John Halama vs. Jeff Karstens — Career Comparison

John Halama
Gen XNew YorkThrows LeftBats LeftNorth AmericaSeattle MarinersAmerican LeagueStarting Pitcher
Jeff Karstens
MillenialCaliforniaThrows RightBats RightNorth AmericaPittsburgh PiratesNational LeagueStarting Pitcher

The numbers give John Halama a clear advantage over Jeff Karstens across the core pitching metrics. John Halama led in home run suppression (HR9+ 97 vs 80), run prevention (ERA+ 105 vs 92), and skill-based run prevention (DICE+ 96 vs 87). Jeff Karstens held the edge in walk avoidance (BB%+ 133 vs 129). John Halama was the better starter — the numbers make that case clearly.

Pitching Stats for John Halama and Jeff Karstens

John Halama
Careerverified
Per 9 Inningsverified
9
9
Jeff Karstens
Career
Per 9 Innings
7
7
John Halama
Careerverified
Per 9 Inningsverified
262
2.59
Jeff Karstens
Career
Per 9 Innings
138
2.1
John Halama
Careerverified
Per 9 Innings
119
1.18
Jeff Karstens
Career
Per 9 Inningsverified
91
1.38
John Halama
Careerverified
Per 9 Inningsverified
56
0.55
Jeff Karstens
Career
Per 9 Innings
26
0.4
John Halama
Career
Per 9 Inningsverified
48
0.47
Jeff Karstens
Careerverified
Per 9 Innings
40
0.61
John Halama
Careerverified
Per 9 Inningsverified
53.85
53.85
Jeff Karstens
Career
Per 9 Innings
39.39
39.39
John Halama
Career
Per 9 Innings
45.42
45.42
Jeff Karstens
Careerverified
Per 9 Inningsverified
65.94
65.94
John Halama
Career
Per 9 Innings
2
0.02
Jeff Karstens
Career
Per 9 Inningsverified
2
0.03
John Halama
Career
Per 9 Innings
2
0.02
Jeff Karstens
Career
Per 9 Inningsverified
2
0.03
John Halama
Career
Per 9 Innings
0
0
Jeff Karstens
Career
Per 9 Innings
0
0
John Halama
Career
Per 9 Innings
471
4.65
Jeff Karstens
Careerverified
Per 9 Inningsverified
292
4.44
John Halama
Career
Per 9 Innings
4.65
4.65
Jeff Karstens
Careerverified
Per 9 Inningsverified
4.44
4.44
John Halama
Career
Per 9 Innings
4.87
4.87
Jeff Karstens
Careerverified
Per 9 Inningsverified
4.2
4.2
John Halama
Career
Per 9 Innings
4.57
4.57
Jeff Karstens
Careerverified
Per 9 Inningsverified
4.46
4.46
John Halama
Career
Per 9 Innings
0.29
0.29
Jeff Karstens
Careerverified
Per 9 Inningsverified
0.277
0.277
John Halama
Careerverified
Per 9 Innings
2733
27
Jeff Karstens
Career
Per 9 Innings
1777
27
John Halama
Careerverified
Per 9 Innings
911
9
Jeff Karstens
Career
Per 9 Innings
592.1
9
John Halama
Career
Per 9 Innings
1048
10.35
Jeff Karstens
Careerverified
Per 9 Inningsverified
636
9.66
John Halama
Career
Per 9 Innings
10.35
10.35
Jeff Karstens
Careerverified
Per 9 Inningsverified
9.66
9.66
John Halama
Career
Per 9 Inningsverified
113
1.12
Jeff Karstens
Careerverified
Per 9 Innings
80
1.22
John Halama
Careerverified
Per 9 Inningsverified
1.12
1.12
Jeff Karstens
Career
Per 9 Innings
1.22
1.22
John Halama
Careerverified
Per 9 Inningsverified
0.43
0.43
Jeff Karstens
Career
Per 9 Innings
0.58
0.58
John Halama
Career
Per 9 Innings
277
2.74
Jeff Karstens
Careerverified
Per 9 Inningsverified
153
2.32
John Halama
Career
Per 9 Inningsverified
18
0.18
Jeff Karstens
Career
Per 9 Innings
18
0.27
John Halama
Career
Per 9 Innings
2.74
2.74
Jeff Karstens
Careerverified
Per 9 Inningsverified
2.32
2.32
John Halama
Careerverified
Per 9 Innings
492
4.86
Jeff Karstens
Career
Per 9 Inningsverified
330
5.01
John Halama
Career
Per 9 Innings
4.86
4.86
Jeff Karstens
Careerverified
Per 9 Inningsverified
5.01
5.01
John Halama
Career
Per 9 Innings
1.88
1.88
Jeff Karstens
Careerverified
Per 9 Inningsverified
2.39
2.39
John Halama
Careerverified
Per 9 Inningsverified
0.844
0.844
Jeff Karstens
Career
Per 9 Innings
0.815
0.815
John Halama
Career
Per 9 Inningsverified
20
0.2
Jeff Karstens
Careerverified
Per 9 Innings
14
0.21
John Halama
Career
Per 9 Innings
37
0.37
Jeff Karstens
Careerverified
Per 9 Inningsverified
9
0.14
John Halama
Career
Per 9 Innings
7
0.07
Jeff Karstens
Careerverified
Per 9 Inningsverified
4
0.06
John Halama
Careerverified
Per 9 Inningsverified
3996
39.48
Jeff Karstens
Career
Per 9 Innings
2515
38.21
John Halama
Careerverified
Per 9 Inningsverified
58
0.57
Jeff Karstens
Career
Per 9 Innings
14
0.21
John Halama
Career
Per 9 Innings
531
5.25
Jeff Karstens
Careerverified
Per 9 Inningsverified
321
4.88
John Halama
Career
Per 9 Innings
5.25
5.25
Jeff Karstens
Careerverified
Per 9 Inningsverified
4.88
4.88
John Halama
Career
Per 9 Inningsverified
29
0.29
Jeff Karstens
Careerverified
Per 9 Innings
25
0.38
John Halama
Career
Per 9 Inningsverified
34
0.34
Jeff Karstens
Careerverified
Per 9 Innings
28
0.43
John Halama
Careerverified
Per 9 Inningsverified
100
0.99
Jeff Karstens
Career
Per 9 Innings
45
0.68
John Halama
Career
Per 9 Innings
1.454
1.454
Jeff Karstens
Careerverified
Per 9 Inningsverified
1.332
1.332
John Halama
Careerverified
Per 9 Inningsverified
3619
35.75
Jeff Karstens
Career
Per 9 Innings
2300
34.95
John Halama
Careerverified
Per 9 Inningsverified
2.03
2.03
Jeff Karstens
Career
Per 9 Innings
2.33
2.33
John Halama
Career
Per 9 Innings
0.31
0.31
Jeff Karstens
Careerverified
Per 9 Inningsverified
0.294
0.294
John Halama
Careerverified
Per 9 Inningsverified
39.48
39.48
Jeff Karstens
Career
Per 9 Innings
38.21
38.21

Fielding Stats for John Halama and Jeff Karstens

John Halama
Careerverified
Per 9 Inningsverified
9
9
Jeff Karstens
Career
Per 9 Innings
7
7
John Halama
Careerverified
Per 9 Inningsverified
262
2.59
Jeff Karstens
Career
Per 9 Innings
138
2.1
John Halama
Careerverified
Per 9 Innings
119
1.18
Jeff Karstens
Career
Per 9 Inningsverified
91
1.38
John Halama
Careerverified
Per 9 Innings
2733
27
Jeff Karstens
Career
Per 9 Innings
1777
27
John Halama
Careerverified
Per 9 Innings
911
9
Jeff Karstens
Career
Per 9 Innings
592.1
9
John Halama
Careerverified
Per 9 Innings
44
0.43
Jeff Karstens
Career
Per 9 Inningsverified
42
0.64
John Halama
Careerverified
Per 9 Inningsverified
158
1.56
Jeff Karstens
Career
Per 9 Innings
67
1.02
John Halama
Career
Per 9 Innings
11
0.11
Jeff Karstens
Careerverified
Per 9 Inningsverified
6
0.09
John Halama
Careerverified
Per 9 Inningsverified
213
2.1
Jeff Karstens
Career
Per 9 Innings
115
1.75
John Halama
Careerverified
Per 9 Inningsverified
202
2
Jeff Karstens
Career
Per 9 Innings
109
1.66
John Halama
Careerverified
Per 9 Inningsverified
94.84
94.84
Jeff Karstens
Career
Per 9 Innings
94.78
94.78
John Halama
Career
Per 9 Innings
0.771
0.771
Jeff Karstens
Careerverified
Per 9 Inningsverified
0.79
0.79
John Halama
Career
Per 9 Innings
45.42
45.42
Jeff Karstens
Careerverified
Per 9 Inningsverified
65.94
65.94
John Halama
Careerverified
Per 9 Inningsverified
11
0.11
Jeff Karstens
Career
Per 9 Innings
5
0.08
John Halama
Career
Per 9 Innings
0
0
Jeff Karstens
Career
Per 9 Innings
0
0
John Halama
Career
Per 9 Innings
0
0
Jeff Karstens
Career
Per 9 Innings
0
0
John Halama
Career
Per 9 Innings
0
0
Jeff Karstens
Career
Per 9 Innings
0
0
John Halama
Career
Per 9 Innings
0
0
Jeff Karstens
Career
Per 9 Innings
0
0

Hitting Stats for John Halama and Jeff Karstens

John Halama
Careerverified
Per 600 PAverified
9
9
Jeff Karstens
Career
Per 600 PA
7
7
John Halama
Careerverified
Per 600 PAverified
262
4912.5
Jeff Karstens
Career
Per 600 PA
138
489.94
John Halama
Career
Per 600 PA
32
600
Jeff Karstens
Careerverified
Per 600 PA
169
600
John Halama
Career
Per 600 PA
26
487.5
Jeff Karstens
Careerverified
Per 600 PAverified
145
514.79
John Halama
Careerverified
Per 600 PAverified
0.115
0.115
Jeff Karstens
Career
Per 600 PA
0.09
0.09
John Halama
Careerverified
Per 600 PAverified
0.453
0.453
Jeff Karstens
Career
Per 600 PA
0.328
0.328
John Halama
Career
Per 600 PAverified
3
56.25
Jeff Karstens
Careerverified
Per 600 PA
13
46.15
John Halama
Career
Per 600 PA
2
37.5
Jeff Karstens
Careerverified
Per 600 PAverified
12
42.6
John Halama
Career
Per 600 PAverified
1
18.75
Jeff Karstens
Career
Per 600 PA
1
3.55
John Halama
Career
Per 600 PA
0
0
Jeff Karstens
Career
Per 600 PA
0
0
John Halama
Career
Per 600 PA
0
0
Jeff Karstens
Career
Per 600 PA
0
0
John Halama
Career
Per 600 PAverified
1
18.75
Jeff Karstens
Career
Per 600 PA
1
3.55
John Halama
Careerverified
Per 600 PAverified
0.333
0.333
Jeff Karstens
Career
Per 600 PA
0.077
0.077
John Halama
Career
Per 600 PA
0
0
Jeff Karstens
Career
Per 600 PA
0
0
John Halama
Career
Per 600 PA
0
0
Jeff Karstens
Career
Per 600 PA
0
0
John Halama
Career
Per 600 PAverified
0.77
14.39
Jeff Karstens
Careerverified
Per 600 PA
2.11
7.48
John Halama
Career
Per 600 PAverified
4
75
Jeff Karstens
Careerverified
Per 600 PA
14
49.7
John Halama
Career
Per 600 PAverified
6
112.5
Jeff Karstens
Careerverified
Per 600 PA
22
78.11
John Halama
Careerverified
Per 600 PAverified
0.207
0.207
Jeff Karstens
Career
Per 600 PA
0.143
0.143
John Halama
Careerverified
Per 600 PAverified
0.154
0.154
Jeff Karstens
Career
Per 600 PA
0.097
0.097
John Halama
Careerverified
Per 600 PAverified
0.361
0.361
Jeff Karstens
Career
Per 600 PA
0.24
0.24
John Halama
Careerverified
Per 600 PAverified
0.038
0.038
Jeff Karstens
Career
Per 600 PA
0.007
0.007
John Halama
Careerverified
Per 600 PAverified
0.132
0.132
Jeff Karstens
Career
Per 600 PA
0.089
0.089
John Halama
Careerverified
Per 600 PAverified
0.292
0.292
Jeff Karstens
Career
Per 600 PA
0.174
0.174
John Halama
Careerverified
Per 600 PAverified
0.214
0.214
Jeff Karstens
Career
Per 600 PA
0.197
0.197
John Halama
Career
Per 600 PAverified
2
37.5
Jeff Karstens
Careerverified
Per 600 PA
10
35.5
John Halama
Career
Per 600 PA
0
0
Jeff Karstens
Careerverified
Per 600 PAverified
4
14.2
John Halama
Career
Per 600 PA
2
37.5
Jeff Karstens
Careerverified
Per 600 PAverified
14
49.7
John Halama
Careerverified
Per 600 PAverified
0.19
3.5
Jeff Karstens
Career
Per 600 PA
-2.95
-10.49
John Halama
Career
Per 600 PA
0
0
Jeff Karstens
Careerverified
Per 600 PAverified
1
3.55
John Halama
Career
Per 600 PAverified
3
56.25
Jeff Karstens
Careerverified
Per 600 PA
8
28.4
John Halama
Career
Per 600 PA
0
0
Jeff Karstens
Career
Per 600 PA
0
0
John Halama
Careerverified
Per 600 PAverified
12
225
Jeff Karstens
Career
Per 600 PA
79
280.47
John Halama
Careerverified
Per 600 PAverified
2.67
2.67
Jeff Karstens
Career
Per 600 PA
2.14
2.14
John Halama
Careerverified
Per 600 PAverified
0.25
0.25
Jeff Karstens
Career
Per 600 PA
0.1
0.1
John Halama
Career
Per 600 PAverified
3
56.25
Jeff Karstens
Careerverified
Per 600 PA
15
53.25
John Halama
Career
Per 600 PA
0
0
Jeff Karstens
Career
Per 600 PA
0
0
John Halama
Career
Per 600 PA
1
18.75
Jeff Karstens
Careerverified
Per 600 PAverified
0
0
John Halama
Career
Per 600 PA
0
0
Jeff Karstens
Career
Per 600 PA
0
0
John Halama
Career
Per 600 PA
0
0
Jeff Karstens
Career
Per 600 PA
0
0
John Halama
Career
Per 600 PA
0
0
Jeff Karstens
Career
Per 600 PA
0
0
John Halama
Career
Per 600 PA
Jeff Karstens
Career
Per 600 PA