The Oakland Athletics played 27 games in the month of September in the 2009 season. Here are the results of those games:
- September 1, 2009 vs. Chicago White Sox - Athletics lost 3-4
- September 2, 2009 vs. Chicago White Sox - Athletics won 5-3
- September 3, 2009 vs. Seattle Mariners - Athletics lost 1-7
- September 5, 2009 vs. Minnesota Twins - Athletics won 2-1
- September 6, 2009 vs. Texas Rangers - Athletics won 12-3
- September 8, 2009 vs. Chicago White Sox - Athletics won 11-4
- September 9, 2009 vs. Seattle Mariners - Athletics lost 3-4
- September 10, 2009 vs. Texas Rangers - Athletics won 5-3
- September 11, 2009 vs. Cleveland Indians - Athletics won 2-1
- September 12, 2009 vs. Cleveland Indians - Athletics lost 1-7
- September 14, 2009 vs. Texas Rangers - Athletics won 9-3
- September 15, 2009 vs. Los Angeles Angels - Athletics lost 3-8
- September 16, 2009 vs. Los Angeles Angels - Athletics won 4-1
- September 17, 2009 vs. Seattle Mariners - Athletics won 5-2
- September 18, 2009 vs. Texas Rangers - Athletics lost 3-6
- September 20, 2009 vs. Cleveland Indians - Athletics won 7-4
- September 21, 2009 vs. Los Angeles Angels - Athletics won 10-2
- September 22, 2009 vs. Seattle Mariners - Athletics lost 3-4
- September 23, 2009 vs. Texas Rangers - Athletics won 5-3
- September 24, 2009 vs. Los Angeles Angels - Athletics lost 1-7
- September 25, 2009 vs. Seattle Mariners - Athletics won 2-1
- September 26, 2009 vs. Texas Rangers - Athletics lost 3-4
- September 28, 2009 vs. Los Angeles Angels - Athletics won 4-2
- September 29, 2009 vs. Seattle Mariners - Athletics lost 1-5
- September 30, 2009 vs. Texas Rangers - Athletics won 7-2
Overall, the Athletics had a good month of September, winning 14 games and losing 11. They finished the season with a record of 81-81. Updated: September 21, 2025 at 7:15 AM