which national league rookie left handed pitcher has the lowest era in a season

Jack Pfiester has the lowest ERA by a rookie NL left-hander, with an ERA of 1.51 in 1906.

Interpreted as:
Which national league rookie left handed pitcher has the lowest era with a minimum of 1 IP per team game in a season?
NAME ERA SEASON TM G W L W% GS SO CG SHO SV IP H ER R HR BB HBP GF IBB TBF WP K/9 BB/9 K/BB HR/9 K% BB% WHIP BABIP RA ERA- FIP FIP- H/9 PRAA
1 Jack Pfiester
J. Pfiester
1.51
1906
CHC CHC
31
20
8
.714
29
153
20
4
0
250.2
173
42
63
3
63
13
2
966
4
5.49
2.26
2.43
0.11
15.8
6.5
0.94
.232
2.26
57
2.21
80
6.21
15.4
2 Lady Baldwin
L. Baldwin
1.86
1885
DET
21
11
9
.550
20
135
19
1
1
179.1
137
37
84
2
28
1
724
8
6.78
1.41
4.82
0.10
18.6
3.9
0.92
4.22
67
1.99
66
6.88
19.8
3 Nap Rucker
N. Rucker
2.06
1907
BKN BKN
37
15
13
.536
30
131
26
4
0
275.1
242
63
94
3
80
8
7
1,090
10
4.28
2.62
1.64
0.10
12.0
7.3
1.17
.275
3.07
87
2.33
92
7.91
4.8
4 Jerry Koosman
J. Koosman
2.08
1968
NYM NYM
35
19
12
.613
34
178
17
7
0
263.2
221
61
72
16
69
8
0
7
1,058
8
6.08
2.36
2.58
0.55
16.8
6.5
1.10
.260
2.46
70
2.70
96
7.54
3.7
5 Lee Richmond
L. Richmond
2.15
1880
WOR WOR
74
32
32
.500
66
243
57
5
3
590.2
541
141
278
7
74
9
2,410
29
3.70
1.13
3.28
0.11
10.1
3.1
1.04
4.24
85
2.24
88
8.24
28.7
6 Hank Robinson
H. Robinson
2.26
1912
PIT PIT
33
12
7
.632
16
79
11
0
2
175.0
146
44
54
3
30
10
15
675
2
4.06
1.54
2.63
0.15
11.7
4.4
1.01
.259
2.78
68
2.86
83
7.51
10.9
7 Jake Weimer
J. Weimer
2.30
1903
CHC CHC
35
20
8
.714
33
128
27
3
0
282.0
241
72
111
4
104
11
2
1,184
5
4.09
3.32
1.23
0.13
10.8
8.8
1.22
.253
3.54
72
3.25
101
7.69
-2
8 George Pierce
G. Pierce
2.30
1913
CHC CHC
25
13
5
.722
21
73
14
3
0
164.0
137
42
60
4
59
3
3
664
5
4.01
3.24
1.24
0.22
11.0
8.9
1.20
.253
3.29
72
3.12
100
7.52
0.3
9 Jon Matlack
J. Matlack
2.32
1972
NYM NYM
34
15
10
.600
32
169
8
4
0
244.0
215
63
79
14
71
2
1
14
1,003
7
6.23
2.62
2.38
0.52
16.8
7.1
1.17
.269
2.91
69
2.65
81
7.93
16.5
10 Will Sawyer
W. Sawyer
2.36
1883
CLE
17
4
10
.286
15
76
15
0
0
141.0
119
37
79
1
47
2
596
13
4.85
3.00
1.62
0.06
12.8
7.9
1.18
5.04
77
3.27
106
7.60
-3.9
11 Ernie White
E. White
2.40
1941
SLN SLN
32
17
7
.708
25
117
12
3
2
210.0
169
56
72
12
70
6
6
866
3
5.01
3.00
1.67
0.51
13.5
8.1
1.14
.238
3.09
64
3.38
88
7.24
11
12 Fernando Valenzuela
F. Valenzuela
2.48
1981
LAD LAD
25
13
7
.650
25
180
11
8
0
192.1
140
53
55
11
61
1
0
4
758
4
8.42
2.85
2.95
0.51
23.7
8.0
1.05
.255
2.57
73
2.44
72
6.55
20.4
13 Dupee Shaw
D. Shaw
2.50
1883
DET
26
10
15
.400
25
73
23
1
0
227.0
238
63
135
3
44
1
974
6
2.89
1.74
1.66
0.12
7.5
4.5
1.24
5.35
80
3.36
108
9.44
-7.1
14 Eppa Rixey
E. Rixey
2.50
1912
PHN PHN
23
10
10
.500
20
59
10
3
0
162.0
147
45
57
2
54
2
3
650
8
3.28
3.00
1.09
0.11
9.1
8.3
1.24
.272
3.17
71
3.32
92
8.17
5.6
15 Curry Foley
C. Foley
2.51
1879
BOS BOS
21
9
9
.500
16
57
16
1
0
161.2
175
45
111
1
15
4
709
9
3.17
0.84
3.80
0.06
8.0
2.1
1.18
6.18
101
2.39
97
9.74
0.9
16 Sherry Smith
S. Smith
2.59
1915
BKN BKN
29
14
8
.636
20
52
11
2
2
173.2
169
50
71
3
42
5
9
713
3
2.69
2.18
1.24
0.16
7.3
5.9
1.21
.272
3.68
93
2.85
100
8.76
0.5
17 Rube Marquard
R. Marquard
2.60
1909
NYG NYG
29
5
13
.278
22
109
8
0
1
173.0
155
50
81
2
73
9
4
707
8
5.67
3.80
1.49
0.10
15.4
10.3
1.32
.298
4.21
101
2.53
95
8.06
2.5
18 Billy Campbell
B. Campbell
2.60
1908
CIN CIN
35
12
13
.480
24
73
19
2
2
221.1
203
64
99
3
44
10
10
859
3
2.97
1.79
1.66
0.12
8.5
5.1
1.12
.274
4.03
109
2.35
92
8.25
5.2
19 Cliff Melton
C. Melton
2.61
1937
NYG NYG
46
20
9
.690
27
142
14
2
7
248.0
216
72
90
9
55
6
14
1,004
2
5.15
2.00
2.58
0.33
14.1
5.5
1.09
.261
3.27
67
3.10
78
7.84
23.5
20 Ed Karger
E. Karger
2.62
1906
TOT
31
7
19
.269
22
81
17
0
1
219.2
214
64
96
0
52
9
9
875
3
3.32
2.13
1.56
0.00
9.3
5.9
1.21
.292
3.93
102
2.46
92
8.77
5.1
21 Raleigh Aitchison
R. Aitchison
2.66
1914
BKN BKN
26
12
7
.632
17
87
8
3
0
172.1
156
51
71
4
60
3
6
720
9
4.54
3.13
1.45
0.21
12.1
8.3
1.25
.269
3.71
94
2.83
93
8.15
4.1
22 Noodles Hahn
N. Hahn
2.68
1899
CIN CIN
38
23
8
.742
34
145
32
4
0
309.0
280
92
128
3
68
10
3
1,237
3
4.22
1.98
2.13
0.09
11.7
5.5
1.13
.274
3.73
69
2.88
74
8.16
34.7
23 Jaime Garcia
J. Garcia
2.70
2010
STL STL
28
13
8
.619
28
132
1
1
0
163.1
151
49
64
9
64
3
0
4
695
4
7.27
3.53
2.06
0.50
19.0
9.2
1.32
.292
3.53
69
3.40
87
8.32
9.3
24 Bill Sherdel
B. Sherdel
2.71
1918
SLN SLN
35
6
12
.333
16
40
9
1
0
182.1
174
55
78
3
49
3
14
744
0
1.97
2.42
0.82
0.15
5.4
6.6
1.22
.263
3.85
99
2.86
107
8.59
-4.1
25 Jerry Nops
J. Nops
2.81
1897
BAL BAL
30
20
6
.769
25
69
23
1
0
220.2
235
69
107
5
52
9
4
930
4
2.81
2.12
1.33
0.20
7.4
5.6
1.30
.289
4.36
65
3.82
89
9.58
11.9

More Cubs Stats

Team Rankings

HR

52

2nd

R

208

1st

SO

263

22nd

ERA

3.81

15th

2025 Division Standings
TEAM W L PCT GB
Cubs Cubs
21
13
.618
Reds Reds
18
16
.529
3.0
Brewers Brewers
16
18
.471
5.0
Cardinals Cardinals
14
19
.424
6.5
Pirates Pirates
12
22
.353
9.0
Schedule
DATE MATCHUP TIME (ET)
Sun
5/4
CHC CHC
@
MIL MIL
2:10 PM
Mon
5/5
SFG SFG
@
CHC CHC
7:40 PM
Tue
5/6
SFG SFG
@
CHC CHC
7:40 PM
Wed
5/7
SFG SFG
@
CHC CHC
2:20 PM
Fri
5/9
CHC CHC
@
NYM NYM
7:10 PM
Last Game
MIL Brewers

16 - 18

2

Final

6

CHC Cubs

21 - 13

Sat 3 May 2025

MLB 2025 Batting Leaders

MLB 2025 Pitching Leaders

MLB Fantasy 2025

MLB 2025 Betting

MLB 2025 Division Standings

NL East W L PCT GB
Mets Mets
22
11
.667
Phillies Phillies
19
14
.576
3.0
NL Central W L PCT GB
Cubs Cubs
21
13
.618
Reds Reds
18
16
.529
3.0
NL West W L PCT GB
Dodgers Dodgers
22
10
.688
Padres Padres
21
11
.656
1.0
AL East W L PCT GB
Yankees Yankees
19
14
.576
Red Sox Red Sox
18
17
.514
2.0
AL Central W L PCT GB
Tigers Tigers
21
12
.636
Guardians Guardians
19
14
.576
2.0
AL West W L PCT GB
Mariners Mariners
20
12
.625
Astros Astros
17
15
.531
3.0

MLB 2025 Scores & Schedule

Scores

DATE MATCHUP SCORE
Thu
4/17
MIA MIA
@
PHI PHI
2-7
Thu
4/17
MIN MIN
@
ATL ATL
4-6
Fri
4/18
MIA MIA
@
PHI PHI
10-11
Fri
4/18
KCR KCR
@
DET DET
1-3
Fri
4/18
AZ AZ
@
CHC CHC
2-6

Schedule

DATE MATCHUP TIME (ET)
Sun
5/4
NYM NYM
@
STL STL
1:15 PM
Sun
5/4
KCR KCR
@
BAL BAL
1:35 PM
Sun
5/4
TBR TBR
@
NYY NYY
1:35 PM
Sun
5/4
MIN MIN
@
BOS BOS
1:35 PM
Sun
5/4
SDP SDP
@
PIT PIT
1:35 PM