| 2021.02.28 | Thespa Gunma | 2-1 | Blaublitz Akita | Away | Ave. Age | 27.0y.o. | Ave. Change Time | 76.3min. |
| 2021.03.07 | Tochigi SC | 0-1 | Blaublitz Akita | Away | Ave. Age | 27.0y.o. | Ave. Change Time | 75.0min. |
| 2021.03.14 | JEF United Chiba | 0-2 | Blaublitz Akita | Away | Ave. Age | 27.3y.o. | Ave. Change Time | 69.4min. |
| 2021.03.21 | Giravanz Kitakyushu | 1-1 | Blaublitz Akita | Away | Ave. Age | 27.2y.o. | Ave. Change Time | 74.6min. |
| 2021.03.28 | Blaublitz Akita | 1-0 | Kyoto Sanga F.C. | Home | Ave. Age | 27.6y.o. | Ave. Change Time | 75.2min. |
| 2021.04.04 | Matsumoto Yamaga F.C. | 3-1 | Blaublitz Akita | Away | Ave. Age | 27.1y.o. | Ave. Change Time | 73.6min. |
| 2021.04.10 | Blaublitz Akita | 0-0 | RB Omiya Ardija | Home | Ave. Age | 27.9y.o. | Ave. Change Time | 64.8min. |
| 2021.04.17 | Blaublitz Akita | 0-0 | Montedio Yamagata | Home | Ave. Age | 27.6y.o. | Ave. Change Time | 67.0min. |
| 2021.04.21 | Zweigen Kanazawa | 2-1 | Blaublitz Akita | Away | Ave. Age | 27.4y.o. | Ave. Change Time | 59.0min. |
| 2021.04.25 | Blaublitz Akita | 1-0 | Mito Hollyhock | Home | Ave. Age | 27.9y.o. | Ave. Change Time | 78.0min. |
| 2021.05.01 | Blaublitz Akita | 0-1 | Fagiano Okayama | Home | Ave. Age | 27.9y.o. | Ave. Change Time | 69.3min. |
| 2021.05.05 | V-Varen Nagasaki | 1-2 | Blaublitz Akita | Away | Ave. Age | 27.1y.o. | Ave. Change Time | 63.0min. |
| 2021.05.09 | Blaublitz Akita | 1-1 | Jubilo Iwata | Home | Ave. Age | 27.5y.o. | Ave. Change Time | 73.4min. |
| 2021.05.15 | Ventforet Kofu | 1-0 | Blaublitz Akita | Away | Ave. Age | 27.3y.o. | Ave. Change Time | 70.5min. |
| 2021.05.19 | Blaublitz Akita | 1-1 | Renofa Yamaguchi FC | Home | Ave. Age | 27.2y.o. | Ave. Change Time | 75.6min. |
| 2021.05.23 | Blaublitz Akita | 1-1 | Hokkaido Tokachi Skyearth | Ave. Age | 27.1y.o. | Ave. Change Time | 79.3min. | |
| 2021.05.29 | Tokyo Verdy | 3-1 | Blaublitz Akita | Away | Ave. Age | 27.3y.o. | Ave. Change Time | 70.0min. |
| 2021.06.05 | Blaublitz Akita | 1-1 | FC Ryukyu | Home | Ave. Age | 27.7y.o. | Ave. Change Time | 66.0min. |
| 2021.06.13 | FC Machida Zelvia | 0-2 | Blaublitz Akita | Away | Ave. Age | 27.4y.o. | Ave. Change Time | 67.5min. |
| 2021.06.21 | Blaublitz Akita | 0-2 | Albirex Niigata | Home | Ave. Age | 27.4y.o. | Ave. Change Time | 55.2min. |
| 2021.06.26 | Blaublitz Akita | 1-1 | SC Sagamihara | Home | Ave. Age | 27.2y.o. | Ave. Change Time | 75.0min. |
| 2021.07.04 | Ehime FC | 1-3 | Blaublitz Akita | Away | Ave. Age | 27.0y.o. | Ave. Change Time | 60.4min. |
| 2021.07.11 | Blaublitz Akita | 1-1 | JEF United Chiba | Home | Ave. Age | 27.5y.o. | Ave. Change Time | 74.5min. |
| 2021.07.17 | Renofa Yamaguchi FC | 1-0 | Blaublitz Akita | Away | Ave. Age | 28.2y.o. | Ave. Change Time | 68.8min. |
| 2021.08.09 | Blaublitz Akita | 1-4 | Matsumoto Yamaga F.C. | Home | Ave. Age | 27.1y.o. | Ave. Change Time | 72.8min. |
| 2021.08.14 | RB Omiya Ardija | 1-1 | Blaublitz Akita | Away | Ave. Age | 27.3y.o. | Ave. Change Time | 64.6min. |
| 2021.08.22 | Blaublitz Akita | 1-1 | V-Varen Nagasaki | Home | Ave. Age | 27.2y.o. | Ave. Change Time | 64.6min. |
| 2021.08.28 | FC Ryukyu | 2-1 | Blaublitz Akita | Away | Ave. Age | 27.7y.o. | Ave. Change Time | 59.4min. |
| 2021.09.04 | Blaublitz Akita | 1-0 | Thespa Gunma | Home | Ave. Age | 26.9y.o. | Ave. Change Time | 64.2min. |
| 2021.09.11 | Mito Hollyhock | 0-3 | Blaublitz Akita | Away | Ave. Age | 26.9y.o. | Ave. Change Time | 65.0min. |
| 2021.09.19 | Blaublitz Akita | 1-1 | Giravanz Kitakyushu | Home | Ave. Age | 26.8y.o. | Ave. Change Time | 76.0min. |
| 2021.09.26 | Fagiano Okayama | 1-1 | Blaublitz Akita | Away | Ave. Age | 26.8y.o. | Ave. Change Time | 72.0min. |
| 2021.10.02 | Blaublitz Akita | 0-2 | Ehime FC | Home | Ave. Age | 26.8y.o. | Ave. Change Time | 73.0min. |
| 2021.10.10 | Montedio Yamagata | 2-1 | Blaublitz Akita | Away | Ave. Age | 26.9y.o. | Ave. Change Time | 65.6min. |
| 2021.10.16 | Blaublitz Akita | 0-2 | FC Machida Zelvia | Home | Ave. Age | 27.4y.o. | Ave. Change Time | 53.4min. |
| 2021.10.23 | Albirex Niigata | 1-2 | Blaublitz Akita | Away | Ave. Age | 27.3y.o. | Ave. Change Time | 63.0min. |
| 2021.10.30 | Blaublitz Akita | 1-1 | Zweigen Kanazawa | Home | Ave. Age | 27.5y.o. | Ave. Change Time | 65.8min. |
| 2021.11.03 | SC Sagamihara | 0-1 | Blaublitz Akita | Away | Ave. Age | 27.3y.o. | Ave. Change Time | 71.2min. |
| 2021.11.07 | Blaublitz Akita | 1-1 | Tochigi SC | Home | Ave. Age | 27.3y.o. | Ave. Change Time | 75.0min. |
| 2021.11.14 | Kyoto Sanga F.C. | 3-1 | Blaublitz Akita | Away | Ave. Age | 26.8y.o. | Ave. Change Time | 67.4min. |
| 2021.11.21 | Blaublitz Akita | 0-2 | Ventforet Kofu | Home | Ave. Age | 27.9y.o. | Ave. Change Time | 71.0min. |
| 2021.11.28 | Blaublitz Akita | 1-4 | Tokyo Verdy | Home | Ave. Age | 27.8y.o. | Ave. Change Time | 65.2min. |
| 2021.12.05 | Jubilo Iwata | 2-1 | Blaublitz Akita | Away | Ave. Age | 27.3y.o. | Ave. Change Time | 67.8min. |