which starting pitcher had the highest era against the mariners last season

Jason Alexander had the highest ERA by a starting pitcher against the Mariners in 2025, with an ERA of 47.25.

NAMEERASEASONTMGWLW%GSSOCGSHOSVIPHERRHRBBHBPGFIBBTBFWPK/9BB/9K/BBHR/9K%BB%WHIPBABIPRAH/9
1Jason Alexander
J. Alexander
47.25
2025
HOU HOU
1
0
1
.000
1
1
0
0
0
1.1
7
7
7
2
1
0
0
0
12
0
6.75
6.75
1.00
13.50
8.3
8.3
6.00
.625
47.25
47.25
2Jacob Lopez
J. Lopez
40.50
2025
ATH ATH
1
0
1
.000
1
2
0
0
0
2.0
6
9
9
2
6
0
0
0
18
0
9.00
27.00
0.33
9.00
11.1
33.3
6.00
.500
40.50
27.00
3Jonathan Cannon
J. Cannon
37.80
2025
CWS CWS
1
0
1
.000
1
1
0
0
0
1.2
4
7
7
2
3
0
0
0
13
0
5.40
16.20
0.33
10.80
7.7
23.1
4.20
.286
37.80
21.60
4Easton Lucas
E. Lucas
32.40
2025
TOR TOR
1
0
1
.000
1
5
0
0
0
1.2
7
6
6
2
2
0
0
0
14
1
27.00
10.80
2.50
10.80
35.7
14.3
5.40
1.000
32.40
37.80
5Connor Gillispie
C. Gillispie
31.50
2025
MIA MIA
1
0
1
.000
1
2
0
0
0
2.0
6
7
7
2
3
0
0
0
15
0
9.00
13.50
0.67
9.00
13.3
20.0
4.50
.500
31.50
27.00
6Joey Wentz
J. Wentz
23.14
2025
ATL ATL
1
0
1
.000
1
2
0
0
0
2.1
7
6
8
2
1
0
0
0
16
0
7.71
3.86
2.00
7.71
12.5
6.3
3.43
.455
30.86
27.00
7Walker Buehler
W. Buehler
21.60
2025
BOS BOS
1
0
1
.000
1
2
0
0
0
3.1
8
8
8
1
4
0
0
0
21
0
5.40
10.80
0.50
2.70
9.5
19.0
3.60
.500
21.60
21.60
8Joe Boyle
J. Boyle
16.20
2025
TBR TBR
1
0
1
.000
1
5
0
0
0
3.1
4
6
6
3
5
0
0
0
19
1
13.50
13.50
1.00
8.10
26.3
26.3
2.70
.167
16.20
10.80
9Michael Wacha
M. Wacha
14.09
2025
KCR KCR
2
0
2
.000
2
1
0
0
0
7.2
17
12
12
4
2
1
0
0
41
0
1.17
2.35
0.50
4.70
2.4
4.9
2.48
.394
14.09
19.96
10Tanner Gordon
T. Gordon
13.50
2025
COL COL
1
0
1
.000
1
3
0
0
0
3.1
8
5
7
3
0
1
0
0
19
0
8.10
0.00
8.10
15.8
0.0
2.40
.417
18.90
21.60
11Bradley Blalock
B. Blalock
12.27
2025
COL COL
1
0
1
.000
1
1
0
0
0
3.2
6
5
5
1
2
1
0
1
20
0
2.45
4.91
0.50
2.45
5.0
10.0
2.18
.333
12.27
14.73
12Colin Rea
C. Rea
11.81
2025
CHC CHC
1
0
1
.000
1
2
0
0
0
5.1
11
7
7
4
1
0
0
0
27
0
3.38
1.69
2.00
6.75
7.4
3.7
2.25
.350
11.81
18.56
13Justin Verlander
J. Verlander
11.57
2025
SFG SFG
1
0
0
1
2
0
0
0
2.1
5
3
3
1
2
0
0
0
14
0
7.71
7.71
1.00
3.86
14.3
14.3
3.00
.444
11.57
19.29
14Mitch Farris
M. Farris
11.25
2025
LAA LAA
1
0
1
.000
1
7
0
0
0
4.0
5
5
5
1
4
1
0
0
22
0
15.75
9.00
1.75
2.25
31.8
18.2
2.25
.444
11.25
11.25
15Matthew Liberatore
M. Liberatore
11.25
2025
STL STL
1
0
1
.000
1
1
0
0
0
4.0
6
5
5
2
3
0
0
0
20
0
2.25
6.75
0.33
4.50
5.0
15.0
2.25
.286
11.25
13.50
16Max Meyer
M. Meyer
11.25
2025
MIA MIA
1
0
1
.000
1
6
0
0
0
4.0
5
5
5
1
4
0
0
0
21
0
13.50
9.00
1.50
2.25
28.6
19.0
2.25
.400
11.25
11.25
17Yu Darvish
Y. Darvish
9.00
2025
SDP SDP
1
0
1
.000
1
3
0
0
0
4.0
4
4
4
1
1
0
0
0
17
0
6.75
2.25
3.00
2.25
17.6
5.9
1.25
.250
9.00
9.00
18Luis L. Ortiz
L. L. Ortiz
9.00
2025
CLE CLE
1
0
1
.000
1
5
0
0
0
6.0
5
6
6
1
5
1
0
0
29
0
7.50
7.50
1.00
1.50
17.2
17.2
1.67
.235
9.00
7.50
19Dylan Cease
D. Cease
8.31
2025
SDP SDP
1
0
0
1
5
0
0
0
4.1
4
4
4
1
3
0
0
0
20
0
10.38
6.23
1.67
2.08
25.0
15.0
1.62
.273
8.31
8.31
20Kyle Hendricks
K. Hendricks
8.22
2025
LAA LAA
3
2
1
.667
3
11
0
0
0
15.1
20
14
14
2
5
0
0
1
70
0
6.46
2.93
2.20
1.17
15.7
7.1
1.63
.346
8.22
11.74
21Mitchell Parker
M. Parker
7.71
2025
WSH WSH
1
0
1
.000
1
4
0
0
0
4.2
7
4
4
3
1
0
0
0
21
0
7.71
1.93
4.00
5.79
19.0
4.8
1.71
.308
7.71
13.50
22Lance McCullers Jr.
L. McCullers Jr.
7.71
2025
HOU HOU
2
0
0
2
9
0
0
0
7.0
10
6
6
1
6
1
0
0
38
0
11.57
7.71
1.50
1.29
23.7
15.8
2.29
.429
7.71
12.86
23Nick Lodolo
N. Lodolo
7.71
2025
CIN CIN
1
0
0
1
6
0
0
0
4.2
5
4
4
2
1
1
0
0
21
0
11.57
1.93
6.00
3.86
28.6
4.8
1.29
.273
7.71
9.64
24Bailey Ober
B. Ober
7.36
2025
MIN MIN
2
0
1
.000
2
11
0
0
0
11.0
13
9
9
4
1
1
0
0
48
0
9.00
0.82
11.00
3.27
22.9
2.1
1.27
.290
7.36
10.64
25Sean Manaea
S. Manaea
7.20
2025
NYM NYM
1
0
0
1
7
0
0
0
5.0
6
4
4
2
1
1
0
0
23
0
12.60
1.80
7.00
3.60
30.4
4.3
1.40
.333
7.20
10.80
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