best improvement in batting average from rookie to second year

John Cassidy had the highest batting average by a rookie in his 2nd season, with an average of .378.

Interpreted as:
best improvement in batting average with a minimum of 3.1 PA per team game from rookie to second year
NAMEAVGSEASONTMGABRH2B3BHRRBIBBHBPSOSBCSPATBXBHSHSFIBBGIDPOBPSLGOPSwRCWRAAwOBAwRC+BRAA
1John Cassidy
J. Cassidy
.378
1877
60
251
43
95
10
5
0
27
3
3
254
115
15
.458
56
19.5
.387
155
21.1
2Benny Kauff
B. Kauff
.370
1914
154
571
120
211
44
13
8
95
72
8
55
75
667
305
65
16
.447
.534
.981
136
66
.465
167
52.6
3Dave Orr
D. Orr
.354
1884
110
458
82
162
32
13
9
112
5
1
464
247
54
.362
.539
.901
112
44.3
.402
163
43.9
4Cupid Childs
C. Childs
.345
1890
126
493
109
170
33
14
2
89
72
6
56
571
237
49
.434
.481
.915
135
47.8
.438
161
52.9
5Earle Combs
E. Combs
.342
1925
150
593
117
203
36
13
3
62
65
4
43
12
13
673
274
52
11
.411
.462
.873
116
27.8
.403
124
22.6
6Jimmy Bannon
J. Bannon
.336
1894
128
494
130
166
29
10
13
114
62
4
42
47
566
254
52
6
.414
.514
.928
127
24.6
.422
114
14.9
7Socks Seybold
S. Seybold
.334
1901
114
449
74
150
24
14
8
90
40
7
44
15
504
226
46
8
.397
.503
.901
101
35.5
.418
138
27.2
8Fred Lynn
F. Lynn
.331
1975
145
528
103
175
47
7
21
105
62
3
90
10
5
605
299
75
6
6
10
11
.401
.566
.967
114
48.1
.427
161
41.5
9Ed Swartwood
E. Swartwood
.331
1882
77
329
87
109
18
11
4
21
350
161
33
.489
79
29.6
.386
163
30.4
10Rico Carty
R. Carty
.330
1964
133
455
72
150
28
4
22
88
43
3
78
1
2
505
252
54
0
4
4
16
.388
.554
.942
93
39.3
.410
166
37.3
11Hal Trosky Sr.
H. Trosky Sr.
.330
1934
154
625
117
206
45
9
35
142
58
2
49
2
2
685
374
89
0
.388
.598
.987
139
52.9
.437
143
41.2
12Emmet Heidrick
E. Heidrick
.328
1899
146
591
109
194
21
14
2
82
34
3
21
55
648
249
37
20
.368
.421
.789
106
16.7
.376
113
11.9
13Minnie Minoso
M. Minoso
.326
1951
TOT
146
530
112
173
34
14
10
76
72
16
42
31
10
622
265
58
4
12
.422
.500
.922
115
41.8
.423
150
38.9
14Mike Trout
M. Trout
.326
2012
139
559
129
182
27
8
30
83
67
6
139
49
5
639
315
65
0
7
4
7
.399
.564
.963
121
48.2
.409
167
50
15Kevin Seitzer
K. Seitzer
.323
1987
161
641
105
207
33
8
15
83
80
2
85
12
7
725
301
56
1
1
0
18
.399
.470
.869
124
34.5
.383
134
31.3
16Alvin Dark
A. Dark
.322
1948
137
543
85
175
39
6
3
48
24
2
36
4
579
235
48
10
4
.353
.433
.786
79
10.1
.364
115
10.6
17Walt Dropo
W. Dropo
.322
1950
136
559
101
180
28
8
34
144
45
5
75
0
0
609
326
70
0
16
.378
.583
.961
115
39.3
.425
132
26.7
18Troy Johnston
T. Johnston
.321
2026
51
165
21
53
14
0
2
23
15
2
39
2
2
183
73
16
1
0
0
2
.385
.442
.827
29
7.8
.370
124
5.2
19Ray Grimes
R. Grimes
.321
1921
147
530
91
170
38
6
6
79
70
6
55
5
8
622
238
50
16
.406
.449
.855
103
25
.397
130
23.6
20Joe Vosmik
J. Vosmik
.320
1931
149
591
80
189
36
14
7
117
38
2
30
7
7
640
274
57
9
.363
.464
.827
98
19.2
.377
109
7.8
21Joe Sewell
J. Sewell
.318
1921
154
572
101
182
36
12
4
93
80
11
17
7
6
683
254
52
20
.412
.444
.856
114
28.3
.399
120
18.4
22Mike Piazza
M. Piazza
.318
1993
149
547
81
174
24
2
35
112
46
3
86
3
4
602
307
61
0
6
6
10
.370
.561
.932
108
36.3
.401
150
37.5
23Dick Allen
D. Allen
.318
1964
162
632
125
201
38
13
29
91
67
0
138
3
4
708
352
80
6
3
13
8
.382
.557
.939
128
52.3
.405
162
49.5
24Duke Kenworthy
D. Kenworthy
.317
1914
146
545
93
173
40
14
15
91
36
11
44
37
611
286
69
19
.372
.525
.896
107
43.2
.424
150
36
25Dustin Pedroia
D. Pedroia
.317
2007
139
520
86
165
39
1
8
50
47
7
42
7
1
581
230
48
5
2
1
8
.380
.442
.823
88
16
.364
118
12.8

More MLB News

MLB 2026 Batting Leaders

MLB 2026 Pitching Leaders

MLB Fantasy 2026

MLB 2026 Betting

MLB 2026 Standings

NL EastWLPCTGB
37
18
.673
29
27
.518
8.5
29
28
.509
9.0
26
31
.456
12.0
22
33
.400
15.0
NL CentralWLPCTGB
33
20
.623
29
25
.537
4.5
29
25
.537
4.5
29
26
.527
5.0
29
26
.527
5.0
NL WestWLPCTGB
35
20
.636
31
24
.564
4.0
31
24
.564
4.0
22
34
.393
13.5
20
36
.357
15.5
AL EastWLPCTGB
34
18
.654
33
22
.600
2.5
27
29
.482
9.0
25
30
.455
10.5
22
31
.415
12.5
AL CentralWLPCTGB
33
25
.569
27
27
.500
4.0
27
28
.491
4.5
22
33
.400
9.5
22
34
.393
10.0
AL WestWLPCTGB
28
29
.491
27
29
.482
0.5
25
29
.463
1.5
24
32
.429
3.5
21
35
.375
6.5

MLB 2026 Scores & Schedule

Scores

DATEMATCHUPSCORE
Wed
5/13
@
0-7
Wed
5/13
@
2-4
Wed
5/13
@
10-4
Wed
5/13
@
8-7
Wed
5/13
@
1-3

Schedule

DATEMATCHUPTIME (ET)
Wed
5/27
@
10:10 PM
Thu
5/28
@
1:10 PM
Thu
5/28
@
2:10 PM
Thu
5/28
@
4:10 PM
Thu
5/28
@
6:35 PM