| 16,900 | Jul 27, 1990 | Boston Red Sox beat Detroit Tigers 1–0 | Title change |
| 16,899 | Jul 26, 1990 | Detroit Tigers beat Boston Red Sox 10–4 | Defense |
| 16,898 | Jul 25, 1990 | Detroit Tigers beat Baltimore Orioles 4–3 | Defense |
| 16,897 | Jul 24, 1990 | Detroit Tigers beat Baltimore Orioles 8–2 | Title change |
| 16,896 | Jul 23, 1990 | Baltimore Orioles beat Detroit Tigers 13–3 | Defense |
| 16,895 | Jul 22, 1990 | Baltimore Orioles beat Chicago White Sox 9–3 | Defense |
| 16,894 | Jul 21, 1990 | Baltimore Orioles beat Chicago White Sox 2–0 | Defense |
| 16,893 | Jul 20, 1990 | Baltimore Orioles beat Chicago White Sox 3–2 | Defense |
| 16,892 | Jul 19, 1990 | Baltimore Orioles beat Chicago White Sox 4–1 | Title change |
| 16,891 | Jul 18, 1990 | Chicago White Sox beat Detroit Tigers 7–5 | Defense |
| 16,890 | Jul 17, 1990 | Chicago White Sox beat Detroit Tigers 7–3 | Title change |
| 16,889 | Jul 16, 1990 | Detroit Tigers beat Chicago White Sox 5–4 | Defense |
| 16,888 | Jul 15, 1990 | Detroit Tigers beat Texas Rangers 3–2 | Title change |
| 16,887 | Jul 14, 1990 | Texas Rangers beat Detroit Tigers 5–3 | Defense |
| 16,886 | Jul 13, 1990 | Texas Rangers beat Detroit Tigers 7–6 | Defense |
| 16,885 | Jul 12, 1990 | Texas Rangers beat Detroit Tigers 11–1 | Title change |
| 16,884 | Jul 8, 1990 | Detroit Tigers beat Kansas City Royals 10–4 | Title change |
| 16,883 | Jul 7, 1990 | Kansas City Royals beat Detroit Tigers 4–0 | Title change |
| 16,882 | Jul 6, 1990 | Detroit Tigers beat Kansas City Royals 4–0 | Title change |
| 16,881 | Jul 5, 1990 | Kansas City Royals beat Detroit Tigers 15–3 | Title change |
| 16,880 | Jul 4, 1990 | Detroit Tigers beat Chicago White Sox 10–7 | Defense |
| 16,879 | Jul 3, 1990 | Detroit Tigers beat Chicago White Sox 13–7 | Title change |
| 16,878 | Jul 2, 1990 | Chicago White Sox beat Detroit Tigers 5–4 | Defense |
| 16,877 | Jul 1, 1990 | Chicago White Sox beat New York Yankees 4–0 | Title change |
| 16,876 | Jun 30, 1990 | New York Yankees beat Chicago White Sox 10–7 | Title change |
| 16,875 | Jun 29, 1990 | Chicago White Sox beat New York Yankees 1–0 | Defense |
| 16,874 | Jun 27, 1990 | Chicago White Sox beat California Angels 5–2 | Defense |
| 16,873 | Jun 26, 1990 | Chicago White Sox beat California Angels 11–9 | Defense |
| 16,872 | Jun 25, 1990 | Chicago White Sox beat California Angels 2–0 | Defense |
| 16,871 | Jun 24, 1990 | Chicago White Sox beat Oakland Athletics 3–2 | Defense |
| 16,870 | Jun 23, 1990 | Chicago White Sox beat Oakland Athletics 5–3 | Defense |
| 16,869 | Jun 22, 1990 | Chicago White Sox beat Oakland Athletics 5–0 | Title change |
| 16,868 | Jun 20, 1990 | Oakland Athletics beat Detroit Tigers 12–7 | Title change |
| 16,867 | Jun 19, 1990 | Detroit Tigers beat Oakland Athletics 7–6 | Defense |
| 16,866 | Jun 18, 1990 | Detroit Tigers beat Oakland Athletics 7–2 | Title change |
| 16,865 | Jun 17, 1990 | Oakland Athletics beat Chicago White Sox 5–2 | Defense |
| 16,864 | Jun 16, 1990 | Oakland Athletics beat Chicago White Sox 12–3 | Defense |
| 16,863 | Jun 15, 1990 | Oakland Athletics beat Chicago White Sox 5–4 | Title change |
| 16,862 | Jun 14, 1990 | Chicago White Sox beat Oakland Athletics 3–2 | Title change |
| 16,861 | Jun 13, 1990 | Oakland Athletics beat Texas Rangers 3–2 | Title change |
| 16,860 | Jun 12, 1990 | Texas Rangers beat Oakland Athletics 6–5 | Defense |
| 16,859 | Jun 11, 1990 | Texas Rangers beat Oakland Athletics 5–0 | Defense |
| 16,858 | Jun 10, 1990 | Texas Rangers beat California Angels 2–1 | Title change |
| 16,857 | Jun 9, 1990 | California Angels beat Texas Rangers 8–3 | Title change |
| 16,856 | Jun 8, 1990 | Texas Rangers beat California Angels 10–6 | Title change |
| 16,855 | Jun 7, 1990 | California Angels beat Kansas City Royals 2–1 | Defense |
| 16,854 | Jun 6, 1990 | California Angels beat Kansas City Royals 6–2 | Defense |
| 16,853 | Jun 5, 1990 | California Angels beat Kansas City Royals 6–4 | Title change |
| 16,852 | Jun 3, 1990 | Kansas City Royals beat Oakland Athletics 8–2 | Defense |
| 16,851 | Jun 2, 1990 | Kansas City Royals beat Oakland Athletics 10–4 | Title change |
| 16,850 | Jun 1, 1990 | Oakland Athletics beat Kansas City Royals 4–3 | Defense |
| 16,849 | May 31, 1990 | Oakland Athletics beat Kansas City Royals 6–4 | Defense |
| 16,848 | May 30, 1990 | Oakland Athletics beat Toronto Blue Jays 8–5 | Title change |
| 16,847 | May 29, 1990 | Toronto Blue Jays beat Oakland Athletics 2–1 | Defense |
| 16,846 | May 28, 1990 | Toronto Blue Jays beat Oakland Athletics 1–0 | Title change |
| 16,845 | May 26, 1990 | Oakland Athletics beat Cleveland Indians 6–3 | Defense |
| 16,844 | May 25, 1990 | Oakland Athletics beat Cleveland Indians 5–2 | Defense |
| 16,843 | May 24, 1990 | Oakland Athletics beat Milwaukee Brewers 13–1 | Defense |
| 16,842 | May 23, 1990 | Oakland Athletics beat Milwaukee Brewers 12–5 | Title change |
| 16,841 | May 22, 1990 | Milwaukee Brewers beat Seattle Mariners 3–2 | Title change |
| 16,840 | May 21, 1990 | Seattle Mariners beat Milwaukee Brewers 9–4 | Title change |
| 16,839 | May 20, 1990 | Milwaukee Brewers beat Oakland Athletics 5–2 | Title change |
| 16,838 | May 19, 1990 | Oakland Athletics beat Milwaukee Brewers 9–1 | Title change |
| 16,837 | May 18, 1990 | Milwaukee Brewers beat Oakland Athletics 5–0 | Defense |
| 16,836 | May 17, 1990 | Milwaukee Brewers beat California Angels 6–3 | Defense |
| 16,835 | May 16, 1990 | Milwaukee Brewers beat California Angels 13–5 | Title change |
| 16,834 | May 15, 1990 | California Angels beat Milwaukee Brewers 8–3 | Defense |
| 16,833 | May 13, 1990 | California Angels beat Boston Red Sox 8–4 | Title change |
| 16,832 | May 12, 1990 | Boston Red Sox beat California Angels 7–1 | Defense |
| 16,831 | May 11, 1990 | Boston Red Sox beat California Angels 3–2 | Defense |
| 16,830 | May 9, 1990 | Boston Red Sox beat Seattle Mariners 4–1 | Title change |
| 16,829 | May 8, 1990 | Seattle Mariners beat Boston Red Sox 2–1 | Title change |
| 16,828 | May 7, 1990 | Boston Red Sox beat Seattle Mariners 5–4 | Title change |
| 16,827 | May 6, 1990 | Seattle Mariners beat Baltimore Orioles 5–4 | Defense |
| 16,826 | May 5, 1990 | Seattle Mariners beat Baltimore Orioles 5–2 | Title change |
| 16,825 | May 4, 1990 | Baltimore Orioles beat Seattle Mariners 9–8 | Title change |
| 16,824 | May 3, 1990 | Seattle Mariners beat California Angels 10–8 | Title change |
| 16,823 | May 2, 1990 | California Angels beat Baltimore Orioles 3–0 | Defense |
| 16,822 | May 1, 1990 | California Angels beat Baltimore Orioles 7–1 | Title change |
| 16,821 | Apr 30, 1990 | Baltimore Orioles beat California Angels 2–1 | Defense |
| 16,820 | Apr 29, 1990 | Baltimore Orioles beat Seattle Mariners 5–4 | Title change |
| 16,819 | Apr 28, 1990 | Seattle Mariners beat Baltimore Orioles 4–3 | Defense |
| 16,818 | Apr 27, 1990 | Seattle Mariners beat Baltimore Orioles 4–3 | Defense |
| 16,817 | Apr 26, 1990 | Seattle Mariners beat New York Yankees 6–2 | Defense |
| 16,816 | Apr 25, 1990 | Seattle Mariners beat New York Yankees 5–2 | Title change |
| 16,815 | Apr 24, 1990 | New York Yankees beat Seattle Mariners 6–2 | Title change |
| 16,814 | Apr 22, 1990 | Seattle Mariners beat Oakland Athletics 5–2 | Title change |
| 16,813 | Apr 21, 1990 | Oakland Athletics beat Seattle Mariners 7–6 | Title change |
| 16,812 | Apr 20, 1990 | Seattle Mariners beat Oakland Athletics 6–1 | Title change |
| 16,811 | Apr 19, 1990 | Oakland Athletics beat Seattle Mariners 5–2 | Defense |
| 16,810 | Apr 18, 1990 | Oakland Athletics beat California Angels 3–1 | Defense |
| 16,809 | Apr 17, 1990 | Oakland Athletics beat California Angels 7–5 | Title change |
| 16,808 | Apr 15, 1990 | California Angels beat Minnesota Twins 4–1 | Defense |
| 16,807 | Apr 14, 1990 | California Angels beat Minnesota Twins 7–5 | Title change |
| 16,806 | Apr 13, 1990 | Minnesota Twins beat California Angels 7–4 | Title change |
| 16,805 | Apr 12, 1990 | California Angels beat Minnesota Twins 3–1 | Title change |
| 16,804 | Apr 11, 1990 | Minnesota Twins beat Oakland Athletics 3–0 | Title change |
| 16,803 | Apr 10, 1990 | Oakland Athletics beat Minnesota Twins 5–3 | Defense |
| 16,802 | Apr 9, 1990 | Oakland Athletics beat Minnesota Twins 8–3 | Defense |
| 16,801 | Oct 28, 1989 | Oakland Athletics beat San Francisco Giants 9–6 Playoffs | Defense |