John Halama vs. Dave Koslo — Career Comparison

John Halama
Gen XNew YorkThrows LeftBats LeftNorth AmericaSeattle MarinersAmerican LeagueStarting Pitcher
Dave Koslo
Greatest GenerationWisconsinThrows LeftBats LeftNorth AmericaNew York GiantsNational LeagueStarting Pitcher

On the career pitching numbers, Dave Koslo posted a stronger line than John Halama. Dave Koslo posted stronger numbers in ERA (3.68 vs 4.65) and WHIP (1.342 vs 1.474). By the career numbers, Dave Koslo had the better of this comparison — though ERA and WHIP alone don't account for era, park factors, or the defenses each pitcher worked behind.

Pitching Stats for John Halama and Dave Koslo

John Halama
Career
Per 9 Innings
9
9
Dave Koslo
Careerverified
Per 9 Inningsverified
12
12
John Halama
Career
Per 9 Inningsverified
262
2.59
Dave Koslo
Careerverified
Per 9 Innings
348
1.97
John Halama
Career
Per 9 Inningsverified
119
1.18
Dave Koslo
Careerverified
Per 9 Innings
189
1.07
John Halama
Career
Per 9 Inningsverified
56
0.55
Dave Koslo
Careerverified
Per 9 Innings
92
0.52
John Halama
Careerverified
Per 9 Inningsverified
48
0.47
Dave Koslo
Career
Per 9 Innings
107
0.61
John Halama
Careerverified
Per 9 Inningsverified
53.85
53.85
Dave Koslo
Career
Per 9 Innings
46.23
46.23
John Halama
Career
Per 9 Innings
45.42
45.42
Dave Koslo
Careerverified
Per 9 Inningsverified
54.31
54.31
John Halama
Career
Per 9 Innings
2
0.02
Dave Koslo
Careerverified
Per 9 Inningsverified
74
0.42
John Halama
Career
Per 9 Innings
2
0.02
Dave Koslo
Careerverified
Per 9 Inningsverified
15
0.08
John Halama
Career
Per 9 Innings
0
0
Dave Koslo
Careerverified
Per 9 Inningsverified
22
0.12
John Halama
Careerverified
Per 9 Innings
471
4.65
Dave Koslo
Career
Per 9 Inningsverified
651
3.68
John Halama
Career
Per 9 Innings
4.65
4.65
Dave Koslo
Careerverified
Per 9 Inningsverified
3.68
3.68
John Halama
Career
Per 9 Innings
4.87
4.87
Dave Koslo
Careerverified
Per 9 Inningsverified
3.73
3.73
John Halama
Career
Per 9 Innings
4.57
4.57
Dave Koslo
Careerverified
Per 9 Inningsverified
4.28
4.28
John Halama
Career
Per 9 Innings
0.29
0.29
Dave Koslo
Careerverified
Per 9 Inningsverified
0.256
0.256
John Halama
Career
Per 9 Innings
2733
27
Dave Koslo
Careerverified
Per 9 Innings
4774
27
John Halama
Career
Per 9 Innings
911
9
Dave Koslo
Careerverified
Per 9 Innings
1591.1
9
John Halama
Careerverified
Per 9 Innings
1048
10.35
Dave Koslo
Career
Per 9 Inningsverified
1597
9.03
John Halama
Career
Per 9 Innings
10.35
10.35
Dave Koslo
Careerverified
Per 9 Inningsverified
9.03
9.03
John Halama
Careerverified
Per 9 Innings
113
1.12
Dave Koslo
Career
Per 9 Inningsverified
121
0.68
John Halama
Career
Per 9 Innings
1.12
1.12
Dave Koslo
Careerverified
Per 9 Inningsverified
0.68
0.68
John Halama
Career
Per 9 Innings
0.43
0.43
Dave Koslo
Careerverified
Per 9 Inningsverified
0.35
0.35
John Halama
Careerverified
Per 9 Inningsverified
277
2.74
Dave Koslo
Career
Per 9 Innings
538
3.04
John Halama
Career
Per 9 Innings
18
0.18
Dave Koslo
Careerverified
Per 9 Inningsverified
0
0
John Halama
Careerverified
Per 9 Inningsverified
2.74
2.74
Dave Koslo
Career
Per 9 Innings
3.04
3.04
John Halama
Career
Per 9 Inningsverified
492
4.86
Dave Koslo
Careerverified
Per 9 Innings
606
3.43
John Halama
Careerverified
Per 9 Inningsverified
4.86
4.86
Dave Koslo
Career
Per 9 Innings
3.43
3.43
John Halama
Careerverified
Per 9 Inningsverified
1.88
1.88
Dave Koslo
Career
Per 9 Innings
1.74
1.74
John Halama
Careerverified
Per 9 Inningsverified
0.844
0.844
Dave Koslo
Career
Per 9 Innings
0.719
0.719
John Halama
Careerverified
Per 9 Innings
20
0.2
Dave Koslo
Career
Per 9 Inningsverified
21
0.12
John Halama
Career
Per 9 Innings
37
0.37
Dave Koslo
Careerverified
Per 9 Inningsverified
20
0.11
John Halama
Career
Per 9 Innings
7
0.07
Dave Koslo
Careerverified
Per 9 Inningsverified
1
0.01
John Halama
Career
Per 9 Inningsverified
3996
39.48
Dave Koslo
Careerverified
Per 9 Innings
6803
38.48
John Halama
Career
Per 9 Inningsverified
58
0.57
Dave Koslo
Careerverified
Per 9 Innings
93
0.53
John Halama
Careerverified
Per 9 Innings
531
5.25
Dave Koslo
Career
Per 9 Inningsverified
740
4.19
John Halama
Career
Per 9 Innings
5.25
5.25
Dave Koslo
Careerverified
Per 9 Inningsverified
4.19
4.19
John Halama
Career
Per 9 Innings
29
0.29
Dave Koslo
Careerverified
Per 9 Inningsverified
0
0
John Halama
Career
Per 9 Innings
34
0.34
Dave Koslo
Careerverified
Per 9 Inningsverified
0
0
John Halama
Careerverified
Per 9 Inningsverified
100
0.99
Dave Koslo
Career
Per 9 Innings
0
0
John Halama
Career
Per 9 Innings
1.454
1.454
Dave Koslo
Careerverified
Per 9 Inningsverified
1.342
1.342
John Halama
Career
Per 9 Inningsverified
3619
35.75
Dave Koslo
Careerverified
Per 9 Innings
6245
35.32
John Halama
Careerverified
Per 9 Inningsverified
2.03
2.03
Dave Koslo
Career
Per 9 Innings
2.13
2.13
John Halama
Career
Per 9 Innings
0.31
0.31
Dave Koslo
Careerverified
Per 9 Inningsverified
0.268
0.268
John Halama
Careerverified
Per 9 Inningsverified
39.48
39.48
Dave Koslo
Career
Per 9 Innings
38.48
38.48

Fielding Stats for John Halama and Dave Koslo

John Halama
Career
Per 9 Innings
9
9
Dave Koslo
Careerverified
Per 9 Inningsverified
12
12
John Halama
Career
Per 9 Innings
262
2.59
Dave Koslo
Careerverified
Per 9 Inningsverified
348
98.91
John Halama
Careerverified
Per 9 Inningsverified
119
1.18
Dave Koslo
Career
Per 9 Innings
1
0.28
John Halama
Careerverified
Per 9 Innings
2733
27
Dave Koslo
Career
Per 9 Innings
95
27
John Halama
Careerverified
Per 9 Innings
911
9
Dave Koslo
Career
Per 9 Innings
31.2
9
John Halama
Career
Per 9 Innings
44
0.43
Dave Koslo
Careerverified
Per 9 Inningsverified
75
21.32
John Halama
Career
Per 9 Innings
158
1.56
Dave Koslo
Careerverified
Per 9 Inningsverified
307
87.25
John Halama
Careerverified
Per 9 Inningsverified
11
0.11
Dave Koslo
Career
Per 9 Innings
14
3.98
John Halama
Career
Per 9 Innings
213
2.1
Dave Koslo
Careerverified
Per 9 Inningsverified
396
112.55
John Halama
Career
Per 9 Innings
202
2
Dave Koslo
Careerverified
Per 9 Inningsverified
382
108.57
John Halama
Career
Per 9 Innings
94.84
94.84
Dave Koslo
Careerverified
Per 9 Inningsverified
96.46
96.46
John Halama
Career
Per 9 Innings
0.771
0.771
Dave Koslo
Careerverified
Per 9 Inningsverified
1.098
1.098
John Halama
Careerverified
Per 9 Inningsverified
45.42
45.42
Dave Koslo
Career
Per 9 Innings
0.29
0.29
John Halama
Career
Per 9 Innings
11
0.11
Dave Koslo
Careerverified
Per 9 Inningsverified
23
6.54
John Halama
Career
Per 9 Innings
0
0
Dave Koslo
Career
Per 9 Innings
0
0
John Halama
Career
Per 9 Innings
0
0
Dave Koslo
Career
Per 9 Innings
0
0
John Halama
Career
Per 9 Innings
0
0
Dave Koslo
Career
Per 9 Innings
0
0
John Halama
Career
Per 9 Innings
0
0
Dave Koslo
Career
Per 9 Innings
0
0

Hitting Stats for John Halama and Dave Koslo

John Halama
Career
Per 600 PA
9
9
Dave Koslo
Careerverified
Per 600 PAverified
12
12
John Halama
Career
Per 600 PAverified
262
4912.5
Dave Koslo
Careerverified
Per 600 PA
350
367.78
John Halama
Career
Per 600 PA
32
600
Dave Koslo
Careerverified
Per 600 PA
571
600
John Halama
Career
Per 600 PA
26
487.5
Dave Koslo
Careerverified
Per 600 PAverified
516
542.21
John Halama
Careerverified
Per 600 PAverified
0.115
0.115
Dave Koslo
Career
Per 600 PA
0.109
0.109
John Halama
Careerverified
Per 600 PAverified
0.453
0.453
Dave Koslo
Career
Per 600 PA
0.363
0.363
John Halama
Career
Per 600 PA
3
56.25
Dave Koslo
Careerverified
Per 600 PAverified
56
58.84
John Halama
Career
Per 600 PA
2
37.5
Dave Koslo
Careerverified
Per 600 PAverified
41
43.08
John Halama
Career
Per 600 PAverified
1
18.75
Dave Koslo
Careerverified
Per 600 PA
12
12.61
John Halama
Career
Per 600 PA
0
0
Dave Koslo
Career
Per 600 PA
0
0
John Halama
Career
Per 600 PA
0
0
Dave Koslo
Careerverified
Per 600 PAverified
3
3.15
John Halama
Career
Per 600 PAverified
1
18.75
Dave Koslo
Careerverified
Per 600 PA
15
15.76
John Halama
Careerverified
Per 600 PAverified
0.333
0.333
Dave Koslo
Career
Per 600 PA
0.268
0.268
John Halama
Career
Per 600 PA
0
0
Dave Koslo
Careerverified
Per 600 PAverified
0.006
0.006
John Halama
Career
Per 600 PA
0
0
Dave Koslo
Careerverified
Per 600 PAverified
0.054
0.054
John Halama
Career
Per 600 PA
0.77
14.39
Dave Koslo
Careerverified
Per 600 PAverified
14.88
15.63
John Halama
Career
Per 600 PA
4
75
Dave Koslo
Careerverified
Per 600 PAverified
77
80.91
John Halama
Career
Per 600 PAverified
6
112.5
Dave Koslo
Careerverified
Per 600 PA
93
97.72
John Halama
Careerverified
Per 600 PAverified
0.207
0.207
Dave Koslo
Career
Per 600 PA
0.168
0.168
John Halama
Careerverified
Per 600 PAverified
0.154
0.154
Dave Koslo
Career
Per 600 PA
0.149
0.149
John Halama
Careerverified
Per 600 PAverified
0.361
0.361
Dave Koslo
Career
Per 600 PA
0.317
0.317
John Halama
Career
Per 600 PA
0.038
0.038
Dave Koslo
Careerverified
Per 600 PAverified
0.041
0.041
John Halama
Careerverified
Per 600 PAverified
0.132
0.132
Dave Koslo
Career
Per 600 PA
0.113
0.113
John Halama
Careerverified
Per 600 PAverified
0.292
0.292
Dave Koslo
Career
Per 600 PA
0.247
0.247
John Halama
Careerverified
Per 600 PAverified
0.214
0.214
Dave Koslo
Career
Per 600 PA
0.182
0.182
John Halama
Career
Per 600 PAverified
2
37.5
Dave Koslo
Careerverified
Per 600 PA
31
32.57
John Halama
Career
Per 600 PA
0
0
Dave Koslo
Careerverified
Per 600 PAverified
30
31.52
John Halama
Career
Per 600 PA
2
37.5
Dave Koslo
Careerverified
Per 600 PAverified
58
60.95
John Halama
Careerverified
Per 600 PAverified
0.19
3.5
Dave Koslo
Career
Per 600 PA
-1.47
-1.54
John Halama
Career
Per 600 PA
0
0
Dave Koslo
Careerverified
Per 600 PAverified
1
1.05
John Halama
Career
Per 600 PAverified
3
56.25
Dave Koslo
Careerverified
Per 600 PA
36
37.83
John Halama
Career
Per 600 PA
0
0
Dave Koslo
Career
Per 600 PA
0
0
John Halama
Careerverified
Per 600 PAverified
12
225
Dave Koslo
Career
Per 600 PA
222
233.27
John Halama
Careerverified
Per 600 PAverified
2.67
2.67
Dave Koslo
Career
Per 600 PA
2.57
2.57
John Halama
Careerverified
Per 600 PAverified
0.25
0.25
Dave Koslo
Career
Per 600 PA
0.16
0.16
John Halama
Career
Per 600 PAverified
3
56.25
Dave Koslo
Careerverified
Per 600 PA
18
18.91
John Halama
Career
Per 600 PA
0
0
Dave Koslo
Career
Per 600 PA
0
0
John Halama
Careerverified
Per 600 PA
1
18.75
Dave Koslo
Career
Per 600 PAverified
5
5.25
John Halama
Career
Per 600 PA
0
0
Dave Koslo
Careerverified
Per 600 PAverified
1
1.05
John Halama
Career
Per 600 PA
0
0
Dave Koslo
Careerverified
Per 600 PAverified
1
1.05
John Halama
Career
Per 600 PA
0
0
Dave Koslo
Careerverified
Per 600 PAverified
2
2.1
John Halama
Career
Per 600 PA
Dave Koslo
Careerverified
Per 600 PAverified
50
50