A.J. Causey or Riley O'Brien

Baseball Stats Comparison

Stats
Projections
News & Notes
Schedule

A.J. Causey or Riley O'Brien Player Statistics
	Riley O'Brien RP - STL	A.J. Causey RP - ATH
2026 Stats


Games Played	63	‐

Games Started	0	‐

Innings Pitched	61.0	‐

Wins	3	‐

Losses	8	‐

Saves	37	‐

Blown Saves	8	‐

Holds	1	‐

Hits Allowed	50	‐

Earned Runs	28	‐

Home Runs Allowed	4	‐

Strikeouts	62	‐

Walks	28	‐

ERA	4.13	‐

WHIP	1.28	‐

A.J. Causey or Riley O'Brien Player Projections
	Riley O'Brien RP - STL	A.J. Causey RP - ATH
2026 Projections


Games Played	59	12

Games Started	0	0

Innings Pitched	60.2	12.1

Wins	3	1

Losses	3	1

Saves	14	0

Blown Saves	1	0

Holds	11	1

Hits Allowed	52	12

Earned Runs	26	6

Home Runs Allowed	5	2

Strikeouts	63	10

Walks	27	5

ERA	3.92	4.40

WHIP	1.31	1.38

A.J. Causey or Riley O'Brien Player Notes
	Riley O'Brien RP - STL	A.J. Causey RP - ATH
News
	Riley O'Brien struck out two batters while allowing one hit and one walk in a scoreless appearance to earn the save in Monday's 2-1 win over the Giants. Chase Davis Tue, Sep 15th	The Athletics reassigned RHP A.J. Causey to minor league camp. Ari Koslow Mon, Mar 2nd
	Riley O'Brien allowed two earned runs on one hit and one walk while striking out two across one inning in Saturday's 6-5 loss to the White Sox. Chase Davis Sun, Sep 13th	The Athletics acquired A.J. Causey from the Royals in exchange for Mitch Spence. Ari Koslow Thu, Feb 12th
	Riley O'Brien struck out two batters while allowing one hit in a scoreless outing to earn the save in Friday's 7-6 win over the Rockies. Chase Davis Sat, Sep 5th
	Riley O'Brien struck out one batter while allowing the ghost runner to score to earn the save in Wednesday's 8-6 win over the Dodgers. Chase Davis Thu, Sep 3rd
	Riley O'Brien struck out one batter while allowing one hit in a scoreless appearance to earn the save in Thursday's 7-5 win over the Orioles. Chase Davis Fri, Aug 28th
Notes
There are no recent notes for these players

A.J. Causey or Riley O'Brien Player Schedules
Date	Opp	Opp Pitcher	VBR	Opp	Opp Pitcher	VBR
	Riley O'Brien RP - STL			A.J. Causey RP - ATH
Fri, Mar 27th				@ TOR	Kevin Gausman (9-12)	#32
Sat, Mar 28th	vs TB	Joe Boyle (0-1)	#204	@ TOR	Dylan Cease (11-5)	#4
Sun, Mar 29th	vs TB	Steven Matz (5-5)	#160	@ TOR	Eric Lauer (8-7)
Mon, Mar 30th	vs NYM	Clay Holmes (6-7)	#64	@ ATL	Bryce Elder (8-8)
Tue, Mar 31st	vs NYM	Kodai Senga (0-9)	#79	@ ATL	Jose Suarez
Wed, Apr 1st	vs NYM	Freddy Peralta (9-11)	#44	@ ATL	Chris Sale (14-9)	#5
Fri, Apr 3rd	@ DET	Framber Valdez (10-10)	#36	vs HOU	Cristian Javier (2-5)	#102
Sat, Apr 4th	@ DET	Jack Flaherty (3-8)	#66	vs HOU	Tatsuya Imai (6-4)	#186
Sun, Apr 5th	@ DET	Keider Montero (9-8)	#127	vs HOU	Lance McCullers Jr. (2-3)
Tue, Apr 7th	@ WSH	Cade Cavalli (12-5)	#54	@ NYY	Cam Schlittler (14-6)	#13
Wed, Apr 8th	@ WSH	Miles Mikolas (3-9)		@ NYY	Will Warren (10-6)	#61
Thu, Apr 9th				@ NYY	Ryan Weathers (5-8)	#144
Fri, Apr 10th	vs BOS	Connelly Early (7-5)	#201	@ NYM	Clay Holmes (6-7)	#64
Sat, Apr 11th	vs BOS	Ranger Suarez (7-4)	#41	@ NYM	Kodai Senga (0-9)	#79
Sun, Apr 12th	vs BOS	Brayan Bello (6-7)	#111	@ NYM	Freddy Peralta (9-11)	#44
Mon, Apr 13th	vs CLE	Gavin Williams (13-8)	#18	vs TEX	Nathan Eovaldi (10-9)	#122
Tue, Apr 14th	vs CLE	Joey Cantillo (9-9)	#65	vs TEX	MacKenzie Gore (8-11)	#48
Wed, Apr 15th	vs CLE	Slade Cecconi (4-7)	#148	vs TEX	Kumar Rocker (5-11)	#119
Thu, Apr 16th				vs TEX	Jack Leiter (3-7)	#212
Fri, Apr 17th	@ HOU	Peter Lambert (8-9)	#181	vs CWS	Davis Martin (9-7)	#91
Sat, Apr 18th	@ HOU	Lance McCullers Jr. (2-3)		vs CWS	Erick Fedde (8-9)	#365
Sun, Apr 19th	@ HOU	Mike Burrows (4-9)	#259	vs CWS	Noah Schultz (3-9)	#242
Mon, Apr 20th	@ MIA	Max Meyer (9-1)		@ SEA	Emerson Hancock (7-8)	#208
Tue, Apr 21st	@ MIA	Chris Paddack (0-7)		@ SEA	Luis Castillo (4-11)	#114
Wed, Apr 22nd	@ MIA	Janson Junk (6-9)	#110	@ SEA	Logan Gilbert (12-9)	#6
Fri, Apr 24th	vs SEA	George Kirby (9-11)	#22	@ TEX	Nathan Eovaldi (10-9)	#122
Sat, Apr 25th	vs SEA	Bryan Woo (12-9)	#16	@ TEX	MacKenzie Gore (8-11)	#48
Sun, Apr 26th	vs SEA	Emerson Hancock (7-8)	#208	@ TEX	Kumar Rocker (5-11)	#119
Tue, Apr 28th	@ PIT	Braxton Ashcraft (14-6)		vs KC	Kris Bubic (3-2)	#162
Wed, Apr 29th	@ PIT	Bubba Chandler (8-9)	#107	vs KC	Michael Wacha (9-8)	#71
Thu, Apr 30th	@ PIT	Paul Skenes (10-11)	#11	vs KC	Noah Cameron (9-8)	#72
Fri, May 1st	vs LAD	Emmet Sheehan (5-8)	#112	vs CLE	Joey Cantillo (9-9)	#65
Sat, May 2nd	vs LAD	Roki Sasaki (5-5)	#76	vs CLE	Slade Cecconi (4-7)	#148
Sun, May 3rd	vs LAD	Justin Wrobleski (11-5)	#182	vs CLE	Parker Messick (11-9)	#31
Tue, May 5th				@ PHI	Cristopher Sanchez (17-5)	#3
Wed, May 6th	vs MIL	Brandon Sproat (3-7)	#170	@ PHI	Zack Wheeler (12-5)	#7
Thu, May 7th	@ SD	Michael King (11-9)	#55	@ PHI	Andrew Painter (3-9)	#113
Fri, May 8th	@ SD	Griffin Canning (4-9)	#154	@ BAL	Kyle Bradish (7-14)
Sat, May 9th	@ SD	Randy Vasquez (10-6)	#326	@ BAL	Shane Baz (6-15)	#86
Sun, May 10th	@ SD	Walker Buehler (8-6)	#153	@ BAL	Keegan Akin (0-1)
Tue, May 12th	@ ATH	Jeffrey Springs (4-13)	#164	vs STL	Andre Pallante (12-6)	#100
Wed, May 13th	@ ATH	J.T. Ginn (9-8)		vs STL	Matthew Liberatore (5-14)	#85
Thu, May 14th	@ ATH	Jacob Lopez (6-4)	#135	vs STL	Michael McGreevy (7-9)	#87
Fri, May 15th	vs KC	Michael Wacha (9-8)	#71	vs SF	Tyler Mahle (6-10)	#63
Sat, May 16th	vs KC	Noah Cameron (9-8)	#72	vs SF	Trevor McDonald (3-7)
Sun, May 17th	vs KC	Stephen Kolek (4-3)		vs SF	Adrian Houser (4-7)
Mon, May 18th				@ LAA	Walbert Urena (9-10)	#147
Tue, May 19th	vs PIT	Mitch Keller (6-8)		@ LAA	Reid Detmers (6-8)	#20
Wed, May 20th	vs PIT	Carmen Mlodzinski (7-6)	#88	@ LAA	Jack Kochanowicz (2-5)
Thu, May 21st	vs PIT	Braxton Ashcraft (14-6)		@ LAA	Jose Soriano (12-7)	#37
Fri, May 22nd				@ SD	Walker Buehler (8-6)	#153
Sat, May 23rd	@ CIN	Chase Petty (1-2)	#367	@ SD	Lucas Giolito (2-3)
Sun, May 24th				@ SD	Michael King (11-9)	#55
Mon, May 25th	@ MIL	Jacob Misiorowski (14-5)	#8	vs SEA	Luis Castillo (4-11)	#114
Tue, May 26th	@ MIL	Kyle Harrison (10-4)	#108	vs SEA	Emerson Hancock (7-8)	#208
Wed, May 27th	@ MIL	Chad Patrick (9-4)	#175	vs SEA	Logan Gilbert (12-9)	#6
Fri, May 29th	vs CHC	Shota Imanaga (10-10)	#29	vs NYY	Carlos Rodon (6-3)	#50
Sat, May 30th	vs CHC	Ben Brown (4-2)		vs NYY	Ryan Weathers (5-8)	#144
Sun, May 31st	vs CHC	Jordan Wicks (0-2)	#262	vs NYY	Will Warren (10-6)	#61
Tue, Jun 2nd	vs TEX	Nathan Eovaldi (10-9)	#122	@ CHC	Jameson Taillon (2-6)
Wed, Jun 3rd	vs TEX	MacKenzie Gore (8-11)	#48	@ CHC	Colin Rea (8-8)	#224
Thu, Jun 4th				@ CHC	Shota Imanaga (10-10)	#29
Fri, Jun 5th	vs CIN	Brady Singer (6-14)	#163	@ HOU	Peter Lambert (8-9)	#181
Sat, Jun 6th	vs CIN	Nick Lodolo (3-5)	#120	@ HOU	Tatsuya Imai (6-4)	#186
Sun, Jun 7th	vs CIN	Rhett Lowder (6-10)	#151	@ HOU	Mike Burrows (4-9)	#259
Mon, Jun 8th				vs MIL	Kyle Harrison (10-4)	#108
Tue, Jun 9th	@ NYM	Freddy Peralta (9-11)	#44	vs MIL	Robert Gasser (4-5)	#83
Wed, Jun 10th	@ NYM	Austin Warren		vs MIL	Brandon Sproat (3-7)	#170
Fri, Jun 12th	@ MIN	Joe Ryan (6-10)	#25	vs COL	Sean Sullivan (0-3)
Sat, Jun 13th	@ MIN	Connor Prielipp (5-7)	#115	vs COL	Kyle Freeland (4-10)	#392
Sun, Jun 14th	@ MIN	Taj Bradley (11-6)	#40	vs COL	Tomoyuki Sugano (12-10)	#393
Mon, Jun 15th	vs SD	Wandy Peralta (3-2)	#294	vs PIT	Jared Jones (4-6)	#42
Tue, Jun 16th	vs SD	Michael King (11-9)	#55	vs PIT	Mitch Keller (6-8)
Wed, Jun 17th	vs SD	Bradgley Rodriguez (3-3)	#138	vs PIT	Braxton Ashcraft (14-6)
Thu, Jun 18th	@ KC	Noah Cameron (9-8)	#72	vs LAA	Ryan Johnson (4-8)	#150
Fri, Jun 19th	@ KC	Seth Lugo (7-8)	#118	vs LAA	Jose Soriano (12-7)	#37
Sat, Jun 20th				vs LAA	Walbert Urena (9-10)	#147
Sun, Jun 21st	@ KC	Stephen Kolek (4-3)		vs LAA	Reid Detmers (6-8)	#20
Tue, Jun 23rd	vs ARI	Eduardo Rodriguez (15-6)	#105	@ SF	Robbie Ray (12-8)	#106
Wed, Jun 24th	vs ARI	Mitch Bratt (1-3)		@ SF	Tyler Mahle (6-10)	#63
Thu, Jun 25th				@ SF	Landen Roupp (9-14)	#99
Fri, Jun 26th	vs MIA	Max Meyer (9-1)		@ LAA	Walbert Urena (9-10)	#147
Sat, Jun 27th	vs MIA	Ryan Gusto (1-5)	#255	@ LAA	Reid Detmers (6-8)	#20
Sun, Jun 28th	vs MIA	Tyler Phillips (5-6)	#334	@ LAA	Sam Aldegheri (3-4)	#328
Mon, Jun 29th				vs LAD	Eric Lauer (8-7)
Tue, Jun 30th	@ ATL	Martin Perez (8-9)	#137	vs LAD	Justin Wrobleski (11-5)	#182
Wed, Jul 1st	@ ATL	Reynaldo Lopez (4-5)	#69	vs LAD	Jack Dreyer (5-2)	#209
Fri, Jul 3rd	@ CHC	David Peterson (8-8)	#93	vs MIA	Tyler Phillips (5-6)	#334
Sat, Jul 4th	@ CHC	Shota Imanaga (10-10)	#29	vs MIA	Sandy Alcantara (13-10)	#97
Sun, Jul 5th	@ CHC	Javier Assad (6-1)	#319	vs MIA	Eury Perez (7-11)	#49
Tue, Jul 7th	vs MIL	Robert Gasser (4-5)	#83	@ DET	Tarik Skubal (10-7)	#1
Wed, Jul 8th	vs MIL	Kyle Harrison (10-4)	#108	@ DET	Troy Melton (8-4)	#57
Thu, Jul 9th	vs MIL	Logan Henderson (10-3)	#27	@ DET	Framber Valdez (10-10)	#36
Fri, Jul 10th	vs ATL	Chris Sale (14-9)	#5	@ CWS	Sean Burke (9-7)	#74
Sat, Jul 11th	vs ATL	Reynaldo Lopez (4-5)	#69	@ CWS	Bryan Hudson (4-4)	#125
Sun, Jul 12th	vs ATL	Danny Young		@ CWS	Noah Schultz (3-9)	#242
Fri, Jul 17th	@ ARI	Merrill Kelly (9-13)	#136	vs WSH	Cade Cavalli (12-5)	#54
Sat, Jul 18th	@ ARI	Brandon Pfaadt (7-3)	#92	vs WSH	Zack Littell (8-8)	#272
Sun, Jul 19th	@ ARI	Eduardo Rodriguez (15-6)	#105	vs WSH	Foster Griffin (15-5)	#52
Mon, Jul 20th	@ LAA	Jose Soriano (12-7)	#37	@ ARI	Mitch Bratt (1-3)
Tue, Jul 21st	@ LAA	Walbert Urena (9-10)	#147	@ ARI	Kohl Drake (0-1)	#320
Wed, Jul 22nd	@ LAA	Reid Detmers (6-8)	#20	@ ARI	Merrill Kelly (9-13)	#136
Fri, Jul 24th	vs CIN	Rhett Lowder (6-10)	#151	@ MIN	Zebby Matthews (9-10)	#89
Sat, Jul 25th	vs CIN	Hunter Greene (2-2)		@ MIN	Kendry Rojas (1-1)	#195
Sun, Jul 26th	vs CIN	Andrew Abbott (6-11)	#132	@ MIN	Connor Prielipp (5-7)	#115
Mon, Jul 27th	vs CHC	David Peterson (8-8)	#93	vs BOS	Payton Tolle (9-6)	#24
Tue, Jul 28th	vs CHC	Colin Rea (8-8)	#224	vs BOS	Jake Bennett (9-7)	#67
Wed, Jul 29th	vs CHC	Matthew Boyd (8-5)	#62	vs BOS	Patrick Sandoval (1-5)	#104
Thu, Jul 30th	vs CHC	Javier Assad (6-1)	#319	vs BOS	Sonny Gray (17-5)	#33
Fri, Jul 31st	@ TOR	Dylan Cease (11-5)	#4	vs DET	Tyler Holton (2-5)	#139
Sat, Aug 1st	@ TOR	Kevin Gausman (9-12)	#32	vs DET	Framber Valdez (10-10)	#36
Sun, Aug 2nd	@ TOR	Max Scherzer (2-8)	#116	vs DET	Keider Montero (9-8)	#127
Tue, Aug 4th	@ NYY	Ryan Weathers (5-8)	#144	@ CIN	Brady Singer (6-14)	#163
Wed, Aug 5th	@ NYY	Will Warren (10-6)	#61	@ CIN	Rhett Lowder (6-10)	#151
Thu, Aug 6th				@ CIN	Andrew Abbott (6-11)	#132
Fri, Aug 7th	vs COL	Ryan Feltner (5-10)	#395	@ BOS	Payton Tolle (9-6)	#24
Sat, Aug 8th	vs COL	Kyle Freeland (4-10)	#392	@ BOS	Jake Bennett (9-7)	#67
Sun, Aug 9th	vs COL	Michael Lorenzen (3-12)	#194	@ BOS	Erik Miller
Mon, Aug 10th	vs PHI	Andrew Painter (3-9)	#113	vs TB	Freddy Peralta (9-11)	#44
Tue, Aug 11th	vs PHI	Cristopher Sanchez (17-5)	#3	vs TB	Nick Martinez (14-4)	#80
Wed, Aug 12th	vs PHI	Zack Wheeler (12-5)	#7	vs TB	Drew Rasmussen (14-5)	#14
Fri, Aug 14th	@ CHC	Clay Holmes (6-7)	#64	vs TEX	Kumar Rocker (5-11)	#119
Sat, Aug 15th	@ CHC	Matthew Boyd (8-5)	#62	vs TEX	MacKenzie Gore (8-11)	#48
Sun, Aug 16th	@ CHC	Edward Cabrera (5-5)	#169	vs TEX	Cody Bradford (0-5)	#103
Mon, Aug 17th	@ CIN	Rhett Lowder (6-10)	#151	@ KC	Michael Wacha (9-8)	#71
Tue, Aug 18th	@ CIN	Andrew Abbott (6-11)	#132	@ KC	Daniel Lynch (5-5)	#329
Wed, Aug 19th	@ CIN	Chase Burns (15-3)	#34	@ KC	Seth Lugo (7-8)	#118
Thu, Aug 20th	@ CIN	Brady Singer (6-14)	#163	@ KC	Randy Dobnak (3-4)	#308
Fri, Aug 21st	@ PHI	Jesus Luzardo (14-5)	#17	@ HOU	Hayden Wesneski (5-2)	#78
Sat, Aug 22nd	@ PHI	Andrew Painter (3-9)	#113	@ HOU	Hunter Brown (5-3)	#23
Sun, Aug 23rd	@ PHI	Cristopher Sanchez (17-5)	#3	@ HOU	Cristian Javier (2-5)	#102
Mon, Aug 24th				vs MIN	Zebby Matthews (9-10)	#89
Tue, Aug 25th	vs BAL	Chris Bassitt (7-5)	#126	vs MIN	Taj Bradley (11-6)	#40
Wed, Aug 26th	vs BAL	Kyle Bradish (7-14)		vs MIN	Connor Prielipp (5-7)	#115
Fri, Aug 28th	vs PIT	Jared Jones (4-6)	#42	vs BAL	Brandon Young (9-4)	#117
Sat, Aug 29th	vs PIT	Lake Bachar (1-3)	#281	vs BAL	Shane Baz (6-15)	#86
Sun, Aug 30th	vs PIT	Braxton Ashcraft (14-6)		vs BAL	Chris Bassitt (7-5)	#126
Mon, Aug 31st				@ TEX	Jacob deGrom (10-9)	#10
Tue, Sep 1st	@ LAD	Eric Lauer (8-7)		@ TEX	MacKenzie Gore (8-11)	#48
Wed, Sep 2nd	@ LAD	Yoshinobu Yamamoto (13-8)	#2	@ TEX	Cody Bradford (0-5)	#103
Thu, Sep 3rd	@ LAD	Tarik Skubal (10-7)	#1	@ SEA	Kade Anderson (1-2)	#84
Fri, Sep 4th	@ COL	Ryan Feltner (5-10)	#395	@ SEA	Logan Gilbert (12-9)	#6
Sat, Sep 5th	@ COL	Mason Adams (0-0)	#389	@ SEA	George Kirby (9-11)	#22
Sun, Sep 6th	@ COL	Tanner Gordon (1-4)	#387	@ SEA	Bryan Woo (12-9)	#16
Mon, Sep 7th	@ SF	Logan Webb (8-9)	#26	vs TOR	Dylan Cease (11-5)	#4
Tue, Sep 8th	@ SF	Landen Roupp (9-14)	#99	vs TOR	Jose Soriano (12-7)	#37
Wed, Sep 9th	@ SF	Blade Tidwell (0-2)	#302	vs TOR	Braydon Fisher (3-4)	#231
Fri, Sep 11th	vs CWS	Anthony Kay (9-9)	#129	vs SEA	George Kirby (9-11)	#22
Sat, Sep 12th	vs CWS	Sean Newcomb (2-4)	#158	vs SEA	Bryan Woo (12-9)	#16
Sun, Sep 13th	vs CWS	David Sandlin (2-2)	#301	vs SEA	Bryce Miller (4-9)	#46
Tue, Sep 15th	vs SF	Blade Tidwell (0-2)	#302	@ TB	Griffin Jax (7-10)	#35
Wed, Sep 16th	vs SF	Anthony Molina (3-1)	#134	@ TB	Nick Martinez (14-4)	#80
Thu, Sep 17th				@ TB	Drew Rasmussen (14-5)	#14
Fri, Sep 18th	vs WSH	Andrew Alvarez (2-6)	#168	@ CLE	Joey Cantillo (9-9)	#65
Sat, Sep 19th	vs WSH	Jake Irvin (2-9)	#140	@ CLE	Tanner Bibee (6-15)	#75
Sun, Sep 20th	vs WSH	Jackson Kent (1-4)	#258	@ CLE	Gavin Williams (13-8)	#18
Tue, Sep 22nd	@ PIT	Khristian Curtis (1-0)	#257	vs LAA	Yusei Kikuchi (1-5)	#68
Wed, Sep 23rd	@ PIT	Khristian Curtis (1-0)	#257	vs LAA	Walbert Urena (9-10)	#147
Thu, Sep 24th	@ PIT	Paul Skenes (10-11)	#11	vs HOU	Peter Lambert (8-9)	#181
Fri, Sep 25th	@ MIL			vs HOU
Sat, Sep 26th	@ MIL			vs HOU
Sun, Sep 27th	@ MIL			vs HOU
Thu, Mar 26th	vs TB	Drew Rasmussen (14-5)	#14
Mon, Apr 6th	@ WSH	Zack Littell (8-8)	#272
Mon, Apr 27th	@ PIT	Mason Montgomery (6-3)	#90
Mon, May 4th	vs MIL	Chad Patrick (9-4)	#175
Mon, Jun 1st	vs TEX	Jacob deGrom (10-9)	#10
Thu, Jun 11th	@ NYM	Christian Scott (4-5)	#39
Mon, Jun 22nd	vs ARI	Merrill Kelly (9-13)	#136
Thu, Jul 2nd	@ ATL	Hurston Waldrep (0-1)
Mon, Jul 6th	vs MIL	Shane Drohan (7-5)	#82
Thu, Jul 23rd	vs ARI	Brandon Pfaadt (7-3)	#92
Mon, Aug 3rd	@ NYY	Cam Schlittler (14-6)	#13
Thu, Aug 27th	vs BAL	Trevor Rogers (10-10)	#56
Mon, Sep 14th	vs SF	Landen Roupp (9-14)	#99