Who Should I Trade?

Jonathan Loaisiga for William Kempner (2026)

Summary
Stats
Projections
News & Notes
Schedule

Who Should I Trade? Player Summaries
	Experts' Pick
	Jonathan Loaisiga RP - ARI	William Kempner RP - MIA
Expert Recommendation	100% Recommended by 2 of 2 experts	0% Recommended by 0 of 2 experts
Rankings

Rest of Season	# 319	‐
VBR	# 426	# 1016

Projections

Strikeouts	14	7
Wins	1	0
Saves	2	0
ERA	3.75	4.60
WHIP	1.35	1.58

Misc

Injury Alert	-	IL15

Expert Ranks

Kelly Kirby FantasyPros	# 274	# 393

Kevin Spinelli KevScores	# 347	‐

Who Should I Trade? Player Statistics
	Jonathan Loaisiga RP - ARI	William Kempner RP - MIA
2026 Stats


Games Played	47	9

Games Started	0	0

Innings Pitched	44.0	12.1

Wins	3	1

Losses	3	0

Saves	1	0

Blown Saves	4	0

Holds	8	0

Hits Allowed	37	8

Earned Runs	13	4

Home Runs Allowed	2	1

Strikeouts	32	14

Walks	10	4

ERA	2.66	2.92

WHIP	1.07	0.97

Who Should I Trade? Player Projections
	Jonathan Loaisiga RP - ARI	William Kempner RP - MIA
2026 Projections


Games Played	21	9

Games Started	0	0

Innings Pitched	17.7	6.0

Wins	1	0

Losses	1	0

Saves	2	0

Blown Saves	0	0

Holds	3	0

Hits Allowed	17	5

Earned Runs	7	3

Home Runs Allowed	2	1

Strikeouts	14	7

Walks	6	3

ERA	3.75	4.60

WHIP	1.35	1.58

Who Should I Trade? Player Notes
	Jonathan Loaisiga RP - ARI	William Kempner RP - MIA
News
	Jonathan Loaisiga pitched around a single and a double in the ninth inning to earn his first save of the season as the Diamondbacks defeated the Tigers, 1-0, on Wednesday. David Leisering Thu, Apr 2nd	William Kempner remains shut down from throwing. Ari Koslow Fri, Jul 17th
	The Diamondbacks selected the contract of RHP Jonathan Loaisiga. Ari Koslow Wed, Mar 25th	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
	D-backs reliever Jonathan Loaisiga has made the Opening Day roster. Brenton Kemp Sun, Mar 22nd	The Marlins recalled William Kempner from Triple-A Jacksonville. Ari Koslow Fri, Jul 3rd
	The Diamondbacks signed RHP Jonathan Loáisiga to a minor league contract. Ari Koslow Wed, Jan 14th	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

Who Should I Trade? Player Schedules
Date	Opp	Opp Pitcher	VBR	Opp	Opp Pitcher	VBR
	Jonathan Loaisiga RP - ARI			William Kempner RP - MIA
Thu, Mar 26th	@ LAD	Yoshinobu Yamamoto (11-7)	#13
Fri, Mar 27th	@ LAD	Emmet Sheehan (4-8)	#77	vs COL	Kyle Freeland (3-10)	#320
Sat, Mar 28th	@ LAD	Tyler Glasnow (3-0)	#60	vs COL	Michael Lorenzen (3-10)	#432
Mon, Mar 30th	vs DET	Justin Verlander (0-1)	#229	vs CWS	Davis Martin (9-5)	#82
Tue, Mar 31st	vs DET	Casey Mize (4-6)	#37	vs CWS	Erick Fedde (6-6)	#393
Wed, Apr 1st	vs DET	Tarik Skubal (7-5)	#2	vs CWS	Shane Smith (0-2)	#218
Thu, Apr 2nd	vs ATL	Reynaldo Lopez (4-3)	#112
Fri, Apr 3rd	vs ATL	Grant Holmes (6-4)	#180	@ NYY	Will Warren (8-5)	#65
Sat, Apr 4th	vs ATL	Bryce Elder (7-6)	#139	@ NYY	Ryan Weathers (4-7)	#64
Sun, Apr 5th	vs ATL	Martin Perez (7-6)	#204	@ NYY	Max Fried (4-3)	#14
Tue, Apr 7th	@ NYM	Freddy Peralta (5-9)	#50	vs CIN	Andrew Abbott (5-7)	#109
Wed, Apr 8th	@ NYM	David Peterson (6-7)	#88	vs CIN	Brady Singer (5-10)	#152
Thu, Apr 9th	@ NYM	Nolan McLean (7-7)	#34	vs CIN	Rhett Lowder (3-7)	#280
Fri, Apr 10th	@ PHI	Jesus Luzardo (9-5)	#10	@ DET	Keider Montero (8-6)	#103
Sat, Apr 11th	@ PHI	Taijuan Walker (1-4)		@ DET	Casey Mize (4-6)	#37
Sun, Apr 12th	@ PHI	Zach Pop		@ DET	Tarik Skubal (7-5)	#2
Mon, Apr 13th	@ BAL	Dean Kremer (1-4)	#114	@ ATL	Grant Holmes (6-4)	#180
Tue, Apr 14th	@ BAL	Trevor Rogers (6-7)	#70	@ ATL	Reynaldo Lopez (4-3)	#112
Wed, Apr 15th	@ BAL	Kyle Bradish (7-10)	#43	@ ATL	Bryce Elder (7-6)	#139
Fri, Apr 17th	vs TOR	Braydon Fisher (3-3)	#178	vs MIL	Coleman Crow (0-1)	#228
Sat, Apr 18th	vs TOR	Max Scherzer (1-4)	#144	vs MIL	Brandon Woodruff (2-2)
Sun, Apr 19th	vs TOR	Kevin Gausman (5-10)	#25	vs MIL	Jacob Misiorowski (11-5)	#5
Tue, Apr 21st	vs CWS	Sean Burke (7-5)	#66	vs STL	Dustin May (5-7)	#56
Wed, Apr 22nd	vs CWS	Anthony Kay (8-5)	#179	vs STL	Kyle Leahy (7-4)	#123
Thu, Apr 23rd	vs CWS	Davis Martin (9-5)	#82
Sat, Apr 25th	vs SD	German Marquez (4-2)	#381	@ SF	Robbie Ray (10-6)	#97
Sun, Apr 26th	vs SD	Michael King (6-8)	#57	@ SF	Landen Roupp (7-10)	#62
Tue, Apr 28th	@ MIL	Chad Patrick (6-4)	#120	@ LAD	Shohei Ohtani (8-2)	#1
Wed, Apr 29th	@ MIL	Brandon Sproat (3-7)	#151	@ LAD	Tyler Glasnow (3-0)	#60
Thu, Apr 30th	@ MIL	Brandon Woodruff (2-2)
Fri, May 1st	@ CHC	Colin Rea (8-8)	#169	vs PHI	Zack Wheeler (10-2)	#6
Sat, May 2nd	@ CHC	Shota Imanaga (7-9)	#28	vs PHI	Andrew Painter (1-8)	#213
Sun, May 3rd	@ CHC	Matthew Boyd (7-1)	#38	vs PHI	Jesus Luzardo (9-5)	#10
Tue, May 5th	vs PIT	Bubba Chandler (4-8)	#102	vs BAL	Chris Bassitt (4-4)	#135
Wed, May 6th	vs PIT	Paul Skenes (9-9)	#3	vs BAL	Brandon Young (8-2)	#132
Thu, May 7th	vs PIT	Mitch Keller (6-8)	#124	vs BAL	Cade Povich (1-1)	#215
Fri, May 8th	vs NYM	Nolan McLean (7-7)	#34	vs WSH	Foster Griffin (12-3)	#53
Sat, May 9th	vs NYM	Clay Holmes (4-4)	#89	vs WSH	Richard Lovelady (2-4)	#405
Sun, May 10th	vs NYM	Huascar Brazoban (5-2)	#182	vs WSH	Cade Cavalli (8-5)	#54
Mon, May 11th	@ TEX	Jakob Junis
Tue, May 12th	@ TEX	MacKenzie Gore (6-9)	#36	@ MIN	Bailey Ober (7-3)	#84
Wed, May 13th	@ TEX	Kumar Rocker (4-8)	#81	@ MIN	Simeon Woods Richardson (1-7)
Fri, May 15th	@ COL	Kyle Freeland (3-10)	#320	@ TB	Ian Seymour (8-3)	#93
Sat, May 16th	@ COL	Tomoyuki Sugano (11-4)	#434	@ TB	Nick Martinez (10-3)	#99
Sun, May 17th	@ COL	Michael Lorenzen (3-10)	#432	@ TB	Drew Rasmussen (10-5)	#17
Mon, May 18th	vs SF	Robbie Ray (10-6)	#97	vs ATL	JR Ritchie (1-2)	#288
Tue, May 19th	vs SF	Landen Roupp (7-10)	#62	vs ATL	Martin Perez (7-6)	#204
Wed, May 20th	vs SF	Tyler Mahle (3-9)	#100	vs ATL	Chris Sale (12-6)	#7
Thu, May 21st	vs COL	Zach Agnos		vs ATL	Spencer Strider (4-2)	#317
Fri, May 22nd	vs COL	Tomoyuki Sugano (11-4)	#434	vs NYM	Tobias Myers (0-2)	#206
Sat, May 23rd	vs COL	Michael Lorenzen (3-10)	#432	vs NYM	Freddy Peralta (5-9)	#50
Sun, May 24th	vs COL	Jose Quintana (2-3)	#428	vs NYM	Christian Scott (3-3)	#45
Mon, May 25th	@ SF	Landen Roupp (7-10)	#62	@ TOR	Trey Yesavage (5-5)	#73
Tue, May 26th	@ SF	Tyler Mahle (3-9)	#100	@ TOR	Braydon Fisher (3-3)	#178
Wed, May 27th	@ SF	Trevor McDonald (3-7)		@ TOR	Kevin Gausman (5-10)	#25
Fri, May 29th	@ SEA	George Kirby (8-9)	#19	@ NYM	Freddy Peralta (5-9)	#50
Sat, May 30th	@ SEA	Bryan Woo (7-8)	#12	@ NYM	Christian Scott (3-3)	#45
Sun, May 31st	@ SEA	Bryce Miller (4-5)	#33	@ NYM	Nolan McLean (7-7)	#34
Mon, Jun 1st	vs LAD	Emmet Sheehan (4-8)	#77	@ WSH	Cade Cavalli (8-5)	#54
Tue, Jun 2nd	vs LAD	Eric Lauer (6-5)	#312	@ WSH	Richard Lovelady (2-4)	#405
Wed, Jun 3rd	vs LAD	Shohei Ohtani (8-2)	#1	@ WSH	Andrew Alvarez (2-3)	#201
Thu, Jun 4th	vs LAD	Justin Wrobleski (11-3)	#92
Fri, Jun 5th	vs WSH	Foster Griffin (12-3)	#53	vs TB	Drew Rasmussen (10-5)	#17
Sat, Jun 6th	vs WSH	Zack Littell (7-8)	#191	vs TB	Shane McClanahan (9-6)	#68
Sun, Jun 7th	vs WSH	Cade Cavalli (8-5)	#54	vs TB	Griffin Jax (6-9)	#48
Tue, Jun 9th	@ MIA	Max Meyer (9-1)	#86	vs ARI	Zac Gallen (3-9)	#232
Wed, Jun 10th	@ MIA	Ryan Gusto (0-2)	#224	vs ARI	Ryne Nelson (3-5)	#198
Thu, Jun 11th	@ MIA	Tyler Phillips (3-5)	#263	vs ARI	Merrill Kelly (8-9)	#130
Fri, Jun 12th	@ CIN	Nick Lodolo (3-2)	#115	@ PIT	Braxton Ashcraft (11-4)	#31
Sat, Jun 13th	@ CIN	Rhett Lowder (3-7)	#280	@ PIT	Bubba Chandler (4-8)	#102
Sun, Jun 14th	@ CIN	Andrew Abbott (5-7)	#109	@ PIT	Paul Skenes (9-9)	#3
Mon, Jun 15th	vs LAA	Walbert Urena (7-7)	#261	@ PHI	Zack Wheeler (10-2)	#6
Tue, Jun 16th	vs LAA	Reid Detmers (3-7)	#35	@ PHI	Jesus Luzardo (9-5)	#10
Wed, Jun 17th	vs LAA	Sam Aldegheri (3-4)	#423	@ PHI	Andrew Painter (1-8)	#213
Fri, Jun 19th	vs MIN	Connor Prielipp (3-5)	#106	vs SF	Landen Roupp (7-10)	#62
Sat, Jun 20th	vs MIN	Taj Bradley (9-4)	#49	vs SF	Trevor McDonald (3-7)
Sun, Jun 21st	vs MIN	Mike Paredes (0-3)	#404	vs SF	Logan Webb (7-7)	#16
Mon, Jun 22nd	@ STL	Andre Pallante (11-6)	#111	vs TEX	Tyler Alexander (1-2)	#175
Tue, Jun 23rd	@ STL	Kyle Leahy (7-4)	#123	vs TEX	Cal Quantrill (4-4)	#272
Wed, Jun 24th	@ STL	Matthew Liberatore (5-8)	#118	vs TEX	Jacob deGrom (7-7)	#11
Fri, Jun 26th	@ TB	Nick Martinez (10-3)	#99	@ STL	Michael McGreevy (4-9)	#98
Sat, Jun 27th	@ TB	Cole Sulser		@ STL	Andre Pallante (11-6)	#111
Sun, Jun 28th	@ TB	Drew Rasmussen (10-5)	#17	@ STL	Kyle Leahy (7-4)	#123
Mon, Jun 29th	vs SF	Tyler Mahle (3-9)	#100	@ COL	Sean Sullivan (0-3)	#424
Tue, Jun 30th	vs SF	Landen Roupp (7-10)	#62	@ COL	Tanner Gordon (0-2)	#421
Wed, Jul 1st	vs SF	Trevor McDonald (3-7)		@ COL	Kyle Freeland (3-10)	#320
Fri, Jul 3rd	vs MIL	Kyle Harrison (8-2)	#44	@ ATH	Jack Perkins (2-7)	#94
Sat, Jul 4th	vs MIL	Brandon Woodruff (2-2)		@ ATH	Aaron Civale (5-7)	#186
Sun, Jul 5th	vs MIL	Brandon Sproat (3-7)	#151	@ ATH	Gage Jump (4-7)	#83
Mon, Jul 6th	@ SD	Walker Buehler (6-5)	#243
Tue, Jul 7th	@ SD	German Marquez (4-2)	#381	vs SEA	Bryan Woo (7-8)	#12
Wed, Jul 8th	@ SD	Michael King (6-8)	#57	vs SEA	George Kirby (8-9)	#19
Thu, Jul 9th	@ SD	Griffin Canning (3-9)	#167	vs SEA	Bryce Miller (4-5)	#33
Fri, Jul 10th	@ LAD	Kyle Hurt		vs CLE	Parker Messick (8-6)	#42
Sat, Jul 11th	@ LAD	Yoshinobu Yamamoto (11-7)	#13	vs CLE	Tanner Bibee (4-11)	#51
Sun, Jul 12th	@ LAD	Emmet Sheehan (4-8)	#77	vs CLE	Joey Cantillo (8-6)	#85
Fri, Jul 17th	vs STL	Michael McGreevy (4-9)	#98	@ MIL	Logan Henderson (5-1)	#39
Sat, Jul 18th	vs STL	Dustin May (5-7)	#56	@ MIL	Shane Drohan (6-4)	#71
Sun, Jul 19th	vs STL	Andre Pallante (11-6)	#111	@ MIL	Robert Gasser (3-4)	#110
Mon, Jul 20th	vs ATH	Jeffrey Springs (3-11)	#241	@ HOU	Ronel Blanco (0-1)	#128
Tue, Jul 21st	vs ATH	Jack Perkins (2-7)	#94	@ HOU	Tatsuya Imai (6-4)	#142
Wed, Jul 22nd	vs ATH	Gage Jump (4-7)	#83	@ HOU	Peter Lambert (8-5)	#116
Thu, Jul 23rd	@ STL	Michael McGreevy (4-9)	#98
Fri, Jul 24th	@ WSH	Carson Palmquist (0-1)	#274	vs SD	German Marquez (4-2)	#381
Sat, Jul 25th	@ WSH	Foster Griffin (12-3)	#53	vs SD	Randy Vasquez (6-6)	#321
Sun, Jul 26th	@ WSH	Miles Mikolas (3-8)	#277	vs SD	Walker Buehler (6-5)	#243
Mon, Jul 27th	@ PIT	Mitch Keller (6-8)	#124	vs PHI	Zack Wheeler (10-2)	#6
Tue, Jul 28th	@ PIT	Bubba Chandler (4-8)	#102	vs PHI	Aaron Nola (3-9)	#55
Wed, Jul 29th	@ PIT	Jared Jones (2-2)	#52	vs PHI	Jesus Luzardo (9-5)	#10
Fri, Jul 31st	@ CLE	Tanner Bibee (4-11)	#51	@ NYM	Kodai Senga (0-8)	#133
Sat, Aug 1st	@ CLE	Parker Messick (8-6)	#42	@ NYM	Zac Thornton (2-2)	#158
Sun, Aug 2nd	@ CLE	Gavin Williams (11-6)	#24	@ NYM	Robert Stock (0-1)	#296
Mon, Aug 3rd	vs SD	Michael King (6-8)	#57
Tue, Aug 4th	vs SD	Randy Vasquez (6-6)	#321	@ ATL	Grant Holmes (6-4)	#180
Wed, Aug 5th	vs SD	JP Sears (3-4)	#170	@ ATL	Bryce Elder (7-6)	#139
Thu, Aug 6th	vs SD	Walker Buehler (6-5)	#243	@ ATL	Martin Perez (7-6)	#204
Fri, Aug 7th	vs LAD	Roki Sasaki (5-5)	#96	vs LAA	Jose Soriano (9-6)	#46
Sat, Aug 8th	vs LAD	Yoshinobu Yamamoto (11-7)	#13	vs LAA	Walbert Urena (7-7)	#261
Sun, Aug 9th	vs LAD			vs LAA	Grayson Rodriguez (3-3)	#129
Mon, Aug 10th	vs COL	Gabriel Hughes (0-3)	#240
Tue, Aug 11th	vs COL	Tomoyuki Sugano (11-4)	#434	vs PIT	Paul Skenes (9-9)	#3
Wed, Aug 12th	vs COL	Ryan Feltner (4-5)	#431	vs PIT	Braxton Ashcraft (11-4)	#31
Fri, Aug 14th	@ ATL			@ CIN
Sat, Aug 15th	@ ATL			@ CIN
Sun, Aug 16th	@ ATL			@ CIN
Mon, Aug 17th	@ BOS			@ PHI
Tue, Aug 18th	@ BOS			@ PHI
Wed, Aug 19th	@ BOS			@ PHI
Fri, Aug 21st	vs CIN			vs WSH
Sat, Aug 22nd	vs CIN			vs WSH
Sun, Aug 23rd	vs CIN			vs WSH
Mon, Aug 24th	vs CHC			vs BOS
Tue, Aug 25th	vs CHC			vs BOS
Wed, Aug 26th	vs CHC			vs BOS
Thu, Aug 27th	@ SF
Fri, Aug 28th	@ SF			@ WSH
Sat, Aug 29th	@ SF			@ WSH
Mon, Aug 31st	vs PHI			@ WSH
Tue, Sep 1st	vs PHI			@ KC
Wed, Sep 2nd	vs PHI			@ KC
Fri, Sep 4th	@ HOU			vs CHC
Sat, Sep 5th	@ HOU			vs CHC
Sun, Sep 6th	@ HOU			vs CHC
Mon, Sep 7th	@ KC			vs NYM
Tue, Sep 8th	@ KC			vs NYM
Wed, Sep 9th	@ KC			vs NYM
Fri, Sep 11th	vs TEX			vs LAD
Sat, Sep 12th	vs TEX			vs LAD
Sun, Sep 13th	vs TEX			vs LAD
Mon, Sep 14th	vs MIA			@ ARI
Tue, Sep 15th	vs MIA			@ ARI
Wed, Sep 16th	vs MIA			@ ARI
Fri, Sep 18th	vs NYY			@ SD
Sat, Sep 19th	vs NYY			@ SD
Sun, Sep 20th	vs NYY			@ SD
Tue, Sep 22nd	@ COL			@ CHC
Wed, Sep 23rd	@ COL			@ CHC
Thu, Sep 24th	@ COL			@ CHC
Fri, Sep 25th	@ SD			vs ATL
Sat, Sep 26th	@ SD			vs ATL
Sun, Sep 27th	@ SD			vs ATL
Sun, Mar 29th				vs COL	Jose Quintana (2-3)	#428
Mon, Apr 6th				vs CIN	Brandon Williamson (2-3)	#327
Mon, Apr 20th				vs STL	Michael McGreevy (4-9)	#98
Fri, Apr 24th				@ SF	Adrian Houser (2-7)	#189
Mon, Apr 27th				@ LAD	Yoshinobu Yamamoto (11-7)	#13
Mon, May 4th				vs PHI	Aaron Nola (3-9)	#55
Thu, May 14th				@ MIN	Zebby Matthews (4-8)	#131
Thu, Jul 2nd				@ COL	Michael Lorenzen (3-10)	#432
Thu, Jul 30th				@ NYM	Nolan McLean (7-7)	#34
Thu, Aug 13th				vs PIT	Carmen Mlodzinski (6-3)	#113
Sun, Aug 30th				@ WSH
Thu, Sep 3rd				@ KC

Who Should I Trade?

Jonathan Loaisiga for William Kempner (2026)

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