Lou Mahaffey vs. Billy Norman — Career Comparison

Lou Mahaffey
Pre-GenerationalKentuckyThrows RightBats RightNorth AmericaLouisville ColonelsNational LeagueRelief Pitcher
Billy Norman
Lost GenerationKansasNorth AmericaChicago Leland GiantsWestern League (Independent)Starting Pitcher

Billy Norman built a career as a starting pitcher and Lou Mahaffey as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Lou Mahaffey posted stronger surface numbers — ERA 3 and WHIP 1.667 compared to 3.4 and 1.248 for Billy Norman. By the career numbers, Lou Mahaffey had the better of this cross-role comparison — though era context would sharpen the verdict.

Pitching Stats for Lou Mahaffey and Billy Norman

Lou Mahaffey
Career
Per 9 Innings
1
1
Billy Norman
Careerverified
Per 9 Inningsverified
3
3
Lou Mahaffey
Career
Per 9 Innings
1
1
Billy Norman
Careerverified
Per 9 Inningsverified
13
1.47
Lou Mahaffey
Career
Per 9 Innings
1
1
Billy Norman
Careerverified
Per 9 Inningsverified
10
1.13
Lou Mahaffey
Career
Per 9 Innings
0
0
Billy Norman
Careerverified
Per 9 Inningsverified
2
0.23
Lou Mahaffey
Careerverified
Per 9 Innings
1
1
Billy Norman
Career
Per 9 Inningsverified
8
0.91
Lou Mahaffey
Career
Per 9 Innings
0
0
Billy Norman
Careerverified
Per 9 Inningsverified
20
20
Lou Mahaffey
Careerverified
Per 9 Inningsverified
100
100
Billy Norman
Career
Per 9 Innings
76.92
76.92
Lou Mahaffey
Career
Per 9 Inningsverified
1
1
Billy Norman
Careerverified
Per 9 Innings
6
0.68
Lou Mahaffey
Career
Per 9 Innings
0
0
Billy Norman
Careerverified
Per 9 Inningsverified
1
0.11
Lou Mahaffey
Career
Per 9 Innings
0
0
Billy Norman
Career
Per 9 Innings
0
0
Lou Mahaffey
Careerverified
Per 9 Inningsverified
3
3
Billy Norman
Career
Per 9 Innings
30
3.4
Lou Mahaffey
Careerverified
Per 9 Inningsverified
3
3
Billy Norman
Career
Per 9 Innings
3.4
3.4
Lou Mahaffey
Career
Per 9 Innings
4.55
4.55
Billy Norman
Careerverified
Per 9 Inningsverified
2.89
2.89
Lou Mahaffey
Career
Per 9 Innings
4.44
4.44
Billy Norman
Careerverified
Per 9 Inningsverified
2.97
2.97
Lou Mahaffey
Career
Per 9 Innings
0.278
0.278
Billy Norman
Careerverified
Per 9 Inningsverified
0.255
0.255
Lou Mahaffey
Career
Per 9 Innings
27
27
Billy Norman
Careerverified
Per 9 Innings
238
27
Lou Mahaffey
Career
Per 9 Innings
9
9
Billy Norman
Careerverified
Per 9 Innings
79.1
9
Lou Mahaffey
Careerverified
Per 9 Innings
10
10
Billy Norman
Career
Per 9 Inningsverified
82
9.3
Lou Mahaffey
Career
Per 9 Innings
10
10
Billy Norman
Careerverified
Per 9 Inningsverified
9.3
9.3
Lou Mahaffey
Careerverified
Per 9 Inningsverified
0
0
Billy Norman
Career
Per 9 Innings
2
0.23
Lou Mahaffey
Careerverified
Per 9 Inningsverified
0
0
Billy Norman
Career
Per 9 Innings
0.23
0.23
Lou Mahaffey
Careerverified
Per 9 Inningsverified
0
0
Billy Norman
Career
Per 9 Innings
0.15
0.15
Lou Mahaffey
Careerverified
Per 9 Innings
5
5
Billy Norman
Career
Per 9 Inningsverified
17
1.93
Lou Mahaffey
Career
Per 9 Innings
0
0
Billy Norman
Career
Per 9 Innings
0
0
Lou Mahaffey
Career
Per 9 Innings
5
5
Billy Norman
Careerverified
Per 9 Inningsverified
1.93
1.93
Lou Mahaffey
Career
Per 9 Innings
1
1
Billy Norman
Careerverified
Per 9 Inningsverified
41
4.65
Lou Mahaffey
Career
Per 9 Innings
1
1
Billy Norman
Careerverified
Per 9 Inningsverified
4.65
4.65
Lou Mahaffey
Career
Per 9 Innings
1
1
Billy Norman
Careerverified
Per 9 Inningsverified
3.15
3.15
Lou Mahaffey
Career
Per 9 Innings
0.667
0.667
Billy Norman
Careerverified
Per 9 Inningsverified
0.731
0.731
Lou Mahaffey
Career
Per 9 Innings
1
1
Billy Norman
Careerverified
Per 9 Inningsverified
0
0
Lou Mahaffey
Careerverified
Per 9 Inningsverified
0
0
Billy Norman
Career
Per 9 Innings
1
0.11
Lou Mahaffey
Career
Per 9 Innings
0
0
Billy Norman
Career
Per 9 Innings
0
0
Lou Mahaffey
Career
Per 9 Inningsverified
41
41
Billy Norman
Careerverified
Per 9 Innings
350
39.71
Lou Mahaffey
Career
Per 9 Innings
0
0
Billy Norman
Career
Per 9 Innings
0
0
Lou Mahaffey
Careerverified
Per 9 Innings
9
9
Billy Norman
Career
Per 9 Inningsverified
43
4.88
Lou Mahaffey
Career
Per 9 Innings
9
9
Billy Norman
Careerverified
Per 9 Inningsverified
4.88
4.88
Lou Mahaffey
Careerverified
Per 9 Inningsverified
0
0
Billy Norman
Career
Per 9 Innings
10
1.13
Lou Mahaffey
Career
Per 9 Innings
0
0
Billy Norman
Career
Per 9 Innings
0
0
Lou Mahaffey
Career
Per 9 Innings
0
0
Billy Norman
Careerverified
Per 9 Inningsverified
2
0.23
Lou Mahaffey
Career
Per 9 Innings
1.667
1.667
Billy Norman
Careerverified
Per 9 Inningsverified
1.248
1.248
Lou Mahaffey
Career
Per 9 Innings
36
36
Billy Norman
Careerverified
Per 9 Inningsverified
322
36.53
Lou Mahaffey
Career
Per 9 Innings
9
9
Billy Norman
Careerverified
Per 9 Inningsverified
3.31
3.31
Lou Mahaffey
Careerverified
Per 9 Inningsverified
0.286
0.286
Billy Norman
Career
Per 9 Innings
0.287
0.287
Lou Mahaffey
Careerverified
Per 9 Inningsverified
41
41
Billy Norman
Career
Per 9 Innings
39.71
39.71

Fielding Stats for Lou Mahaffey and Billy Norman

Lou Mahaffey
Career
Per 9 Innings
1
1
Billy Norman
Careerverified
Per 9 Inningsverified
3
3
Lou Mahaffey
Career
Per 9 Innings
1
1
Billy Norman
Careerverified
Per 9 Inningsverified
13
1.4
Lou Mahaffey
Career
Per 9 Innings
0
0
Billy Norman
Careerverified
Per 9 Inningsverified
2
0.22
Lou Mahaffey
Career
Per 9 Innings
27
27
Billy Norman
Careerverified
Per 9 Innings
250
27
Lou Mahaffey
Career
Per 9 Innings
9
9
Billy Norman
Careerverified
Per 9 Innings
83.1
9
Lou Mahaffey
Career
Per 9 Innings
0
0
Billy Norman
Careerverified
Per 9 Inningsverified
1
0.11
Lou Mahaffey
Career
Per 9 Innings
1
1
Billy Norman
Careerverified
Per 9 Inningsverified
16
1.73
Lou Mahaffey
Careerverified
Per 9 Inningsverified
0
0
Billy Norman
Career
Per 9 Innings
2
0.22
Lou Mahaffey
Career
Per 9 Innings
1
1
Billy Norman
Careerverified
Per 9 Inningsverified
19
2.05
Lou Mahaffey
Career
Per 9 Innings
1
1
Billy Norman
Careerverified
Per 9 Inningsverified
17
1.84
Lou Mahaffey
Careerverified
Per 9 Inningsverified
100
100
Billy Norman
Career
Per 9 Innings
89.47
89.47
Lou Mahaffey
Career
Per 9 Innings
1
1
Billy Norman
Careerverified
Per 9 Inningsverified
1.308
1.308
Lou Mahaffey
Career
Per 9 Innings
0
0
Billy Norman
Careerverified
Per 9 Inningsverified
15.38
15.38
Lou Mahaffey
Career
Per 9 Innings
0
0
Billy Norman
Careerverified
Per 9 Inningsverified
1
0.11
Lou Mahaffey
Career
Per 9 Innings
0
0
Billy Norman
Career
Per 9 Innings
0
0
Lou Mahaffey
Career
Per 9 Innings
0
0
Billy Norman
Career
Per 9 Innings
0
0
Lou Mahaffey
Career
Per 9 Innings
0
0
Billy Norman
Career
Per 9 Innings
0
0
Lou Mahaffey
Career
Per 9 Innings
0
0
Billy Norman
Career
Per 9 Innings
0
0

Hitting Stats for Lou Mahaffey and Billy Norman

Lou Mahaffey
Career
Per 600 PA
1
1
Billy Norman
Careerverified
Per 600 PAverified
3
3
Lou Mahaffey
Career
Per 600 PA
1
120
Billy Norman
Careerverified
Per 600 PAverified
13
243.75
Lou Mahaffey
Career
Per 600 PA
5
600
Billy Norman
Careerverified
Per 600 PA
32
600
Lou Mahaffey
Career
Per 600 PA
4
480
Billy Norman
Careerverified
Per 600 PAverified
28
525
Lou Mahaffey
Career
Per 600 PA
0
0
Billy Norman
Careerverified
Per 600 PAverified
0.036
0.036
Lou Mahaffey
Careerverified
Per 600 PAverified
0.3
0.3
Billy Norman
Career
Per 600 PA
0.219
0.219
Lou Mahaffey
Career
Per 600 PA
0
0
Billy Norman
Careerverified
Per 600 PAverified
1
18.75
Lou Mahaffey
Career
Per 600 PA
0
0
Billy Norman
Careerverified
Per 600 PAverified
1
18.75
Lou Mahaffey
Career
Per 600 PA
0
0
Billy Norman
Career
Per 600 PA
0
0
Lou Mahaffey
Career
Per 600 PA
0
0
Billy Norman
Career
Per 600 PA
0
0
Lou Mahaffey
Career
Per 600 PA
0
0
Billy Norman
Career
Per 600 PA
0
0
Lou Mahaffey
Career
Per 600 PA
0
0
Billy Norman
Career
Per 600 PA
0
0
Lou Mahaffey
Career
Per 600 PA
Billy Norman
Career
Per 600 PA
0
0
Lou Mahaffey
Career
Per 600 PA
0
0
Billy Norman
Career
Per 600 PA
0
0
Lou Mahaffey
Career
Per 600 PA
Billy Norman
Career
Per 600 PA
0
0
Lou Mahaffey
Career
Per 600 PAverified
0.03
3.21
Billy Norman
Careerverified
Per 600 PA
0.12
2.2
Lou Mahaffey
Career
Per 600 PA
0
0
Billy Norman
Careerverified
Per 600 PAverified
1
18.75
Lou Mahaffey
Career
Per 600 PAverified
1
120
Billy Norman
Careerverified
Per 600 PA
3
56.25
Lou Mahaffey
Careerverified
Per 600 PAverified
0.2
0.2
Billy Norman
Career
Per 600 PA
0.1
0.1
Lou Mahaffey
Career
Per 600 PA
0
0
Billy Norman
Careerverified
Per 600 PAverified
0.036
0.036
Lou Mahaffey
Careerverified
Per 600 PAverified
0.2
0.2
Billy Norman
Career
Per 600 PA
0.136
0.136
Lou Mahaffey
Career
Per 600 PA
0
0
Billy Norman
Career
Per 600 PA
0
0
Lou Mahaffey
Careerverified
Per 600 PAverified
0.09
0.09
Billy Norman
Career
Per 600 PA
0.054
0.054
Lou Mahaffey
Careerverified
Per 600 PAverified
0.25
0.25
Billy Norman
Career
Per 600 PA
0.111
0.111
Lou Mahaffey
Career
Per 600 PA
0
0
Billy Norman
Careerverified
Per 600 PAverified
0.036
0.036
Lou Mahaffey
Career
Per 600 PA
0
0
Billy Norman
Careerverified
Per 600 PAverified
2
37.5
Lou Mahaffey
Career
Per 600 PA
0
0
Billy Norman
Career
Per 600 PA
0
0
Lou Mahaffey
Career
Per 600 PA
0
0
Billy Norman
Careerverified
Per 600 PAverified
2
37.5
Lou Mahaffey
Careerverified
Per 600 PAverified
-0.09
-11.33
Billy Norman
Career
Per 600 PA
-1.42
-26.63
Lou Mahaffey
Career
Per 600 PA
0
0
Billy Norman
Career
Per 600 PA
0
0
Lou Mahaffey
Career
Per 600 PAverified
1
120
Billy Norman
Careerverified
Per 600 PA
2
37.5
Lou Mahaffey
Career
Per 600 PA
0
0
Billy Norman
Career
Per 600 PA
0
0
Lou Mahaffey
Career
Per 600 PA
1
120
Billy Norman
Careerverified
Per 600 PAverified
0
0
Lou Mahaffey
Careerverified
Per 600 PAverified
5
5
Billy Norman
Career
Per 600 PA
Lou Mahaffey
Careerverified
Per 600 PAverified
1
1
Billy Norman
Career
Per 600 PA
Lou Mahaffey
Career
Per 600 PA
0
0
Billy Norman
Careerverified
Per 600 PAverified
2
37.5
Lou Mahaffey
Career
Per 600 PA
0
0
Billy Norman
Career
Per 600 PA
0
0
Lou Mahaffey
Career
Per 600 PA
0
0
Billy Norman
Career
Per 600 PA
0
0
Lou Mahaffey
Career
Per 600 PA
0
0
Billy Norman
Career
Per 600 PA
0
0
Lou Mahaffey
Career
Per 600 PA
0
0
Billy Norman
Career
Per 600 PA
0
0
Lou Mahaffey
Career
Per 600 PA
0
0
Billy Norman
Career
Per 600 PA
0
0
Lou Mahaffey
Career
Per 600 PA
Billy Norman
Career
Per 600 PA