| AtCoder Beginner Contest 191 | 7748 | 79 |  4 | - | |
| Caddi Programming Contest 2021(AtCoder Beginner Contest 193) | 4639 | 459 | 36 | +32 | |
| AtCoder Beginner Contest 198 | 6142 | 202 | 56 | +20 | |
| Japanese Student Championship 2021 | 3511 | 114 | 63 | +7 | |
| AtCoder Beginner Contest 199（Sponsored by Panasonic） | 5151 | 454 | 99 | +36 | |
| ZONe Energy Programming Contest | 3839 | 579 |  146 | +47 | |
| KYOCERA Programming Contest 2021（AtCoder Beginner Contest 200） | 5144 | 441 | 176 | +30 | |
| Mynavi Programming Contest 2021（AtCoder Beginner Contest 201） | 3865 | 694 |  233 | +57 | |
| AISing Programming Contest 2021（AtCoder Beginner Contest 202） | 1633 | 1224 |  395 | +162 | |
| AtCoder Beginner Contest 204 | 5704 | 320 | 382 | -13 | |
| AtCoder Beginner Contest 205 | 4640 | 511 | 398 | +16 | |
| AtCoder Beginner Contest 206（Sponsored by Panasonic） | 4479 | 577 |  420 | +22 | |
| AtCoder Beginner Contest 208 | 4915 | 436 | 421 | +1 | |
| AtCoder Beginner Contest 214 | 5484 | 291 | 404 | -17 | |
| AtCoder Beginner Contest 356 | 6734 | 558 | 422 | +18 | |