Sean Doolittle vs. John Halama — Career Comparison

Sean Doolittle
MillenialSouth DakotaThrows LeftBats LeftNorth AmericaOakland AthleticsAmerican LeagueRelief PitcherAll-Star
John Halama
Gen XNew YorkThrows LeftBats LeftNorth AmericaSeattle MarinersAmerican LeagueStarting Pitcher

John Halama built a career as a starting pitcher and Sean Doolittle as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Sean Doolittle led in strikeout rate (K%+ 114 vs 76), walk avoidance (BB%+ 161 vs 129), and skill-based run prevention (DICE+ 126 vs 96). Role difference aside, Sean Doolittle holds a clear edge on every meaningful shared measure.

Pitching Stats for Sean Doolittle and John Halama

Sean Doolittle
Careerverified
Per 9 Inningsverified
11
11
John Halama
Career
Per 9 Innings
9
9
Sean Doolittle
Careerverified
Per 9 Inningsverified
463
9.25
John Halama
Career
Per 9 Innings
262
2.59
Sean Doolittle
Career
Per 9 Innings
0
0
John Halama
Careerverified
Per 9 Inningsverified
119
1.18
Sean Doolittle
Career
Per 9 Innings
26
0.52
John Halama
Careerverified
Per 9 Inningsverified
56
0.55
Sean Doolittle
Careerverified
Per 9 Innings
24
0.48
John Halama
Career
Per 9 Inningsverified
48
0.47
Sean Doolittle
Career
Per 9 Innings
52
52
John Halama
Careerverified
Per 9 Inningsverified
53.85
53.85
Sean Doolittle
Career
Per 9 Innings
0
0
John Halama
Careerverified
Per 9 Inningsverified
45.42
45.42
Sean Doolittle
Career
Per 9 Innings
0
0
John Halama
Careerverified
Per 9 Inningsverified
2
0.02
Sean Doolittle
Career
Per 9 Innings
0
0
John Halama
Careerverified
Per 9 Inningsverified
2
0.02
Sean Doolittle
Careerverified
Per 9 Inningsverified
112
2.24
John Halama
Career
Per 9 Innings
0
0
Sean Doolittle
Careerverified
Per 9 Inningsverified
160
3.2
John Halama
Career
Per 9 Innings
471
4.65
Sean Doolittle
Careerverified
Per 9 Inningsverified
3.2
3.2
John Halama
Career
Per 9 Innings
4.65
4.65
Sean Doolittle
Careerverified
Per 9 Inningsverified
2.36
2.36
John Halama
Career
Per 9 Innings
4.87
4.87
Sean Doolittle
Careerverified
Per 9 Inningsverified
2.81
2.81
John Halama
Career
Per 9 Innings
4.57
4.57
Sean Doolittle
Careerverified
Per 9 Inningsverified
0.213
0.213
John Halama
Career
Per 9 Innings
0.29
0.29
Sean Doolittle
Career
Per 9 Innings
1352
27
John Halama
Careerverified
Per 9 Innings
2733
27
Sean Doolittle
Career
Per 9 Innings
450.2
9
John Halama
Careerverified
Per 9 Innings
911
9
Sean Doolittle
Careerverified
Per 9 Inningsverified
354
7.07
John Halama
Career
Per 9 Innings
1048
10.35
Sean Doolittle
Careerverified
Per 9 Inningsverified
7.07
7.07
John Halama
Career
Per 9 Innings
10.35
10.35
Sean Doolittle
Careerverified
Per 9 Inningsverified
48
0.96
John Halama
Career
Per 9 Innings
113
1.12
Sean Doolittle
Careerverified
Per 9 Inningsverified
0.96
0.96
John Halama
Career
Per 9 Innings
1.12
1.12
Sean Doolittle
Careerverified
Per 9 Inningsverified
0.1
0.1
John Halama
Career
Per 9 Innings
0.43
0.43
Sean Doolittle
Careerverified
Per 9 Inningsverified
103
2.06
John Halama
Career
Per 9 Innings
277
2.74
Sean Doolittle
Careerverified
Per 9 Innings
14
0.28
John Halama
Career
Per 9 Inningsverified
18
0.18
Sean Doolittle
Careerverified
Per 9 Inningsverified
2.06
2.06
John Halama
Career
Per 9 Innings
2.74
2.74
Sean Doolittle
Careerverified
Per 9 Inningsverified
522
10.42
John Halama
Career
Per 9 Innings
492
4.86
Sean Doolittle
Careerverified
Per 9 Inningsverified
10.42
10.42
John Halama
Career
Per 9 Innings
4.86
4.86
Sean Doolittle
Career
Per 9 Innings
1.13
1.13
John Halama
Careerverified
Per 9 Inningsverified
1.88
1.88
Sean Doolittle
Careerverified
Per 9 Inningsverified
1.387
1.387
John Halama
Career
Per 9 Innings
0.844
0.844
Sean Doolittle
Careerverified
Per 9 Inningsverified
9
0.18
John Halama
Career
Per 9 Innings
20
0.2
Sean Doolittle
Careerverified
Per 9 Inningsverified
8
0.16
John Halama
Career
Per 9 Innings
37
0.37
Sean Doolittle
Careerverified
Per 9 Inningsverified
0
0
John Halama
Career
Per 9 Innings
7
0.07
Sean Doolittle
Career
Per 9 Innings
1801
35.97
John Halama
Careerverified
Per 9 Inningsverified
3996
39.48
Sean Doolittle
Careerverified
Per 9 Inningsverified
218
4.35
John Halama
Career
Per 9 Innings
58
0.57
Sean Doolittle
Careerverified
Per 9 Inningsverified
167
3.34
John Halama
Career
Per 9 Innings
531
5.25
Sean Doolittle
Careerverified
Per 9 Inningsverified
3.34
3.34
John Halama
Career
Per 9 Innings
5.25
5.25
Sean Doolittle
Careerverified
Per 9 Innings
15
0.3
John Halama
Career
Per 9 Inningsverified
29
0.29
Sean Doolittle
Careerverified
Per 9 Inningsverified
10
0.2
John Halama
Career
Per 9 Innings
34
0.34
Sean Doolittle
Career
Per 9 Innings
11
0.22
John Halama
Careerverified
Per 9 Inningsverified
100
0.99
Sean Doolittle
Careerverified
Per 9 Inningsverified
1.014
1.014
John Halama
Career
Per 9 Innings
1.454
1.454
Sean Doolittle
Career
Per 9 Innings
1665
33.25
John Halama
Careerverified
Per 9 Inningsverified
3619
35.75
Sean Doolittle
Careerverified
Per 9 Inningsverified
0.36
0.36
John Halama
Career
Per 9 Innings
2.03
2.03
Sean Doolittle
Careerverified
Per 9 Inningsverified
0.28
0.28
John Halama
Career
Per 9 Innings
0.31
0.31
Sean Doolittle
Career
Per 9 Innings
35.97
35.97
John Halama
Careerverified
Per 9 Inningsverified
39.48
39.48

Fielding Stats for Sean Doolittle and John Halama

Sean Doolittle
Careerverified
Per 9 Inningsverified
11
11
John Halama
Career
Per 9 Innings
9
9
Sean Doolittle
Careerverified
Per 9 Inningsverified
463
9.25
John Halama
Career
Per 9 Innings
262
2.59
Sean Doolittle
Career
Per 9 Innings
0
0
John Halama
Careerverified
Per 9 Inningsverified
119
1.18
Sean Doolittle
Career
Per 9 Innings
1352
27
John Halama
Careerverified
Per 9 Innings
2733
27
Sean Doolittle
Career
Per 9 Innings
450.2
9
John Halama
Careerverified
Per 9 Innings
911
9
Sean Doolittle
Career
Per 9 Innings
9
0.18
John Halama
Careerverified
Per 9 Inningsverified
44
0.43
Sean Doolittle
Career
Per 9 Innings
28
0.56
John Halama
Careerverified
Per 9 Inningsverified
158
1.56
Sean Doolittle
Careerverified
Per 9 Inningsverified
2
0.04
John Halama
Career
Per 9 Innings
11
0.11
Sean Doolittle
Career
Per 9 Innings
39
0.78
John Halama
Careerverified
Per 9 Inningsverified
213
2.1
Sean Doolittle
Career
Per 9 Innings
37
0.74
John Halama
Careerverified
Per 9 Inningsverified
202
2
Sean Doolittle
Careerverified
Per 9 Inningsverified
94.87
94.87
John Halama
Career
Per 9 Innings
94.84
94.84
Sean Doolittle
Career
Per 9 Innings
0.08
0.08
John Halama
Careerverified
Per 9 Inningsverified
0.771
0.771
Sean Doolittle
Career
Per 9 Innings
0
0
John Halama
Careerverified
Per 9 Inningsverified
45.42
45.42
Sean Doolittle
Career
Per 9 Innings
2
0.04
John Halama
Careerverified
Per 9 Inningsverified
11
0.11
Sean Doolittle
Career
Per 9 Innings
0
0
John Halama
Career
Per 9 Innings
0
0
Sean Doolittle
Career
Per 9 Innings
0
0
John Halama
Career
Per 9 Innings
0
0
Sean Doolittle
Career
Per 9 Innings
0
0
John Halama
Career
Per 9 Innings
0
0
Sean Doolittle
Career
Per 9 Innings
0
0
John Halama
Career
Per 9 Innings
0
0

Hitting Stats for Sean Doolittle and John Halama

Sean Doolittle
Careerverified
Per 600 PAverified
11
11
John Halama
Career
Per 600 PA
9
9
Sean Doolittle
Careerverified
Per 600 PAverified
464
69600
John Halama
Career
Per 600 PA
262
4912.5
Sean Doolittle
Career
Per 600 PA
4
600
John Halama
Careerverified
Per 600 PA
32
600
Sean Doolittle
Career
Per 600 PAverified
4
600
John Halama
Careerverified
Per 600 PA
26
487.5
Sean Doolittle
Career
Per 600 PA
0
0
John Halama
Careerverified
Per 600 PAverified
0.115
0.115
Sean Doolittle
Career
Per 600 PA
0
0
John Halama
Careerverified
Per 600 PAverified
0.453
0.453
Sean Doolittle
Career
Per 600 PA
0
0
John Halama
Careerverified
Per 600 PAverified
3
56.25
Sean Doolittle
Career
Per 600 PA
0
0
John Halama
Careerverified
Per 600 PAverified
2
37.5
Sean Doolittle
Career
Per 600 PA
0
0
John Halama
Careerverified
Per 600 PAverified
1
18.75
Sean Doolittle
Career
Per 600 PA
0
0
John Halama
Career
Per 600 PA
0
0
Sean Doolittle
Career
Per 600 PA
0
0
John Halama
Career
Per 600 PA
0
0
Sean Doolittle
Career
Per 600 PA
0
0
John Halama
Careerverified
Per 600 PAverified
1
18.75
Sean Doolittle
Career
Per 600 PA
John Halama
Careerverified
Per 600 PAverified
0.333
0.333
Sean Doolittle
Career
Per 600 PA
0
0
John Halama
Career
Per 600 PA
0
0
Sean Doolittle
Career
Per 600 PA
John Halama
Career
Per 600 PA
0
0
Sean Doolittle
Career
Per 600 PA
0
0
John Halama
Careerverified
Per 600 PAverified
0.77
14.39
Sean Doolittle
Career
Per 600 PA
0
0
John Halama
Careerverified
Per 600 PAverified
4
75
Sean Doolittle
Career
Per 600 PA
0
0
John Halama
Careerverified
Per 600 PAverified
6
112.5
Sean Doolittle
Career
Per 600 PA
0
0
John Halama
Careerverified
Per 600 PAverified
0.207
0.207
Sean Doolittle
Career
Per 600 PA
0
0
John Halama
Careerverified
Per 600 PAverified
0.154
0.154
Sean Doolittle
Career
Per 600 PA
0
0
John Halama
Careerverified
Per 600 PAverified
0.361
0.361
Sean Doolittle
Career
Per 600 PA
0
0
John Halama
Careerverified
Per 600 PAverified
0.038
0.038
Sean Doolittle
Career
Per 600 PA
0
0
John Halama
Careerverified
Per 600 PAverified
0.132
0.132
Sean Doolittle
Career
Per 600 PA
0
0
John Halama
Careerverified
Per 600 PAverified
0.292
0.292
Sean Doolittle
Career
Per 600 PA
0
0
John Halama
Careerverified
Per 600 PAverified
0.214
0.214
Sean Doolittle
Career
Per 600 PA
0
0
John Halama
Careerverified
Per 600 PAverified
2
37.5
Sean Doolittle
Career
Per 600 PA
0
0
John Halama
Career
Per 600 PA
0
0
Sean Doolittle
Career
Per 600 PA
0
0
John Halama
Careerverified
Per 600 PAverified
2
37.5
Sean Doolittle
Career
Per 600 PA
-0.75
-112.87
John Halama
Careerverified
Per 600 PAverified
0.19
3.5
Sean Doolittle
Career
Per 600 PA
0
0
John Halama
Career
Per 600 PA
0
0
Sean Doolittle
Career
Per 600 PA
0
0
John Halama
Careerverified
Per 600 PAverified
3
56.25
Sean Doolittle
Career
Per 600 PA
0
0
John Halama
Career
Per 600 PA
0
0
Sean Doolittle
Careerverified
Per 600 PA
2
300
John Halama
Career
Per 600 PAverified
12
225
Sean Doolittle
Career
Per 600 PA
2
2
John Halama
Careerverified
Per 600 PAverified
2.67
2.67
Sean Doolittle
Career
Per 600 PA
0
0
John Halama
Careerverified
Per 600 PAverified
0.25
0.25
Sean Doolittle
Career
Per 600 PA
0
0
John Halama
Careerverified
Per 600 PAverified
3
56.25
Sean Doolittle
Career
Per 600 PA
0
0
John Halama
Career
Per 600 PA
0
0
Sean Doolittle
Career
Per 600 PA
1
150
John Halama
Career
Per 600 PAverified
1
18.75
Sean Doolittle
Career
Per 600 PA
0
0
John Halama
Career
Per 600 PA
0
0
Sean Doolittle
Career
Per 600 PA
0
0
John Halama
Career
Per 600 PA
0
0
Sean Doolittle
Career
Per 600 PA
0
0
John Halama
Career
Per 600 PA
0
0
Sean Doolittle
Career
Per 600 PA
John Halama
Career
Per 600 PA