Aaron Laffey vs. Roger Nelson — Career Comparison

Aaron Laffey
MillenialMarylandThrows LeftBats LeftNorth AmericaCleveland GuardiansAmerican LeagueStarting Pitcher
Roger Nelson
Silent GenerationCaliforniaThrows RightBats RightNorth AmericaKansas City RoyalsAmerican LeagueStarting Pitcher

The numbers give Roger Nelson a clear advantage over Aaron Laffey across the core pitching metrics. Roger Nelson led in walk avoidance (BB%+ 139 vs 82), strikeout rate (K%+ 98 vs 63), and run prevention (ERA+ 128 vs 98). Roger Nelson was the better starter — the numbers make that case clearly.

Pitching Stats for Aaron Laffey and Roger Nelson

Aaron Laffey
Career
Per 9 Innings
8
8
Roger Nelson
Careerverified
Per 9 Inningsverified
9
9
Aaron Laffey
Careerverified
Per 9 Inningsverified
156
2.84
Roger Nelson
Career
Per 9 Innings
135
1.91
Aaron Laffey
Career
Per 9 Inningsverified
68
1.24
Roger Nelson
Careerverified
Per 9 Innings
77
1.09
Aaron Laffey
Career
Per 9 Inningsverified
26
0.47
Roger Nelson
Careerverified
Per 9 Innings
29
0.41
Aaron Laffey
Careerverified
Per 9 Innings
29
0.53
Roger Nelson
Career
Per 9 Inningsverified
32
0.45
Aaron Laffey
Career
Per 9 Innings
47.27
47.27
Roger Nelson
Careerverified
Per 9 Inningsverified
47.54
47.54
Aaron Laffey
Career
Per 9 Innings
43.59
43.59
Roger Nelson
Careerverified
Per 9 Inningsverified
57.04
57.04
Aaron Laffey
Career
Per 9 Innings
0
0
Roger Nelson
Careerverified
Per 9 Inningsverified
20
0.28
Aaron Laffey
Career
Per 9 Innings
0
0
Roger Nelson
Careerverified
Per 9 Inningsverified
7
0.1
Aaron Laffey
Career
Per 9 Innings
1
0.02
Roger Nelson
Careerverified
Per 9 Inningsverified
4
0.06
Aaron Laffey
Career
Per 9 Innings
244
4.44
Roger Nelson
Careerverified
Per 9 Inningsverified
216
3.06
Aaron Laffey
Career
Per 9 Innings
4.44
4.44
Roger Nelson
Careerverified
Per 9 Inningsverified
3.06
3.06
Aaron Laffey
Career
Per 9 Innings
5.01
5.01
Roger Nelson
Careerverified
Per 9 Inningsverified
2.62
2.62
Aaron Laffey
Career
Per 9 Innings
4.65
4.65
Roger Nelson
Careerverified
Per 9 Inningsverified
3.71
3.71
Aaron Laffey
Career
Per 9 Innings
0.286
0.286
Roger Nelson
Careerverified
Per 9 Inningsverified
0.222
0.222
Aaron Laffey
Career
Per 9 Innings
1483
27
Roger Nelson
Careerverified
Per 9 Innings
1909
27
Aaron Laffey
Career
Per 9 Innings
494.1
9
Roger Nelson
Careerverified
Per 9 Innings
636.1
9
Aaron Laffey
Career
Per 9 Innings
552
10.05
Roger Nelson
Careerverified
Per 9 Inningsverified
516
7.3
Aaron Laffey
Career
Per 9 Innings
10.05
10.05
Roger Nelson
Careerverified
Per 9 Inningsverified
7.3
7.3
Aaron Laffey
Career
Per 9 Innings
48
0.87
Roger Nelson
Careerverified
Per 9 Inningsverified
44
0.62
Aaron Laffey
Career
Per 9 Innings
0.87
0.87
Roger Nelson
Careerverified
Per 9 Inningsverified
0.62
0.62
Aaron Laffey
Careerverified
Per 9 Inningsverified
0.31
0.31
Roger Nelson
Career
Per 9 Innings
0.33
0.33
Aaron Laffey
Career
Per 9 Innings
199
3.62
Roger Nelson
Careerverified
Per 9 Inningsverified
190
2.69
Aaron Laffey
Careerverified
Per 9 Inningsverified
8
0.15
Roger Nelson
Career
Per 9 Innings
11
0.16
Aaron Laffey
Career
Per 9 Innings
3.62
3.62
Roger Nelson
Careerverified
Per 9 Inningsverified
2.69
2.69
Aaron Laffey
Career
Per 9 Innings
245
4.46
Roger Nelson
Careerverified
Per 9 Inningsverified
371
5.25
Aaron Laffey
Career
Per 9 Innings
4.46
4.46
Roger Nelson
Careerverified
Per 9 Inningsverified
5.25
5.25
Aaron Laffey
Career
Per 9 Innings
1.57
1.57
Roger Nelson
Careerverified
Per 9 Inningsverified
2.75
2.75
Aaron Laffey
Careerverified
Per 9 Inningsverified
0.898
0.898
Roger Nelson
Career
Per 9 Innings
0.882
0.882
Aaron Laffey
Careerverified
Per 9 Inningsverified
13
0.24
Roger Nelson
Career
Per 9 Innings
25
0.35
Aaron Laffey
Career
Per 9 Innings
28
0.51
Roger Nelson
Careerverified
Per 9 Inningsverified
17
0.24
Aaron Laffey
Career
Per 9 Innings
4
0.07
Roger Nelson
Careerverified
Per 9 Inningsverified
2
0.03
Aaron Laffey
Career
Per 9 Inningsverified
2181
39.71
Roger Nelson
Careerverified
Per 9 Innings
2556
36.15
Aaron Laffey
Career
Per 9 Innings
13
0.24
Roger Nelson
Careerverified
Per 9 Inningsverified
22
0.31
Aaron Laffey
Career
Per 9 Innings
270
4.92
Roger Nelson
Careerverified
Per 9 Inningsverified
234
3.31
Aaron Laffey
Career
Per 9 Innings
4.92
4.92
Roger Nelson
Careerverified
Per 9 Inningsverified
3.31
3.31
Aaron Laffey
Careerverified
Per 9 Innings
11
0.2
Roger Nelson
Career
Per 9 Inningsverified
13
0.18
Aaron Laffey
Career
Per 9 Innings
13
0.24
Roger Nelson
Careerverified
Per 9 Inningsverified
11
0.16
Aaron Laffey
Careerverified
Per 9 Inningsverified
74
1.35
Roger Nelson
Career
Per 9 Innings
14
0.2
Aaron Laffey
Career
Per 9 Innings
1.519
1.519
Roger Nelson
Careerverified
Per 9 Inningsverified
1.11
1.11
Aaron Laffey
Career
Per 9 Inningsverified
1930
35.14
Roger Nelson
Careerverified
Per 9 Innings
2325
32.88
Aaron Laffey
Career
Per 9 Innings
1.73
1.73
Roger Nelson
Career
Per 9 Innings
1.73
1.73
Aaron Laffey
Career
Per 9 Innings
0.308
0.308
Roger Nelson
Careerverified
Per 9 Inningsverified
0.247
0.247
Aaron Laffey
Careerverified
Per 9 Inningsverified
39.71
39.71
Roger Nelson
Career
Per 9 Innings
36.15
36.15

Fielding Stats for Aaron Laffey and Roger Nelson

Aaron Laffey
Career
Per 9 Innings
8
8
Roger Nelson
Careerverified
Per 9 Inningsverified
9
9
Aaron Laffey
Careerverified
Per 9 Inningsverified
156
2.84
Roger Nelson
Career
Per 9 Innings
135
1.91
Aaron Laffey
Career
Per 9 Inningsverified
68
1.24
Roger Nelson
Careerverified
Per 9 Innings
77
1.09
Aaron Laffey
Career
Per 9 Innings
1483
27
Roger Nelson
Careerverified
Per 9 Innings
1908
27
Aaron Laffey
Career
Per 9 Innings
494.1
9
Roger Nelson
Careerverified
Per 9 Innings
636
9
Aaron Laffey
Career
Per 9 Innings
28
0.51
Roger Nelson
Careerverified
Per 9 Inningsverified
43
0.61
Aaron Laffey
Career
Per 9 Innings
80
1.46
Roger Nelson
Careerverified
Per 9 Innings
103
1.46
Aaron Laffey
Careerverified
Per 9 Inningsverified
3
0.05
Roger Nelson
Career
Per 9 Innings
8
0.11
Aaron Laffey
Career
Per 9 Innings
111
2.02
Roger Nelson
Careerverified
Per 9 Inningsverified
154
2.18
Aaron Laffey
Career
Per 9 Innings
108
1.97
Roger Nelson
Careerverified
Per 9 Inningsverified
146
2.07
Aaron Laffey
Careerverified
Per 9 Inningsverified
97.3
97.3
Roger Nelson
Career
Per 9 Innings
94.81
94.81
Aaron Laffey
Career
Per 9 Innings
0.692
0.692
Roger Nelson
Careerverified
Per 9 Inningsverified
1.082
1.082
Aaron Laffey
Career
Per 9 Innings
43.59
43.59
Roger Nelson
Careerverified
Per 9 Inningsverified
57.04
57.04
Aaron Laffey
Career
Per 9 Innings
6
0.11
Roger Nelson
Careerverified
Per 9 Innings
8
0.11
Aaron Laffey
Career
Per 9 Innings
0
0
Roger Nelson
Career
Per 9 Innings
0
0
Aaron Laffey
Career
Per 9 Innings
0
0
Roger Nelson
Career
Per 9 Innings
0
0
Aaron Laffey
Career
Per 9 Innings
0
0
Roger Nelson
Career
Per 9 Innings
0
0
Aaron Laffey
Career
Per 9 Innings
0
0
Roger Nelson
Career
Per 9 Innings
0
0

Hitting Stats for Aaron Laffey and Roger Nelson

Aaron Laffey
Career
Per 600 PA
8
8
Roger Nelson
Careerverified
Per 600 PAverified
9
9
Aaron Laffey
Careerverified
Per 600 PAverified
156
10400
Roger Nelson
Career
Per 600 PA
135
389.42
Aaron Laffey
Career
Per 600 PA
9
600
Roger Nelson
Careerverified
Per 600 PA
208
600
Aaron Laffey
Career
Per 600 PAverified
9
600
Roger Nelson
Careerverified
Per 600 PA
180
519.23
Aaron Laffey
Careerverified
Per 600 PAverified
0.222
0.222
Roger Nelson
Career
Per 600 PA
0.128
0.128
Aaron Laffey
Careerverified
Per 600 PAverified
0.444
0.444
Roger Nelson
Career
Per 600 PA
0.392
0.392
Aaron Laffey
Career
Per 600 PAverified
2
133.33
Roger Nelson
Careerverified
Per 600 PA
23
66.35
Aaron Laffey
Career
Per 600 PAverified
2
133.33
Roger Nelson
Careerverified
Per 600 PA
22
63.46
Aaron Laffey
Career
Per 600 PA
0
0
Roger Nelson
Career
Per 600 PA
0
0
Aaron Laffey
Career
Per 600 PA
0
0
Roger Nelson
Careerverified
Per 600 PAverified
1
2.88
Aaron Laffey
Career
Per 600 PA
0
0
Roger Nelson
Career
Per 600 PA
0
0
Aaron Laffey
Career
Per 600 PA
0
0
Roger Nelson
Careerverified
Per 600 PAverified
1
2.88
Aaron Laffey
Career
Per 600 PA
0
0
Roger Nelson
Careerverified
Per 600 PAverified
0.044
0.044
Aaron Laffey
Career
Per 600 PA
0
0
Roger Nelson
Career
Per 600 PA
0
0
Aaron Laffey
Career
Per 600 PA
0
0
Roger Nelson
Career
Per 600 PA
0
0
Aaron Laffey
Career
Per 600 PAverified
0.4
26.79
Roger Nelson
Careerverified
Per 600 PA
4.41
12.72
Aaron Laffey
Career
Per 600 PAverified
2
133.33
Roger Nelson
Careerverified
Per 600 PA
25
72.12
Aaron Laffey
Career
Per 600 PAverified
2
133.33
Roger Nelson
Careerverified
Per 600 PA
34
98.08
Aaron Laffey
Careerverified
Per 600 PAverified
0.222
0.222
Roger Nelson
Career
Per 600 PA
0.177
0.177
Aaron Laffey
Careerverified
Per 600 PAverified
0.222
0.222
Roger Nelson
Career
Per 600 PA
0.139
0.139
Aaron Laffey
Careerverified
Per 600 PAverified
0.444
0.444
Roger Nelson
Career
Per 600 PA
0.316
0.316
Aaron Laffey
Career
Per 600 PA
0
0
Roger Nelson
Careerverified
Per 600 PAverified
0.011
0.011
Aaron Laffey
Careerverified
Per 600 PAverified
0.156
0.156
Roger Nelson
Career
Per 600 PA
0.114
0.114
Aaron Laffey
Careerverified
Per 600 PAverified
0.286
0.286
Roger Nelson
Career
Per 600 PA
0.228
0.228
Aaron Laffey
Careerverified
Per 600 PAverified
0.286
0.286
Roger Nelson
Career
Per 600 PA
0.187
0.187
Aaron Laffey
Career
Per 600 PA
0
0
Roger Nelson
Careerverified
Per 600 PAverified
12
34.62
Aaron Laffey
Career
Per 600 PA
0
0
Roger Nelson
Careerverified
Per 600 PAverified
8
23.08
Aaron Laffey
Career
Per 600 PA
0
0
Roger Nelson
Careerverified
Per 600 PAverified
20
57.69
Aaron Laffey
Career
Per 600 PAverified
0.47
31.45
Roger Nelson
Careerverified
Per 600 PA
1.5
4.33
Aaron Laffey
Career
Per 600 PA
0
0
Roger Nelson
Career
Per 600 PA
0
0
Aaron Laffey
Career
Per 600 PA
0
0
Roger Nelson
Careerverified
Per 600 PAverified
11
31.73
Aaron Laffey
Career
Per 600 PA
0
0
Roger Nelson
Career
Per 600 PA
0
0
Aaron Laffey
Careerverified
Per 600 PAverified
2
133.33
Roger Nelson
Career
Per 600 PA
58
167.31
Aaron Laffey
Careerverified
Per 600 PAverified
4.5
4.5
Roger Nelson
Career
Per 600 PA
3.59
3.59
Aaron Laffey
Career
Per 600 PA
0
0
Roger Nelson
Careerverified
Per 600 PAverified
0.19
0.19
Aaron Laffey
Career
Per 600 PA
0
0
Roger Nelson
Careerverified
Per 600 PAverified
16
46.15
Aaron Laffey
Career
Per 600 PA
0
0
Roger Nelson
Careerverified
Per 600 PAverified
1
2.88
Aaron Laffey
Careerverified
Per 600 PAverified
0
0
Roger Nelson
Career
Per 600 PA
1
2.88
Aaron Laffey
Career
Per 600 PA
0
0
Roger Nelson
Career
Per 600 PA
0
0
Aaron Laffey
Career
Per 600 PA
0
0
Roger Nelson
Career
Per 600 PA
0
0
Aaron Laffey
Career
Per 600 PA
0
0
Roger Nelson
Career
Per 600 PA
0
0
Aaron Laffey
Career
Per 600 PA
Roger Nelson
Career
Per 600 PA