John Halama vs. Robb Nen — Career Comparison

John Halama
Gen XNew YorkThrows LeftBats LeftNorth AmericaSeattle MarinersAmerican LeagueStarting Pitcher
Robb Nen
Gen XCaliforniaThrows RightBats RightNorth AmericaSan Francisco GiantsNational LeagueRelief PitcherAll-Star

John Halama built a career as a starting pitcher and Robb Nen as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Robb Nen led in strikeout rate (K%+ 126 vs 76), skill-based run prevention (DICE+ 116 vs 96), and home run suppression (HR9+ 105 vs 97). John Halama held the edge in walk avoidance (BB%+ 129 vs 102). Role difference aside, Robb Nen holds a clear edge on every meaningful shared measure.

Pitching Stats for John Halama and Robb Nen

John Halama
Career
Per 9 Innings
9
9
Robb Nen
Careerverified
Per 9 Inningsverified
10
10
John Halama
Career
Per 9 Innings
262
2.59
Robb Nen
Careerverified
Per 9 Inningsverified
643
8.09
John Halama
Careerverified
Per 9 Inningsverified
119
1.18
Robb Nen
Career
Per 9 Innings
4
0.05
John Halama
Careerverified
Per 9 Innings
56
0.55
Robb Nen
Career
Per 9 Inningsverified
45
0.57
John Halama
Career
Per 9 Inningsverified
48
0.47
Robb Nen
Careerverified
Per 9 Innings
42
0.53
John Halama
Careerverified
Per 9 Inningsverified
53.85
53.85
Robb Nen
Career
Per 9 Innings
51.72
51.72
John Halama
Careerverified
Per 9 Inningsverified
45.42
45.42
Robb Nen
Career
Per 9 Innings
0.62
0.62
John Halama
Careerverified
Per 9 Inningsverified
2
0.02
Robb Nen
Career
Per 9 Innings
0
0
John Halama
Careerverified
Per 9 Inningsverified
2
0.02
Robb Nen
Career
Per 9 Innings
0
0
John Halama
Career
Per 9 Innings
0
0
Robb Nen
Careerverified
Per 9 Inningsverified
314
3.95
John Halama
Career
Per 9 Innings
471
4.65
Robb Nen
Careerverified
Per 9 Inningsverified
237
2.98
John Halama
Career
Per 9 Innings
4.65
4.65
Robb Nen
Careerverified
Per 9 Inningsverified
2.98
2.98
John Halama
Career
Per 9 Innings
4.87
4.87
Robb Nen
Careerverified
Per 9 Inningsverified
2.87
2.87
John Halama
Career
Per 9 Innings
4.57
4.57
Robb Nen
Careerverified
Per 9 Inningsverified
2.83
2.83
John Halama
Career
Per 9 Innings
0.29
0.29
Robb Nen
Careerverified
Per 9 Inningsverified
0.227
0.227
John Halama
Careerverified
Per 9 Innings
2733
27
Robb Nen
Career
Per 9 Innings
2145
27
John Halama
Careerverified
Per 9 Innings
911
9
Robb Nen
Career
Per 9 Innings
715
9
John Halama
Career
Per 9 Innings
1048
10.35
Robb Nen
Careerverified
Per 9 Inningsverified
607
7.64
John Halama
Career
Per 9 Innings
10.35
10.35
Robb Nen
Careerverified
Per 9 Inningsverified
7.64
7.64
John Halama
Career
Per 9 Innings
113
1.12
Robb Nen
Careerverified
Per 9 Inningsverified
51
0.64
John Halama
Career
Per 9 Innings
1.12
1.12
Robb Nen
Careerverified
Per 9 Inningsverified
0.64
0.64
John Halama
Career
Per 9 Innings
0.43
0.43
Robb Nen
Careerverified
Per 9 Inningsverified
0.08
0.08
John Halama
Career
Per 9 Inningsverified
277
2.74
Robb Nen
Careerverified
Per 9 Innings
260
3.27
John Halama
Careerverified
Per 9 Inningsverified
18
0.18
Robb Nen
Career
Per 9 Innings
41
0.52
John Halama
Careerverified
Per 9 Inningsverified
2.74
2.74
Robb Nen
Career
Per 9 Innings
3.27
3.27
John Halama
Career
Per 9 Innings
492
4.86
Robb Nen
Careerverified
Per 9 Inningsverified
793
9.98
John Halama
Career
Per 9 Innings
4.86
4.86
Robb Nen
Careerverified
Per 9 Inningsverified
9.98
9.98
John Halama
Careerverified
Per 9 Inningsverified
1.88
1.88
Robb Nen
Career
Per 9 Innings
1.23
1.23
John Halama
Career
Per 9 Innings
0.844
0.844
Robb Nen
Careerverified
Per 9 Inningsverified
1.473
1.473
John Halama
Careerverified
Per 9 Inningsverified
20
0.2
Robb Nen
Career
Per 9 Innings
36
0.45
John Halama
Career
Per 9 Innings
37
0.37
Robb Nen
Careerverified
Per 9 Inningsverified
7
0.09
John Halama
Career
Per 9 Innings
7
0.07
Robb Nen
Careerverified
Per 9 Inningsverified
3
0.04
John Halama
Careerverified
Per 9 Inningsverified
3996
39.48
Robb Nen
Career
Per 9 Innings
2983
37.55
John Halama
Career
Per 9 Innings
58
0.57
Robb Nen
Careerverified
Per 9 Inningsverified
549
6.91
John Halama
Career
Per 9 Innings
531
5.25
Robb Nen
Careerverified
Per 9 Inningsverified
266
3.35
John Halama
Career
Per 9 Innings
5.25
5.25
Robb Nen
Careerverified
Per 9 Inningsverified
3.35
3.35
John Halama
Career
Per 9 Inningsverified
29
0.29
Robb Nen
Careerverified
Per 9 Innings
25
0.31
John Halama
Career
Per 9 Innings
34
0.34
Robb Nen
Careerverified
Per 9 Inningsverified
17
0.21
John Halama
Careerverified
Per 9 Inningsverified
100
0.99
Robb Nen
Career
Per 9 Innings
52
0.65
John Halama
Career
Per 9 Innings
1.454
1.454
Robb Nen
Careerverified
Per 9 Inningsverified
1.213
1.213
John Halama
Careerverified
Per 9 Inningsverified
3619
35.75
Robb Nen
Career
Per 9 Innings
2674
33.66
John Halama
Career
Per 9 Innings
2.03
2.03
Robb Nen
Careerverified
Per 9 Inningsverified
0.41
0.41
John Halama
Career
Per 9 Innings
0.31
0.31
Robb Nen
Careerverified
Per 9 Inningsverified
0.304
0.304
John Halama
Careerverified
Per 9 Inningsverified
39.48
39.48
Robb Nen
Career
Per 9 Innings
37.55
37.55

Fielding Stats for John Halama and Robb Nen

John Halama
Career
Per 9 Innings
9
9
Robb Nen
Careerverified
Per 9 Inningsverified
10
10
John Halama
Career
Per 9 Innings
262
2.59
Robb Nen
Careerverified
Per 9 Inningsverified
643
8.09
John Halama
Careerverified
Per 9 Inningsverified
119
1.18
Robb Nen
Career
Per 9 Innings
4
0.05
John Halama
Careerverified
Per 9 Innings
2733
27
Robb Nen
Career
Per 9 Innings
2145
27
John Halama
Careerverified
Per 9 Innings
911
9
Robb Nen
Career
Per 9 Innings
715
9
John Halama
Career
Per 9 Innings
44
0.43
Robb Nen
Career
Per 9 Inningsverified
44
0.55
John Halama
Careerverified
Per 9 Inningsverified
158
1.56
Robb Nen
Career
Per 9 Innings
69
0.87
John Halama
Career
Per 9 Innings
11
0.11
Robb Nen
Careerverified
Per 9 Inningsverified
7
0.09
John Halama
Careerverified
Per 9 Inningsverified
213
2.1
Robb Nen
Career
Per 9 Innings
120
1.51
John Halama
Careerverified
Per 9 Inningsverified
202
2
Robb Nen
Career
Per 9 Innings
113
1.42
John Halama
Careerverified
Per 9 Inningsverified
94.84
94.84
Robb Nen
Career
Per 9 Innings
94.17
94.17
John Halama
Careerverified
Per 9 Inningsverified
0.771
0.771
Robb Nen
Career
Per 9 Innings
0.176
0.176
John Halama
Careerverified
Per 9 Inningsverified
45.42
45.42
Robb Nen
Career
Per 9 Innings
0.62
0.62
John Halama
Careerverified
Per 9 Inningsverified
11
0.11
Robb Nen
Career
Per 9 Innings
8
0.1
John Halama
Career
Per 9 Innings
0
0
Robb Nen
Career
Per 9 Innings
0
0
John Halama
Career
Per 9 Innings
0
0
Robb Nen
Career
Per 9 Innings
0
0
John Halama
Career
Per 9 Innings
0
0
Robb Nen
Career
Per 9 Innings
0
0
John Halama
Career
Per 9 Innings
0
0
Robb Nen
Career
Per 9 Innings
0
0

Hitting Stats for John Halama and Robb Nen

John Halama
Career
Per 600 PA
9
9
Robb Nen
Careerverified
Per 600 PAverified
10
10
John Halama
Career
Per 600 PA
262
4912.5
Robb Nen
Careerverified
Per 600 PAverified
643
25720
John Halama
Careerverified
Per 600 PA
32
600
Robb Nen
Career
Per 600 PA
15
600
John Halama
Careerverified
Per 600 PA
26
487.5
Robb Nen
Career
Per 600 PAverified
15
600
John Halama
Careerverified
Per 600 PAverified
0.115
0.115
Robb Nen
Career
Per 600 PA
0.067
0.067
John Halama
Careerverified
Per 600 PAverified
0.453
0.453
Robb Nen
Career
Per 600 PA
0.133
0.133
John Halama
Careerverified
Per 600 PAverified
3
56.25
Robb Nen
Career
Per 600 PA
1
40
John Halama
Careerverified
Per 600 PA
2
37.5
Robb Nen
Career
Per 600 PAverified
1
40
John Halama
Careerverified
Per 600 PAverified
1
18.75
Robb Nen
Career
Per 600 PA
0
0
John Halama
Career
Per 600 PA
0
0
Robb Nen
Career
Per 600 PA
0
0
John Halama
Career
Per 600 PA
0
0
Robb Nen
Career
Per 600 PA
0
0
John Halama
Careerverified
Per 600 PAverified
1
18.75
Robb Nen
Career
Per 600 PA
0
0
John Halama
Careerverified
Per 600 PAverified
0.333
0.333
Robb Nen
Career
Per 600 PA
0
0
John Halama
Career
Per 600 PA
0
0
Robb Nen
Career
Per 600 PA
0
0
John Halama
Career
Per 600 PA
0
0
Robb Nen
Career
Per 600 PA
0
0
John Halama
Careerverified
Per 600 PAverified
0.77
14.39
Robb Nen
Career
Per 600 PA
0.06
2.37
John Halama
Careerverified
Per 600 PAverified
4
75
Robb Nen
Career
Per 600 PA
1
40
John Halama
Careerverified
Per 600 PAverified
6
112.5
Robb Nen
Career
Per 600 PA
1
40
John Halama
Careerverified
Per 600 PAverified
0.207
0.207
Robb Nen
Career
Per 600 PA
0.067
0.067
John Halama
Careerverified
Per 600 PAverified
0.154
0.154
Robb Nen
Career
Per 600 PA
0.067
0.067
John Halama
Careerverified
Per 600 PAverified
0.361
0.361
Robb Nen
Career
Per 600 PA
0.133
0.133
John Halama
Careerverified
Per 600 PAverified
0.038
0.038
Robb Nen
Career
Per 600 PA
0
0
John Halama
Careerverified
Per 600 PAverified
0.132
0.132
Robb Nen
Career
Per 600 PA
0.047
0.047
John Halama
Careerverified
Per 600 PAverified
0.292
0.292
Robb Nen
Career
Per 600 PA
0.071
0.071
John Halama
Careerverified
Per 600 PAverified
0.214
0.214
Robb Nen
Career
Per 600 PA
0.091
0.091
John Halama
Careerverified
Per 600 PAverified
2
37.5
Robb Nen
Career
Per 600 PA
0
0
John Halama
Career
Per 600 PA
0
0
Robb Nen
Career
Per 600 PA
0
0
John Halama
Careerverified
Per 600 PAverified
2
37.5
Robb Nen
Career
Per 600 PA
0
0
John Halama
Careerverified
Per 600 PAverified
0.19
3.5
Robb Nen
Career
Per 600 PA
-0.87
-34.72
John Halama
Career
Per 600 PA
0
0
Robb Nen
Career
Per 600 PA
0
0
John Halama
Careerverified
Per 600 PAverified
3
56.25
Robb Nen
Career
Per 600 PA
0
0
John Halama
Career
Per 600 PA
0
0
Robb Nen
Career
Per 600 PA
0
0
John Halama
Career
Per 600 PA
12
225
Robb Nen
Careerverified
Per 600 PAverified
4
160
John Halama
Career
Per 600 PA
2.67
2.67
Robb Nen
Careerverified
Per 600 PAverified
3.75
3.75
John Halama
Careerverified
Per 600 PAverified
0.25
0.25
Robb Nen
Career
Per 600 PA
0
0
John Halama
Careerverified
Per 600 PAverified
3
56.25
Robb Nen
Career
Per 600 PA
0
0
John Halama
Career
Per 600 PA
0
0
Robb Nen
Career
Per 600 PA
0
0
John Halama
Career
Per 600 PA
1
18.75
Robb Nen
Careerverified
Per 600 PAverified
0
0
John Halama
Career
Per 600 PA
0
0
Robb Nen
Career
Per 600 PA
0
0
John Halama
Career
Per 600 PA
0
0
Robb Nen
Career
Per 600 PA
0
0
John Halama
Career
Per 600 PA
0
0
Robb Nen
Career
Per 600 PA
0
0
John Halama
Career
Per 600 PA
Robb Nen
Career
Per 600 PA