Isaac Mattson or Jonathan Loaisiga

Baseball Stats Comparison

Stats
Projections
News & Notes
Schedule

Isaac Mattson or Jonathan Loaisiga Player Statistics
	Isaac Mattson RP - PIT	Jonathan Loaisiga RP - ARI
2026 Stats


Games Played	38	64

Games Started	0	0

Innings Pitched	38.2	62.0

Wins	0	7

Losses	0	3

Saves	0	1

Blown Saves	2	4

Holds	8	10

Hits Allowed	44	53

Earned Runs	23	16

Home Runs Allowed	3	3

Strikeouts	36	47

Walks	18	11

ERA	5.35	2.32

WHIP	1.60	1.03

Isaac Mattson or Jonathan Loaisiga Player Projections
	Isaac Mattson RP - PIT	Jonathan Loaisiga RP - ARI
2026 Projections


Games Played	57	49

Games Started	0	0

Innings Pitched	60.8	49.6

Wins	3	2

Losses	3	2

Saves	2	2

Blown Saves	1	1

Holds	14	10

Hits Allowed	55	49

Earned Runs	30	24

Home Runs Allowed	7	5

Strikeouts	59	41

Walks	28	16

ERA	4.44	4.31

WHIP	1.35	1.32

Isaac Mattson or Jonathan Loaisiga Player Notes
	Isaac Mattson RP - PIT	Jonathan Loaisiga RP - ARI
News
	The Pirates placed RHP Isaac Mattson on the 15-day injured list with hip inflammation. Ari Koslow Tue, Sep 8th	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
	The Pirates recalled RHP Isaac Mattson from Triple-A Indianapolis. Ari Koslow Fri, Sep 4th	The Diamondbacks selected the contract of RHP Jonathan Loaisiga. Ari Koslow Wed, Mar 25th
	The Pirates optioned Isaac Mattson to Triple-A Indianapolis. Ari Koslow Tue, Aug 18th	D-backs reliever Jonathan Loaisiga has made the Opening Day roster. Brenton Kemp Sun, Mar 22nd
	The Pirates recalled RHP Isaac Mattson from Triple-A Indianapolis. Ari Koslow Thu, Aug 13th	The Diamondbacks signed RHP Jonathan Loáisiga to a minor league contract. Ari Koslow Wed, Jan 14th
	The Pirates optioned RHP Isaac Mattson to Triple-A Indianapolis. Ari Koslow Sun, Aug 2nd
Notes
There are no recent notes for these players

Isaac Mattson or Jonathan Loaisiga Player Schedules
Date	Opp	Opp Pitcher	VBR	Opp	Opp Pitcher	VBR
	Isaac Mattson RP - PIT			Jonathan Loaisiga RP - ARI
Thu, Mar 26th	@ NYM	Freddy Peralta (9-11)	#49	@ LAD	Yoshinobu Yamamoto (14-8)	#2
Sat, Mar 28th	@ NYM	David Peterson (8-8)	#92	@ LAD	Tyler Glasnow (5-1)	#15
Sun, Mar 29th	@ NYM	Nolan McLean (11-10)	#44
Mon, Mar 30th	@ CIN	Chase Burns (15-3)	#62	vs DET	Justin Verlander (0-1)	#249
Tue, Mar 31st	@ CIN	Brandon Williamson (4-4)	#371	vs DET	Casey Mize (6-9)	#68
Wed, Apr 1st	@ CIN	Andrew Abbott (6-11)	#139	vs DET	Tarik Skubal (10-7)	#1
Fri, Apr 3rd	vs BAL	Kyle Bradish (7-14)		vs ATL	Grant Holmes (9-5)	#257
Sat, Apr 4th	vs BAL	Shane Baz (6-15)	#58	vs ATL	Bryce Elder (8-8)
Sun, Apr 5th	vs BAL	Chris Bassitt (8-5)	#88	vs ATL	Martin Perez (9-9)	#164
Mon, Apr 6th	vs SD	German Marquez (4-2)
Tue, Apr 7th	vs SD	Nick Pivetta (3-2)	#60	@ NYM	Freddy Peralta (9-11)	#49
Wed, Apr 8th	vs SD	Michael King (12-9)	#59	@ NYM	David Peterson (8-8)	#92
Fri, Apr 10th	@ CHC	Shota Imanaga (11-10)	#20	@ PHI	Jesus Luzardo (14-5)
Sat, Apr 11th	@ CHC	Edward Cabrera (5-5)	#196	@ PHI	Taijuan Walker (1-4)
Sun, Apr 12th	@ CHC	Jameson Taillon (2-6)		@ PHI	Zach Pop
Mon, Apr 13th	vs WSH	Cade Cavalli (13-5)	#35	@ BAL	Dean Kremer (3-5)	#84
Tue, Apr 14th	vs WSH	PJ Poulin (3-0)		@ BAL	Trevor Rogers (10-10)	#36
Wed, Apr 15th	vs WSH	Jake Irvin (2-9)	#198	@ BAL	Kyle Bradish (7-14)
Thu, Apr 16th	vs WSH	Foster Griffin (15-5)	#46
Fri, Apr 17th	vs TB	Nick Martinez (15-4)	#56	vs TOR	Braydon Fisher (3-4)	#188
Sat, Apr 18th	vs TB	Drew Rasmussen (15-5)	#13	vs TOR	Max Scherzer (3-8)	#116
Sun, Apr 19th	vs TB	Shane McClanahan (10-7)	#101	vs TOR	Kevin Gausman (9-12)	#22
Tue, Apr 21st	@ TEX	Kumar Rocker (5-11)	#121	vs CWS	Sean Burke (9-7)	#83
Wed, Apr 22nd	@ TEX	Jack Leiter (3-7)	#258	vs CWS	Anthony Kay (9-9)	#171
Thu, Apr 23rd	@ TEX	Jacob deGrom (11-9)	#9	vs CWS	Davis Martin (9-7)	#136
Fri, Apr 24th	@ MIL	Brandon Woodruff (2-2)
Sat, Apr 25th	@ MIL	Jacob Misiorowski (15-5)	#4	vs SD	German Marquez (4-2)
Sun, Apr 26th	@ MIL	Kyle Harrison (10-5)	#75	vs SD	Michael King (12-9)	#59
Mon, Apr 27th	vs STL	Dustin May (7-9)	#52
Tue, Apr 28th	vs STL	Kyle Leahy (10-5)	#85	@ MIL	Chad Patrick (9-4)	#143
Wed, Apr 29th	vs STL	Andre Pallante (12-7)	#122	@ MIL	Brandon Sproat (3-7)	#289
Thu, Apr 30th	vs STL	Hunter Dobbins (3-3)		@ MIL	Brandon Woodruff (2-2)
Fri, May 1st	vs CIN	Brady Singer (6-15)	#355	@ CHC	Colin Rea (8-8)	#259
Sat, May 2nd	vs CIN	Rhett Lowder (6-11)	#308	@ CHC	Shota Imanaga (11-10)	#20
Sun, May 3rd	vs CIN	Chase Burns (15-3)	#62	@ CHC	Matthew Boyd (8-5)	#31
Tue, May 5th	@ ARI	Eduardo Rodriguez (15-7)	#76	vs PIT	Bubba Chandler (8-9)	#123
Wed, May 6th	@ ARI	Michael Soroka (8-5)	#40	vs PIT	Paul Skenes (10-11)	#6
Thu, May 7th	@ ARI	Zac Gallen (3-9)	#131	vs PIT	Mitch Keller (6-8)
Fri, May 8th	@ SF	Robbie Ray (13-8)	#71	vs NYM	Nolan McLean (11-10)	#44
Sat, May 9th	@ SF	Landen Roupp (9-14)	#149	vs NYM	Clay Holmes (6-8)	#53
Sun, May 10th	@ SF	Tyler Mahle (7-10)	#41	vs NYM	Huascar Brazoban (5-2)	#280
Tue, May 12th	vs COL	Michael Lorenzen (3-13)	#161	@ TEX	MacKenzie Gore (8-11)	#34
Wed, May 13th	vs COL	Jose Quintana (2-3)	#376	@ TEX	Kumar Rocker (5-11)	#121
Thu, May 14th	vs COL	Chase Dollander (3-3)
Fri, May 15th	vs PHI	Aaron Nola (7-10)	#48	@ COL	Kyle Freeland (4-10)	#359
Sat, May 16th	vs PHI	Cristopher Sanchez (17-6)	#7	@ COL	Tomoyuki Sugano (12-10)	#377
Sun, May 17th	vs PHI	Zack Wheeler (13-5)	#5	@ COL	Michael Lorenzen (3-13)	#161
Tue, May 19th	@ STL	Matthew Liberatore (5-14)	#105	vs SF	Landen Roupp (9-14)	#149
Wed, May 20th	@ STL	Michael McGreevy (7-9)	#113	vs SF	Tyler Mahle (7-10)	#41
Thu, May 21st	@ STL	Dustin May (7-9)	#52	vs COL	Zach Agnos (0-2)	#368
Fri, May 22nd	@ TOR	Kevin Gausman (9-12)	#22	vs COL	Tomoyuki Sugano (12-10)	#377
Sat, May 23rd	@ TOR	Patrick Corbin (3-4)		vs COL	Michael Lorenzen (3-13)	#161
Sun, May 24th	@ TOR	Dylan Cease (11-6)	#8	vs COL	Jose Quintana (2-3)	#376
Mon, May 25th	vs CHC	Ben Brown (4-2)		@ SF	Landen Roupp (9-14)	#149
Tue, May 26th	vs CHC	Jordan Wicks (0-2)		@ SF	Tyler Mahle (7-10)	#41
Wed, May 27th	vs CHC	Jameson Taillon (2-6)		@ SF	Trevor McDonald (3-7)
Thu, May 28th	vs CHC	Colin Rea (8-8)	#259
Fri, May 29th	vs MIN	Taj Bradley (11-6)	#26	@ SEA	George Kirby (9-11)	#21
Sat, May 30th	vs MIN	Bailey Ober (7-6)	#97	@ SEA	Bryan Woo (12-9)	#11
Sun, May 31st	vs MIN	Zebby Matthews (9-10)	#108	@ SEA	Bryce Miller (4-9)	#72
Tue, Jun 2nd	@ HOU	Mike Burrows (4-9)	#167	vs LAD	Eric Lauer (8-7)
Wed, Jun 3rd	@ HOU	Spencer Arrighetti (8-9)	#291	vs LAD	Shohei Ohtani (8-2)	#39
Thu, Jun 4th	@ HOU	Kai-Wei Teng (5-7)	#169	vs LAD	Justin Wrobleski (11-5)	#99
Fri, Jun 5th	@ ATL	Martin Perez (9-9)	#164	vs WSH	Foster Griffin (15-5)	#46
Sat, Jun 6th	@ ATL	Spencer Strider (4-2)		vs WSH	Zack Littell (8-8)	#158
Sun, Jun 7th	@ ATL	Bryce Elder (8-8)		vs WSH	Cade Cavalli (13-5)	#35
Tue, Jun 9th	vs LAD	Eric Lauer (8-7)		@ MIA	Max Meyer (9-1)
Wed, Jun 10th	vs LAD	Shohei Ohtani (8-2)	#39	@ MIA	Ryan Gusto (1-5)	#135
Thu, Jun 11th	vs LAD	Justin Wrobleski (11-5)	#99	@ MIA	Tyler Phillips (5-6)	#221
Fri, Jun 12th	vs MIA	Sandy Alcantara (13-10)	#54	@ CIN	Nick Lodolo (3-5)	#192
Sat, Jun 13th	vs MIA	Lake Bachar (1-4)	#219	@ CIN	Rhett Lowder (6-11)	#308
Sun, Jun 14th	vs MIA	Max Meyer (9-1)		@ CIN	Andrew Abbott (6-11)	#139
Mon, Jun 15th	@ ATH	J.T. Ginn (9-8)		vs LAA	Walbert Urena (9-10)	#194
Tue, Jun 16th	@ ATH	Jack Perkins (3-11)	#94	vs LAA	Reid Detmers (6-8)	#27
Wed, Jun 17th	@ ATH	Aaron Civale (6-7)	#128	vs LAA	Sam Aldegheri (3-4)	#351
Fri, Jun 19th	@ COL	Kyle Freeland (4-10)	#359	vs MIN	Connor Prielipp (6-7)	#93
Sat, Jun 20th	@ COL	Tomoyuki Sugano (12-10)	#377	vs MIN	Taj Bradley (11-6)	#26
Sun, Jun 21st	@ COL	Michael Lorenzen (3-13)	#161	vs MIN	Mike Paredes (0-3)
Tue, Jun 23rd	vs SEA	George Kirby (9-11)	#21	@ STL	Kyle Leahy (10-5)	#85
Wed, Jun 24th	vs SEA	Bryan Woo (12-9)	#11	@ STL	Matthew Liberatore (5-14)	#105
Thu, Jun 25th	vs SEA	Bryce Miller (4-9)	#72
Fri, Jun 26th	vs CIN	Andrew Abbott (6-11)	#139	@ TB	Nick Martinez (15-4)	#56
Sat, Jun 27th	vs CIN	Chase Burns (15-3)	#62	@ TB	Cole Sulser
Sun, Jun 28th	vs CIN	Brady Singer (6-15)	#355	@ TB	Drew Rasmussen (15-5)	#13
Mon, Jun 29th	@ PHI	Aaron Nola (7-10)	#48	vs SF	Tyler Mahle (7-10)	#41
Tue, Jun 30th	@ PHI	Cristopher Sanchez (17-6)	#7	vs SF	Landen Roupp (9-14)	#149
Wed, Jul 1st	@ PHI	Zack Wheeler (13-5)	#5	vs SF	Trevor McDonald (3-7)
Thu, Jul 2nd	@ PHI	Alan Rangel (0-3)	#346
Fri, Jul 3rd	@ WSH	Foster Griffin (15-5)	#46	vs MIL	Kyle Harrison (10-5)	#75
Sat, Jul 4th	@ WSH	Carson Palmquist (0-2)	#362	vs MIL	Brandon Woodruff (2-2)
Sun, Jul 5th	@ WSH	Cade Cavalli (13-5)	#35	vs MIL	Brandon Sproat (3-7)	#289
Tue, Jul 7th	vs ATL	Hurston Waldrep (0-1)		@ SD	German Marquez (4-2)
Wed, Jul 8th	vs ATL	Grant Holmes (9-5)	#257	@ SD	Michael King (12-9)	#59
Thu, Jul 9th	vs ATL	Bryce Elder (8-8)		@ SD	Griffin Canning (4-9)	#197
Sat, Jul 11th	vs MIL	Shane Drohan (7-5)	#98	@ LAD	Yoshinobu Yamamoto (14-8)	#2
Sun, Jul 12th	vs MIL	Robert Gasser (4-5)	#114	@ LAD	Emmet Sheehan (5-8)	#95
Sat, Jul 18th	@ CLE	Logan Allen (0-0)	#179	vs STL	Dustin May (7-9)	#52
Sun, Jul 19th	@ CLE	Joey Cantillo (10-9)	#82	vs STL	Andre Pallante (12-7)	#122
Mon, Jul 20th	@ NYY	Ryan Weathers (5-8)	#236	vs ATH	Jeffrey Springs (4-14)	#296
Wed, Jul 22nd	@ NYY	Max Fried (5-4)	#14	vs ATH	Gage Jump (6-11)
Fri, Jul 24th	vs CHC	Matthew Boyd (8-5)	#31	@ WSH	Carson Palmquist (0-2)	#362
Sat, Jul 25th	vs CHC	Shota Imanaga (11-10)	#20	@ WSH	Foster Griffin (15-5)	#46
Sun, Jul 26th	vs CHC	Jameson Taillon (2-6)		@ WSH	Miles Mikolas (3-9)
Mon, Jul 27th	vs ARI	Merrill Kelly (9-14)	#79	@ PIT	Mitch Keller (6-8)
Tue, Jul 28th	vs ARI	Brandon Pfaadt (7-3)	#66	@ PIT	Bubba Chandler (8-9)	#123
Wed, Jul 29th	vs ARI	Eduardo Rodriguez (15-7)	#76	@ PIT	Jared Jones (4-6)	#63
Thu, Jul 30th	@ CIN	Rhett Lowder (6-11)	#308
Fri, Jul 31st	@ CIN	Hunter Greene (2-2)		@ CLE	Tanner Bibee (6-15)	#42
Sat, Aug 1st	@ CIN	Andrew Abbott (6-11)	#139	@ CLE	Parker Messick (12-9)	#24
Sun, Aug 2nd	@ CIN	Chase Burns (15-3)	#62	@ CLE	Gavin Williams (13-8)	#16
Mon, Aug 3rd	@ MIL	Brandon Sproat (3-7)	#289	vs SD	Michael King (12-9)	#59
Tue, Aug 4th	@ MIL	Logan Henderson (10-3)	#17	vs SD	Randy Vasquez (10-6)	#244
Wed, Aug 5th	@ MIL	Kyle Harrison (10-5)	#75	vs SD	Casey Mize (6-9)	#68
Thu, Aug 6th	@ MIL	Dustin May (7-9)	#52	vs SD	Walker Buehler (8-6)	#225
Fri, Aug 7th	vs NYM	Zac Thornton (5-5)	#157	vs LAD	Roki Sasaki (5-5)	#78
Sat, Aug 8th	vs NYM	Robert Stock (1-3)		vs LAD	Yoshinobu Yamamoto (14-8)	#2
Sun, Aug 9th	vs NYM	Sean Manaea (5-7)	#65	vs LAD	Justin Wrobleski (11-5)	#99
Tue, Aug 11th	@ MIA	Eury Perez (7-11)	#61	vs COL	Tomoyuki Sugano (12-10)	#377
Wed, Aug 12th	@ MIA	Janson Junk (6-9)	#106	vs COL	Ryan Feltner (6-10)	#374
Thu, Aug 13th	@ MIA	Tyler Phillips (5-6)	#221
Fri, Aug 14th	vs BOS	Jake Bennett (9-7)	#47	@ ATL	Chris Sale (14-9)	#3
Sat, Aug 15th	vs BOS	Sonny Gray (17-5)	#33	@ ATL	Grant Holmes (9-5)	#257
Sun, Aug 16th	vs BOS	Patrick Sandoval (1-6)	#104	@ ATL	Bryce Elder (8-8)
Mon, Aug 17th	vs DET	Framber Valdez (10-11)	#50	@ BOS	Alec Gamboa
Tue, Aug 18th	vs DET	Keider Montero (9-9)	#155	@ BOS	Ranger Suarez (8-4)	#28
Wed, Aug 19th	vs DET	Jackson Jobe (2-2)	#207	@ BOS	Payton Tolle (9-6)	#37
Fri, Aug 21st	@ LAD	Yoshinobu Yamamoto (14-8)	#2	vs CIN	Nick Lodolo (3-5)	#192
Sat, Aug 22nd	@ LAD	Tarik Skubal (10-7)	#1	vs CIN	Rhett Lowder (6-11)	#308
Sun, Aug 23rd	@ LAD	Blake Snell (4-1)	#74	vs CIN	Andrew Abbott (6-11)	#139
Mon, Aug 24th	@ SD	Robbie Ray (13-8)	#71	vs CHC	Kevin Gausman (9-12)	#22
Tue, Aug 25th	@ SD	Michael King (12-9)	#59	vs CHC	Clay Holmes (6-8)	#53
Wed, Aug 26th	@ SD	Randy Vasquez (10-6)	#244	vs CHC	Matthew Boyd (8-5)	#31
Fri, Aug 28th	@ STL	Quinn Mathews (2-3)	#210	@ SF	Blade Tidwell (1-2)	#256
Sat, Aug 29th	@ STL	Kyle Leahy (10-5)	#85	@ SF	Yunior Marte (0-0)	#255
Sun, Aug 30th	@ STL	Matthew Liberatore (5-14)	#105
Tue, Sep 1st	vs SF	Logan Webb (8-9)	#19	vs PHI	Jesus Luzardo (14-5)
Wed, Sep 2nd	vs SF	Landen Roupp (9-14)	#149	vs PHI	Andrew Painter (3-9)	#195
Thu, Sep 3rd	vs SF	Blade Tidwell (1-2)	#256
Fri, Sep 4th	vs LAA	Ryan Johnson (5-8)	#237	@ HOU	Cristian Javier (2-6)	#224
Sat, Sep 5th	vs LAA	Yusei Kikuchi (1-6)	#89	@ HOU	Ethan Pecko (1-0)	#216
Sun, Sep 6th	vs LAA	Walbert Urena (9-10)	#194	@ HOU	Peter Lambert (8-10)	#287
Tue, Sep 8th	@ CWS	Sean Burke (9-7)	#83	@ KC	Michael Wacha (9-9)	#64
Wed, Sep 9th	@ CWS	Davis Martin (9-7)	#136	@ KC	Daniel Lynch (6-5)	#239
Thu, Sep 10th	@ CWS	Hagen Smith (3-2)	#133
Fri, Sep 11th	@ CHC	Shota Imanaga (11-10)	#20	vs TEX	MacKenzie Gore (8-11)	#34
Sat, Sep 12th	@ CHC	Clay Holmes (6-8)	#53	vs TEX	Kumar Rocker (5-11)	#121
Sun, Sep 13th	@ CHC	Matthew Boyd (8-5)	#31	vs TEX	Cal Quantrill (9-5)	#227
Tue, Sep 15th	vs MIL	Jacob Misiorowski (15-5)	#4	vs MIA	Janson Junk (6-9)	#106
Wed, Sep 16th	vs MIL	Logan Henderson (10-3)	#17	vs MIA	Ryan Gusto (1-5)	#135
Thu, Sep 17th	vs MIL	Kyle Harrison (10-5)	#75
Fri, Sep 18th	vs KC	Randy Dobnak (3-4)	#375	vs NYY	Gerrit Cole (9-9)	#18
Sat, Sep 19th	vs KC	Noah Cameron (9-8)	#57	vs NYY	Cam Schlittler (14-6)	#10
Sun, Sep 20th	vs KC	Michael Wacha (9-9)	#64	vs NYY	Will Warren (10-6)	#45
Tue, Sep 22nd	vs STL	Andre Pallante (12-7)	#122	@ COL	Mason Adams (0-1)	#361
Wed, Sep 23rd	vs STL	Matthew Liberatore (5-14)	#105	@ COL	Tanner Gordon (1-5)	#369
Thu, Sep 24th	vs STL	Kyle Leahy (10-5)	#85	@ COL	Gabriel Hughes (0-8)	#354
Fri, Sep 25th	@ DET	Jackson Jobe (2-2)	#207	@ SD	Casey Mize (6-9)	#68
Sat, Sep 26th	@ DET	Troy Melton (8-4)	#86	@ SD	Joe Musgrove	#247
Sun, Sep 27th	@ DET	Keider Montero (9-9)	#155	@ SD	Walker Buehler (8-6)	#225
Fri, Mar 27th				@ LAD	Emmet Sheehan (5-8)	#95
Thu, Apr 2nd				vs ATL	Reynaldo Lopez (4-5)
Thu, Apr 9th				@ NYM	Nolan McLean (11-10)	#44
Mon, May 11th				@ TEX	Jakob Junis
Mon, May 18th				vs SF	Robbie Ray (13-8)	#71
Mon, Jun 1st				vs LAD	Emmet Sheehan (5-8)	#95
Mon, Jun 22nd				@ STL	Andre Pallante (12-7)	#122
Mon, Jul 6th				@ SD	Walker Buehler (8-6)	#225
Fri, Jul 10th				@ LAD	Kyle Hurt
Fri, Jul 17th				vs STL	Michael McGreevy (7-9)	#113
Tue, Jul 21st				vs ATH	Jack Perkins (3-11)	#94
Thu, Jul 23rd				@ STL	Michael McGreevy (7-9)	#113
Mon, Aug 10th				vs COL	Gabriel Hughes (0-8)	#354
Thu, Aug 27th				@ SF	Landen Roupp (9-14)	#149
Mon, Aug 31st				vs PHI	Aaron Nola (7-10)	#48
Mon, Sep 7th				@ KC	Noah Cameron (9-8)	#57
Mon, Sep 14th				vs MIA	Sandy Alcantara (13-10)	#54