| Iwate Big Bulls Games/Schedule |
| Oct. 6, 2012 | Round 1 (Regular Season ) | Niigata Albirex-Iwate Big Bulls | 82-88 |
| Oct. 7, 2012 | Round 1 (Regular Season ) | Niigata Albirex-Iwate Big Bulls | 85-94 |
| Oct. 13, 2012 | Round 2 (Regular Season ) | Sendai 89ers-Iwate Big Bulls | 63-67 |
| Oct. 14, 2012 | Round 3 (Regular Season ) | Sendai 89ers-Iwate Big Bulls | 68-70 |
| Oct. 20, 2012 | Round 4 (Regular Season ) | Iwate Big Bulls-Chiba Jets | 78-77 |
| Oct. 21, 2012 | Round 5 (Regular Season ) | Iwate Big Bulls-Chiba Jets | 99-88 |
| Oct. 27, 2012 | Round 6 (Regular Season ) | Iwate Big Bulls-Gunma | 102-67 |
| Oct. 28, 2012 | Round 7 (Regular Season ) | Iwate Big Bulls-Gunma | 105-89 |
| Nov. 3, 2012 | Round 8 (Regular Season ) | Toyama Grouses-Iwate Big Bulls | 89-87 |
| Nov. 4, 2012 | Round 9 (Regular Season ) | Toyama Grouses-Iwate Big Bulls | 87-95 |
| Nov. 10, 2012 | Round 10 (Regular Season ) | Iwate Big Bulls-Akita NH | 76-74 |
| Nov. 11, 2012 | Round 11 (Regular Season ) | Iwate Big Bulls-Akita NH | 67-86 |
| Nov. 23, 2012 | Round 14 (Regular Season ) | Yokohama BC-Iwate Big Bulls | 84-89 |
| Nov. 24, 2012 | Round 14 (Regular Season ) | Yokohama BC-Iwate Big Bulls | 98-61 |
| Dec. 1, 2012 | Round 16 (Regular Season ) | Iwate Big Bulls-Shinshu BW | 79-84 |
| Dec. 2, 2012 | Round 17 (Regular Season ) | Iwate Big Bulls-Shinshu BW | 79-80 |
| Dec. 8, 2012 | Round 18 (Regular Season ) | Saitama Bron.-Iwate Big Bulls | 94-111 |
| Dec. 9, 2012 | Round 19 (Regular Season ) | Saitama Bron.-Iwate Big Bulls | 72-88 |
| Dec. 22, 2012 | Round 22 (Regular Season ) | Tokyo Cinq R.-Iwate Big Bulls | 91-86 |
| Dec. 23, 2012 | Round 23 (Regular Season ) | Tokyo Cinq R.-Iwate Big Bulls | 69-78 |
| Dec. 29, 2012 | Round 24 (Regular Season ) | Iwate Big Bulls-Saitama Bron. | 101-88 |
| Dec. 30, 2012 | Round 24 (Regular Season ) | Iwate Big Bulls-Saitama Bron. | 97-53 |
| Jan. 5, 2013 | Round 25 (Regular Season ) | Gunma-Iwate Big Bulls | 70-80 |
| Jan. 6, 2013 | Round 26 (Regular Season ) | Gunma-Iwate Big Bulls | 62-90 |
| Jan. 12, 2013 | Round 27 (Regular Season ) | Iwate Big Bulls-Toyama Grouses | 91-79 |
| Jan. 13, 2013 | Round 28 (Regular Season ) | Iwate Big Bulls-Toyama Grouses | 68-85 |
| Jan. 26, 2013 | Round 29 (Regular Season ) | Akita NH-Iwate Big Bulls | 53-73 |
| Jan. 27, 2013 | Round 30 (Regular Season ) | Akita NH-Iwate Big Bulls | 81-71 |
| Feb. 2, 2013 | Round 31 (Regular Season ) | Iwate Big Bulls-Sendai 89ers | 69-75 |
| Feb. 3, 2013 | Round 32 (Regular Season ) | Iwate Big Bulls-Sendai 89ers | 89-67 |
| Feb. 10, 2013 | Round 34 (Regular Season ) | Chiba Jets-Iwate Big Bulls | 90-86 |
| Feb. 11, 2013 | Round 34 (Regular Season ) | Chiba Jets-Iwate Big Bulls | 77-88 |
| Feb. 16, 2013 | Round 35 (Regular Season ) | Iwate Big Bulls-Niigata Albirex | 75-70 |
| Feb. 17, 2013 | Round 36 (Regular Season ) | Iwate Big Bulls-Niigata Albirex | 72-86 |
| Feb. 23, 2013 | Round 37 (Regular Season ) | Iwate Big Bulls-Yokohama BC | 92-68 |
| Feb. 24, 2013 | Round 38 (Regular Season ) | Iwate Big Bulls-Yokohama BC | 62-75 |
| Mar. 2, 2013 | Round 39 (Regular Season ) | Takamatsu FA-Iwate Big Bulls | 89-92 |
| Mar. 3, 2013 | Round 40 (Regular Season ) | Takamatsu FA-Iwate Big Bulls | 81-65 |
| Mar. 9, 2013 | Round 41 (Regular Season ) | Iwate Big Bulls-Okinawa GK | 79-77 |
| Mar. 10, 2013 | Round 42 (Regular Season ) | Iwate Big Bulls-Okinawa GK | 67-99 |
| Mar. 23, 2013 | Round 45 (Regular Season ) | Iwate Big Bulls-Oita H.Devils | 63-90 |
| Mar. 24, 2013 | Round 46 (Regular Season ) | Iwate Big Bulls-Oita H.Devils | 80-83 |
| Mar. 30, 2013 | Round 47 (Regular Season ) | Iwate Big Bulls-Tokyo Cinq R. | 77-67 |
| Mar. 31, 2013 | Round 48 (Regular Season ) | Iwate Big Bulls-Tokyo Cinq R. | 89-83 |
| Apr. 6, 2013 | Round 49 (Regular Season ) | Shimane SM-Iwate Big Bulls | 92-79 |
| Apr. 7, 2013 | Round 50 (Regular Season ) | Shimane SM-Iwate Big Bulls | 73-86 |
| Apr. 13, 2013 | Round 51 (Regular Season ) | Shinshu BW-Iwate Big Bulls | 82-92 |
| Apr. 14, 2013 | Round 52 (Regular Season ) | Shinshu BW-Iwate Big Bulls | 83-95 |
| Apr. 20, 2013 | Round 53 (Regular Season ) | Iwate Big Bulls-Miyazaki SS | 86-59 |
| Apr. 21, 2013 | Round 54 (Regular Season ) | Iwate Big Bulls-Miyazaki SS | 84-60 |
| Apr. 27, 2013 | Round 55 (Regular Season ) | Fukuoka Rizing-Iwate Big Bulls | 61-82 |
| Apr. 28, 2013 | Round 56 (Regular Season ) | Fukuoka Rizing-Iwate Big Bulls | 85-81 |
| May. 4, 2013 | Round 1 (1/8 Finals ) | Iwate Big Bulls-Akita NH | 79-74 |
| May. 5, 2013 | Round 2 (1/8 Finals ) | Iwate Big Bulls-Akita NH | 71-72 |
