Justin Masterson vs. Willis Roberts — Career Comparison

Justin Masterson
MillenialJamaicaThrows RightBats RightCaribbeanCleveland GuardiansAmerican LeagueStarting PitcherAll-Star
Willis Roberts
Gen XD.R.Throws RightBats RightCaribbeanBaltimore OriolesAmerican LeagueRelief Pitcher

Justin Masterson built a career as a starting pitcher and Willis Roberts as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Justin Masterson led in home run suppression (HR9+ 143 vs 113), strikeout rate (K%+ 110 vs 87), and skill-based run prevention (DICE+ 105 vs 94). Willis Roberts held the edge in walk avoidance (BB%+ 100 vs 77). Keeping the role difference in mind, the edge still goes to Justin Masterson.

Pitching Stats for Justin Masterson and Willis Roberts

Justin Masterson
Careerverified
Per 9 Inningsverified
8
8
Willis Roberts
Career
Per 9 Innings
5
5
Justin Masterson
Careerverified
Per 9 Innings
258
1.93
Willis Roberts
Career
Per 9 Inningsverified
148
5.13
Justin Masterson
Careerverified
Per 9 Inningsverified
184
1.38
Willis Roberts
Career
Per 9 Innings
18
0.62
Justin Masterson
Careerverified
Per 9 Innings
64
0.48
Willis Roberts
Career
Per 9 Inningsverified
17
0.59
Justin Masterson
Career
Per 9 Innings
74
0.55
Willis Roberts
Careerverified
Per 9 Inningsverified
15
0.52
Justin Masterson
Career
Per 9 Innings
46.38
46.38
Willis Roberts
Careerverified
Per 9 Inningsverified
53.13
53.13
Justin Masterson
Careerverified
Per 9 Inningsverified
71.32
71.32
Willis Roberts
Career
Per 9 Innings
12.16
12.16
Justin Masterson
Careerverified
Per 9 Inningsverified
7
0.05
Willis Roberts
Career
Per 9 Innings
1
0.03
Justin Masterson
Careerverified
Per 9 Inningsverified
4
0.03
Willis Roberts
Career
Per 9 Innings
0
0
Justin Masterson
Career
Per 9 Innings
0
0
Willis Roberts
Careerverified
Per 9 Inningsverified
7
0.24
Justin Masterson
Career
Per 9 Inningsverified
575
4.31
Willis Roberts
Careerverified
Per 9 Innings
134
4.64
Justin Masterson
Careerverified
Per 9 Inningsverified
4.31
4.31
Willis Roberts
Career
Per 9 Innings
4.64
4.64
Justin Masterson
Careerverified
Per 9 Inningsverified
4.22
4.22
Willis Roberts
Career
Per 9 Innings
4.97
4.97
Justin Masterson
Careerverified
Per 9 Inningsverified
3.85
3.85
Willis Roberts
Career
Per 9 Innings
4.56
4.56
Justin Masterson
Careerverified
Per 9 Inningsverified
0.259
0.259
Willis Roberts
Career
Per 9 Innings
0.274
0.274
Justin Masterson
Careerverified
Per 9 Innings
3603
27
Willis Roberts
Career
Per 9 Innings
779
27
Justin Masterson
Careerverified
Per 9 Innings
1201
9
Willis Roberts
Career
Per 9 Innings
259.2
9
Justin Masterson
Career
Per 9 Inningsverified
1181
8.85
Willis Roberts
Careerverified
Per 9 Innings
277
9.6
Justin Masterson
Careerverified
Per 9 Inningsverified
8.85
8.85
Willis Roberts
Career
Per 9 Innings
9.6
9.6
Justin Masterson
Career
Per 9 Inningsverified
97
0.73
Willis Roberts
Careerverified
Per 9 Innings
27
0.94
Justin Masterson
Careerverified
Per 9 Inningsverified
0.73
0.73
Willis Roberts
Career
Per 9 Innings
0.94
0.94
Justin Masterson
Career
Per 9 Innings
0.38
0.38
Willis Roberts
Careerverified
Per 9 Inningsverified
0.18
0.18
Justin Masterson
Career
Per 9 Inningsverified
498
3.73
Willis Roberts
Careerverified
Per 9 Innings
112
3.88
Justin Masterson
Career
Per 9 Inningsverified
17
0.13
Willis Roberts
Careerverified
Per 9 Innings
6
0.21
Justin Masterson
Careerverified
Per 9 Inningsverified
3.73
3.73
Willis Roberts
Career
Per 9 Innings
3.88
3.88
Justin Masterson
Careerverified
Per 9 Inningsverified
1004
7.52
Willis Roberts
Career
Per 9 Innings
179
6.2
Justin Masterson
Careerverified
Per 9 Inningsverified
7.52
7.52
Willis Roberts
Career
Per 9 Innings
6.2
6.2
Justin Masterson
Careerverified
Per 9 Inningsverified
3.89
3.89
Willis Roberts
Career
Per 9 Innings
1.21
1.21
Justin Masterson
Careerverified
Per 9 Inningsverified
1.251
1.251
Willis Roberts
Career
Per 9 Innings
1.121
1.121
Justin Masterson
Career
Per 9 Innings
66
0.49
Willis Roberts
Careerverified
Per 9 Inningsverified
13
0.45
Justin Masterson
Career
Per 9 Inningsverified
93
0.7
Willis Roberts
Careerverified
Per 9 Innings
25
0.87
Justin Masterson
Careerverified
Per 9 Inningsverified
1
0.01
Willis Roberts
Career
Per 9 Innings
2
0.07
Justin Masterson
Careerverified
Per 9 Innings
5217
39.09
Willis Roberts
Career
Per 9 Inningsverified
1165
40.38
Justin Masterson
Career
Per 9 Innings
17
0.13
Willis Roberts
Careerverified
Per 9 Inningsverified
54
1.87
Justin Masterson
Career
Per 9 Inningsverified
625
4.68
Willis Roberts
Careerverified
Per 9 Innings
146
5.06
Justin Masterson
Careerverified
Per 9 Inningsverified
4.68
4.68
Willis Roberts
Career
Per 9 Innings
5.06
5.06
Justin Masterson
Career
Per 9 Innings
40
0.3
Willis Roberts
Careerverified
Per 9 Inningsverified
7
0.24
Justin Masterson
Career
Per 9 Inningsverified
32
0.24
Willis Roberts
Careerverified
Per 9 Innings
11
0.38
Justin Masterson
Careerverified
Per 9 Inningsverified
137
1.03
Willis Roberts
Career
Per 9 Innings
21
0.73
Justin Masterson
Careerverified
Per 9 Inningsverified
1.398
1.398
Willis Roberts
Career
Per 9 Innings
1.498
1.498
Justin Masterson
Careerverified
Per 9 Innings
4554
34.13
Willis Roberts
Career
Per 9 Inningsverified
1010
35.01
Justin Masterson
Career
Per 9 Innings
2.42
2.42
Willis Roberts
Careerverified
Per 9 Inningsverified
0.99
0.99
Justin Masterson
Career
Per 9 Innings
0.314
0.314
Willis Roberts
Careerverified
Per 9 Inningsverified
0.311
0.311
Justin Masterson
Career
Per 9 Innings
39.09
39.09
Willis Roberts
Careerverified
Per 9 Inningsverified
40.38
40.38

Fielding Stats for Justin Masterson and Willis Roberts

Justin Masterson
Careerverified
Per 9 Inningsverified
8
8
Willis Roberts
Career
Per 9 Innings
5
5
Justin Masterson
Careerverified
Per 9 Innings
258
1.93
Willis Roberts
Career
Per 9 Inningsverified
148
5.13
Justin Masterson
Careerverified
Per 9 Inningsverified
184
1.38
Willis Roberts
Career
Per 9 Innings
18
0.62
Justin Masterson
Careerverified
Per 9 Innings
3603
27
Willis Roberts
Career
Per 9 Innings
779
27
Justin Masterson
Careerverified
Per 9 Innings
1201
9
Willis Roberts
Career
Per 9 Innings
259.2
9
Justin Masterson
Careerverified
Per 9 Inningsverified
103
0.77
Willis Roberts
Career
Per 9 Innings
15
0.52
Justin Masterson
Careerverified
Per 9 Inningsverified
189
1.42
Willis Roberts
Career
Per 9 Innings
39
1.35
Justin Masterson
Career
Per 9 Inningsverified
14
0.1
Willis Roberts
Careerverified
Per 9 Innings
5
0.17
Justin Masterson
Careerverified
Per 9 Inningsverified
306
2.29
Willis Roberts
Career
Per 9 Innings
59
2.04
Justin Masterson
Careerverified
Per 9 Inningsverified
292
2.19
Willis Roberts
Career
Per 9 Innings
54
1.87
Justin Masterson
Careerverified
Per 9 Inningsverified
95.42
95.42
Willis Roberts
Career
Per 9 Innings
91.53
91.53
Justin Masterson
Careerverified
Per 9 Inningsverified
1.132
1.132
Willis Roberts
Career
Per 9 Innings
0.365
0.365
Justin Masterson
Careerverified
Per 9 Inningsverified
71.32
71.32
Willis Roberts
Career
Per 9 Innings
12.16
12.16
Justin Masterson
Careerverified
Per 9 Inningsverified
19
0.14
Willis Roberts
Career
Per 9 Innings
1
0.03
Justin Masterson
Career
Per 9 Innings
0
0
Willis Roberts
Career
Per 9 Innings
0
0
Justin Masterson
Career
Per 9 Innings
0
0
Willis Roberts
Career
Per 9 Innings
0
0
Justin Masterson
Career
Per 9 Innings
0
0
Willis Roberts
Career
Per 9 Innings
0
0
Justin Masterson
Career
Per 9 Innings
0
0
Willis Roberts
Career
Per 9 Innings
0
0

Hitting Stats for Justin Masterson and Willis Roberts

Justin Masterson
Careerverified
Per 600 PAverified
8
8
Willis Roberts
Career
Per 600 PA
5
5
Justin Masterson
Careerverified
Per 600 PA
258
4300
Willis Roberts
Career
Per 600 PAverified
148
14800
Justin Masterson
Careerverified
Per 600 PA
36
600
Willis Roberts
Career
Per 600 PA
6
600
Justin Masterson
Careerverified
Per 600 PAverified
33
550
Willis Roberts
Career
Per 600 PA
5
500
Justin Masterson
Careerverified
Per 600 PAverified
0.212
0.212
Willis Roberts
Career
Per 600 PA
0.2
0.2
Justin Masterson
Career
Per 600 PA
0.472
0.472
Willis Roberts
Careerverified
Per 600 PAverified
0.5
0.5
Justin Masterson
Careerverified
Per 600 PAverified
7
116.67
Willis Roberts
Career
Per 600 PA
1
100
Justin Masterson
Careerverified
Per 600 PAverified
7
116.67
Willis Roberts
Career
Per 600 PA
1
100
Justin Masterson
Career
Per 600 PA
0
0
Willis Roberts
Career
Per 600 PA
0
0
Justin Masterson
Career
Per 600 PA
0
0
Willis Roberts
Career
Per 600 PA
0
0
Justin Masterson
Career
Per 600 PA
0
0
Willis Roberts
Career
Per 600 PA
0
0
Justin Masterson
Career
Per 600 PA
0
0
Willis Roberts
Career
Per 600 PA
0
0
Justin Masterson
Career
Per 600 PA
0
0
Willis Roberts
Career
Per 600 PA
0
0
Justin Masterson
Career
Per 600 PA
0
0
Willis Roberts
Career
Per 600 PA
0
0
Justin Masterson
Career
Per 600 PA
0
0
Willis Roberts
Career
Per 600 PA
0
0
Justin Masterson
Careerverified
Per 600 PAverified
1.34
22.35
Willis Roberts
Career
Per 600 PA
0.18
18.03
Justin Masterson
Careerverified
Per 600 PAverified
7
116.67
Willis Roberts
Career
Per 600 PA
1
100
Justin Masterson
Careerverified
Per 600 PAverified
7
116.67
Willis Roberts
Career
Per 600 PA
1
100
Justin Masterson
Careerverified
Per 600 PAverified
0.212
0.212
Willis Roberts
Career
Per 600 PA
0.2
0.2
Justin Masterson
Careerverified
Per 600 PAverified
0.212
0.212
Willis Roberts
Career
Per 600 PA
0.2
0.2
Justin Masterson
Careerverified
Per 600 PAverified
0.424
0.424
Willis Roberts
Career
Per 600 PA
0.4
0.4
Justin Masterson
Career
Per 600 PA
0
0
Willis Roberts
Career
Per 600 PA
0
0
Justin Masterson
Careerverified
Per 600 PAverified
0.149
0.149
Willis Roberts
Career
Per 600 PA
0.14
0.14
Justin Masterson
Careerverified
Per 600 PAverified
0.269
0.269
Willis Roberts
Career
Per 600 PA
0.25
0.25
Justin Masterson
Career
Per 600 PA
0.35
0.35
Willis Roberts
Careerverified
Per 600 PAverified
1
1
Justin Masterson
Careerverified
Per 600 PAverified
1
16.67
Willis Roberts
Career
Per 600 PA
0
0
Justin Masterson
Careerverified
Per 600 PAverified
2
33.33
Willis Roberts
Career
Per 600 PA
0
0
Justin Masterson
Careerverified
Per 600 PAverified
3
50
Willis Roberts
Career
Per 600 PA
0
0
Justin Masterson
Careerverified
Per 600 PAverified
1.53
25.52
Willis Roberts
Career
Per 600 PA
0.18
18.45
Justin Masterson
Career
Per 600 PA
0
0
Willis Roberts
Career
Per 600 PA
0
0
Justin Masterson
Career
Per 600 PA
0
0
Willis Roberts
Career
Per 600 PA
0
0
Justin Masterson
Career
Per 600 PA
0
0
Willis Roberts
Career
Per 600 PA
0
0
Justin Masterson
Career
Per 600 PAverified
13
216.67
Willis Roberts
Careerverified
Per 600 PA
4
400
Justin Masterson
Careerverified
Per 600 PAverified
2.77
2.77
Willis Roberts
Career
Per 600 PA
1.5
1.5
Justin Masterson
Career
Per 600 PA
0
0
Willis Roberts
Career
Per 600 PA
0
0
Justin Masterson
Careerverified
Per 600 PA
3
50
Willis Roberts
Career
Per 600 PAverified
1
100
Justin Masterson
Career
Per 600 PA
0
0
Willis Roberts
Career
Per 600 PA
0
0
Justin Masterson
Career
Per 600 PA
0
0
Willis Roberts
Career
Per 600 PA
0
0
Justin Masterson
Career
Per 600 PA
0
0
Willis Roberts
Career
Per 600 PA
0
0
Justin Masterson
Career
Per 600 PA
0
0
Willis Roberts
Career
Per 600 PA
0
0
Justin Masterson
Career
Per 600 PA
0
0
Willis Roberts
Career
Per 600 PA
0
0
Justin Masterson
Career
Per 600 PA
Willis Roberts
Career
Per 600 PA