Kirby Yates or William Kempner

Baseball Stats Comparison

Stats
Projections
News & Notes
Schedule

Kirby Yates or William Kempner Player Statistics
	Kirby Yates RP - PIT	William Kempner RP - MIA
2026 Stats


Games Played	44	9

Games Started	0	0

Innings Pitched	39.2	12.1

Wins	2	1

Losses	5	0

Saves	3	0

Blown Saves	3	0

Holds	1	0

Hits Allowed	31	8

Earned Runs	15	4

Home Runs Allowed	3	1

Strikeouts	47	14

Walks	17	4

ERA	3.40	2.92

WHIP	1.21	0.97

Kirby Yates or William Kempner Player Projections
	Kirby Yates RP - PIT	William Kempner RP - MIA
2026 Projections


Games Played	55	21

Games Started	0	0

Innings Pitched	53.9	21.5

Wins	3	1

Losses	3	2

Saves	11	0

Blown Saves	1	0

Holds	10	1

Hits Allowed	43	20

Earned Runs	25	11

Home Runs Allowed	8	3

Strikeouts	65	21

Walks	25	12

ERA	4.23	4.71

WHIP	1.27	1.48

Kirby Yates or William Kempner Player Notes
	Kirby Yates RP - PIT	William Kempner RP - MIA
News
	The Pirates placed RHP Kirby Yates on the 15-day injured list with a right shoulder impingement. Ari Koslow Thu, Sep 3rd	William Kempner has continued his non-throwing rehab. Ari Koslow Thu, Sep 3rd
	The Pirates activated Kirby Yates. Ari Koslow Tue, Aug 4th	The Marlins transferred William Kempner to the 60-day injured list. Ari Koslow Fri, Aug 21st
	The Angels have traded right-hander Kirby Yates to the Pirates in exchange for right-handed pitching prospect Kyle Robinson. Brenton Kemp Mon, Aug 3rd	William Kempner was scheduled to undergo surgery on Wednesday. Ari Koslow Thu, Aug 20th
	Kirby Yates allowed one hit in a scoreless frame to earn the save in a 4-3 win over the Twins. Chris Schommer Sat, Jul 11th	William Kempner is scheduled to undergo elbow surgery. Ari Koslow Wed, Aug 12th
	Kirby Yates struck out one batter to earn the save in Saturday's 5-2 win over the Athletics. Chris Schommer Sun, Jun 28th	The Marlins say William Kempner will be re-evaluated next week. Ari Koslow Fri, Aug 7th
Notes
There are no recent notes for these players

Kirby Yates or William Kempner Player Schedules
Date	Opp	Opp Pitcher	VBR	Opp	Opp Pitcher	VBR
	Kirby Yates RP - PIT			William Kempner RP - MIA
Thu, Mar 26th	@ NYM	Freddy Peralta (9-11)	#49
Sat, Mar 28th	@ NYM	David Peterson (8-8)	#92	vs COL	Michael Lorenzen (3-13)	#161
Sun, Mar 29th	@ NYM	Nolan McLean (11-10)	#44	vs COL	Jose Quintana (2-3)	#376
Mon, Mar 30th	@ CIN	Chase Burns (15-3)	#62	vs CWS	Davis Martin (9-7)	#136
Tue, Mar 31st	@ CIN	Brandon Williamson (4-4)	#371	vs CWS	Erick Fedde (8-9)	#358
Wed, Apr 1st	@ CIN	Andrew Abbott (6-11)	#139	vs CWS	Shane Smith (0-2)	#208
Fri, Apr 3rd	vs BAL	Kyle Bradish (7-14)		@ NYY	Will Warren (10-6)	#45
Sat, Apr 4th	vs BAL	Shane Baz (6-15)	#58	@ NYY	Ryan Weathers (5-8)	#236
Sun, Apr 5th	vs BAL	Chris Bassitt (8-5)	#88	@ NYY	Max Fried (5-4)	#14
Mon, Apr 6th	vs SD	German Marquez (4-2)		vs CIN	Brandon Williamson (4-4)	#371
Tue, Apr 7th	vs SD	Nick Pivetta (3-2)	#60	vs CIN	Andrew Abbott (6-11)	#139
Wed, Apr 8th	vs SD	Michael King (12-9)	#59	vs CIN	Brady Singer (6-15)	#355
Fri, Apr 10th	@ CHC	Shota Imanaga (11-10)	#20	@ DET	Keider Montero (9-9)	#155
Sat, Apr 11th	@ CHC	Edward Cabrera (5-5)	#196	@ DET	Casey Mize (6-9)	#68
Sun, Apr 12th	@ CHC	Jameson Taillon (2-6)		@ DET	Tarik Skubal (10-7)	#1
Mon, Apr 13th	vs WSH	Cade Cavalli (13-5)	#35	@ ATL	Grant Holmes (9-5)	#257
Tue, Apr 14th	vs WSH	PJ Poulin (3-0)		@ ATL	Reynaldo Lopez (4-5)
Wed, Apr 15th	vs WSH	Jake Irvin (2-9)	#198	@ ATL	Bryce Elder (8-8)
Thu, Apr 16th	vs WSH	Foster Griffin (15-5)	#46
Fri, Apr 17th	vs TB	Nick Martinez (15-4)	#56	vs MIL	Coleman Crow (0-1)	#223
Sat, Apr 18th	vs TB	Drew Rasmussen (15-5)	#13	vs MIL	Brandon Woodruff (2-2)
Sun, Apr 19th	vs TB	Shane McClanahan (10-7)	#101	vs MIL	Jacob Misiorowski (15-5)	#4
Tue, Apr 21st	@ TEX	Kumar Rocker (5-11)	#121	vs STL	Dustin May (7-9)	#52
Wed, Apr 22nd	@ TEX	Jack Leiter (3-7)	#258	vs STL	Kyle Leahy (10-5)	#85
Thu, Apr 23rd	@ TEX	Jacob deGrom (11-9)	#9
Fri, Apr 24th	@ MIL	Brandon Woodruff (2-2)		@ SF	Adrian Houser (4-7)
Sat, Apr 25th	@ MIL	Jacob Misiorowski (15-5)	#4	@ SF	Robbie Ray (13-8)	#71
Sun, Apr 26th	@ MIL	Kyle Harrison (10-5)	#75	@ SF	Landen Roupp (9-14)	#149
Mon, Apr 27th	vs STL	Dustin May (7-9)	#52	@ LAD	Yoshinobu Yamamoto (14-8)	#2
Tue, Apr 28th	vs STL	Kyle Leahy (10-5)	#85	@ LAD	Shohei Ohtani (8-2)	#39
Wed, Apr 29th	vs STL	Andre Pallante (12-7)	#122	@ LAD	Tyler Glasnow (5-1)	#15
Thu, Apr 30th	vs STL	Hunter Dobbins (3-3)
Fri, May 1st	vs CIN	Brady Singer (6-15)	#355	vs PHI	Zack Wheeler (13-5)	#5
Sat, May 2nd	vs CIN	Rhett Lowder (6-11)	#308	vs PHI	Andrew Painter (3-9)	#195
Sun, May 3rd	vs CIN	Chase Burns (15-3)	#62	vs PHI	Jesus Luzardo (14-5)
Tue, May 5th	@ ARI	Eduardo Rodriguez (15-7)	#76	vs BAL	Chris Bassitt (8-5)	#88
Wed, May 6th	@ ARI	Michael Soroka (8-5)	#40	vs BAL	Brandon Young (9-4)	#202
Thu, May 7th	@ ARI	Zac Gallen (3-9)	#131	vs BAL	Cade Povich (2-1)	#156
Fri, May 8th	@ SF	Robbie Ray (13-8)	#71	vs WSH	Foster Griffin (15-5)	#46
Sat, May 9th	@ SF	Landen Roupp (9-14)	#149	vs WSH	Richard Lovelady (3-4)	#243
Sun, May 10th	@ SF	Tyler Mahle (7-10)	#41	vs WSH	Cade Cavalli (13-5)	#35
Tue, May 12th	vs COL	Michael Lorenzen (3-13)	#161	@ MIN	Bailey Ober (7-6)	#97
Wed, May 13th	vs COL	Jose Quintana (2-3)	#376	@ MIN	Simeon Woods Richardson (2-7)
Thu, May 14th	vs COL	Chase Dollander (3-3)		@ MIN	Zebby Matthews (9-10)	#108
Fri, May 15th	vs PHI	Aaron Nola (7-10)	#48	@ TB	Ian Seymour (9-7)	#32
Sat, May 16th	vs PHI	Cristopher Sanchez (17-6)	#7	@ TB	Nick Martinez (15-4)	#56
Sun, May 17th	vs PHI	Zack Wheeler (13-5)	#5	@ TB	Drew Rasmussen (15-5)	#13
Tue, May 19th	@ STL	Matthew Liberatore (5-14)	#105	vs ATL	Martin Perez (9-9)	#164
Wed, May 20th	@ STL	Michael McGreevy (7-9)	#113	vs ATL	Chris Sale (14-9)	#3
Thu, May 21st	@ STL	Dustin May (7-9)	#52	vs ATL	Spencer Strider (4-2)
Fri, May 22nd	@ TOR	Kevin Gausman (9-12)	#22	vs NYM	Tobias Myers (1-2)	#150
Sat, May 23rd	@ TOR	Patrick Corbin (3-4)		vs NYM	Freddy Peralta (9-11)	#49
Sun, May 24th	@ TOR	Dylan Cease (11-6)	#8	vs NYM	Christian Scott (4-5)	#73
Mon, May 25th	vs CHC	Ben Brown (4-2)		@ TOR	Trey Yesavage (5-5)	#115
Tue, May 26th	vs CHC	Jordan Wicks (0-2)		@ TOR	Braydon Fisher (3-4)	#188
Wed, May 27th	vs CHC	Jameson Taillon (2-6)		@ TOR	Kevin Gausman (9-12)	#22
Thu, May 28th	vs CHC	Colin Rea (8-8)	#259
Fri, May 29th	vs MIN	Taj Bradley (11-6)	#26	@ NYM	Freddy Peralta (9-11)	#49
Sat, May 30th	vs MIN	Bailey Ober (7-6)	#97	@ NYM	Christian Scott (4-5)	#73
Sun, May 31st	vs MIN	Zebby Matthews (9-10)	#108	@ NYM	Nolan McLean (11-10)	#44
Tue, Jun 2nd	@ HOU	Mike Burrows (4-9)	#167	@ WSH	Richard Lovelady (3-4)	#243
Wed, Jun 3rd	@ HOU	Spencer Arrighetti (8-9)	#291	@ WSH	Andrew Alvarez (2-6)	#142
Thu, Jun 4th	@ HOU	Kai-Wei Teng (5-7)	#169
Fri, Jun 5th	@ ATL	Martin Perez (9-9)	#164	vs TB	Drew Rasmussen (15-5)	#13
Sat, Jun 6th	@ ATL	Spencer Strider (4-2)		vs TB	Shane McClanahan (10-7)	#101
Sun, Jun 7th	@ ATL	Bryce Elder (8-8)		vs TB	Griffin Jax (7-10)	#25
Tue, Jun 9th	vs LAD	Eric Lauer (8-7)		vs ARI	Zac Gallen (3-9)	#131
Wed, Jun 10th	vs LAD	Shohei Ohtani (8-2)	#39	vs ARI	Ryne Nelson (3-5)	#153
Thu, Jun 11th	vs LAD	Justin Wrobleski (11-5)	#99	vs ARI	Merrill Kelly (9-14)	#79
Fri, Jun 12th	vs MIA	Sandy Alcantara (13-10)	#54	@ PIT	Braxton Ashcraft (14-6)
Sat, Jun 13th	vs MIA	Lake Bachar (1-4)	#219	@ PIT	Bubba Chandler (8-9)	#123
Sun, Jun 14th	vs MIA	Max Meyer (9-1)		@ PIT	Paul Skenes (10-11)	#6
Mon, Jun 15th	@ ATH	J.T. Ginn (9-8)		@ PHI	Zack Wheeler (13-5)	#5
Tue, Jun 16th	@ ATH	Jack Perkins (3-11)	#94	@ PHI	Jesus Luzardo (14-5)
Wed, Jun 17th	@ ATH	Aaron Civale (6-7)	#128	@ PHI	Andrew Painter (3-9)	#195
Fri, Jun 19th	@ COL	Kyle Freeland (4-10)	#359	vs SF	Landen Roupp (9-14)	#149
Sat, Jun 20th	@ COL	Tomoyuki Sugano (12-10)	#377	vs SF	Trevor McDonald (3-7)
Sun, Jun 21st	@ COL	Michael Lorenzen (3-13)	#161	vs SF	Logan Webb (8-9)	#19
Tue, Jun 23rd	vs SEA	George Kirby (9-11)	#21	vs TEX	Cal Quantrill (9-5)	#227
Wed, Jun 24th	vs SEA	Bryan Woo (12-9)	#11	vs TEX	Jacob deGrom (11-9)	#9
Thu, Jun 25th	vs SEA	Bryce Miller (4-9)	#72
Fri, Jun 26th	vs CIN	Andrew Abbott (6-11)	#139	@ STL	Michael McGreevy (7-9)	#113
Sat, Jun 27th	vs CIN	Chase Burns (15-3)	#62	@ STL	Andre Pallante (12-7)	#122
Sun, Jun 28th	vs CIN	Brady Singer (6-15)	#355	@ STL	Kyle Leahy (10-5)	#85
Mon, Jun 29th	@ PHI	Aaron Nola (7-10)	#48	@ COL	Sean Sullivan (0-3)	#350
Tue, Jun 30th	@ PHI	Cristopher Sanchez (17-6)	#7	@ COL	Tanner Gordon (1-5)	#369
Wed, Jul 1st	@ PHI	Zack Wheeler (13-5)	#5	@ COL	Kyle Freeland (4-10)	#359
Thu, Jul 2nd	@ PHI	Alan Rangel (0-3)	#346	@ COL	Michael Lorenzen (3-13)	#161
Fri, Jul 3rd	@ WSH	Foster Griffin (15-5)	#46	@ ATH	Jack Perkins (3-11)	#94
Sat, Jul 4th	@ WSH	Carson Palmquist (0-2)	#362	@ ATH	Aaron Civale (6-7)	#128
Sun, Jul 5th	@ WSH	Cade Cavalli (13-5)	#35	@ ATH	Gage Jump (6-11)
Tue, Jul 7th	vs ATL	Hurston Waldrep (0-1)		vs SEA	Bryan Woo (12-9)	#11
Wed, Jul 8th	vs ATL	Grant Holmes (9-5)	#257	vs SEA	George Kirby (9-11)	#21
Thu, Jul 9th	vs ATL	Bryce Elder (8-8)		vs SEA	Bryce Miller (4-9)	#72
Sat, Jul 11th	vs MIL	Shane Drohan (7-5)	#98	vs CLE	Tanner Bibee (6-15)	#42
Sun, Jul 12th	vs MIL	Robert Gasser (4-5)	#114	vs CLE	Joey Cantillo (10-9)	#82
Sat, Jul 18th	@ CLE	Logan Allen (0-0)	#179	@ MIL	Shane Drohan (7-5)	#98
Sun, Jul 19th	@ CLE	Joey Cantillo (10-9)	#82	@ MIL	Robert Gasser (4-5)	#114
Mon, Jul 20th	@ NYY	Ryan Weathers (5-8)	#236	@ HOU	Ronel Blanco (0-1)	#193
Wed, Jul 22nd	@ NYY	Max Fried (5-4)	#14	@ HOU	Peter Lambert (8-10)	#287
Fri, Jul 24th	vs CHC	Matthew Boyd (8-5)	#31	vs SD	German Marquez (4-2)
Sat, Jul 25th	vs CHC	Shota Imanaga (11-10)	#20	vs SD	Randy Vasquez (10-6)	#244
Sun, Jul 26th	vs CHC	Jameson Taillon (2-6)		vs SD	Walker Buehler (8-6)	#225
Mon, Jul 27th	vs ARI	Merrill Kelly (9-14)	#79	vs PHI	Zack Wheeler (13-5)	#5
Tue, Jul 28th	vs ARI	Brandon Pfaadt (7-3)	#66	vs PHI	Aaron Nola (7-10)	#48
Wed, Jul 29th	vs ARI	Eduardo Rodriguez (15-7)	#76	vs PHI	Jesus Luzardo (14-5)
Thu, Jul 30th	@ CIN	Rhett Lowder (6-11)	#308	@ NYM	Nolan McLean (11-10)	#44
Fri, Jul 31st	@ CIN	Hunter Greene (2-2)		@ NYM	Kodai Senga (0-9)	#77
Sat, Aug 1st	@ CIN	Andrew Abbott (6-11)	#139	@ NYM	Zac Thornton (5-5)	#157
Sun, Aug 2nd	@ CIN	Chase Burns (15-3)	#62	@ NYM	Robert Stock (1-3)
Mon, Aug 3rd	@ MIL	Brandon Sproat (3-7)	#289
Tue, Aug 4th	@ MIL	Logan Henderson (10-3)	#17	@ ATL	Grant Holmes (9-5)	#257
Wed, Aug 5th	@ MIL	Kyle Harrison (10-5)	#75	@ ATL	Bryce Elder (8-8)
Thu, Aug 6th	@ MIL	Dustin May (7-9)	#52	@ ATL	Martin Perez (9-9)	#164
Fri, Aug 7th	vs NYM	Zac Thornton (5-5)	#157	vs LAA	George Klassen (2-2)	#264
Sat, Aug 8th	vs NYM	Robert Stock (1-3)		vs LAA	Walbert Urena (9-10)	#194
Sun, Aug 9th	vs NYM	Sean Manaea (5-7)	#65	vs LAA	Grayson Rodriguez (4-8)	#117
Tue, Aug 11th	@ MIA	Eury Perez (7-11)	#61	vs PIT	Paul Skenes (10-11)	#6
Wed, Aug 12th	@ MIA	Janson Junk (6-9)	#106	vs PIT	Carmen Mlodzinski (7-7)	#110
Thu, Aug 13th	@ MIA	Tyler Phillips (5-6)	#221	vs PIT	Braxton Ashcraft (14-6)
Fri, Aug 14th	vs BOS	Jake Bennett (9-7)	#47	@ CIN	Chase Burns (15-3)	#62
Sat, Aug 15th	vs BOS	Sonny Gray (17-5)	#33	@ CIN	Brady Singer (6-15)	#355
Sun, Aug 16th	vs BOS	Patrick Sandoval (1-6)	#104	@ CIN	Nick Lodolo (3-5)	#192
Mon, Aug 17th	vs DET	Framber Valdez (10-11)	#50	@ PHI	Cristopher Sanchez (17-6)	#7
Tue, Aug 18th	vs DET	Keider Montero (9-9)	#155	@ PHI	Zack Wheeler (13-5)	#5
Wed, Aug 19th	vs DET	Jackson Jobe (2-2)	#207	@ PHI	Aaron Nola (7-10)	#48
Fri, Aug 21st	@ LAD	Yoshinobu Yamamoto (14-8)	#2	vs WSH	Brad Lord (5-2)	#170
Sat, Aug 22nd	@ LAD	Tarik Skubal (10-7)	#1	vs WSH	Jake Irvin (2-9)	#198
Sun, Aug 23rd	@ LAD	Blake Snell (4-1)	#74	vs WSH	Jackson Kent (1-4)	#284
Mon, Aug 24th	@ SD	Robbie Ray (13-8)	#71	vs BOS	Ranger Suarez (8-4)	#28
Tue, Aug 25th	@ SD	Michael King (12-9)	#59	vs BOS	Payton Tolle (9-6)	#37
Wed, Aug 26th	@ SD	Randy Vasquez (10-6)	#244	vs BOS	Sonny Gray (17-5)	#33
Fri, Aug 28th	@ STL	Quinn Mathews (2-3)	#210	@ WSH	Jackson Kent (1-4)	#284
Sat, Aug 29th	@ STL	Kyle Leahy (10-5)	#85	@ WSH	Cade Cavalli (13-5)	#35
Sun, Aug 30th	@ STL	Matthew Liberatore (5-14)	#105	@ WSH	Andrew Alvarez (2-6)	#142
Tue, Sep 1st	vs SF	Logan Webb (8-9)	#19	@ KC	Randy Dobnak (3-4)	#375
Wed, Sep 2nd	vs SF	Landen Roupp (9-14)	#149	@ KC	Noah Cameron (9-8)	#57
Thu, Sep 3rd	vs SF	Blade Tidwell (1-2)	#256	@ KC	Michael Wacha (9-9)	#64
Fri, Sep 4th	vs LAA	Ryan Johnson (5-8)	#237	vs CHC	Shota Imanaga (11-10)	#20
Sat, Sep 5th	vs LAA	Yusei Kikuchi (1-6)	#89	vs CHC	Javier Assad (6-1)	#187
Sun, Sep 6th	vs LAA	Walbert Urena (9-10)	#194	vs CHC	Clay Holmes (6-8)	#53
Tue, Sep 8th	@ CWS	Sean Burke (9-7)	#83	vs NYM	Sean Manaea (5-7)	#65
Wed, Sep 9th	@ CWS	Davis Martin (9-7)	#136	vs NYM	Robert Stock (1-3)
Thu, Sep 10th	@ CWS	Hagen Smith (3-2)	#133
Fri, Sep 11th	@ CHC	Shota Imanaga (11-10)	#20	vs LAD	Blake Snell (4-1)	#74
Sat, Sep 12th	@ CHC	Clay Holmes (6-8)	#53	vs LAD	Tyler Glasnow (5-1)	#15
Sun, Sep 13th	@ CHC	Matthew Boyd (8-5)	#31	vs LAD	Emmet Sheehan (5-8)	#95
Tue, Sep 15th	vs MIL	Jacob Misiorowski (15-5)	#4	@ ARI	Michael Soroka (8-5)	#40
Wed, Sep 16th	vs MIL	Logan Henderson (10-3)	#17	@ ARI	Merrill Kelly (9-14)	#79
Thu, Sep 17th	vs MIL	Kyle Harrison (10-5)	#75
Fri, Sep 18th	vs KC	Randy Dobnak (3-4)	#375	@ SD	Nick Pivetta (3-2)	#60
Sat, Sep 19th	vs KC	Noah Cameron (9-8)	#57	@ SD	Casey Mize (6-9)	#68
Sun, Sep 20th	vs KC	Michael Wacha (9-9)	#64	@ SD	Walker Buehler (8-6)	#225
Tue, Sep 22nd	vs STL	Andre Pallante (12-7)	#122	@ CHC	Kevin Gausman (9-12)	#22
Wed, Sep 23rd	vs STL	Matthew Liberatore (5-14)	#105	@ CHC	Shota Imanaga (11-10)	#20
Thu, Sep 24th	vs STL	Kyle Leahy (10-5)	#85	@ CHC	Clay Holmes (6-8)	#53
Fri, Sep 25th	@ DET	Jackson Jobe (2-2)	#207	vs ATL	Grant Holmes (9-5)	#257
Sat, Sep 26th	@ DET	Troy Melton (8-4)	#86	vs ATL	Martin Perez (9-9)	#164
Sun, Sep 27th	@ DET	Keider Montero (9-9)	#155	vs ATL	JR Ritchie (1-3)	#229
Fri, Mar 27th				vs COL	Kyle Freeland (4-10)	#359
Thu, Apr 9th				vs CIN	Rhett Lowder (6-11)	#308
Mon, Apr 20th				vs STL	Michael McGreevy (7-9)	#113
Mon, May 4th				vs PHI	Aaron Nola (7-10)	#48
Mon, May 18th				vs ATL	JR Ritchie (1-3)	#229
Mon, Jun 1st				@ WSH	Cade Cavalli (13-5)	#35
Mon, Jun 22nd				vs TEX	Tyler Alexander (5-2)	#163
Fri, Jul 10th				vs CLE	Parker Messick (12-9)	#24
Fri, Jul 17th				@ MIL	Logan Henderson (10-3)	#17
Tue, Jul 21st				@ HOU	Tatsuya Imai (6-4)	#119
Mon, Aug 31st				@ WSH	Will Dion (1-2)	#180
Mon, Sep 7th				vs NYM	Jonah Tong (2-1)	#145
Mon, Sep 14th				@ ARI	Corbin Burnes (0-0)	#38