| Koshigaya A. Games/Schedule |
| Sep. 21, 2019 | Round 1 (Regular Season) | Kumamoto V. - Koshigaya A. | 74-82  |
| Sep. 22, 2019 | Round 2 (Regular Season) | Kumamoto V. - Koshigaya A. | 93-73  |
| Sep. 28, 2019 | Round 3 (Regular Season) | Koshigaya A. - Shinshu BW | 54-74 |
| Sep. 29, 2019 | Round 4 (Regular Season) | Koshigaya A. - Shinshu BW | 71-73 |
| Oct. 5, 2019 | Round 5 (Regular Season) | Koshigaya A. - Tokyo EX | 79-89 |
| Oct. 6, 2019 | Round 6 (Regular Season) | Koshigaya A. - Tokyo EX | 85-102 |
| Oct. 11, 2019 | Round 7 (Regular Season) | Fukuoka R. - Koshigaya A. | 80-88 |
| Oct. 12, 2019 | Round 7 (Regular Season) | Fukuoka R. - Koshigaya A. | 88-72 |
| Oct. 16, 2019 | Round 9 (Regular Season) | Koshigaya A. - Shinshu BW | 63-92 |
| Oct. 19, 2019 | Round 10 (Regular Season) | Nishinomiya S. - Koshigaya A. | 76-74 |
| Oct. 20, 2019 | Round 11 (Regular Season) | Nishinomiya S. - Koshigaya A. | 83-69 |
| Oct. 26, 2019 | Round 12 (Regular Season) | Koshigaya A. - Kagawa FA | 74-76 |
| Oct. 27, 2019 | Round 13 (Regular Season) | Koshigaya A. - Kagawa FA | 70-87 |
| Nov. 2, 2019 | Round 14 (Regular Season) | Koshigaya A. - Ibaraki R. | 98-82 |
| Nov. 3, 2019 | Round 15 (Regular Season) | Koshigaya A. - Ibaraki R. | 95-100 |
| Nov. 9, 2019 | Round 16 (Regular Season) | Sendai 89ers - Koshigaya A. | 85-76 |
| Nov. 10, 2019 | Round 17 (Regular Season) | Sendai 89ers - Koshigaya A. | 77-73 |
| Nov. 15, 2019 | Round 18 (Regular Season) | Koshigaya A. - Ehime OV | 87-86 |
| Nov. 16, 2019 | Round 18 (Regular Season) | Koshigaya A. - Ehime OV | 84-97 |
| Nov. 23, 2019 | Round 20 (Regular Season) | Koshigaya A. - Fukuoka R. | 88-94 |
| Nov. 24, 2019 | Round 21 (Regular Season) | Koshigaya A. - Fukuoka R. | 94-97 |
| Dec. 7, 2019 | Round 23 (Regular Season) | Koshigaya A. - Fukushima | 73-80 |
| Dec. 8, 2019 | Round 23 (Regular Season) | Koshigaya A. - Fukushima | 84-77 |
| Dec. 11, 2019 | Round 24 (Regular Season) | Shinshu BW - Koshigaya A. | 95-51 |
| Dec. 14, 2019 | Round 25 (Regular Season) | Koshigaya A. - Nishinomiya S. | 77-76 |
| Dec. 15, 2019 | Round 26 (Regular Season) | Koshigaya A. - Nishinomiya S. | 83-79 |
| Dec. 21, 2019 | Round 27 (Regular Season) | Koshigaya A. - Gunma | 50-82 |
| Dec. 20, 2019 | Round 27 (Regular Season) | Koshigaya A. - Gunma | 63-70 |
| Dec. 28, 2019 | Round 29 (Regular Season) | Bambitious N. - Koshigaya A. | 81-93 |
| Dec. 29, 2019 | Round 30 (Regular Season) | Bambitious N. - Koshigaya A. | 101-86 |
| Jan. 4, 2020 | Round 31 (Regular Season) | FE Nagoya - Koshigaya A. | 76-56 |
| Jan. 5, 2020 | Round 32 (Regular Season) | FE Nagoya - Koshigaya A. | 85-88 |
| Jan. 17, 2020 | Round 33 (Regular Season) | Tokyo Z - Koshigaya A. | 61-70 |
| Jan. 16, 2020 | Round 33 (Regular Season) | Tokyo Z - Koshigaya A. | 74-80 |
| Jan. 25, 2020 | Round 35 (Regular Season) | Koshigaya A. - Aomori W. | 78-72 |
| Jan. 26, 2020 | Round 36 (Regular Season) | Koshigaya A. - Aomori W. | 69-90 |
| Jan. 29, 2020 | Round 37 (Regular Season) | Koshigaya A. - Tokyo EX | 65-103 |
| Feb. 1, 2020 | Round 38 (Regular Season) | Yamagata - Koshigaya A. | 78-88 |
| Feb. 2, 2020 | Round 39 (Regular Season) | Yamagata - Koshigaya A. | 80-81 |
| Feb. 8, 2020 | Round 40 (Regular Season) | Koshigaya A. - Sendai 89ers | 68-85 |
| Feb. 9, 2020 | Round 41 (Regular Season) | Koshigaya A. - Sendai 89ers | 55-58 |
| Feb. 15, 2020 | Round 42 (Regular Season) | Ehime OV - Koshigaya A. | 95-83 |
| Feb. 16, 2020 | Round 43 (Regular Season) | Ehime OV - Koshigaya A. | 80-76 |
| Feb. 22, 2020 | Round 44 (Regular Season) | Tokyo Z - Koshigaya A. | 84-79 |
| Feb. 23, 2020 | Round 45 (Regular Season) | Tokyo Z - Koshigaya A. | 70-60 |
| Mar. 14, 2020 | Round 46 (Regular Season) | Koshigaya A. - Tokyo Z | 84-80 |
| Mar. 15, 2020 | Round 47 (Regular Season) | Koshigaya A. - Tokyo Z | 63-88 |
