Jim Roland vs. Mike Willis — Career Comparison

Jim Roland
Silent GenerationNorth CarolinaThrows LeftBats RightNorth AmericaOakland AthleticsAmerican LeagueRelief Pitcher
Mike Willis
Baby BoomersOklahomaThrows LeftBats LeftNorth AmericaToronto Blue JaysAmerican LeagueRelief Pitcher

The numbers give Jim Roland a clear advantage over Mike Willis across the core pitching metrics. Jim Roland led in home run suppression (HR9+ 108 vs 61), run prevention (ERA+ 102 vs 81), and skill-based run prevention (DICE+ 91 vs 84). Mike Willis held the edge in walk avoidance (BB%+ 100 vs 81). Jim Roland was the better reliever — the numbers make that case clearly.

Pitching Stats for Jim Roland and Mike Willis

Jim Roland
Careerverified
Per 9 Inningsverified
10
10
Mike Willis
Career
Per 9 Innings
5
5
Jim Roland
Careerverified
Per 9 Innings
216
4.32
Mike Willis
Career
Per 9 Inningsverified
144
4.38
Jim Roland
Careerverified
Per 9 Inningsverified
29
0.58
Mike Willis
Career
Per 9 Innings
6
0.18
Jim Roland
Careerverified
Per 9 Inningsverified
19
0.38
Mike Willis
Career
Per 9 Innings
7
0.21
Jim Roland
Careerverified
Per 9 Inningsverified
17
0.34
Mike Willis
Career
Per 9 Innings
21
0.64
Jim Roland
Careerverified
Per 9 Inningsverified
52.78
52.78
Mike Willis
Career
Per 9 Innings
25
25
Jim Roland
Careerverified
Per 9 Inningsverified
13.43
13.43
Mike Willis
Career
Per 9 Innings
4.17
4.17
Jim Roland
Careerverified
Per 9 Inningsverified
6
0.12
Mike Willis
Career
Per 9 Innings
1
0.03
Jim Roland
Careerverified
Per 9 Inningsverified
1
0.02
Mike Willis
Career
Per 9 Innings
0
0
Jim Roland
Career
Per 9 Innings
9
0.18
Mike Willis
Careerverified
Per 9 Inningsverified
15
0.46
Jim Roland
Career
Per 9 Inningsverified
161
3.22
Mike Willis
Careerverified
Per 9 Innings
151
4.59
Jim Roland
Careerverified
Per 9 Inningsverified
3.22
3.22
Mike Willis
Career
Per 9 Innings
4.59
4.59
Jim Roland
Careerverified
Per 9 Inningsverified
3.26
3.26
Mike Willis
Career
Per 9 Innings
4.59
4.59
Jim Roland
Careerverified
Per 9 Inningsverified
4.43
4.43
Mike Willis
Career
Per 9 Innings
4.86
4.86
Jim Roland
Careerverified
Per 9 Inningsverified
0.215
0.215
Mike Willis
Career
Per 9 Innings
0.274
0.274
Jim Roland
Careerverified
Per 9 Innings
1351
27
Mike Willis
Career
Per 9 Innings
888
27
Jim Roland
Careerverified
Per 9 Innings
450.1
9
Mike Willis
Career
Per 9 Innings
296
9
Jim Roland
Career
Per 9 Inningsverified
357
7.13
Mike Willis
Careerverified
Per 9 Innings
312
9.49
Jim Roland
Careerverified
Per 9 Inningsverified
7.13
7.13
Mike Willis
Career
Per 9 Innings
9.49
9.49
Jim Roland
Careerverified
Per 9 Inningsverified
34
0.68
Mike Willis
Career
Per 9 Innings
36
1.09
Jim Roland
Careerverified
Per 9 Inningsverified
0.68
0.68
Mike Willis
Career
Per 9 Innings
1.09
1.09
Jim Roland
Careerverified
Per 9 Inningsverified
0.16
0.16
Mike Willis
Career
Per 9 Innings
0.25
0.25
Jim Roland
Career
Per 9 Innings
229
4.58
Mike Willis
Careerverified
Per 9 Inningsverified
124
3.77
Jim Roland
Career
Per 9 Inningsverified
22
0.44
Mike Willis
Careerverified
Per 9 Innings
15
0.46
Jim Roland
Career
Per 9 Innings
4.58
4.58
Mike Willis
Careerverified
Per 9 Inningsverified
3.77
3.77
Jim Roland
Careerverified
Per 9 Inningsverified
272
5.44
Mike Willis
Career
Per 9 Innings
149
4.53
Jim Roland
Careerverified
Per 9 Inningsverified
5.44
5.44
Mike Willis
Career
Per 9 Innings
4.53
4.53
Jim Roland
Careerverified
Per 9 Inningsverified
1.26
1.26
Mike Willis
Career
Per 9 Innings
1.03
1.03
Jim Roland
Careerverified
Per 9 Inningsverified
1.113
1.113
Mike Willis
Career
Per 9 Innings
0.922
0.922
Jim Roland
Career
Per 9 Innings
29
0.58
Mike Willis
Careerverified
Per 9 Inningsverified
9
0.27
Jim Roland
Career
Per 9 Innings
19
0.38
Mike Willis
Careerverified
Per 9 Inningsverified
3
0.09
Jim Roland
Career
Per 9 Innings
3
0.06
Mike Willis
Careerverified
Per 9 Inningsverified
1
0.03
Jim Roland
Careerverified
Per 9 Innings
1927
38.51
Mike Willis
Career
Per 9 Inningsverified
1295
39.38
Jim Roland
Career
Per 9 Innings
64
1.28
Mike Willis
Careerverified
Per 9 Inningsverified
71
2.16
Jim Roland
Career
Per 9 Inningsverified
185
3.7
Mike Willis
Careerverified
Per 9 Innings
161
4.9
Jim Roland
Careerverified
Per 9 Inningsverified
3.7
3.7
Mike Willis
Career
Per 9 Innings
4.9
4.9
Jim Roland
Careerverified
Per 9 Inningsverified
11
0.22
Mike Willis
Career
Per 9 Innings
19
0.58
Jim Roland
Careerverified
Per 9 Inningsverified
5
0.1
Mike Willis
Career
Per 9 Innings
12
0.36
Jim Roland
Career
Per 9 Innings
0
0
Mike Willis
Careerverified
Per 9 Inningsverified
23
0.7
Jim Roland
Careerverified
Per 9 Inningsverified
1.301
1.301
Mike Willis
Career
Per 9 Innings
1.473
1.473
Jim Roland
Careerverified
Per 9 Innings
1663
33.24
Mike Willis
Career
Per 9 Inningsverified
1137
34.57
Jim Roland
Careerverified
Per 9 Inningsverified
0.86
0.86
Mike Willis
Career
Per 9 Innings
1.12
1.12
Jim Roland
Careerverified
Per 9 Inningsverified
0.238
0.238
Mike Willis
Career
Per 9 Innings
0.29
0.29
Jim Roland
Career
Per 9 Innings
38.51
38.51
Mike Willis
Careerverified
Per 9 Inningsverified
39.38
39.38

Fielding Stats for Jim Roland and Mike Willis

Jim Roland
Careerverified
Per 9 Inningsverified
10
10
Mike Willis
Career
Per 9 Innings
5
5
Jim Roland
Careerverified
Per 9 Innings
216
4.33
Mike Willis
Career
Per 9 Inningsverified
144
4.38
Jim Roland
Careerverified
Per 9 Inningsverified
29
0.58
Mike Willis
Career
Per 9 Innings
6
0.18
Jim Roland
Careerverified
Per 9 Innings
1347
27
Mike Willis
Career
Per 9 Innings
888
27
Jim Roland
Careerverified
Per 9 Innings
449
9
Mike Willis
Career
Per 9 Innings
296
9
Jim Roland
Career
Per 9 Innings
19
0.38
Mike Willis
Career
Per 9 Inningsverified
19
0.58
Jim Roland
Careerverified
Per 9 Innings
70
1.4
Mike Willis
Career
Per 9 Inningsverified
49
1.49
Jim Roland
Career
Per 9 Innings
3
0.06
Mike Willis
Careerverified
Per 9 Innings
2
0.06
Jim Roland
Careerverified
Per 9 Innings
92
1.84
Mike Willis
Career
Per 9 Inningsverified
70
2.13
Jim Roland
Careerverified
Per 9 Innings
89
1.78
Mike Willis
Career
Per 9 Inningsverified
68
2.07
Jim Roland
Career
Per 9 Innings
96.74
96.74
Mike Willis
Careerverified
Per 9 Inningsverified
97.14
97.14
Jim Roland
Career
Per 9 Innings
0.412
0.412
Mike Willis
Careerverified
Per 9 Inningsverified
0.472
0.472
Jim Roland
Careerverified
Per 9 Inningsverified
13.43
13.43
Mike Willis
Career
Per 9 Innings
4.17
4.17
Jim Roland
Careerverified
Per 9 Inningsverified
6
0.12
Mike Willis
Career
Per 9 Innings
2
0.06
Jim Roland
Career
Per 9 Innings
0
0
Mike Willis
Career
Per 9 Innings
0
0
Jim Roland
Career
Per 9 Innings
0
0
Mike Willis
Career
Per 9 Innings
0
0
Jim Roland
Career
Per 9 Innings
0
0
Mike Willis
Career
Per 9 Innings
0
0
Jim Roland
Career
Per 9 Innings
0
0
Mike Willis
Career
Per 9 Innings
0
0

Hitting Stats for Jim Roland and Mike Willis

Jim Roland
Careerverified
Per 600 PAverified
10
10
Mike Willis
Career
Per 600 PA
5
Jim Roland
Careerverified
Per 600 PAverified
217
1400
Mike Willis
Career
Per 600 PA
144
Jim Roland
Careerverified
Per 600 PAverified
93
600
Mike Willis
Career
Per 600 PA
0
Jim Roland
Careerverified
Per 600 PAverified
84
541.94
Mike Willis
Career
Per 600 PA
0
Jim Roland
Careerverified
Per 600 PAverified
0.071
0.071
Mike Willis
Career
Per 600 PA
Jim Roland
Careerverified
Per 600 PAverified
0.242
0.242
Mike Willis
Career
Per 600 PA
Jim Roland
Careerverified
Per 600 PAverified
6
38.71
Mike Willis
Career
Per 600 PA
0
Jim Roland
Careerverified
Per 600 PAverified
6
38.71
Mike Willis
Career
Per 600 PA
0
Jim Roland
Career
Per 600 PA
0
0
Mike Willis
Career
Per 600 PA
0
Jim Roland
Career
Per 600 PA
0
0
Mike Willis
Career
Per 600 PA
0
Jim Roland
Career
Per 600 PA
0
0
Mike Willis
Career
Per 600 PA
0
Jim Roland
Career
Per 600 PA
0
0
Mike Willis
Career
Per 600 PA
0
Jim Roland
Career
Per 600 PA
0
0
Mike Willis
Career
Per 600 PA
Jim Roland
Career
Per 600 PA
0
0
Mike Willis
Career
Per 600 PA
Jim Roland
Career
Per 600 PA
0
0
Mike Willis
Career
Per 600 PA
Jim Roland
Careerverified
Per 600 PAverified
0.5
3.21
Mike Willis
Career
Per 600 PA
Jim Roland
Careerverified
Per 600 PAverified
6
38.71
Mike Willis
Career
Per 600 PA
0
Jim Roland
Careerverified
Per 600 PAverified
9
58.06
Mike Willis
Career
Per 600 PA
0
Jim Roland
Careerverified
Per 600 PAverified
0.103
0.103
Mike Willis
Career
Per 600 PA
Jim Roland
Careerverified
Per 600 PAverified
0.071
0.071
Mike Willis
Career
Per 600 PA
Jim Roland
Careerverified
Per 600 PAverified
0.175
0.175
Mike Willis
Career
Per 600 PA
Jim Roland
Career
Per 600 PA
0
0
Mike Willis
Career
Per 600 PA
Jim Roland
Careerverified
Per 600 PAverified
0.064
0.064
Mike Willis
Career
Per 600 PA
Jim Roland
Careerverified
Per 600 PAverified
0.114
0.114
Mike Willis
Career
Per 600 PA
Jim Roland
Careerverified
Per 600 PAverified
0.125
0.125
Mike Willis
Career
Per 600 PA
Jim Roland
Careerverified
Per 600 PAverified
3
19.35
Mike Willis
Career
Per 600 PA
0
Jim Roland
Careerverified
Per 600 PAverified
1
6.45
Mike Willis
Career
Per 600 PA
0
Jim Roland
Careerverified
Per 600 PAverified
4
25.81
Mike Willis
Career
Per 600 PA
0
Jim Roland
Careerverified
Per 600 PAverified
-3.9
-25.19
Mike Willis
Career
Per 600 PA
Jim Roland
Career
Per 600 PA
0
0
Mike Willis
Career
Per 600 PA
0
Jim Roland
Careerverified
Per 600 PAverified
3
19.35
Mike Willis
Career
Per 600 PA
0
Jim Roland
Career
Per 600 PA
0
0
Mike Willis
Career
Per 600 PA
0
Jim Roland
Career
Per 600 PA
36
232.26
Mike Willis
Careerverified
Per 600 PAverified
0
Jim Roland
Careerverified
Per 600 PAverified
2.58
2.58
Mike Willis
Career
Per 600 PA
Jim Roland
Careerverified
Per 600 PAverified
0.08
0.08
Mike Willis
Career
Per 600 PA
Jim Roland
Careerverified
Per 600 PAverified
6
38.71
Mike Willis
Career
Per 600 PA
0
Jim Roland
Career
Per 600 PA
0
0
Mike Willis
Career
Per 600 PA
0
Jim Roland
Career
Per 600 PA
1
6.45
Mike Willis
Careerverified
Per 600 PAverified
0
Jim Roland
Career
Per 600 PA
0
0
Mike Willis
Career
Per 600 PA
0
Jim Roland
Career
Per 600 PA
0
0
Mike Willis
Career
Per 600 PA
0
Jim Roland
Career
Per 600 PA
0
0
Mike Willis
Career
Per 600 PA
0
Jim Roland
Career
Per 600 PA
Mike Willis
Career
Per 600 PA