Isaac Mattson

Isaac Mattson

29-Year-Old PitcherRP
 Free Agent  
Free Agent
2024 Stats
W-L
0-0
ERA
5.06
WHIP
1.13
K
6
SV
0
2025 Projections
W-L
ERA
WHIP
K
SV
Unlock Our Projections
2025 Fantasy Outlook
There was no outlook written for Isaac Mattson in 2025. Check out the latest news below for more on his current fantasy value.
Bats R
Throws R
40 Man No
Height 6'2"
Weight 205
DOB 7/14/1995
Born Erie, PA
College Pittsburgh
Drafted 19th Rd 2017 LAA
$Signed a one-year contract with the Pirates in December of 2023.
Removed from 40-man roster
PPittsburgh Pirates  
November 4, 2024
The Pirates outrighted Mattson to Triple-A Indianapolis on Monday, Andrew Destin of the Pittsburgh Post-Gazette reports.
ANALYSIS
Mattson is no longer on the 40-man roster but will stick around in the organization. He allowed three runs over 5.1 relief innings for the Pirates this season.
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Pitching Stats
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2024
2021
2024 MLB Game Log
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Scoring
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2021 MLB Game Log
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Pitching Appearances Breakdown
Average Pitch Count
33
Last 10 Games
33
Last 5 Games
33
How many pitches does Isaac Mattson generally throw?
 
1-10
 
11-20
 
21-30
 
31-40
 
41-50
 
51-60
 
61-70
 
71-80
 
81-90
 
91-100
 
101-110
 
111-120
 
121+
 
1-10
 
11-20
 
21-30
 
31-40
 
41-50
 
51-60
 
61-70
 
71-80
 
81-90
 
91-100
 
101-110
 
111-120
 
121+
 
1-10
 
11-20
 
21-30
 
31-40
 
41-50
 
51-60
 
61-70
 
71-80
 
81-90
 
91-100
 
101-110
 
111-120
 
121+
What part of the game does Isaac Mattson generally pitch?
 
 
 
1st
 
 
 
2nd
 
 
 
3rd
 
 
 
4th
 
 
 
5th
 
 
 
6th
 
 
 
7th
 
 
 
8th
 
 
 
9th
 
Extra
 
 
 
1st
 
 
 
2nd
 
 
 
3rd
 
 
 
4th
 
 
 
5th
 
 
 
6th
 
 
 
7th
 
 
 
8th
 
 
 
9th
 
Extra
 
 
 
1st
 
 
 
2nd
 
 
 
3rd
 
 
 
4th
 
 
 
5th
 
 
 
6th
 
 
 
7th
 
 
 
8th
 
 
 
9th
 
Extra
% Games Reaching Innings Threshold
% Games By Number of Innings Pitched
Left/Right Pitching Splits
Since 2022
 
 
-100%
BAA vs LHP
2024
 
 
-100%
BAA vs LHP
2023
No Stats
2022
No Stats
BAA Batters K BB H 2B 3B HR
Since 2022vs Left .000 10 4 1 0 0 0 0
Since 2022vs Right .125 13 2 4 1 0 0 0
2024vs Left .000 10 4 1 0 0 0 0
2024vs Right .125 13 2 4 1 0 0 0
2023vs Left 0 0 0 0 0 0 0 0
2023vs Right 0 0 0 0 0 0 0 0
2022vs Left 0 0 0 0 0 0 0 0
2022vs Right 0 0 0 0 0 0 0 0
More Splits→ View More Split Stats
Home/Away Pitching Splits
Since 2022
 
 
-100%
ERA on Road
2024
 
 
-100%
ERA on Road
2023
No Stats
2022
No Stats
ERA WHIP IP W L SV K/9 BB/9 HR/9
Since 2022Home 20.25 3.75 1.1 0 0 0 6.8 27.0 0.0
Since 2022Away 0.00 0.25 4.0 0 0 0 11.3 2.3 0.0
2024Home 20.25 3.75 1.1 0 0 0 6.8 27.0 0.0
2024Away 0.00 0.25 4.0 0 0 0 11.3 2.3 0.0
2023Home 0 0 0 0 0 0 0 0 0
2023Away 0 0 0 0 0 0 0 0 0
2022Home 0 0 0 0 0 0 0 0 0
2022Away 0 0 0 0 0 0 0 0 0
More Splits→ View More Split Stats
Stat Review
How does Isaac Mattson compare to other relievers?
This section compares his stats with all relief pitcher seasons from the previous three seasons (minimum 30 innings)*. The bar represents the player's percentile rank. For example, if the bar is halfway across, then the player falls into the 50th percentile for that stat and it would be considered average.

* Exit Velocity, Barrels/BBE %, Balls Hit 95+ MPH %, and Spin Rate are benchmarked against 2019 data (min 30 IP). See here for more exit velocity/barrels stats plus an explanation of current limitations with that data set.
  • K/BB
    Strikeout to walk ratio.
  • K/9
    Average strikeouts per nine innings.
  • BB/9
    Average walks per nine innings.
  • HR/9
    Average home runs allowed per nine innings.
  • Fastball
    Average fastball velocity.
  • ERA
    Earned run average. The average earned runs allowed per nine innings.
  • WHIP
    Walks plus hits per inning pitched.
  • BABIP
    Batting average on balls in play. Measures how many balls in play against a pitcher go for hits.
  • GB/FB
    Groundball to flyball ratio. The higher the number, the more likely a pitcher is to induce groundballs.
  • Left On Base
    The percentage of base runners that a pitcher strands on base over the course of a season.
  • Exit Velocity
    The speed of the baseball as it comes off the bat, immediately after a batter makes contact.
  • Barrels/BBE
    The percentage of batted ball events resulting in a Barrel. A Barrel is a batted ball with similar exit velocity and launch angle to past ones that led to a minimum .500 batting average and 1.500 slugging percentage.
  • Spin Rate
    Spin Rate is the rate of spin on a baseball after it is released. It is measured in revolutions per minute (rpm).
  • Balls Hit 95+ MPH
    The percentage of batted balls hit that met or exceeded the 95 MPH threshold.
  • Swinging Strike
    The percentage of pitches that result in a swing and a miss.
K/BB
1.20
 
K/9
10.1
 
BB/9
8.4
 
HR/9
0.0
 
Fastball
94.1 mph
 
ERA
5.06
 
WHIP
1.13
 
BABIP
.100
 
GB/FB
2.00
 
Left On Base
50.0%
 
Exit Velocity
78.2 mph
 
Barrels/BBE
5.9%
 
Spin Rate
2219 rpm
 
Balls Hit 95+ MPH
14.7%
 
Swinging Strike
11.0%
 
Advanced Pitching Stats
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Defensive Stats
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Stats Vs Today's Lineup
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More Fantasy News
Selected from Triple-A
PPittsburgh Pirates  
September 19, 2024
The Pirates selected Mattson was selected from Triple-A Indianapolis on Thursday, Noah Hiles of the Pittsburgh Post-Gazette reports.
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Heads to Pirates on MiLB deal
PPittsburgh Pirates  
December 20, 2023
Mattson signed a minor-league contract with the Pirates on Dec. 11.
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Time's up in Baltimore organization
PFree Agent  
July 19, 2022
The Orioles released Mattson on Monday.
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Healthy at Triple-A
PBaltimore Orioles  
April 20, 2022
Mattson (shoulder) has made three relief appearances for Triple-A Norfolk this season, covering three no-hit scoreless innings while striking out three and issuing one walk.
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Outrighted to Triple-A
PBaltimore Orioles  
Shoulder
April 8, 2022
Mattson (shoulder) cleared waivers and was outrighted to Triple-A Norfolk on Friday, Roch Kubatko of MASNSports.com reports.
ANALYSIS
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