Major League Baseball
PLAYERS
Isaac Mattson
#72 - Pittsburgh Pirates
Profile
Position Starter
Height 6'2"
Weight 215 lbs
Birthdate July 14, 1995
Birthplace Erie, Pennsylvania
College Pittsburgh
Bats Right
Throws Right
Key Statistics
IP 44.0
W/L 3-3
SV 0
ERA 2.25
K 45
BB 18
OBP .279
Errors 1
Last 10
Date vs Res Score IP H R ER K BB HR
9/14/25 @ WAS L 3-4 2.0 1 1 0 1 1 0
9/10/25 @ BAL BS 1-2 1.0 3 1 1 0 0 0
9/9/25 @ BAL 2-3 1.0 0 0 0 1 2 0
9/7/25 MIL 2-10 1.0 0 0 0 1 2 0
9/3/25 LAD H 3-0 1.0 0 0 0 1 0 0
9/2/25 LAD H 9-7 1.0 3 2 2 0 0 0
8/29/25 @ BOS H 4-2 1.0 1 0 0 1 0 0
8/27/25 @ STL H 2-1 1.0 0 0 0 1 0 0
8/26/25 @ STL 8-3 1.0 0 0 0 1 0 0
8/24/25 COL 4-0 1.0 0 0 0 1 0 0
Pitching Statistics
Year Team W L ERA IP H R ER BB K HR
2021 BAL 0 0 6.23 4.1 5 3 3 5 3 0
2024 PIT 0 0 5.06 5.1 1 3 3 5 6 0
2025 PIT 3 3 2.25 44.0 31 12 11 18 45 3
Pitching Splits
  Overall Last 3 Away Home Day Night
W/L
ERA
IP
Hits
Runs
ER
K
BB
HR		 3-3
2.25
44.0
31
12
11
45
18
3		 0-0
0.00
0.0
0
0
0
0
0
0		 1-3
1.96
23.0
17
6
5
21
8
2		 2-0
2.57
21.0
14
6
6
24
10
1		 2-2
1.00
18.0
10
3
2
14
10
0		 1-1
3.12
26.0
21
9
9
31
8
3
OBP
WHIP
GB:FB
SB
CS
SB %
QS %		 .279
1.11
0.67
0
0
0
0.0		 .000
0.00
0
0
0
0
0.0		 .263
1.09
0.55
0
0
0
0.0		 .295
1.14
0.85
0
0
0
0.0		 .276
1.11
0.20
0
0
0
0.0		 .280
1.12
1.38
0
0
0
0.0
TW/TL
AF
AA
Total
Over
Under		 19-21
3.80
4.03
7.83
17
22		 0-0
0.00
0.00
0.00
0
0		 9-10
3.74
3.53
7.26
6
12		 10-11
3.86
4.48
8.33
11
10		 7-8
3.80
4.47
8.27
5
9		 12-13
3.80
3.76
7.56
12
13
Season Injury Log
Date On Date Off Injury Status
No injuries to report.