Rafael Perez vs. Bob Welch — Career Comparison

Rafael Perez
MillenialD.R.Throws LeftBats LeftCaribbeanCleveland GuardiansAmerican LeagueRelief Pitcher
Bob Welch
Baby BoomersMichiganThrows RightBats RightNorth AmericaLos Angeles DodgersNational LeagueStarting PitcherCy Young AwardAll-Star

Bob Welch built a career as a starting pitcher and Rafael Perez as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Rafael Perez led in home run suppression (HR9+ 175 vs 81), skill-based run prevention (DICE+ 120 vs 90), and run prevention (ERA+ 135 vs 107). Role difference aside, Rafael Perez holds a clear edge on every meaningful shared measure.

Pitching Stats for Rafael Perez and Bob Welch

Rafael Perez
Career
Per 9 Innings
7
7
Bob Welch
Careerverified
Per 9 Inningsverified
17
17
Rafael Perez
Career
Per 9 Inningsverified
338
9.25
Bob Welch
Careerverified
Per 9 Innings
506
1.47
Rafael Perez
Career
Per 9 Innings
0
0
Bob Welch
Careerverified
Per 9 Inningsverified
462
1.34
Rafael Perez
Career
Per 9 Innings
21
0.57
Bob Welch
Careerverified
Per 9 Inningsverified
211
0.61
Rafael Perez
Careerverified
Per 9 Inningsverified
12
0.33
Bob Welch
Career
Per 9 Innings
146
0.42
Rafael Perez
Careerverified
Per 9 Inningsverified
63.64
63.64
Bob Welch
Career
Per 9 Innings
59.1
59.1
Rafael Perez
Career
Per 9 Innings
0
0
Bob Welch
Careerverified
Per 9 Inningsverified
91.3
91.3
Rafael Perez
Career
Per 9 Innings
0
0
Bob Welch
Careerverified
Per 9 Inningsverified
61
0.18
Rafael Perez
Career
Per 9 Innings
0
0
Bob Welch
Careerverified
Per 9 Inningsverified
28
0.08
Rafael Perez
Career
Per 9 Inningsverified
3
0.08
Bob Welch
Careerverified
Per 9 Innings
8
0.02
Rafael Perez
Careerverified
Per 9 Innings
133
3.64
Bob Welch
Career
Per 9 Inningsverified
1191
3.47
Rafael Perez
Career
Per 9 Innings
3.64
3.64
Bob Welch
Careerverified
Per 9 Inningsverified
3.47
3.47
Rafael Perez
Career
Per 9 Innings
3.58
3.58
Bob Welch
Careerverified
Per 9 Inningsverified
3.47
3.47
Rafael Perez
Careerverified
Per 9 Inningsverified
3.5
3.5
Bob Welch
Career
Per 9 Innings
3.93
3.93
Rafael Perez
Career
Per 9 Innings
0.256
0.256
Bob Welch
Careerverified
Per 9 Inningsverified
0.249
0.249
Rafael Perez
Career
Per 9 Innings
987
27
Bob Welch
Careerverified
Per 9 Innings
9276
27
Rafael Perez
Career
Per 9 Innings
329
9
Bob Welch
Careerverified
Per 9 Innings
3092
9
Rafael Perez
Careerverified
Per 9 Innings
320
8.75
Bob Welch
Career
Per 9 Inningsverified
2894
8.42
Rafael Perez
Career
Per 9 Innings
8.75
8.75
Bob Welch
Careerverified
Per 9 Inningsverified
8.42
8.42
Rafael Perez
Careerverified
Per 9 Inningsverified
26
0.71
Bob Welch
Career
Per 9 Innings
267
0.78
Rafael Perez
Careerverified
Per 9 Inningsverified
0.71
0.71
Bob Welch
Career
Per 9 Innings
0.78
0.78
Rafael Perez
Careerverified
Per 9 Inningsverified
0.08
0.08
Bob Welch
Career
Per 9 Innings
0.53
0.53
Rafael Perez
Careerverified
Per 9 Innings
117
3.2
Bob Welch
Career
Per 9 Inningsverified
1034
3.01
Rafael Perez
Careerverified
Per 9 Innings
17
0.47
Bob Welch
Career
Per 9 Inningsverified
60
0.17
Rafael Perez
Career
Per 9 Innings
3.2
3.2
Bob Welch
Careerverified
Per 9 Inningsverified
3.01
3.01
Rafael Perez
Career
Per 9 Inningsverified
268
7.33
Bob Welch
Careerverified
Per 9 Innings
1969
5.73
Rafael Perez
Careerverified
Per 9 Inningsverified
7.33
7.33
Bob Welch
Career
Per 9 Innings
5.73
5.73
Rafael Perez
Career
Per 9 Innings
0.79
0.79
Bob Welch
Careerverified
Per 9 Inningsverified
3.89
3.89
Rafael Perez
Careerverified
Per 9 Inningsverified
1.17
1.17
Bob Welch
Career
Per 9 Innings
0.971
0.971
Rafael Perez
Careerverified
Per 9 Innings
21
0.57
Bob Welch
Career
Per 9 Inningsverified
55
0.16
Rafael Perez
Careerverified
Per 9 Inningsverified
4
0.11
Bob Welch
Career
Per 9 Innings
79
0.23
Rafael Perez
Careerverified
Per 9 Innings
5
0.14
Bob Welch
Career
Per 9 Inningsverified
45
0.13
Rafael Perez
Career
Per 9 Inningsverified
1395
38.16
Bob Welch
Careerverified
Per 9 Innings
12956
37.71
Rafael Perez
Careerverified
Per 9 Inningsverified
63
1.72
Bob Welch
Career
Per 9 Innings
20
0.06
Rafael Perez
Careerverified
Per 9 Innings
147
4.02
Bob Welch
Career
Per 9 Inningsverified
1310
3.81
Rafael Perez
Career
Per 9 Innings
4.02
4.02
Bob Welch
Careerverified
Per 9 Inningsverified
3.81
3.81
Rafael Perez
Careerverified
Per 9 Innings
17
0.47
Bob Welch
Career
Per 9 Inningsverified
122
0.36
Rafael Perez
Careerverified
Per 9 Inningsverified
6
0.16
Bob Welch
Career
Per 9 Innings
83
0.24
Rafael Perez
Career
Per 9 Inningsverified
48
1.31
Bob Welch
Careerverified
Per 9 Innings
209
0.61
Rafael Perez
Career
Per 9 Innings
1.328
1.328
Bob Welch
Careerverified
Per 9 Inningsverified
1.27
1.27
Rafael Perez
Career
Per 9 Inningsverified
1251
34.22
Bob Welch
Careerverified
Per 9 Innings
11638
33.88
Rafael Perez
Careerverified
Per 9 Inningsverified
0.43
0.43
Bob Welch
Career
Per 9 Innings
2.59
2.59
Rafael Perez
Career
Per 9 Innings
0.307
0.307
Bob Welch
Careerverified
Per 9 Inningsverified
0.279
0.279
Rafael Perez
Careerverified
Per 9 Inningsverified
38.16
38.16
Bob Welch
Career
Per 9 Innings
37.71
37.71

Fielding Stats for Rafael Perez and Bob Welch

Rafael Perez
Career
Per 9 Innings
7
7
Bob Welch
Careerverified
Per 9 Inningsverified
17
17
Rafael Perez
Career
Per 9 Inningsverified
338
9.25
Bob Welch
Careerverified
Per 9 Innings
507
1.48
Rafael Perez
Career
Per 9 Innings
0
0
Bob Welch
Careerverified
Per 9 Inningsverified
462
1.34
Rafael Perez
Career
Per 9 Innings
987
27
Bob Welch
Careerverified
Per 9 Innings
9279
27
Rafael Perez
Career
Per 9 Innings
329
9
Bob Welch
Careerverified
Per 9 Innings
3093
9
Rafael Perez
Career
Per 9 Innings
18
0.49
Bob Welch
Careerverified
Per 9 Inningsverified
243
0.71
Rafael Perez
Career
Per 9 Inningsverified
57
1.56
Bob Welch
Careerverified
Per 9 Innings
394
1.15
Rafael Perez
Careerverified
Per 9 Innings
9
0.25
Bob Welch
Career
Per 9 Inningsverified
26
0.08
Rafael Perez
Career
Per 9 Inningsverified
84
2.3
Bob Welch
Careerverified
Per 9 Innings
663
1.93
Rafael Perez
Career
Per 9 Inningsverified
75
2.05
Bob Welch
Careerverified
Per 9 Innings
637
1.85
Rafael Perez
Career
Per 9 Innings
89.29
89.29
Bob Welch
Careerverified
Per 9 Inningsverified
96.08
96.08
Rafael Perez
Career
Per 9 Innings
0.222
0.222
Bob Welch
Careerverified
Per 9 Inningsverified
1.256
1.256
Rafael Perez
Career
Per 9 Innings
0
0
Bob Welch
Careerverified
Per 9 Inningsverified
91.12
91.12
Rafael Perez
Career
Per 9 Innings
3
0.08
Bob Welch
Careerverified
Per 9 Inningsverified
30
0.09
Rafael Perez
Career
Per 9 Innings
0
0
Bob Welch
Career
Per 9 Innings
0
0
Rafael Perez
Career
Per 9 Innings
0
0
Bob Welch
Career
Per 9 Innings
0
0
Rafael Perez
Career
Per 9 Innings
0
0
Bob Welch
Career
Per 9 Innings
0
0
Rafael Perez
Career
Per 9 Innings
0
0
Bob Welch
Career
Per 9 Innings
0
0

Hitting Stats for Rafael Perez and Bob Welch

Rafael Perez
Career
Per 600 PA
7
7
Bob Welch
Careerverified
Per 600 PAverified
17
17
Rafael Perez
Career
Per 600 PAverified
338
202800
Bob Welch
Careerverified
Per 600 PA
520
467.07
Rafael Perez
Career
Per 600 PA
1
600
Bob Welch
Careerverified
Per 600 PA
668
600
Rafael Perez
Career
Per 600 PAverified
1
600
Bob Welch
Careerverified
Per 600 PA
582
522.75
Rafael Perez
Career
Per 600 PA
0
0
Bob Welch
Careerverified
Per 600 PAverified
0.151
0.151
Rafael Perez
Career
Per 600 PA
0
0
Bob Welch
Careerverified
Per 600 PAverified
0.433
0.433
Rafael Perez
Career
Per 600 PA
0
0
Bob Welch
Careerverified
Per 600 PAverified
88
79.04
Rafael Perez
Career
Per 600 PA
0
0
Bob Welch
Careerverified
Per 600 PAverified
78
70.06
Rafael Perez
Career
Per 600 PA
0
0
Bob Welch
Careerverified
Per 600 PAverified
7
6.29
Rafael Perez
Career
Per 600 PA
0
0
Bob Welch
Careerverified
Per 600 PAverified
1
0.9
Rafael Perez
Career
Per 600 PA
0
0
Bob Welch
Careerverified
Per 600 PAverified
2
1.8
Rafael Perez
Career
Per 600 PA
0
0
Bob Welch
Careerverified
Per 600 PAverified
10
8.98
Rafael Perez
Career
Per 600 PA
Bob Welch
Careerverified
Per 600 PAverified
0.114
0.114
Rafael Perez
Career
Per 600 PA
0
0
Bob Welch
Careerverified
Per 600 PAverified
0.003
0.003
Rafael Perez
Career
Per 600 PA
Bob Welch
Careerverified
Per 600 PAverified
0.023
0.023
Rafael Perez
Career
Per 600 PA
0
0
Bob Welch
Careerverified
Per 600 PAverified
19.24
17.28
Rafael Perez
Career
Per 600 PA
0
0
Bob Welch
Careerverified
Per 600 PAverified
103
92.51
Rafael Perez
Career
Per 600 PA
0
0
Bob Welch
Careerverified
Per 600 PAverified
113
101.5
Rafael Perez
Career
Per 600 PA
0
0
Bob Welch
Careerverified
Per 600 PAverified
0.186
0.186
Rafael Perez
Career
Per 600 PA
0
0
Bob Welch
Careerverified
Per 600 PAverified
0.177
0.177
Rafael Perez
Career
Per 600 PA
0
0
Bob Welch
Careerverified
Per 600 PAverified
0.363
0.363
Rafael Perez
Career
Per 600 PA
0
0
Bob Welch
Careerverified
Per 600 PAverified
0.026
0.026
Rafael Perez
Career
Per 600 PA
0
0
Bob Welch
Careerverified
Per 600 PAverified
0.128
0.128
Rafael Perez
Career
Per 600 PA
0
0
Bob Welch
Careerverified
Per 600 PAverified
0.257
0.257
Rafael Perez
Career
Per 600 PA
Bob Welch
Careerverified
Per 600 PAverified
0.209
0.209
Rafael Perez
Career
Per 600 PA
0
0
Bob Welch
Careerverified
Per 600 PAverified
26
23.35
Rafael Perez
Career
Per 600 PA
0
0
Bob Welch
Careerverified
Per 600 PAverified
30
26.95
Rafael Perez
Career
Per 600 PA
0
0
Bob Welch
Careerverified
Per 600 PAverified
54
48.5
Rafael Perez
Career
Per 600 PA
-0.11
-66.4
Bob Welch
Careerverified
Per 600 PAverified
11.96
10.74
Rafael Perez
Career
Per 600 PA
0
0
Bob Welch
Careerverified
Per 600 PAverified
3
2.69
Rafael Perez
Career
Per 600 PA
0
0
Bob Welch
Careerverified
Per 600 PAverified
22
19.76
Rafael Perez
Career
Per 600 PA
0
0
Bob Welch
Career
Per 600 PA
0
0
Rafael Perez
Careerverified
Per 600 PA
1
600
Bob Welch
Career
Per 600 PAverified
171
153.59
Rafael Perez
Career
Per 600 PA
1
1
Bob Welch
Careerverified
Per 600 PAverified
3.91
3.91
Rafael Perez
Career
Per 600 PA
0
0
Bob Welch
Careerverified
Per 600 PAverified
0.13
0.13
Rafael Perez
Career
Per 600 PA
0
0
Bob Welch
Careerverified
Per 600 PAverified
59
52.99
Rafael Perez
Career
Per 600 PA
0
0
Bob Welch
Careerverified
Per 600 PAverified
2
1.8
Rafael Perez
Careerverified
Per 600 PAverified
0
0
Bob Welch
Career
Per 600 PA
4
3.59
Rafael Perez
Career
Per 600 PA
0
0
Bob Welch
Career
Per 600 PA
0
0
Rafael Perez
Career
Per 600 PA
0
0
Bob Welch
Careerverified
Per 600 PAverified
1
0.9
Rafael Perez
Career
Per 600 PA
0
0
Bob Welch
Careerverified
Per 600 PAverified
1
0.9
Rafael Perez
Career
Per 600 PA
Bob Welch
Career
Per 600 PA
0
0