The National League and the American Association faced each other in a World's Championship Series at the end of the season to determine an overall champion.

1890 Regular Season Results

Date    OpponentResultScoreRecord
4/19vs Chi. ColtsL  4-5 0-1
4/21vs Chi. ColtsW  9-4 1-1
4/22vs Chi. ColtsL  3-13 1-2
4/23vs Chi. ColtsW  9-6 2-2
4/25at PittsburgW  10-1 3-2
4/28at PittsburgL  2-6 3-3
4/29at ClevelandL  2-3 3-4
4/30at ClevelandW  4-0 4-4
5/1at ClevelandW  12-11 5-4
5/2at ClevelandW  6-1 6-4
5/5at Chi. ColtsT  2-2 6-4
5/6at Chi. ColtsL  5-6 6-5
5/7at Chi. ColtsW  5-2 7-5
5/8at Chi. ColtsL  9-18 7-6
5/9vs PittsburgW  10-5 8-6
5/10vs PittsburgW  11-1 9-6
5/12vs PittsburgL  3-5 9-7
5/13vs PittsburgL  0-4 9-8
5/16at Phil. PhilliesW  5-1 10-8
5/17at Phil. PhilliesL  4-6 10-9
5/19at Phil. PhilliesW  9-6 11-9
5/21at BrooklynL  4-19 11-10
5/22at BrooklynL  4-6 11-11
5/23at BrooklynW  7-2 12-11
5/24at BostonW  7-5 13-11
5/26at BostonW  4-2 14-11
5/28at BostonL  0-1 14-12
5/29at NY GiantsW  7-6 15-12
5/30at NY GiantsW  3-1 16-12
5/30at NY GiantsW  1-0 17-12
5/31at NY GiantsW  12-8 18-12
6/2at ClevelandW  4-3 19-12
6/3at ClevelandW  5-2 20-12
6/4at ClevelandL  1-3 20-13
6/5vs PittsburgW  9-1 21-13
6/6vs PittsburgW  9-5 22-13
6/7vs PittsburgW  6-2 23-13
6/9vs PittsburgW  8-2 24-13
6/10vs PittsburgW  9-2 25-13
6/11vs PittsburgW  5-1 26-13
6/12vs ClevelandW  8-0 27-13
6/13vs ClevelandW  7-5 28-13
6/14vs ClevelandW  9-0 29-13
6/16vs ClevelandW  7-3 30-13
6/17vs Chi. ColtsW  3-0 31-13
6/18vs Chi. ColtsW  6-2 32-13
6/19vs Chi. ColtsW  4-2 33-13
6/20vs BostonL  2-4 33-14
6/21vs BostonW  4-1 34-14
6/23vs BostonL  4-12 34-15
6/24vs BostonL  0-2 34-16
6/25vs NY GiantsW  2-1 35-16
6/26vs NY GiantsW  8-5 36-16
6/27vs NY GiantsL  4-8 36-17
6/28vs NY GiantsW  12-3 37-17
6/30vs BrooklynL  6-8 37-18
7/1vs BrooklynW  3-0 38-18
7/2vs BrooklynW  6-1 39-18
7/3vs BrooklynW  9-6 40-18
7/4vs Phil. PhilliesL  2-11 40-19
7/4vs Phil. PhilliesW  7-1 41-19
7/5vs Phil. PhilliesL  6-9 41-20
7/7at Phil. PhilliesW  3-1 42-20
7/8at Phil. PhilliesL  4-9 42-21
7/9at Phil. PhilliesL  1-6 42-22
7/10at BrooklynL  3-5 42-23
7/11at BrooklynL  2-9 42-24
7/12at BrooklynL  1-7 42-25
7/14at NY GiantsW  6-1 43-25
7/15at NY GiantsL  3-7 43-26
7/16at NY GiantsL  8-12 43-27
7/17at BostonL  3-6 43-28
7/18at BostonL  3-9 43-29
7/19at BostonL  2-6 43-30
7/21vs BrooklynW  20-11 44-30
7/22vs BrooklynL  5-16 44-31
7/24vs NY GiantsW  7-5 45-31
7/25vs NY GiantsW  10-6 46-31
7/26vs NY GiantsW  5-1 47-31
7/28vs BostonL  1-2 47-32
7/29vs BostonW  11-3 48-32
7/30vs BostonL  0-3 48-33
7/31vs Phil. PhilliesW  8-6 49-33
8/1vs Phil. PhilliesL  4-5 49-34
8/2vs Phil. PhilliesW  11-3 50-34
8/4vs Phil. PhilliesW  7-5 51-34
8/6vs PittsburgW  16-3 52-34
8/7vs PittsburgW  23-17 53-34
8/8vs PittsburgW  9-6 54-34
8/9at ClevelandL  4-5 54-35
8/11at ClevelandW  9-7 55-35
8/12at ClevelandW  2-1 56-35
8/13vs Chi. ColtsL  4-6 56-36
8/14vs Chi. ColtsW  2-1 57-36
8/15vs Chi. ColtsL  2-9 57-37
8/16vs ClevelandW  10-0 58-37
8/18vs ClevelandW  14-3 59-37
8/21at NY GiantsW  5-3 60-37
8/22at NY GiantsL  3-4 60-38
8/23at NY GiantsL  3-7 60-39
8/25at BrooklynW  4-1 61-39
8/26at BrooklynL  0-3 61-40
8/27at BrooklynW  8-1 62-40
8/28at BostonW  7-0 63-40
8/29at BostonL  1-2 63-41
8/30at BostonW  6-5 64-41
9/1at Phil. PhilliesL  1-2 64-42
9/1at Phil. PhilliesW  8-5 65-42
9/2at Phil. PhilliesL  12-14 65-43
9/4at Chi. ColtsL  4-7 65-44
9/5at Chi. ColtsL  8-12 65-45
9/6at Chi. ColtsL  0-1 65-46
9/9vs ClevelandL  4-8 65-47
9/11vs PittsburgW  2-0 66-47
9/11vs PittsburgW  4-1 67-47
9/12vs PittsburgW  7-3 68-47
9/12vs PittsburgW  11-1 69-47
9/13vs PittsburgL  6-8 69-48
9/15at Chi. ColtsL  3-6 69-49
9/16at Chi. ColtsL  2-5 69-50
9/17at Chi. ColtsT  6-6 69-50
9/18at Chi. ColtsL  4-8 69-51
9/18at Chi. ColtsW  10-5 70-51
9/19vs Phil. PhilliesW  5-4 71-51
9/20vs Phil. PhilliesW  9-1 72-51
9/22vs Phil. PhilliesL  5-7 72-52
9/23vs Phil. PhilliesW  4-2 73-52
9/24vs BrooklynL  1-5 73-53
9/27vs NY GiantsL  3-15 73-54
9/29vs NY GiantsW  5-4 74-54
9/30vs NY GiantsW  5-2 75-54
10/1vs BostonW  5-3 76-54
10/2vs BostonL  3-7 76-55
10/3vs BostonW  8-2 77-55