Ryan Zeferjahn or William Kempner

Baseball Stats Comparison

Stats
Projections
News & Notes
Schedule

Ryan Zeferjahn or William Kempner Player Statistics
	Ryan Zeferjahn RP - LAA	William Kempner RP - MIA
2026 Stats


Games Played	38	9

Games Started	0	0

Innings Pitched	44.0	12.1

Wins	4	1

Losses	3	0

Saves	2	0

Blown Saves	2	0

Holds	6	0

Hits Allowed	23	8

Earned Runs	19	4

Home Runs Allowed	4	1

Strikeouts	61	14

Walks	31	4

ERA	3.89	2.92

WHIP	1.23	0.97

Ryan Zeferjahn or William Kempner Player Projections
	Ryan Zeferjahn RP - LAA	William Kempner RP - MIA
2026 Projections


Games Played	59	21

Games Started	0	0

Innings Pitched	59.6	21.5

Wins	3	1

Losses	3	2

Saves	1	0

Blown Saves	1	0

Holds	14	1

Hits Allowed	51	20

Earned Runs	30	11

Home Runs Allowed	9	3

Strikeouts	67	21

Walks	31	12

ERA	4.54	4.71

WHIP	1.38	1.48

Ryan Zeferjahn or William Kempner Player Notes
	Ryan Zeferjahn RP - LAA	William Kempner RP - MIA
News
	Ryan Zeferjahn picked up his first save of the season on Tuesday, recording the final four outs as the Angels hung on for a 4-3 victory over the White Sox. David Leisering Wed, May 6th	William Kempner remains shut down from throwing. Ari Koslow Fri, Jul 17th
	Angels reliever Ryan Zeferjahn has made the Opening Day roster, according to manager Kurt Suzuki. Brenton Kemp Tue, Mar 24th	The Miami Marlins placed William Kempner on the 15-day injured list on Sunday due to a right elbow sprain. Nicholas Rodriguez Sun, Jul 12th
		The Marlins recalled William Kempner from Triple-A Jacksonville. Ari Koslow Fri, Jul 3rd
		The Marlins optioned RHP Will Kempner to Triple-A Jacksonville. Ari Koslow Tue, Jun 16th
		The Marlins recalled RHP William Kempner from Triple-A Jacksoville. Ari Koslow Sat, May 30th
Notes
There are no recent notes for these players

Ryan Zeferjahn or William Kempner Player Schedules
Date	Opp	Opp Pitcher	VBR	Opp	Opp Pitcher	VBR
	Ryan Zeferjahn RP - LAA			William Kempner RP - MIA
Thu, Mar 26th	@ HOU	Hunter Brown (1-0)	#21
Fri, Mar 27th	@ HOU	Mike Burrows (4-9)	#184	vs COL	Kyle Freeland (2-8)	#295
Sat, Mar 28th	@ HOU	Cristian Javier (0-1)	#222	vs COL	Michael Lorenzen (3-9)	#427
Sun, Mar 29th	@ HOU	Tatsuya Imai (5-4)	#133	vs COL	Jose Quintana (2-3)	#433
Mon, Mar 30th	@ CHC	Edward Cabrera (5-4)	#97	vs CWS	Davis Martin (9-4)	#84
Tue, Mar 31st	@ CHC	Jameson Taillon (2-5)	#118	vs CWS	Erick Fedde (5-6)	#418
Wed, Apr 1st	@ CHC	Matthew Boyd (5-1)	#37	vs CWS	Shane Smith (0-2)	#162
Fri, Apr 3rd	vs SEA	Bryan Woo (7-6)	#12	@ NYY	Will Warren (7-4)	#66
Sat, Apr 4th	vs SEA	Emerson Hancock (6-4)	#99	@ NYY	Ryan Weathers (3-7)	#44
Sun, Apr 5th	vs SEA	Luis Castillo (3-8)	#65	@ NYY	Max Fried (4-3)	#33
Mon, Apr 6th	vs ATL	Chris Sale (9-6)	#8	vs CIN	Brandon Williamson (2-3)	#347
Tue, Apr 7th	vs ATL	Reynaldo Lopez (4-2)	#75	vs CIN	Andrew Abbott (5-5)	#93
Wed, Apr 8th	vs ATL	Grant Holmes (5-4)	#153	vs CIN	Brady Singer (3-9)	#147
Fri, Apr 10th	@ CIN	Chase Burns (11-1)	#22	@ DET	Keider Montero (5-5)	#163
Sat, Apr 11th	@ CIN	Brandon Williamson (2-3)	#347	@ DET	Casey Mize (4-6)	#39
Sun, Apr 12th	@ CIN	Andrew Abbott (5-5)	#93	@ DET	Tarik Skubal (5-5)	#2
Mon, Apr 13th	@ NYY	Will Warren (7-4)	#66	@ ATL	Grant Holmes (5-4)	#153
Tue, Apr 14th	@ NYY	Ryan Weathers (3-7)	#44	@ ATL	Reynaldo Lopez (4-2)	#75
Wed, Apr 15th	@ NYY	Luis Gil (1-2)	#317	@ ATL	Bryce Elder (5-6)	#124
Thu, Apr 16th	@ NYY	Max Fried (4-3)	#33
Fri, Apr 17th	vs SD	Matt Waldron (1-2)	#275	vs MIL	Coleman Crow (0-1)	#245
Sat, Apr 18th	vs SD	German Marquez (4-2)	#330	vs MIL	Brandon Woodruff (2-2)	#152
Sun, Apr 19th	vs SD	Michael King (6-7)	#51	vs MIL	Jacob Misiorowski (10-4)	#6
Mon, Apr 20th	vs TOR	Dylan Cease (6-4)	#10	vs STL	Michael McGreevy (4-7)	#80
Tue, Apr 21st	vs TOR	Patrick Corbin (3-4)	#229	vs STL	Dustin May (5-6)	#53
Wed, Apr 22nd	vs TOR	Eric Lauer (4-5)	#287	vs STL	Kyle Leahy (7-4)	#129
Fri, Apr 24th	@ KC	Noah Cameron (5-7)	#79	@ SF	Adrian Houser (2-6)	#196
Sat, Apr 25th	@ KC	Cole Ragans (1-4)		@ SF	Robbie Ray (8-6)	#86
Sun, Apr 26th	@ KC	Seth Lugo (3-6)	#120	@ SF	Landen Roupp (6-8)	#55
Mon, Apr 27th	@ CWS	Anthony Kay (6-4)	#167	@ LAD	Yoshinobu Yamamoto (9-6)	#13
Tue, Apr 28th	@ CWS	Davis Martin (9-4)	#84	@ LAD	Shohei Ohtani (8-2)	#1
Wed, Apr 29th	@ CWS	Erick Fedde (5-6)	#418	@ LAD	Tyler Glasnow (3-0)	#60
Fri, May 1st	vs NYM	Christian Scott (3-1)	#67	vs PHI	Zack Wheeler (10-1)	#7
Sat, May 2nd	vs NYM	Nolan McLean (6-6)	#30	vs PHI	Andrew Painter (1-8)	#250
Sun, May 3rd	vs NYM	Clay Holmes (4-4)	#150	vs PHI	Jesus Luzardo (8-4)	#11
Mon, May 4th	vs CWS	Davis Martin (9-4)	#84	vs PHI	Aaron Nola (3-7)	#52
Tue, May 5th	vs CWS	Erick Fedde (5-6)	#418	vs BAL	Chris Bassitt (4-4)	#200
Wed, May 6th	vs CWS	Noah Schultz (3-6)	#223	vs BAL	Brandon Young (7-2)	#136
Fri, May 8th	@ TOR	Dylan Cease (6-4)	#10	vs WSH	Foster Griffin (10-2)	#63
Sat, May 9th	@ TOR	Trey Yesavage (4-4)	#81	vs WSH	Richard Lovelady (2-4)	#313
Sun, May 10th	@ TOR	Spencer Miles (4-1)	#102	vs WSH	Cade Cavalli (5-4)	#77
Mon, May 11th	@ CLE	Joey Cantillo (8-4)	#87
Tue, May 12th	@ CLE	Slade Cecconi (4-6)	#105	@ MIN	Bailey Ober (6-3)	#100
Wed, May 13th	@ CLE	Parker Messick (8-5)	#43	@ MIN	Simeon Woods Richardson (1-7)	#377
Fri, May 15th	vs LAD	Will Klein		@ TB	Ian Seymour (6-2)	#74
Sat, May 16th	vs LAD	Justin Wrobleski (10-2)	#83	@ TB	Nick Martinez (8-2)	#89
Sun, May 17th	vs LAD	Roki Sasaki (3-5)	#123	@ TB	Drew Rasmussen (7-5)	#19
Mon, May 18th	vs ATH	J.T. Ginn (7-6)	#149	vs ATL	JR Ritchie (1-2)	#215
Tue, May 19th	vs ATH	Jacob Lopez (4-3)	#204	vs ATL	Martin Perez (6-6)	#227
Wed, May 20th	vs ATH	Aaron Civale (5-7)	#252	vs ATL	Chris Sale (9-6)	#8
Thu, May 21st	vs ATH	Luis Severino (2-6)	#187	vs ATL	Spencer Strider (4-2)	#185
Fri, May 22nd	vs TEX	Jacob deGrom (7-5)	#5	vs NYM	Tobias Myers (0-2)	#226
Sat, May 23rd	vs TEX	Nathan Eovaldi (9-7)	#15	vs NYM	Freddy Peralta (5-8)	#35
Sun, May 24th	vs TEX	MacKenzie Gore (5-8)	#38	vs NYM	Christian Scott (3-1)	#67
Tue, May 26th	@ DET	Keider Montero (5-5)	#163	@ TOR	Braydon Fisher (3-3)	#164
Wed, May 27th	@ DET	Casey Mize (4-6)	#39	@ TOR	Kevin Gausman (4-8)	#23
Thu, May 28th	@ DET	Jack Flaherty (3-8)	#56
Fri, May 29th	@ TB	Nick Martinez (8-2)	#89	@ NYM	Freddy Peralta (5-8)	#35
Sat, May 30th	@ TB	Drew Rasmussen (7-5)	#19	@ NYM	Christian Scott (3-1)	#67
Sun, May 31st	@ TB	Shane McClanahan (8-5)	#31	@ NYM	Nolan McLean (6-6)	#30
Mon, Jun 1st	vs COL	Kyle Freeland (2-8)	#295	@ WSH	Cade Cavalli (5-4)	#77
Tue, Jun 2nd	vs COL	Tomoyuki Sugano (8-4)	#434	@ WSH	Richard Lovelady (2-4)	#313
Wed, Jun 3rd	vs COL	Michael Lorenzen (3-9)	#427	@ WSH	Andrew Alvarez (2-3)	#156
Fri, Jun 5th	@ LAD	Roki Sasaki (3-5)	#123	vs TB	Drew Rasmussen (7-5)	#19
Sat, Jun 6th	@ LAD	Yoshinobu Yamamoto (9-6)	#13	vs TB	Shane McClanahan (8-5)	#31
Sun, Jun 7th	@ LAD	Emmet Sheehan (4-6)	#40	vs TB	Griffin Jax (5-6)	#58
Mon, Jun 8th	vs HOU	Spencer Arrighetti (7-5)	#138
Tue, Jun 9th	vs HOU	Kai-Wei Teng (4-6)	#269	vs ARI	Zac Gallen (3-9)	#134
Wed, Jun 10th	vs HOU	Peter Lambert (8-5)	#151	vs ARI	Ryne Nelson (3-5)	#203
Fri, Jun 12th	vs TB	Shane McClanahan (8-5)	#31	@ PIT	Braxton Ashcraft (9-3)	#26
Sat, Jun 13th	vs TB	Griffin Jax (5-6)	#58	@ PIT	Bubba Chandler (3-8)	#128
Sun, Jun 14th	vs TB	Casey Legumina		@ PIT	Paul Skenes (8-8)	#3
Mon, Jun 15th	@ ARI	Ryne Nelson (3-5)	#203	@ PHI	Zack Wheeler (10-1)	#7
Tue, Jun 16th	@ ARI	Merrill Kelly (7-8)	#108	@ PHI	Jesus Luzardo (8-4)	#11
Wed, Jun 17th	@ ARI	Eduardo Rodriguez (8-3)	#114	@ PHI	Andrew Painter (1-8)	#250
Thu, Jun 18th	@ ATH	Gage Jump (3-4)	#113
Fri, Jun 19th	@ ATH	Jeffrey Springs (3-9)	#178	vs SF	Landen Roupp (6-8)	#55
Sat, Jun 20th	@ ATH	J.T. Ginn (7-6)	#149	vs SF	Trevor McDonald (3-7)	#171
Sun, Jun 21st	@ ATH	Jack Perkins (2-5)	#116	vs SF	Logan Webb (5-7)	#16
Mon, Jun 22nd	vs BAL	Kyle Bradish (6-9)	#42	vs TEX	Tyler Alexander (1-1)	#154
Tue, Jun 23rd	vs BAL	Shane Baz (4-9)	#70	vs TEX	Cal Quantrill (3-1)	#232
Wed, Jun 24th	vs BAL	Trey Gibson (1-3)	#315	vs TEX	Jacob deGrom (7-5)	#5
Fri, Jun 26th	vs ATH	J.T. Ginn (7-6)	#149	@ STL	Michael McGreevy (4-7)	#80
Sat, Jun 27th	vs ATH	Jack Perkins (2-5)	#116	@ STL	Andre Pallante (10-6)	#140
Sun, Jun 28th	vs ATH	Aaron Civale (5-7)	#252	@ STL	Kyle Leahy (7-4)	#129
Mon, Jun 29th	@ SEA	George Kirby (7-8)	#17	@ COL	Sean Sullivan (0-3)	#426
Tue, Jun 30th	@ SEA	Bryan Woo (7-6)	#12	@ COL	Tanner Gordon (0-2)	#344
Thu, Jul 2nd	@ SEA	Bryce Miller (4-3)	#34	@ COL	Michael Lorenzen (3-9)	#427
Fri, Jul 3rd	vs BOS	Jake Bennett (4-3)	#106	@ ATH	Jack Perkins (2-5)	#116
Sat, Jul 4th	vs BOS	Sonny Gray (11-1)	#25	@ ATH	Aaron Civale (5-7)	#252
Sun, Jul 5th	vs BOS	Ranger Suarez (4-3)	#24	@ ATH	Gage Jump (3-4)	#113
Tue, Jul 7th	@ TEX	Jacob deGrom (7-5)	#5	vs SEA	Bryan Woo (7-6)	#12
Wed, Jul 8th	@ TEX	MacKenzie Gore (5-8)	#38	vs SEA	George Kirby (7-8)	#17
Thu, Jul 9th	@ TEX	Nathan Eovaldi (9-7)	#15	vs SEA	Bryce Miller (4-3)	#34
Fri, Jul 10th	@ MIN	Zebby Matthews (4-6)	#110	vs CLE	Parker Messick (8-5)	#43
Sat, Jul 11th	@ MIN	Joe Ryan (6-5)	#14	vs CLE	Tanner Bibee (3-9)	#45
Sun, Jul 12th	@ MIN	Taj Bradley (9-3)	#46	vs CLE	Joey Cantillo (8-4)	#87
Fri, Jul 17th	vs DET	Troy Melton (5-1)	#92	@ MIL	Logan Henderson (3-1)	#54
Sat, Jul 18th	vs DET	Tarik Skubal (5-5)	#2	@ MIL	Shane Drohan (4-3)	#91
Sun, Jul 19th	vs DET	Casey Mize (4-6)	#39	@ MIL	Robert Gasser (2-4)	#126
Mon, Jul 20th	vs STL	Kyle Leahy (7-4)	#129	@ HOU	Tatsuya Imai (5-4)	#133
Tue, Jul 21st	vs STL	Matthew Liberatore (5-6)	#121	@ HOU	Cristian Javier (0-1)	#222
Wed, Jul 22nd	vs STL	Michael McGreevy (4-7)	#80	@ HOU	Peter Lambert (8-5)	#151
Fri, Jul 24th	@ SF	Logan Webb (5-7)	#16	vs SD	German Marquez (4-2)	#330
Sat, Jul 25th	@ SF	Robbie Ray (8-6)	#86	vs SD	Randy Vasquez (6-6)	#307
Sun, Jul 26th	@ SF	Tyler Mahle (2-8)	#88	vs SD	Walker Buehler (5-5)	#180
Mon, Jul 27th	vs HOU			vs PHI
Tue, Jul 28th	vs HOU			vs PHI
Wed, Jul 29th	vs HOU			vs PHI
Fri, Jul 31st	vs MIL			@ NYM
Sat, Aug 1st	vs MIL			@ NYM
Sun, Aug 2nd	vs MIL			@ NYM
Tue, Aug 4th	@ BAL			@ ATL
Wed, Aug 5th	@ BAL			@ ATL
Thu, Aug 6th	@ BAL			@ ATL
Fri, Aug 7th	@ MIA			vs LAA
Sat, Aug 8th	@ MIA			vs LAA
Sun, Aug 9th	@ MIA			vs LAA
Mon, Aug 10th	vs TEX
Tue, Aug 11th	vs TEX			vs PIT
Wed, Aug 12th	vs TEX			vs PIT
Thu, Aug 13th	vs TEX			vs PIT
Fri, Aug 14th	vs KC			@ CIN
Sat, Aug 15th	vs KC			@ CIN
Sun, Aug 16th	vs KC			@ CIN
Tue, Aug 18th	@ HOU			@ PHI
Wed, Aug 19th	@ HOU			@ PHI
Thu, Aug 20th	@ HOU
Fri, Aug 21st	@ TEX			vs WSH
Sat, Aug 22nd	@ TEX			vs WSH
Sun, Aug 23rd	@ TEX			vs WSH
Mon, Aug 24th	vs CLE			vs BOS
Tue, Aug 25th	vs CLE			vs BOS
Wed, Aug 26th	vs CLE			vs BOS
Fri, Aug 28th	vs PHI			@ WSH
Sat, Aug 29th	vs PHI			@ WSH
Sun, Aug 30th	vs PHI			@ WSH
Mon, Aug 31st	vs NYY			@ WSH
Tue, Sep 1st	vs NYY			@ KC
Wed, Sep 2nd	vs NYY			@ KC
Fri, Sep 4th	@ PIT			vs CHC
Sat, Sep 5th	@ PIT			vs CHC
Sun, Sep 6th	@ PIT			vs CHC
Mon, Sep 7th	@ BOS			vs NYM
Tue, Sep 8th	@ BOS			vs NYM
Wed, Sep 9th	@ BOS			vs NYM
Fri, Sep 11th	@ WSH			vs LAD
Sat, Sep 12th	@ WSH			vs LAD
Sun, Sep 13th	@ WSH			vs LAD
Mon, Sep 14th	vs SEA			@ ARI
Tue, Sep 15th	vs SEA			@ ARI
Wed, Sep 16th	vs SEA			@ ARI
Thu, Sep 17th	vs MIN
Fri, Sep 18th	vs MIN			@ SD
Sat, Sep 19th	vs MIN			@ SD
Sun, Sep 20th	vs MIN			@ SD
Tue, Sep 22nd	@ ATH			@ CHC
Wed, Sep 23rd	@ ATH			@ CHC
Thu, Sep 24th	@ SEA			@ CHC
Fri, Sep 25th	@ SEA			vs ATL
Sat, Sep 26th	@ SEA			vs ATL
Sun, Sep 27th	@ SEA			vs ATL
Thu, Apr 9th				vs CIN	Rhett Lowder (3-6)	#211
Thu, May 7th				vs BAL	Cade Povich (1-1)	#225
Thu, May 14th				@ MIN	Zebby Matthews (4-6)	#110
Mon, May 25th				@ TOR	Trey Yesavage (4-4)	#81
Thu, Jun 11th				vs ARI	Merrill Kelly (7-8)	#108
Wed, Jul 1st				@ COL	Kyle Freeland (2-8)	#295
Thu, Jul 30th				@ NYM
Mon, Aug 17th				@ PHI
Thu, Sep 3rd				@ KC