Who Should I Trade?

Eiberson Castellano for Mark Leiter Jr. (2026)

Summary
Stats
Projections
News & Notes
Schedule

Who Should I Trade? Player Summaries
	Experts' Pick
	Mark Leiter Jr. RP - ATH	Eiberson Castellano RP - COL
Expert Recommendation	100% Recommended by 2 of 2 experts	0% Recommended by 0 of 2 experts
Rankings

Rest of Season	# 282	‐
VBR	‐	# 1088

Projections

Strikeouts	‐	13
Wins	‐	1
Saves	‐	0
ERA	‐	5.21
WHIP	‐	1.62

Misc

Injury Alert	IL60	MiLB

Expert Ranks

Kelly Kirby FantasyPros	# 249	‐

Kevin Spinelli KevScores	# 299	‐

Who Should I Trade? Player Statistics
	Mark Leiter Jr. RP - ATH	Eiberson Castellano RP - COL
2026 Stats


Games Played	36	1

Games Started	0	0

Innings Pitched	33.2	3.0

Wins	0	0

Losses	1	0

Saves	4	1

Blown Saves	2	0

Holds	5	0

Hits Allowed	32	4

Earned Runs	16	0

Home Runs Allowed	2	0

Strikeouts	38	2

Walks	11	0

ERA	4.28	0.00

WHIP	1.28	1.33

Who Should I Trade? Player Projections
	Mark Leiter Jr. RP - ATH	Eiberson Castellano RP - COL
2026 Projections


Games Played	‐	15

Games Started	‐	1

Innings Pitched	‐	16.2

Wins	‐	1

Losses	‐	1

Saves	‐	0

Blown Saves	‐	0

Holds	‐	0

Hits Allowed	‐	18

Earned Runs	‐	9

Home Runs Allowed	‐	2

Strikeouts	‐	13

Walks	‐	7

ERA	‐	5.21

WHIP	‐	1.62

Who Should I Trade? Player Notes
	Mark Leiter Jr. RP - ATH	Eiberson Castellano RP - COL
News
	The Athletics transferred Mark Leiter Jr. to the 60-day injured list. Ari Koslow Thu, Jul 30th	Eiberson Castellano has been optioned to Triple-A Albuquerque by the Colorado Rockies. The move was made as Victor Vodnik (elbow) was reinstated from the injured list. David Leisering Mon, Jun 15th
	Mark Leiter Jr. underwent successful surgery on Tuesday. Ari Koslow Tue, Jul 28th	The Rockies selected the contract of RHP Eiberson Castellano from Triple-A Albuquerque. Ari Koslow Sat, Jun 13th
	Athletics right-hander Mark Leiter Jr. (hip) is set to undergo surgery on Tuesday. Brenton Kemp Mon, Jul 27th	The Rockies have reassigned right-hander Eiberson Castellano to minor league camp. Brenton Kemp Mon, Mar 16th
	The Athletics placed Mark Leiter Jr. on the 15-day injured list with a right hip impingement. Ari Koslow Tue, Jul 21st
	The Athletics activated Mark Leiter Jr. from the injured list. Ari Koslow Fri, Jul 3rd
Notes
There are no recent notes for these players

Who Should I Trade? Player Schedules
Date	Opp	Opp Pitcher	VBR	Opp	Opp Pitcher	VBR
	Mark Leiter Jr. RP - ATH			Eiberson Castellano RP - COL
Fri, Mar 27th	@ TOR	Kevin Gausman (5-10)	#25	@ MIA	Sandy Alcantara (12-6)	#58
Sat, Mar 28th	@ TOR	Dylan Cease (7-5)	#8	@ MIA	Eury Perez (5-8)	#41
Sun, Mar 29th	@ TOR	Eric Lauer (6-5)	#309	@ MIA	Max Meyer (9-1)	#86
Mon, Mar 30th	@ ATL	Bryce Elder (7-6)	#139	@ TOR	Cody Ponce (0-0)
Tue, Mar 31st	@ ATL	Jose Suarez	#173	@ TOR	Max Scherzer (1-4)	#144
Wed, Apr 1st	@ ATL	Chris Sale (12-6)	#7	@ TOR	Kevin Gausman (5-10)	#25
Fri, Apr 3rd	vs HOU	Cristian Javier (1-2)	#174	vs PHI	Aaron Nola (3-9)	#55
Sat, Apr 4th	vs HOU	Tatsuya Imai (6-4)	#143	vs PHI	Jesus Luzardo (10-5)	#10
Sun, Apr 5th	vs HOU	Lance McCullers Jr. (2-3)	#274	vs PHI	Taijuan Walker (1-4)
Mon, Apr 6th				vs HOU	Cody Bolton (0-1)	#299
Tue, Apr 7th	@ NYY	Cam Schlittler (10-6)	#15	vs HOU	Mike Burrows (4-9)	#222
Wed, Apr 8th	@ NYY	Will Warren (8-5)	#64	vs HOU	Cristian Javier (1-2)	#174
Thu, Apr 9th	@ NYY	Ryan Weathers (5-7)	#66	@ SD	Randy Vasquez (7-6)	#378
Fri, Apr 10th	@ NYM	Clay Holmes (4-4)	#91	@ SD	Walker Buehler (6-5)	#248
Sat, Apr 11th	@ NYM	Kodai Senga (0-8)	#133	@ SD	German Marquez (4-2)	#390
Sun, Apr 12th	@ NYM	Freddy Peralta (5-9)	#50	@ SD	Nick Pivetta (1-2)	#76
Tue, Apr 14th	vs TEX	MacKenzie Gore (6-9)	#36	@ HOU	Colton Gordon (0-0)	#243
Wed, Apr 15th	vs TEX	Kumar Rocker (4-8)	#82	@ HOU	Spencer Arrighetti (7-5)	#276
Thu, Apr 16th	vs TEX	Jack Leiter (3-7)	#125	@ HOU	Ryan Weiss (0-3)	#370
Fri, Apr 17th	vs CWS	Davis Martin (9-6)	#80	vs LAD	Tyler Glasnow (3-0)	#59
Sat, Apr 18th	vs CWS	Erick Fedde (6-6)	#367	vs LAD	Emmet Sheehan (4-8)	#77
Sun, Apr 19th	vs CWS	Noah Schultz (3-8)	#190	vs LAD	Roki Sasaki (5-5)	#92
Mon, Apr 20th	@ SEA	Emerson Hancock (6-6)	#75	vs LAD	Justin Wrobleski (11-3)	#94
Tue, Apr 21st	@ SEA	Luis Castillo (3-9)	#62	vs SD	Randy Vasquez (7-6)	#378
Wed, Apr 22nd	@ SEA	Logan Gilbert (8-6)	#9	vs SD	Walker Buehler (6-5)	#248
Thu, Apr 23rd				vs SD	Matt Waldron (1-2)	#348
Fri, Apr 24th	@ TEX	Nathan Eovaldi (10-9)	#20	@ NYM	Freddy Peralta (5-9)	#50
Sun, Apr 26th	@ TEX	Kumar Rocker (4-8)	#82	@ NYM	Kodai Senga (0-8)	#133
Tue, Apr 28th	vs KC	Kris Bubic (3-2)	#154	@ CIN	Chase Burns (13-1)	#26
Wed, Apr 29th	vs KC	Michael Wacha (5-8)	#72	@ CIN	Brandon Williamson (2-3)	#328
Thu, Apr 30th	vs KC	Noah Cameron (5-8)	#78	@ CIN	Andrew Abbott (5-7)	#110
Fri, May 1st	vs CLE	Joey Cantillo (8-7)	#85	vs ATL	Grant Holmes (7-4)	#182
Sat, May 2nd	vs CLE	Slade Cecconi (4-7)	#134	vs ATL	Chris Sale (12-6)	#7
Sun, May 3rd	vs CLE	Parker Messick (8-6)	#42	vs ATL	Spencer Strider (4-2)	#333
Mon, May 4th				vs NYM	Huascar Brazoban (5-2)	#181
Wed, May 6th	@ PHI	Zack Wheeler (10-2)	#6	vs NYM	Freddy Peralta (5-9)	#50
Thu, May 7th	@ PHI	Andrew Painter (1-8)	#207	vs NYM	Christian Scott (3-3)	#45
Fri, May 8th	@ BAL	Kyle Bradish (7-10)	#44	@ PHI	Jesus Luzardo (10-5)	#10
Sat, May 9th	@ BAL	Shane Baz (4-10)	#63	@ PHI	Aaron Nola (3-9)	#55
Sun, May 10th	@ BAL	Keegan Akin (0-1)		@ PHI	Cristopher Sanchez (14-4)	#4
Tue, May 12th	vs STL	Andre Pallante (11-6)	#111	@ PIT	Paul Skenes (9-9)	#3
Wed, May 13th	vs STL	Matthew Liberatore (5-8)	#115	@ PIT	Mitch Keller (6-8)	#123
Thu, May 14th	vs STL	Michael McGreevy (4-9)	#98	@ PIT	Mason Montgomery (4-3)	#105
Fri, May 15th	vs SF	Tyler Mahle (3-9)	#99	vs ARI	Merrill Kelly (8-9)	#126
Sat, May 16th	vs SF	Trevor McDonald (3-7)		vs ARI	Eduardo Rodriguez (10-4)	#129
Sun, May 17th	vs SF	Adrian Houser (2-7)	#187	vs ARI	Michael Soroka (8-3)	#69
Mon, May 18th	@ LAA	Walbert Urena (7-7)	#263	vs TEX	MacKenzie Gore (6-9)	#36
Tue, May 19th	@ LAA	Reid Detmers (3-7)	#35	vs TEX	Tyler Alexander (1-2)	#172
Wed, May 20th	@ LAA	Jack Kochanowicz (2-5)		vs TEX	Jack Leiter (3-7)	#125
Thu, May 21st	@ LAA	Jose Soriano (9-6)	#46	@ ARI	Eduardo Rodriguez (10-4)	#129
Fri, May 22nd	@ SD	Walker Buehler (6-5)	#248	@ ARI	Michael Soroka (8-3)	#69
Sat, May 23rd	@ SD	Lucas Giolito (2-3)	#300	@ ARI	Zac Gallen (3-9)	#228
Sun, May 24th	@ SD	Michael King (6-8)	#57	@ ARI	Ryne Nelson (3-5)	#194
Mon, May 25th	vs SEA	Luis Castillo (3-9)	#62	@ LAD	Emmet Sheehan (4-8)	#77
Tue, May 26th	vs SEA	Emerson Hancock (6-6)	#75	@ LAD	Eric Lauer (6-5)	#309
Wed, May 27th	vs SEA	Logan Gilbert (8-6)	#9	@ LAD	Shohei Ohtani (8-2)	#1
Fri, May 29th	vs NYY	Carlos Rodon (4-2)	#102	vs SF	Logan Webb (7-7)	#16
Sat, May 30th	vs NYY	Ryan Weathers (5-7)	#66	vs SF	Adrian Houser (2-7)	#187
Sun, May 31st	vs NYY	Will Warren (8-5)	#64	vs SF	Robbie Ray (10-6)	#97
Mon, Jun 1st				@ LAA	Jose Soriano (9-6)	#46
Tue, Jun 2nd	@ CHC	Jameson Taillon (2-6)	#146	@ LAA	Grayson Rodriguez (3-4)	#127
Wed, Jun 3rd	@ CHC	Colin Rea (8-8)	#168	@ LAA	Walbert Urena (7-7)	#263
Fri, Jun 5th	@ HOU	Peter Lambert (8-5)	#116	vs MIL	Brandon Sproat (3-7)	#149
Sat, Jun 6th	@ HOU	Tatsuya Imai (6-4)	#143	vs MIL	Jacob Misiorowski (11-5)	#5
Sun, Jun 7th	@ HOU	Mike Burrows (4-9)	#222	vs MIL	Shane Drohan (6-4)	#71
Tue, Jun 9th	vs MIL	Robert Gasser (3-4)	#109	vs CHC	Colin Rea (8-8)	#168
Wed, Jun 10th	vs MIL	Brandon Sproat (3-7)	#149	vs CHC	Shota Imanaga (7-9)	#28
Thu, Jun 11th				vs CHC	Edward Cabrera (5-4)	#83
Fri, Jun 12th	vs COL	Sean Sullivan (0-3)	#427	@ ATH	Gage Jump (4-7)	#81
Sat, Jun 13th	vs COL	Kyle Freeland (3-10)	#318	@ ATH	Joey Estes (0-0)	#395
Sun, Jun 14th	vs COL	Tomoyuki Sugano (11-4)	#435	@ ATH	Jeffrey Springs (3-11)	#251
Mon, Jun 15th	vs PIT	Jared Jones (2-3)	#54	@ CHC	Shota Imanaga (7-9)	#28
Tue, Jun 16th	vs PIT	Mitch Keller (6-8)	#123	@ CHC	Edward Cabrera (5-4)	#83
Wed, Jun 17th	vs PIT	Braxton Ashcraft (11-4)	#31	@ CHC	Javier Assad (6-1)	#225
Fri, Jun 19th	vs LAA	Jose Soriano (9-6)	#46	vs PIT	Bubba Chandler (4-8)	#101
Sat, Jun 20th	vs LAA	Walbert Urena (7-7)	#263	vs PIT	Paul Skenes (9-9)	#3
Sun, Jun 21st	vs LAA	Reid Detmers (3-7)	#35	vs PIT	Jared Jones (2-3)	#54
Mon, Jun 22nd				vs BOS	Jake Bennett (7-4)	#88
Tue, Jun 23rd	@ SF	Robbie Ray (10-6)	#97	vs BOS	Sonny Gray (13-2)	#27
Wed, Jun 24th	@ SF	Tyler Mahle (3-9)	#99	vs BOS	Ranger Suarez (4-3)	#22
Fri, Jun 26th	@ LAA	Walbert Urena (7-7)	#263	@ MIN	Taj Bradley (9-4)	#48
Sat, Jun 27th	@ LAA	Reid Detmers (3-7)	#35	@ MIN	Mike Paredes (0-3)	#405
Sun, Jun 28th	@ LAA	Sam Aldegheri (3-4)	#424	@ MIN	Connor Prielipp (3-5)	#106
Mon, Jun 29th	vs LAD	Eric Lauer (6-5)	#309	vs MIA	Sandy Alcantara (12-6)	#58
Tue, Jun 30th	vs LAD	Justin Wrobleski (11-3)	#94	vs MIA	Eury Perez (5-8)	#41
Wed, Jul 1st	vs LAD	Jack Dreyer (4-1)	#147	vs MIA	Max Meyer (9-1)	#86
Thu, Jul 2nd				vs MIA	Ryan Gusto (0-3)	#226
Fri, Jul 3rd	vs MIA	Tyler Phillips (3-5)	#264	vs SF	Logan Webb (7-7)	#16
Sat, Jul 4th	vs MIA	Sandy Alcantara (12-6)	#58	vs SF	Robbie Ray (10-6)	#97
Sun, Jul 5th	vs MIA	Eury Perez (5-8)	#41	vs SF	Tyler Mahle (3-9)	#99
Mon, Jul 6th				@ LAD	Eric Lauer (6-5)	#309
Tue, Jul 7th	@ DET	Tarik Skubal (7-6)	#2	@ LAD	Justin Wrobleski (11-3)	#94
Wed, Jul 8th	@ DET	Troy Melton (7-1)	#60	@ LAD	Roki Sasaki (5-5)	#92
Thu, Jul 9th	@ DET	Framber Valdez (6-7)	#32	@ SF	Carson Whisenhunt (2-2)	#178
Fri, Jul 10th	@ CWS	Sean Burke (7-5)	#65	@ SF	Robbie Ray (10-6)	#97
Sat, Jul 11th	@ CWS	Bryan Hudson (3-4)	#150	@ SF	Tyler Mahle (3-9)	#99
Sun, Jul 12th	@ CWS	Noah Schultz (3-8)	#190	@ SF	Trevor McDonald (3-7)
Fri, Jul 17th	vs WSH	Cade Cavalli (8-5)	#52	vs CIN	Brady Singer (5-10)	#151
Sat, Jul 18th	vs WSH	Zack Littell (7-8)	#192	vs CIN	Rhett Lowder (3-7)	#279
Sun, Jul 19th	vs WSH	Foster Griffin (12-3)	#53	vs CIN	Hunter Greene (2-2)	#29
Mon, Jul 20th	@ ARI	Mitch Bratt (0-1)	#196	vs WSH	Andrew Alvarez (2-3)	#200
Tue, Jul 21st	@ ARI	Kohl Drake (0-0)	#261	vs WSH	Carson Palmquist (0-2)	#292
Wed, Jul 22nd	@ ARI	Merrill Kelly (8-9)	#126	vs WSH	Cade Cavalli (8-5)	#52
Fri, Jul 24th	@ MIN	Zebby Matthews (4-8)	#131	@ MIL	Shane Drohan (6-4)	#71
Sat, Jul 25th	@ MIN	Kendry Rojas (1-1)	#199	@ MIL	Robert Gasser (3-4)	#109
Sun, Jul 26th	@ MIN	Connor Prielipp (3-5)	#106	@ MIL	Jacob Misiorowski (11-5)	#5
Tue, Jul 28th	vs BOS	Jake Bennett (7-4)	#88	@ SD	Michael King (6-8)	#57
Wed, Jul 29th	vs BOS	Patrick Sandoval (1-0)	#121	@ SD	Kyle Hart (0-2)	#202
Fri, Jul 31st	vs DET	Tyler Holton (1-4)	#138	vs KC	Michael Wacha (5-8)	#72
Sat, Aug 1st	vs DET	Framber Valdez (6-7)	#32	vs KC	Luinder Avila (5-4)	#307
Sun, Aug 2nd	vs DET	Keider Montero (8-6)	#104	vs KC	Seth Lugo (4-7)	#122
Mon, Aug 3rd				vs TB	Ian Seymour (8-3)	#87
Tue, Aug 4th	@ CIN	Brady Singer (5-10)	#151	vs TB	Freddy Peralta (5-9)	#50
Wed, Aug 5th	@ CIN	Rhett Lowder (3-7)	#279	vs TB	Nick Martinez (10-3)	#100
Fri, Aug 7th	@ BOS	Payton Tolle (6-6)	#40	@ STL	Kyle Leahy (7-4)	#128
Sat, Aug 8th	@ BOS	Jake Bennett (7-4)	#88	@ STL	Matthew Liberatore (5-8)	#115
Sun, Aug 9th	@ BOS	Patrick Sandoval (1-0)	#121	@ STL	Michael McGreevy (4-9)	#98
Mon, Aug 10th	vs TB	Freddy Peralta (5-9)	#50	@ ARI	Mitch Bratt (0-1)	#196
Tue, Aug 11th	vs TB	Nick Martinez (10-3)	#100	@ ARI	Kohl Drake (0-0)	#261
Wed, Aug 12th	vs TB	Drew Rasmussen (10-5)	#17	@ ARI	Merrill Kelly (8-9)	#126
Fri, Aug 14th	vs TEX	Kumar Rocker (4-8)	#82	@ SF	Landen Roupp (7-10)	#61
Sat, Aug 15th	vs TEX			@ SF
Sun, Aug 16th	vs TEX			@ SF
Mon, Aug 17th	@ KC			vs LAD
Tue, Aug 18th	@ KC			vs LAD
Wed, Aug 19th	@ KC			vs LAD
Fri, Aug 21st	@ HOU			vs CLE
Sat, Aug 22nd	@ HOU			vs CLE
Sun, Aug 23rd	@ HOU			vs CLE
Mon, Aug 24th	vs MIN			@ WSH
Tue, Aug 25th	vs MIN			@ WSH
Wed, Aug 26th	vs MIN			@ WSH
Thu, Aug 27th				@ WSH
Fri, Aug 28th	vs BAL			@ ATL
Sat, Aug 29th	vs BAL			@ ATL
Sun, Aug 30th	vs BAL			@ ATL
Mon, Aug 31st	@ TEX			vs BAL
Tue, Sep 1st	@ TEX			vs BAL
Wed, Sep 2nd	@ TEX			vs BAL
Fri, Sep 4th	@ SEA			vs STL
Sat, Sep 5th	@ SEA			vs STL
Sun, Sep 6th	@ SEA			vs STL
Tue, Sep 8th	vs TOR			@ NYY
Wed, Sep 9th	vs TOR			@ NYY
Thu, Sep 10th				@ NYY
Fri, Sep 11th	vs SEA			@ DET
Sat, Sep 12th	vs SEA			@ DET
Sun, Sep 13th	vs SEA			@ DET
Mon, Sep 14th				vs SD
Tue, Sep 15th	@ TB			vs SD
Wed, Sep 16th	@ TB			vs SD
Thu, Sep 17th	@ TB			vs SD
Fri, Sep 18th	@ CLE			vs SEA
Sat, Sep 19th	@ CLE			vs SEA
Sun, Sep 20th	@ CLE			vs SEA
Tue, Sep 22nd	vs LAA			vs ARI
Wed, Sep 23rd	vs LAA			vs ARI
Thu, Sep 24th	vs HOU			vs ARI
Fri, Sep 25th	vs HOU			@ CWS
Sat, Sep 26th	vs HOU			@ CWS
Sun, Sep 27th	vs HOU			@ CWS
Mon, Apr 13th	vs TEX	Nathan Eovaldi (10-9)	#20
Sat, Apr 25th	@ TEX	MacKenzie Gore (6-9)	#36
Tue, May 5th	@ PHI	Cristopher Sanchez (14-4)	#4
Thu, Jun 4th	@ CHC	Shota Imanaga (7-9)	#28
Mon, Jun 8th	vs MIL	Kyle Harrison (8-2)	#43
Thu, Jun 18th	vs LAA	Ryan Johnson (2-6)	#245
Thu, Jun 25th	@ SF	Landen Roupp (7-10)	#61
Mon, Jul 27th	vs BOS	Payton Tolle (6-6)	#40
Thu, Jul 30th	vs BOS	Sonny Gray (13-2)	#27
Thu, Aug 6th	@ CIN	Hunter Greene (2-2)	#29
Thu, Aug 20th	@ KC
Thu, Sep 3rd	@ SEA
Mon, Sep 7th	vs TOR

Who Should I Trade?

Eiberson Castellano for Mark Leiter Jr. (2026)

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