	@ CIN	Andrew Abbott (6-10)	#90
Mon, Apr 13th	@ MIN	Bailey Ober (7-4)	#108
Sat, Apr 25th	@ BAL	Trevor Rogers (9-9)	#56
Mon, Apr 27th	@ TOR	Dylan Cease (9-5)	#10
Tue, May 5th	@ DET	Framber Valdez (8-9)	#45
Thu, May 28th	vs ATL	Chris Sale (13-9)	#4
Thu, Jun 4th	vs BAL	Trevor Rogers (9-9)	#56
Mon, Jun 8th	@ TB	Ian Seymour (9-5)	#66
Thu, Jun 18th	vs TOR	Trey Yesavage (5-5)	#222
Thu, Jun 25th	vs NYY	Cam Schlittler (12-6)	#14
Mon, Jul 27th	@ ATH	Jack Perkins (3-10)	#138
Thu, Jul 30th	@ ATH	Mason Barnett (1-4)	#434
Thu, Aug 6th	vs CWS	Luis Castillo (4-10)	#97
Thu, Aug 13th	@ TOR	Max Scherzer (1-7)	#149
Thu, Sep 3rd	@ BAL	Shane Baz (5-14)	#64
Mon, Sep 7th	vs LAA	George Klassen (2-2)	#230