Rolando Arrojo vs. Ron Willis — Career Comparison

Rolando Arrojo
Gen XCubaThrows RightBats RightCaribbeanBoston Red SoxAmerican LeagueStarting PitcherAll-Star
Ron Willis
Silent GenerationTennesseeThrows RightBats RightNorth AmericaSt. Louis CardinalsNational LeagueRelief Pitcher

Rolando Arrojo built a career as a starting pitcher and Ron Willis as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Rolando Arrojo led in strikeout rate (K%+ 109 vs 78), walk avoidance (BB%+ 101 vs 80), and skill-based run prevention (DICE+ 102 vs 90). Ron Willis held the edge in home run suppression (HR9+ 134 vs 114). Role difference aside, Rolando Arrojo holds a clear edge on every meaningful shared measure.

Pitching Stats for Rolando Arrojo and Ron Willis

Rolando Arrojo
Career
Per 9 Innings
5
5
Ron Willis
Career
Per 9 Innings
5
5
Rolando Arrojo
Career
Per 9 Innings
158
2.03
Ron Willis
Careerverified
Per 9 Inningsverified
188
7.1
Rolando Arrojo
Careerverified
Per 9 Inningsverified
105
1.35
Ron Willis
Career
Per 9 Innings
0
0
Rolando Arrojo
Careerverified
Per 9 Inningsverified
40
0.51
Ron Willis
Career
Per 9 Innings
11
0.42
Rolando Arrojo
Career
Per 9 Innings
42
0.54
Ron Willis
Careerverified
Per 9 Inningsverified
12
0.45
Rolando Arrojo
Careerverified
Per 9 Inningsverified
48.78
48.78
Ron Willis
Career
Per 9 Innings
47.83
47.83
Rolando Arrojo
Careerverified
Per 9 Inningsverified
66.46
66.46
Ron Willis
Career
Per 9 Innings
0
0
Rolando Arrojo
Careerverified
Per 9 Inningsverified
4
0.05
Ron Willis
Career
Per 9 Innings
0
0
Rolando Arrojo
Careerverified
Per 9 Inningsverified
2
0.03
Ron Willis
Career
Per 9 Innings
0
0
Rolando Arrojo
Career
Per 9 Innings
6
0.08
Ron Willis
Careerverified
Per 9 Inningsverified
19
0.72
Rolando Arrojo
Career
Per 9 Innings
354
4.55
Ron Willis
Careerverified
Per 9 Inningsverified
88
3.32
Rolando Arrojo
Career
Per 9 Innings
4.55
4.55
Ron Willis
Careerverified
Per 9 Inningsverified
3.32
3.32
Rolando Arrojo
Career
Per 9 Innings
4.59
4.59
Ron Willis
Careerverified
Per 9 Inningsverified
3.36
3.36
Rolando Arrojo
Career
Per 9 Innings
4.46
4.46
Ron Willis
Careerverified
Per 9 Inningsverified
4.36
4.36
Rolando Arrojo
Career
Per 9 Innings
0.267
0.267
Ron Willis
Careerverified
Per 9 Inningsverified
0.232
0.232
Rolando Arrojo
Careerverified
Per 9 Innings
2100
27
Ron Willis
Career
Per 9 Innings
715
27
Rolando Arrojo
Careerverified
Per 9 Innings
700
9
Ron Willis
Career
Per 9 Innings
238.1
9
Rolando Arrojo
Career
Per 9 Innings
715
9.19
Ron Willis
Careerverified
Per 9 Inningsverified
209
7.89
Rolando Arrojo
Career
Per 9 Innings
9.19
9.19
Ron Willis
Careerverified
Per 9 Inningsverified
7.89
7.89
Rolando Arrojo
Career
Per 9 Innings
83
1.07
Ron Willis
Careerverified
Per 9 Inningsverified
15
0.57
Rolando Arrojo
Career
Per 9 Innings
1.07
1.07
Ron Willis
Careerverified
Per 9 Inningsverified
0.57
0.57
Rolando Arrojo
Career
Per 9 Innings
0.53
0.53
Ron Willis
Careerverified
Per 9 Inningsverified
0.08
0.08
Rolando Arrojo
Career
Per 9 Inningsverified
255
3.28
Ron Willis
Careerverified
Per 9 Innings
119
4.49
Rolando Arrojo
Careerverified
Per 9 Inningsverified
15
0.19
Ron Willis
Career
Per 9 Innings
40
1.51
Rolando Arrojo
Careerverified
Per 9 Inningsverified
3.28
3.28
Ron Willis
Career
Per 9 Innings
4.49
4.49
Rolando Arrojo
Careerverified
Per 9 Inningsverified
512
6.58
Ron Willis
Career
Per 9 Innings
128
4.83
Rolando Arrojo
Careerverified
Per 9 Inningsverified
6.58
6.58
Ron Willis
Career
Per 9 Innings
4.83
4.83
Rolando Arrojo
Careerverified
Per 9 Inningsverified
3.24
3.24
Ron Willis
Career
Per 9 Innings
0.68
0.68
Rolando Arrojo
Careerverified
Per 9 Inningsverified
1.096
1.096
Ron Willis
Career
Per 9 Innings
1.036
1.036
Rolando Arrojo
Career
Per 9 Inningsverified
13
0.17
Ron Willis
Career
Per 9 Innings
13
0.49
Rolando Arrojo
Career
Per 9 Innings
67
0.86
Ron Willis
Careerverified
Per 9 Inningsverified
9
0.34
Rolando Arrojo
Career
Per 9 Innings
3
0.04
Ron Willis
Careerverified
Per 9 Inningsverified
0
0
Rolando Arrojo
Careerverified
Per 9 Innings
3040
39.09
Ron Willis
Career
Per 9 Inningsverified
1037
39.16
Rolando Arrojo
Career
Per 9 Innings
15
0.19
Ron Willis
Careerverified
Per 9 Inningsverified
74
2.79
Rolando Arrojo
Career
Per 9 Innings
377
4.85
Ron Willis
Careerverified
Per 9 Inningsverified
101
3.81
Rolando Arrojo
Career
Per 9 Innings
4.85
4.85
Ron Willis
Careerverified
Per 9 Inningsverified
3.81
3.81
Rolando Arrojo
Career
Per 9 Innings
24
0.31
Ron Willis
Careerverified
Per 9 Inningsverified
4
0.15
Rolando Arrojo
Career
Per 9 Innings
18
0.23
Ron Willis
Careerverified
Per 9 Inningsverified
3
0.11
Rolando Arrojo
Careerverified
Per 9 Inningsverified
72
0.93
Ron Willis
Career
Per 9 Innings
0
0
Rolando Arrojo
Career
Per 9 Innings
1.386
1.386
Ron Willis
Careerverified
Per 9 Inningsverified
1.376
1.376
Rolando Arrojo
Careerverified
Per 9 Inningsverified
2676
34.41
Ron Willis
Career
Per 9 Innings
902
34.06
Rolando Arrojo
Career
Per 9 Innings
2.39
2.39
Ron Willis
Careerverified
Per 9 Inningsverified
0.54
0.54
Rolando Arrojo
Career
Per 9 Innings
0.304
0.304
Ron Willis
Careerverified
Per 9 Inningsverified
0.256
0.256
Rolando Arrojo
Career
Per 9 Innings
39.09
39.09
Ron Willis
Careerverified
Per 9 Inningsverified
39.16
39.16

Fielding Stats for Rolando Arrojo and Ron Willis

Rolando Arrojo
Career
Per 9 Innings
5
5
Ron Willis
Career
Per 9 Innings
5
5
Rolando Arrojo
Career
Per 9 Innings
158
2.03
Ron Willis
Careerverified
Per 9 Inningsverified
188
7.1
Rolando Arrojo
Careerverified
Per 9 Inningsverified
105
1.35
Ron Willis
Career
Per 9 Innings
0
0
Rolando Arrojo
Careerverified
Per 9 Innings
2100
27
Ron Willis
Career
Per 9 Innings
715
27
Rolando Arrojo
Careerverified
Per 9 Innings
700
9
Ron Willis
Career
Per 9 Innings
238.1
9
Rolando Arrojo
Careerverified
Per 9 Innings
71
0.91
Ron Willis
Career
Per 9 Innings
24
0.91
Rolando Arrojo
Careerverified
Per 9 Innings
110
1.41
Ron Willis
Career
Per 9 Inningsverified
56
2.11
Rolando Arrojo
Career
Per 9 Innings
10
0.13
Ron Willis
Careerverified
Per 9 Inningsverified
0
0
Rolando Arrojo
Careerverified
Per 9 Innings
191
2.46
Ron Willis
Career
Per 9 Inningsverified
80
3.02
Rolando Arrojo
Careerverified
Per 9 Innings
181
2.33
Ron Willis
Career
Per 9 Inningsverified
80
3.02
Rolando Arrojo
Career
Per 9 Innings
94.76
94.76
Ron Willis
Careerverified
Per 9 Inningsverified
100
100
Rolando Arrojo
Careerverified
Per 9 Inningsverified
1.146
1.146
Ron Willis
Career
Per 9 Innings
0.426
0.426
Rolando Arrojo
Careerverified
Per 9 Inningsverified
66.46
66.46
Ron Willis
Career
Per 9 Innings
0
0
Rolando Arrojo
Careerverified
Per 9 Innings
18
0.23
Ron Willis
Career
Per 9 Innings
6
0.23
Rolando Arrojo
Career
Per 9 Innings
0
0
Ron Willis
Career
Per 9 Innings
0
0
Rolando Arrojo
Career
Per 9 Innings
0
0
Ron Willis
Career
Per 9 Innings
0
0
Rolando Arrojo
Career
Per 9 Innings
0
0
Ron Willis
Career
Per 9 Innings
0
0
Rolando Arrojo
Career
Per 9 Innings
0
0
Ron Willis
Career
Per 9 Innings
0
0

Hitting Stats for Rolando Arrojo and Ron Willis

Rolando Arrojo
Career
Per 600 PA
5
5
Ron Willis
Career
Per 600 PA
5
5
Rolando Arrojo
Career
Per 600 PA
158
2257.14
Ron Willis
Careerverified
Per 600 PAverified
188
4338.46
Rolando Arrojo
Careerverified
Per 600 PA
42
600
Ron Willis
Career
Per 600 PA
26
600
Rolando Arrojo
Careerverified
Per 600 PA
37
528.57
Ron Willis
Career
Per 600 PAverified
25
576.92
Rolando Arrojo
Career
Per 600 PA
0.081
0.081
Ron Willis
Careerverified
Per 600 PAverified
0.16
0.16
Rolando Arrojo
Career
Per 600 PA
0.298
0.298
Ron Willis
Careerverified
Per 600 PAverified
0.404
0.404
Rolando Arrojo
Career
Per 600 PA
3
42.86
Ron Willis
Careerverified
Per 600 PAverified
4
92.31
Rolando Arrojo
Career
Per 600 PA
2
28.57
Ron Willis
Careerverified
Per 600 PAverified
3
69.23
Rolando Arrojo
Career
Per 600 PA
1
14.29
Ron Willis
Career
Per 600 PAverified
1
23.08
Rolando Arrojo
Career
Per 600 PA
0
0
Ron Willis
Career
Per 600 PA
0
0
Rolando Arrojo
Career
Per 600 PA
0
0
Ron Willis
Career
Per 600 PA
0
0
Rolando Arrojo
Career
Per 600 PA
1
14.29
Ron Willis
Career
Per 600 PAverified
1
23.08
Rolando Arrojo
Careerverified
Per 600 PAverified
0.333
0.333
Ron Willis
Career
Per 600 PA
0.25
0.25
Rolando Arrojo
Career
Per 600 PA
0
0
Ron Willis
Career
Per 600 PA
0
0
Rolando Arrojo
Career
Per 600 PA
0
0
Ron Willis
Career
Per 600 PA
0
0
Rolando Arrojo
Career
Per 600 PA
0.45
6.4
Ron Willis
Careerverified
Per 600 PAverified
0.8
18.42
Rolando Arrojo
Career
Per 600 PA
4
57.14
Ron Willis
Careerverified
Per 600 PAverified
5
115.38
Rolando Arrojo
Career
Per 600 PA
4
57.14
Ron Willis
Careerverified
Per 600 PAverified
5
115.38
Rolando Arrojo
Career
Per 600 PA
0.105
0.105
Ron Willis
Careerverified
Per 600 PAverified
0.192
0.192
Rolando Arrojo
Career
Per 600 PA
0.108
0.108
Ron Willis
Careerverified
Per 600 PAverified
0.2
0.2
Rolando Arrojo
Career
Per 600 PA
0.213
0.213
Ron Willis
Careerverified
Per 600 PAverified
0.392
0.392
Rolando Arrojo
Career
Per 600 PA
0.027
0.027
Ron Willis
Careerverified
Per 600 PAverified
0.04
0.04
Rolando Arrojo
Career
Per 600 PA
0.074
0.074
Ron Willis
Careerverified
Per 600 PAverified
0.137
0.137
Rolando Arrojo
Career
Per 600 PA
0.147
0.147
Ron Willis
Careerverified
Per 600 PAverified
0.273
0.273
Rolando Arrojo
Career
Per 600 PA
0.177
0.177
Ron Willis
Careerverified
Per 600 PAverified
0.235
0.235
Rolando Arrojo
Careerverified
Per 600 PAverified
2
28.57
Ron Willis
Career
Per 600 PA
1
23.08
Rolando Arrojo
Career
Per 600 PA
3
42.86
Ron Willis
Career
Per 600 PAverified
3
69.23
Rolando Arrojo
Careerverified
Per 600 PA
5
71.43
Ron Willis
Career
Per 600 PAverified
4
92.31
Rolando Arrojo
Career
Per 600 PA
-1.3
-18.58
Ron Willis
Careerverified
Per 600 PAverified
0.27
6.2
Rolando Arrojo
Career
Per 600 PA
0
0
Ron Willis
Career
Per 600 PA
0
0
Rolando Arrojo
Career
Per 600 PA
1
14.29
Ron Willis
Career
Per 600 PAverified
1
23.08
Rolando Arrojo
Career
Per 600 PA
0
0
Ron Willis
Career
Per 600 PA
0
0
Rolando Arrojo
Career
Per 600 PA
20
285.71
Ron Willis
Careerverified
Per 600 PAverified
8
184.62
Rolando Arrojo
Career
Per 600 PA
2.1
2.1
Ron Willis
Careerverified
Per 600 PAverified
3.25
3.25
Rolando Arrojo
Career
Per 600 PA
0.05
0.05
Ron Willis
Careerverified
Per 600 PAverified
0.13
0.13
Rolando Arrojo
Careerverified
Per 600 PAverified
4
57.14
Ron Willis
Career
Per 600 PA
0
0
Rolando Arrojo
Career
Per 600 PA
0
0
Ron Willis
Career
Per 600 PA
0
0
Rolando Arrojo
Careerverified
Per 600 PAverified
0
0
Ron Willis
Career
Per 600 PA
1
23.08
Rolando Arrojo
Career
Per 600 PA
0
0
Ron Willis
Career
Per 600 PA
0
0
Rolando Arrojo
Career
Per 600 PA
0
0
Ron Willis
Career
Per 600 PA
0
0
Rolando Arrojo
Career
Per 600 PA
0
0
Ron Willis
Career
Per 600 PA
0
0
Rolando Arrojo
Career
Per 600 PA
Ron Willis
Career
Per 600 PA