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| Season Summary | 80-82, Final Rank:3, GB: 3.5 | |
| Days in First | 23 | last on Thursday, Aug 24, counts only the days a team played and was in first at the end of the day |
| 25 | last on Aug 24, counts all days of the season including off days | |
| Biggest Lead | 1.5 | last on Tuesday, May 2, for days on which they played |
| Farthest Behind | 7 | last on Wednesday, Sep 20, for days on which they played |
| Most Games over .500 | 12 | last on Thursday, Jun 8 |
| Most Games under .500 | 4 | last on Saturday, Sep 23 |
| Longest Winning Streak | 8 | Wednesday, May 31 to Thursday, Jun 8 |
| Longest Losing Streak | 6 | Saturday, Jul 1 to Thursday, Jul 6 and Friday, Aug 25 to Wednesday, Aug 30 |
| Most Runs Allowed | 16 | Monday, Apr 3 |
| Most Runs Scored | 15 | Monday, May 22 |
| Longest Game (innings) | 16 | Tuesday, Aug 29 |
| Times Shutout by Opponent | 14 | |
| Times Opponent Shutout | 10 | |
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| Rk | Gm# | Date | Tm | Opp | R | RA | Inn | W-L | Rank | GB | Win | Loss | Save | Time | Attendance | Streak | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 1 | Monday, Apr 3 | boxscore | CIN | CHC | L | 7 | 16 | 0-1 | 5 | 1.0 | Ohman | Harang | 3:33 | 42,591 | - | |||
| 2 | 2 | Wednesday, Apr 5 | boxscore | CIN | CHC | W | 8 | 6 | 1-1 | 4 | 1.5 | Arroyo | Rusch | Weathers | 2:38 | 27,287 | + | ||
| 3 | 3 | Thursday, Apr 6 | boxscore | CIN | PIT | W | 6 | 5 | 2-1 | 3 | 1.0 | White | Gonzalez | Weathers | 2:49 | 13,887 | ++ | ||
| 4 | 4 | Friday, Apr 7 | boxscore | CIN | PIT | W | 7 | 6 | 3-1 | 2 | 1.0 | Milton | Maholm | Mercker | 2:40 | 16,573 | +++ | ||
| 5 | 5 | Saturday, Apr 8 | boxscore | CIN | PIT | W | 11 | 9 | 4-1 | 2 | 1.0 | Harang | Perez | White | 3:15 | 20,244 | ++++ | ||
| 6 | 6 | Sunday, Apr 9 | boxscore | CIN | PIT | L | 3 | 5 | 4-2 | 3 | 1.0 | Santos | Williams | Hernandez | 2:45 | 22,090 | - | ||
| 7 | 7 | Tuesday, Apr 11 | boxscore | CIN | @ | CHC | W | 9 | 2 | 5-2 | 1 | Tied | Arroyo | Rusch | 2:32 | 36,708 | + | ||
| 8 | 8 | Wednesday, Apr 12 | boxscore | CIN | @ | CHC | L | 1 | 4 | 5-3 | 3 | 0.5 | Maddux | Claussen | Dempster | 2:36 | 37,252 | - | |
| 9 | 9 | Thursday, Apr 13 | boxscore | CIN | @ | CHC | W | 8 | 3 | 6-3 | 1 | Tied | Milton | Zambrano | 2:42 | 40,881 | + | ||
| 10 | 10 | Friday, Apr 14 | boxscore | CIN | @ | STL | W | 1 | 0 | 7-3 | 1 | up 0.5 | Harang | Carpenter | Weathers | 2:43 | 40,901 | ++ | |
| 11 | 11 | Saturday, Apr 15 | boxscore | CIN | @ | STL | L | 3 | 9 | 7-4 | 1 | Tied | Ponson | Williams | 2:29 | 40,752 | - | ||
| 12 | 12 | Sunday, Apr 16 | boxscore | CIN | @ | STL | L | 7 | 8 | 7-5 | 3 | 1.0 | Looper | Weathers | 3:04 | 40,068 | -- | ||
| 13 | 13 | Monday, Apr 17 | boxscore | CIN | FLA | W | 9 | 1 | 8-5 | 3 | 1.0 | Claussen | Moehler | 2:48 | 16,960 | + | |||
| 14 | 14 | Tuesday, Apr 18 | boxscore | CIN | FLA | L | 6 | 12 | 8-6 | 3 | 2.0 | Johnson | Milton | 3:22 | 19,724 | - | |||
| 15 | 15 | Wednesday, Apr 19 | boxscore | CIN | FLA | W | 9 | 8 | 9-6 | 3 | 1.0 | Coffey | Wellemeyer | 3:12 | 18,881 | + | |||
| 16 | 16 | Thursday, Apr 20 | boxscore | CIN | @ | MIL | W | 12 | 8 | 10-6 | 2 | 0.5 | Belisle | Lehr | 3:44 | 15,347 | ++ | ||
| 17 | 17 | Friday, Apr 21 | boxscore | CIN | @ | MIL | W | 3 | 1 | 11-6 | 2 | 0.5 | Arroyo | Sheets | Weathers | 2:17 | 29,825 | +++ | |
| 18 | 18 | Saturday, Apr 22 | boxscore | CIN | @ | MIL | L | 0 | 11 | 11-7 | 3 | 1.5 | Bush | Claussen | 2:35 | 35,768 | - | ||
| 19 | 19 | Sunday, Apr 23 | boxscore | CIN | @ | MIL | W | 11 | 0 | 12-7 | 2 | 1.5 | Harang | Davis | 3:09 | 29,174 | + | ||
| 20 | 20 | Monday, Apr 24 | boxscore | CIN | @ | WSN | W | 4 | 2 | 13-7 | 2 | 0.5 | Ramirez | Hernandez | Weathers | 2:38 | 19,264 | ++ | |
| 21 | 21 | Tuesday, Apr 25 | boxscore | CIN | @ | WSN | W | 6 | 5 | 14-7 | 2 | 0.5 | Williams | Traber | Weathers | 2:59 | 21,642 | +++ | |
| 22 | 22 | Wednesday, Apr 26 | boxscore | CIN | @ | WSN | W | 5 | 0 | 15-7 | 2 | 0.5 | Arroyo | Ortiz | 2:45 | 19,380 | ++++ | ||
| 23 | 23 | Friday, Apr 28 | boxscore | CIN | HOU | W | 5 | 4 | 16-7 | 1 | up 0.5 | Claussen | Oswalt | Weathers | 2:58 | 32,089 | +++++ | ||
| 24 | 24 | Saturday, Apr 29 | boxscore | CIN | HOU | W | 6 | 3 | 17-7 | 1 | up 1.0 | Harang | Pettitte | Weathers | 2:46 | 24,873 | ++++++ | ||
| 25 | 25 | Sunday, Apr 30 | boxscore | CIN | HOU | L | 2 | 3 | 17-8 | 1 | Tied | Buchholz | Ramirez | Lidge | 2:43 | 22,814 | - | ||
| 26 | 26 | Monday, May 1 | boxscore | CIN | STL | W | 6 | 1 | 18-8 | 1 | up 1.0 | Arroyo | Mulder | 2:20 | 20,900 | + | |||
| 27 | 27 | Tuesday, May 2 | boxscore | CIN | STL | W | 3 | 2 | 19-8 | 1 | up 1.5 | Coffey | Falkenborg | 2:35 | 25,127 | ++ | |||
| 28 | 28 | Wednesday, May 3 | boxscore | CIN | @ | COL | L | 0 | 3 | 19-9 | 1 | up 0.5 | Francis | Claussen | Fuentes | 2:14 | 18,214 | - | |
| 29 | 29 | Thursday, May 4 | boxscore | CIN | @ | COL | W | 7 | 1 | 20-9 | 1 | up 0.5 | Harang | Fogg | 2:33 | 18,204 | + | ||
| 30 | 30 | Friday, May 5 | boxscore | CIN | @ | ARI | L | 1 | 7 | 20-10 | 1 | up 0.5 | Webb | Ramirez | 2:15 | 21,072 | - | ||
| 31 | 31 | Saturday, May 6 | boxscore | CIN | @ | ARI | L | 1 | 3 | 20-11 | 1 | up 0.5 | Vargas | Arroyo | Valverde | 2:32 | 27,398 | -- | |
| 32 | 32 | Sunday, May 7 | boxscore | CIN | @ | ARI | W | 9 | 8 | 21-11 | 1 | up 1.0 | Williams | Hernandez | Weathers | 3:20 | 27,707 | + | |
| 33 | 33 | Tuesday, May 9 | boxscore | CIN | WSN | L | 1 | 7 | 21-12 | 1 | up 0.5 | Armas | Claussen | 2:47 | 16,716 | - | |||
| 34 | 34 | Wednesday, May 10 | boxscore | CIN | WSN | W | 9 | 6 | 22-12 | 1 | up 0.5 | Weathers | Stanton | 3:16 | 14,180 | + | |||
| 35 | 35 | Thursday, May 11 | boxscore | CIN | WSN | W | 5 | 4 | 11 | 23-12 | 1 | up 1.0 | Shackelford | Eischen | 3:35 | 15,771 | ++ | ||
| 36 | 36 | Friday, May 12 | boxscore | CIN | PHI | L | 4 | 8 | 23-13 | 1 | Tied | Madson | Ramirez | Gordon | 3:16 | 21,709 | - | ||
| 37 | 37 | Saturday, May 13 | boxscore | CIN | PHI | L | 0 | 2 | 23-14 | 2 | 1.0 | Lieber | Williams | Gordon | 2:16 | 32,620 | -- | ||
| 38 | 38 | Sunday, May 14 | boxscore | CIN | PHI | L | 1 | 2 | 12 | 23-15 | 2 | 1.0 | Geary | Hammond | Gordon | 3:26 | 19,673 | --- | |
| 39 | 39 | Tuesday, May 16 | boxscore | CIN | @ | PIT | L | 3 | 9 | 23-16 | 2 | 1.0 | Maholm | Harang | 2:46 | 14,315 | ---- | ||
| 40 | 40 | Wednesday, May 17 | boxscore | CIN | @ | PIT | L | 2 | 7 | 23-17 | 2 | 2.0 | Perez | Arroyo | 2:53 | 14,897 | ----- | ||
| 41 | 41 | Thursday, May 18 | boxscore | CIN | @ | PIT | W | 9 | 8 | 24-17 | 2 | 2.0 | Belisle | Capps | Coffey | 2:57 | 18,502 | + | |
| 42 | 42 | Friday, May 19 | boxscore | CIN | @ | DET | W | 9 | 4 | 25-17 | 2 | 2.0 | Claussen | Bonderman | 2:44 | 26,933 | ++ | ||
| 43 | 43 | Saturday, May 20 | boxscore | CIN | @ | DET | L | 6 | 7 | 10 | 25-18 | 2 | 3.0 | Rodney | Weathers | 3:04 | 43,128 | - | |
| 44 | 44 | Sunday, May 21 | boxscore | CIN | @ | DET | L | 0 | 1 | 25-19 | 2 | 4.0 | Rodney | Harang | Jones | 2:18 | 31,515 | -- | |
| 45 | 45 | Monday, May 22 | boxscore | CIN | MIL | W | 15 | 5 | 26-19 | 2 | 3.0 | Arroyo | Bush | 3:04 | 16,567 | + | |||
| 46 | 46 | Tuesday, May 23 | boxscore | CIN | MIL | W | 7 | 3 | 27-19 | 2 | 3.0 | Ramirez | Eveland | 2:42 | 16,528 | ++ | |||
| 47 | 47 | Wednesday, May 24 | boxscore | CIN | MIL | L | 2 | 6 | 27-20 | 2 | 4.0 | Davis | Claussen | 2:41 | 29,065 | - | |||
| 48 | 48 | Friday, May 26 | boxscore | CIN | ARI | L | 0 | 3 | 27-21 | 2 | 4.0 | Webb | Milton | 2:12 | 33,751 | -- | |||
| 49 | 49 | Saturday, May 27 | boxscore | CIN | ARI | L | 0 | 7 | 27-22 | 2 | 5.0 | Cruz | Harang | 2:46 | 36,884 | --- | |||
| 50 | 50 | Sunday, May 28 | boxscore | CIN | ARI | W | 5 | 4 | 28-22 | 2 | 4.0 | Weathers | Valverde | 2:47 | 27,694 | + | |||
| Rk | Gm# | Date | Tm | Opp | R | RA | Inn | W-L | Rank | GB | Win | Loss | Save | Time | Attendance | Streak | |||
| 51 | 51 | Monday, May 29 | boxscore | CIN | @ | CHC | L | 3 | 7 | 28-23 | 2 | 5.0 | Wood | Ramirez | Dempster | 2:37 | 40,072 | - | |
| 52 | 52 | Tuesday, May 30 | boxscore | CIN | @ | CHC | L | 3 | 8 | 28-24 | 2 | 5.0 | Maddux | Claussen | 2:32 | 39,000 | -- | ||
| 53 | 53 | Wednesday, May 31 | boxscore | CIN | @ | CHC | W | 3 | 2 | 29-24 | 2 | 5.0 | Milton | Zambrano | Coffey | 2:31 | 39,810 | + | |
| 54 | 54 | Friday, Jun 2 | boxscore | CIN | @ | HOU | W | 14 | 3 | 30-24 | 2 | 4.0 | Harang | Rodriguez | 3:01 | 37,086 | ++ | ||
| 55 | 55 | Saturday, Jun 3 | boxscore | CIN | @ | HOU | W | 7 | 5 | 31-24 | 2 | 3.0 | Arroyo | Pettitte | 2:44 | 39,653 | +++ | ||
| 56 | 56 | Sunday, Jun 4 | boxscore | CIN | @ | HOU | W | 6 | 4 | 11 | 32-24 | 2 | 3.0 | Coffey | Wheeler | Yan | 3:39 | 37,532 | ++++ |
| 57 | 57 | Monday, Jun 5 | boxscore | CIN | @ | STL | W | 8 | 7 | 33-24 | 2 | 2.0 | Yan | Isringhausen | Coffey | 3:10 | 43,707 | +++++ | |
| 58 | 58 | Tuesday, Jun 6 | boxscore | CIN | @ | STL | W | 7 | 0 | 34-24 | 2 | 1.0 | Milton | Carpenter | 2:42 | 43,857 | ++++++ | ||
| 59 | 59 | Wednesday, Jun 7 | boxscore | CIN | @ | STL | W | 7 | 4 | 35-24 | 1 | Tied | Harang | Ponson | Coffey | 2:49 | 44,306 | +++++++ | |
| 60 | 60 | Thursday, Jun 8 | boxscore | CIN | CHC | W | 7 | 1 | 36-24 | 1 | up 0.5 | Arroyo | Rusch | 2:34 | 26,059 | ++++++++ | |||
| 61 | 61 | Friday, Jun 9 | boxscore | CIN | CHC | L | 5 | 6 | 36-25 | 2 | 0.5 | Maddux | Ramirez | Dempster | 3:11 | 41,064 | - | ||
| 62 | 62 | Saturday, Jun 10 | boxscore | CIN | CHC | L | 2 | 4 | 36-26 | 2 | 0.5 | Zambrano | Claussen | Dempster | 2:50 | 34,141 | -- | ||
| 63 | 63 | Sunday, Jun 11 | boxscore | CIN | CHC | L | 3 | 9 | 36-27 | 2 | 1.5 | Marmol | Milton | 2:51 | 27,250 | --- | |||
| 64 | 64 | Monday, Jun 12 | boxscore | CIN | MIL | L | 5 | 6 | 36-28 | 2 | 2.0 | Jackson | Mercker | Turnbow | 3:03 | 19,279 | ---- | ||
| 65 | 65 | Tuesday, Jun 13 | boxscore | CIN | MIL | L | 4 | 6 | 36-29 | 2 | 3.0 | Davis | Arroyo | Turnbow | 3:13 | 21,829 | ----- | ||
| 66 | 66 | Wednesday, Jun 14 | boxscore | CIN | MIL | W | 3 | 0 | 11 | 37-29 | 2 | 2.0 | Hammond | Kolb | 3:13 | 27,716 | + | ||
| 67 | 67 | Friday, Jun 16 | boxscore | CIN | CHW | L | 4 | 12 | 37-30 | 2 | 3.5 | Garcia | Claussen | 2:37 | 32,673 | - | |||
| 68 | 68 | Saturday, Jun 17 | boxscore | CIN | CHW | L | 6 | 8 | 37-31 | 2 | 4.5 | Thornton | Coffey | Jenks | 3:09 | 39,451 | -- | ||
| 69 | 69 | Sunday, Jun 18 | boxscore | CIN | CHW | L | 1 | 8 | 37-32 | 2 | 5.5 | Garland | Harang | 2:35 | 31,569 | --- | |||
| 70 | 70 | Monday, Jun 19 | boxscore | CIN | @ | NYM | W | 4 | 2 | 38-32 | 2 | 5.0 | Arroyo | Hernandez | 2:38 | 41,874 | + | ||
| 71 | 71 | Tuesday, Jun 20 | boxscore | CIN | @ | NYM | L | 2 | 9 | 38-33 | 2 | 5.0 | Trachsel | Ramirez | 2:34 | 38,991 | - | ||
| 72 | 72 | Wednesday, Jun 21 | boxscore | CIN | @ | NYM | W | 6 | 5 | 39-33 | 2 | 4.0 | Standridge | Wagner | Coffey | 2:59 | 49,758 | + | |
| 73 | 73 | Thursday, Jun 22 | boxscore | CIN | @ | NYM | L | 2 | 6 | 39-34 | 2 | 4.0 | Martinez | Milton | Bradford | 2:44 | 46,767 | - | |
| 74 | 74 | Friday, Jun 23 | boxscore | CIN | @ | CLE | W | 3 | 0 | 40-34 | 2 | 3.0 | Harang | Westbrook | 2:54 | 32,927 | + | ||
| 75 | 75 | Saturday, Jun 24 | boxscore | CIN | @ | CLE | L | 0 | 4 | 40-35 | 2 | 3.0 | Byrd | Arroyo | 2:31 | 33,072 | - | ||
| 76 | 76 | Sunday, Jun 25 | boxscore | CIN | @ | CLE | W | 4 | 2 | 41-35 | 2 | 2.0 | Ramirez | Sowers | Coffey | 2:49 | 33,139 | + | |
| 77 | 77 | Tuesday, Jun 27 | boxscore | CIN | KCR | L | 8 | 9 | 41-36 | 2 | 1.5 | Affeldt | Coffey | Burgos | 3:07 | 21,420 | - | ||
| 78 | 78 | Wednesday, Jun 28 | boxscore | CIN | KCR | W | 7 | 2 | 42-36 | 2 | 1.5 | Harang | Elarton | 2:33 | 34,648 | + | |||
| 79 | 79 | Thursday, Jun 29 | boxscore | CIN | KCR | W | 6 | 5 | 43-36 | 2 | 1.0 | Weathers | Dessens | Coffey | 2:52 | 22,093 | ++ | ||
| 80 | 80 | Friday, Jun 30 | boxscore | CIN | CLE | W | 9 | 8 | 44-36 | 1 | Tied | Mercker | Wickman | 3:10 | 34,930 | +++ | |||
| 81 | 81 | Saturday, Jul 1 | boxscore | CIN | CLE | L | 7 | 12 | 44-37 | 1 | Tied | Lee | Mays | 3:07 | 40,692 | - | |||
| 82 | 82 | Sunday, Jul 2 | boxscore | CIN | CLE | L | 3 | 6 | 44-38 | 2 | 1.0 | Mota | Weathers | Wickman | 3:06 | 36,849 | -- | ||
| 83 | 83 | Monday, Jul 3 | boxscore | CIN | @ | MIL | L | 7 | 8 | 44-39 | 2 | 1.0 | Wise | Coffey | 3:00 | 31,353 | --- | ||
| 84 | 84 | Tuesday, Jul 4 | boxscore | CIN | @ | MIL | L | 2 | 5 | 44-40 | 2 | 2.0 | Davis | Arroyo | Shouse | 2:18 | 39,280 | ---- | |
| 85 | 85 | Wednesday, Jul 5 | boxscore | CIN | @ | MIL | L | 5 | 6 | 13 | 44-41 | 2 | 2.0 | Gonzalez | Standridge | 4:19 | 19,651 | ----- | |
| 86 | 86 | Thursday, Jul 6 | boxscore | CIN | @ | ATL | L | 7 | 8 | 10 | 44-42 | 2 | 2.0 | Ray | Coffey | 3:18 | 28,446 | ------ | |
| 87 | 87 | Friday, Jul 7 | boxscore | CIN | @ | ATL | W | 10 | 5 | 45-42 | 2 | 2.0 | Milton | Ramirez | 2:44 | 32,315 | + | ||
| 88 | 88 | Saturday, Jul 8 | boxscore | CIN | @ | ATL | L | 1 | 4 | 45-43 | 2 | 3.0 | Smoltz | Harang | Ray | 2:27 | 44,718 | - | |
| 89 | 89 | Sunday, Jul 9 | boxscore | CIN | @ | ATL | L | 3 | 8 | 45-44 | 2 | 4.0 | Villarreal | Arroyo | 2:55 | 31,908 | -- | ||
| 90 | 90 | Thursday, Jul 13 | boxscore | CIN | COL | W | 9 | 7 | 46-44 | 2 | 4.0 | Milton | Francis | Guardado | 3:12 | 20,660 | + | ||
| 91 | 91 | Friday, Jul 14 | boxscore | CIN | COL | W | 3 | 1 | 47-44 | 2 | 4.0 | Harang | Jennings | Guardado | 2:30 | 22,497 | ++ | ||
| 92 | 92 | Saturday, Jul 15 | boxscore | CIN | COL | W | 3 | 2 | 48-44 | 2 | 4.0 | Bray | Fuentes | 2:49 | 35,396 | +++ | |||
| 93 | 93 | Sunday, Jul 16 | boxscore | CIN | COL | W | 6 | 4 | 49-44 | 2 | 4.0 | Coffey | Mesa | Guardado | 2:45 | 27,043 | ++++ | ||
| 94 | 94 | Tuesday, Jul 18 | boxscore | CIN | NYM | L | 3 | 8 | 49-45 | 2 | 3.5 | Pelfrey | Milton | 3:00 | 27,138 | - | |||
| 95 | 95 | Wednesday, Jul 19 | boxscore | CIN | NYM | W | 7 | 4 | 50-45 | 2 | 3.5 | Coffey | Sanchez | Guardado | 2:53 | 26,300 | + | ||
| 96 | 96 | Thursday, Jul 20 | boxscore | CIN | NYM | L | 2 | 4 | 10 | 50-46 | 2 | 4.0 | Feliciano | Majewski | Wagner | 3:14 | 28,729 | - | |
| 97 | 97 | Friday, Jul 21 | boxscore | CIN | MIL | W | 6 | 5 | 51-46 | 2 | 4.0 | Majewski | Turnbow | 3:10 | 19,677 | + | |||
| 98 | 98 | Saturday, Jul 22 | boxscore | CIN | MIL | W | 8 | 7 | 52-46 | 2 | 4.0 | Coffey | Gonzalez | Guardado | 2:55 | 41,915 | ++ | ||
| 99 | 99 | Sunday, Jul 23 | boxscore | CIN | MIL | L | 1 | 4 | 52-47 | 2 | 5.0 | Ohka | Milton | Kolb | 2:37 | 22,726 | - | ||
| 100 | 100 | Tuesday, Jul 25 | boxscore | CIN | @ | HOU | W | 2 | 0 | 53-47 | 2 | 4.5 | Harang | Clemens | Bray | 2:49 | 38,865 | + | |
| Rk | Gm# | Date | Tm | Opp | R | RA | Inn | W-L | Rank | GB | Win | Loss | Save | Time | Attendance | Streak | |||
| 101 | 101 | Wednesday, Jul 26 | boxscore | CIN | @ | HOU | L | 5 | 8 | 53-48 | 2 | 5.5 | Pettitte | Arroyo | Wheeler | 2:43 | 34,381 | - | |
| 102 | 102 | Thursday, Jul 27 | boxscore | CIN | @ | HOU | W | 8 | 4 | 54-48 | 2 | 4.5 | Ramirez | Buchholz | 3:09 | 38,254 | + | ||
| 103 | 103 | Friday, Jul 28 | boxscore | CIN | @ | MIL | W | 4 | 3 | 55-48 | 2 | 3.5 | Milton | Wise | Guardado | 2:55 | 32,743 | ++ | |
| 104 | 104 | Saturday, Jul 29 | boxscore | CIN | @ | MIL | L | 3 | 6 | 55-49 | 2 | 3.5 | Gonzalez | Germano | Turnbow | 3:00 | 43,000 | - | |
| 105 | 105 | Sunday, Jul 30 | boxscore | CIN | @ | MIL | L | 3 | 4 | 55-50 | 2 | 3.5 | Sheets | Harang | Cordero | 2:48 | 42,976 | -- | |
| 106 | 106 | Tuesday, Aug 1 | boxscore | CIN | LAD | L | 4 | 10 | 55-51 | 2 | 3.5 | Sele | Bray | 2:53 | 25,127 | --- | |||
| 107 | 107 | Wednesday, Aug 2 | boxscore | CIN | LAD | L | 3 | 5 | 55-52 | 2 | 3.5 | Penny | Ramirez | Saito | 3:05 | 22,110 | ---- | ||
| 108 | 108 | Thursday, Aug 3 | boxscore | CIN | LAD | L | 0 | 3 | 55-53 | 2 | 3.5 | Maddux | Milton | Saito | 2:33 | 26,053 | ----- | ||
| 109 | 109 | Friday, Aug 4 | boxscore | CIN | ATL | W | 5 | 4 | 56-53 | 2 | 2.5 | Harang | James | Guardado | 2:48 | 33,661 | + | ||
| 110 | 110 | Saturday, Aug 5 | boxscore | CIN | ATL | W | 8 | 6 | 57-53 | 2 | 2.5 | Weathers | Yates | Bray | 2:58 | 33,170 | ++ | ||
| 111 | 111 | Sunday, Aug 6 | boxscore | CIN | ATL | L | 4 | 6 | 57-54 | 2 | 3.5 | McBride | Majewski | Wickman | 3:02 | 29,660 | - | ||
| 112 | 112 | Monday, Aug 7 | boxscore | CIN | STL | L | 1 | 13 | 57-55 | 2 | 4.5 | Weaver | Ramirez | 2:56 | 34,262 | -- | |||
| 113 | 113 | Tuesday, Aug 8 | boxscore | CIN | STL | W | 10 | 3 | 58-55 | 2 | 3.5 | Milton | Marquis | 3:10 | 40,094 | + | |||
| 114 | 114 | Wednesday, Aug 9 | boxscore | CIN | STL | W | 8 | 7 | 59-55 | 2 | 2.5 | Franklin | Isringhausen | 2:56 | 41,649 | ++ | |||
| 115 | 115 | Thursday, Aug 10 | boxscore | CIN | STL | L | 1 | 6 | 59-56 | 2 | 3.5 | Reyes | Arroyo | 2:58 | 39,591 | - | |||
| 116 | 116 | Friday, Aug 11 | boxscore | CIN | @ | PHI | L | 5 | 6 | 14 | 59-57 | 2 | 3.5 | Fultz | Ramirez | 4:29 | 41,461 | -- | |
| 117 | 117 | Saturday, Aug 12 | boxscore | CIN | @ | PHI | W | 9 | 7 | 60-57 | 2 | 2.5 | Michalak | Gordon | Guardado | 3:08 | 39,553 | + | |
| 118 | 118 | Sunday, Aug 13 | boxscore | CIN | @ | PHI | W | 7 | 5 | 11 | 61-57 | 2 | 1.5 | Bray | Madson | 3:54 | 37,677 | ++ | |
| 119 | 119 | Tuesday, Aug 15 | boxscore | CIN | @ | STL | L | 0 | 5 | 61-58 | 2 | 2.5 | Carpenter | Harang | 2:30 | 42,761 | - | ||
| 120 | 120 | Wednesday, Aug 16 | boxscore | CIN | @ | STL | W | 7 | 2 | 62-58 | 2 | 1.5 | Arroyo | Reyes | 2:49 | 42,752 | + | ||
| 121 | 121 | Thursday, Aug 17 | boxscore | CIN | @ | STL | L | 1 | 2 | 62-59 | 2 | 2.5 | Isringhausen | Franklin | 2:17 | 40,346 | - | ||
| 122 | 122 | Friday, Aug 18 | boxscore | CIN | PIT | L | 3 | 7 | 62-60 | 2 | 3.5 | Snell | Michalak | 2:51 | 31,718 | -- | |||
| 123 | 123 | Saturday, Aug 19 | boxscore | CIN | PIT | W | 14 | 7 | 63-60 | 2 | 2.5 | Franklin | Torres | 2:55 | 34,245 | + | |||
| 124 | 124 | Sunday, Aug 20 | boxscore | CIN | PIT | W | 5 | 1 | 64-60 | 2 | 2.5 | Harang | Santos | 2:43 | 29,935 | ++ | |||
| 125 | 125 | Monday, Aug 21 | boxscore | CIN | HOU | W | 4 | 3 | 65-60 | 2 | 2.0 | Franklin | Qualls | Schoeneweis | 2:45 | 24,110 | +++ | ||
| 126 | 126 | Tuesday, Aug 22 | boxscore | CIN | HOU | W | 14 | 0 | 66-60 | 2 | 1.0 | Lohse | Hirsh | 2:30 | 22,556 | ++++ | |||
| 127 | 127 | Wednesday, Aug 23 | boxscore | CIN | HOU | L | 3 | 7 | 66-61 | 2 | 1.0 | Oswalt | Coffey | 3:01 | 24,873 | - | |||
| 128 | 128 | Thursday, Aug 24 | boxscore | CIN | @ | SFG | W | 6 | 3 | 67-61 | 1 | Tied | Franklin | Chulk | Weathers | 2:59 | 38,754 | + | |
| 129 | 129 | Friday, Aug 25 | boxscore | CIN | @ | SFG | L | 1 | 4 | 67-62 | 2 | 1.0 | Morris | Harang | 2:16 | 37,801 | - | ||
| 130 | 130 | Saturday, Aug 26 | boxscore | CIN | @ | SFG | L | 1 | 4 | 67-63 | 2 | 2.0 | Lowry | Arroyo | Stanton | 2:37 | 41,362 | -- | |
| 131 | 131 | Sunday, Aug 27 | boxscore | CIN | @ | SFG | L | 0 | 8 | 67-64 | 2 | 3.0 | Cain | Lohse | 2:40 | 39,097 | --- | ||
| 132 | 132 | Monday, Aug 28 | boxscore | CIN | @ | LAD | L | 5 | 6 | 67-65 | 2 | 3.5 | Penny | Michalak | Broxton | 3:27 | 44,176 | ---- | |
| 133 | 133 | Tuesday, Aug 29 | boxscore | CIN | @ | LAD | L | 5 | 6 | 16 | 67-66 | 2 | 3.5 | Lowe | Franklin | 4:54 | 44,697 | ----- | |
| 134 | 134 | Wednesday, Aug 30 | boxscore | CIN | @ | LAD | L | 3 | 7 | 67-67 | 2 | 4.5 | Maddux | Harang | 2:32 | 47,356 | ------ | ||
| 135 | 135 | Friday, Sep 1 | boxscore | CIN | @ | SDP | W | 6 | 2 | 68-67 | 2 | 5.0 | Arroyo | Hensley | 2:50 | 32,901 | + | ||
| 136 | 136 | Saturday, Sep 2 | boxscore | CIN | @ | SDP | L | 1 | 7 | 68-68 | 2 | 5.0 | Peavy | Lohse | 2:22 | 36,287 | - | ||
| 137 | 137 | Sunday, Sep 3 | boxscore | CIN | @ | SDP | L | 1 | 2 | 68-69 | 2 | 6.0 | Meredith | Cormier | Hoffman | 2:28 | 31,153 | -- | |
| 138 | 138 | Monday, Sep 4 | boxscore | CIN | SFG | L | 4 | 5 | 10 | 68-70 | 2 | 6.0 | Correia | Weathers | Stanton | 3:09 | 25,515 | --- | |
| 139 | 139 | Tuesday, Sep 5 | boxscore | CIN | SFG | W | 3 | 0 | 69-70 | 2 | 6.0 | Arroyo | Morris | 2:02 | 20,751 | + | |||
| 140 | 140 | Wednesday, Sep 6 | boxscore | CIN | SFG | L | 2 | 3 | 69-71 | 2 | 6.0 | Sanchez | Kim | Stanton | 2:46 | 20,571 | - | ||
| 141 | 141 | Friday, Sep 8 | boxscore | CIN | PIT | W | 9 | 1 | 70-71 | 2 | 5.5 | Lohse | Snell | 2:39 | 17,631 | + | |||
| 142 | 142 | Saturday, Sep 9 | boxscore | CIN | PIT | L | 4 | 7 | 70-72 | 3 | 5.5 | Capps | Coffey | Torres | 2:47 | 25,038 | - | ||
| 143 | 143 | Sunday, Sep 10 | boxscore | CIN | PIT | W | 4 | 2 | 71-72 | 2 | 4.5 | Arroyo | Youman | Schoeneweis | 2:17 | 20,731 | + | ||
| 144 | 144 | Tuesday, Sep 12 | boxscore | CIN | SDP | W | 5 | 4 | 11 | 72-72 | 2 | 5.0 | Schoeneweis | Brocail | 3:34 | 15,820 | ++ | ||
| 145 | 145 | Wednesday, Sep 13 | boxscore | CIN | SDP | L | 0 | 10 | 72-73 | 2 | 5.0 | Peavy | Lohse | 2:51 | 21,602 | - | |||
| 146 | 146 | Thursday, Sep 14 | boxscore | CIN | SDP | L | 2 | 4 | 72-74 | 2 | 5.5 | Hensley | Harang | Hoffman | 2:32 | 16,957 | -- | ||
| 147 | 147 | Friday, Sep 15 | boxscore | CIN | @ | CHC | W | 4 | 0 | 73-74 | 2 | 5.5 | Arroyo | Marmol | 2:22 | 37,188 | + | ||
| 148 | 148 | Saturday, Sep 16 | boxscore | CIN | @ | CHC | L | 0 | 4 | 73-75 | 2 | 6.5 | Hill | Michalak | 2:18 | 40,526 | - | ||
| 149 | 149 | Sunday, Sep 17 | boxscore | CIN | @ | CHC | L | 3 | 11 | 73-76 | 2 | 7.0 | Zambrano | Milton | 2:39 | 39,164 | -- | ||
| 150 | 150 | Monday, Sep 18 | boxscore | CIN | @ | HOU | L | 3 | 5 | 73-77 | 2 | 7.0 | Oswalt | Lohse | Wheeler | 2:23 | 28,711 | --- | |
| Rk | Gm# | Date | Tm | Opp | R | RA | Inn | W-L | Rank | GB | Win | Loss | Save | Time | Attendance | Streak | |||
| 151 | 151 | Tuesday, Sep 19 | boxscore | CIN | @ | HOU | W | 5 | 4 | 74-77 | 2 | 7.0 | Harang | Albers | Weathers | 2:25 | 36,930 | + | |
| 152 | 152 | Wednesday, Sep 20 | boxscore | CIN | @ | HOU | L | 2 | 7 | 74-78 | 2 | 7.0 | Clemens | Arroyo | 2:59 | 31,928 | - | ||
| 153 | 153 | Friday, Sep 22 | boxscore | CIN | CHC | W | 4 | 2 | 5 | 75-78 | 2 | 5.5 | Michalak | Hill | Coffey | 1:34 | 21,332 | + | |
| 154 | 154 | Saturday, Sep 23 | boxscore | CIN | CHC | L | 4 | 11 | 75-79 | 3 | 5.5 | Zambrano | Lohse | 2:54 | 28,264 | - | |||
| 155 | 155 | Sunday, Sep 24 | boxscore | CIN | CHC | W | 3 | 2 | 76-79 | 3 | 4.5 | Harang | Dempster | 2:38 | 22,226 | + | |||
| 156 | 156 | Monday, Sep 25 | boxscore | CIN | CHC | W | 5 | 4 | 77-79 | 3 | 3.5 | Schoeneweis | Eyre | Weathers | 2:37 | 16,278 | ++ | ||
| 157 | 157 | Tuesday, Sep 26 | boxscore | CIN | @ | FLA | W | 5 | 3 | 78-79 | 3 | 2.5 | Franklin | Willis | Schoeneweis | 3:01 | 11,422 | +++ | |
| 158 | 158 | Wednesday, Sep 27 | boxscore | CIN | @ | FLA | L | 2 | 7 | 78-80 | 3 | 3.5 | Sanchez | Michalak | 3:10 | 13,295 | - | ||
| 159 | 159 | Thursday, Sep 28 | boxscore | CIN | @ | FLA | W | 5 | 1 | 79-80 | 3 | 2.5 | Lohse | Nolasco | 2:50 | 14,106 | + | ||
| 160 | 160 | Friday, Sep 29 | boxscore | CIN | @ | PIT | W | 5 | 2 | 80-80 | 3 | 2.5 | Harang | Duke | 2:31 | 27,033 | ++ | ||
| 161 | 161 | Saturday, Sep 30 | boxscore | CIN | @ | PIT | L | 0 | 3 | 80-81 | 3 | 3.5 | McLeary | Arroyo | Torres | 2:04 | 35,514 | - | |
| 162 | 162 | Sunday, Oct 1 | boxscore | CIN | @ | PIT | L | 0 | 1 | 80-82 | 3 | 3.5 | Capps | Coffey | Torres | 2:10 | 25,004 | -- | |
| Rk | Gm# | Date | Tm | Opp | R | RA | Inn | W-L | Rank | GB | Win | Loss | Save | Time | Attendance | Streak |
Rank and Games Behind are at the end of all games played on that date.