| 1 | Yuuka Takahashi (A2) Misaki Shinno (B2) Mio Takahashi (B2) | JPN | 3:10.82 | TRJ, PB | - |
| 2 | Azusa Maeda (B1) Anna Kubo (B1) Momoka Horikawa (B2) | JPN | 3:11.95 | PB | +1.130 |
| 3 | Ayuri Fukuoka (A1) Moeka Yazaki (A1) Nao Miyasaka (A1) | JPN | 3:14.80 | SB | +3.980 |
| 4 | Hina Onodera (B2) Sawa Kitashima (A1) Sae Kimura (B2) | JPN | 3:19.78 | SB | +8.960 |
| 5 | Shuuka Suzuki (A1) Sakura Mito (B2) Yuika Ikeda (B2) | JPN | 3:19.92 | PB | +9.100 |
| 6 | Kokoro Morino (B2) Mai Ijiro (A1) Ayaka Shimizu (A1) | JPN | 3:22.75 | PB | +11.930 |
| 7 | Moka Sawano (B1) Riri Shimomura (B2) Aiko Takayama (A1) | JPN | 3:23.97 | SB | +13.150 |
| 8 | Shuna Akama (A1) Hana Fueki (B2) Naho Fujii (A1) | JPN | 3:24.82 | PB | +14.000 |
| 9 | Manami Ishikawa (A2) Mimi Uchida (A1) Shinka Fukasawa (A1) | JPN | 3:29.82 | PB | +19.000 |
| 10 | Ayane Yanagisawa (A2) Mihane Yajima (B2) Yuuna Ogiwara (B2) | JPN | 3:29.91 | PB | +19.090 |
| 11 | Sakura Watanabe (A1) Hinako Koma (A1) Nanaka Obara (A2) | JPN | 3:30.04 | | +19.220 |
| 12 | Kirari Mizuno (A1) Kanna Kinpara (A1) Yuna Shiokawa (A2) | JPN | 3:38.49 | SB | +27.670 |
| 13 | Nanaho Kouno (A2) Kyouka Shimizu (A1) Ai Hyuuga (A1) | JPN | 3:39.16 | PB | +28.340 |
| 14 | Miki Koyama (B2) Sakura Takizawa (B1) Mizuki.04 Hara (B2) | JPN | 3:45.93 | PB | +35.110 |
| 15 | Ayu Noake (B2) Hana Noake (B1) Sawa Mukai (B2) | JPN | 3:47.70 | PB | +36.880 |