- ↑ The playoffs and direct exchange between J2 and J3 are subject to eligibility of J2-licensed teams in top 2 of 2015 J3 League.
J2 League match details[1]
| Match | Date | Team | Score | Team | Venue | Attendance |
|---|
| 1 | 2015.03.08 | Kamatamare Sanuki | 2-0 | Oita Trinita | Kagawa Marugame Stadium | 4,198 |
| 2 | 2015.03.15 | Oita Trinita | 0-1 | Fagiano Okayama | Oita Bank Dome | 8,310 |
| 3 | 2015.03.21 | Thespakusatsu Gunma | 1-1 | Oita Trinita | Shoda Shoyu Stadium Gunma | 4,135 |
| 4 | 2015.03.29 | Júbilo Iwata | 2-1 | Oita Trinita | Yamaha Stadium | 7,748 |
| 5 | 2015.04.01 | Oita Trinita | 6-2 | FC Gifu | Oita Bank Dome | 5,122 |
| 6 | 2015.04.05 | Ehime FC | 2-0 | Oita Trinita | Ningineer Stadium | 2,211 |
| 7 | 2015.04.11 | Oita Trinita | 1-2 | Avispa Fukuoka | Oita Bank Dome | 7,332 |
| 8 | 2015.04.19 | Oita Trinita | 0-3 | Omiya Ardija | Oita Bank Dome | 6,307 |
| 9 | 2015.04.26 | V-Varen Nagasaki | 0-1 | Oita Trinita | Nagasaki Stadium | 5,560 |
| 10 | 2015.04.29 | Oita Trinita | 0-1 | Tochigi SC | Oita Bank Dome | 6,543 |
| 11 | 2015.05.03 | Oita Trinita | 1-1 | Tokushima Vortis | Oita Bank Dome | 6,615 |
| 12 | 2015.05.06 | Roasso Kumamoto | 0-0 | Oita Trinita | Umakana-Yokana Stadium | 12,770 |
| 13 | 2015.05.09 | Oita Trinita | 1-1 | Yokohama FC | Oita Bank Dome | 7,246 |
| 14 | 2015.05.17 | Mito HollyHock | 1-1 | Oita Trinita | K's denki Stadium Mito | 4,553 |
| 15 | 2015.05.24 | Oita Trinita | 0-1 | Tokyo Verdy | Oita Bank Dome | 6,548 |
| 16 | 2015.05.31 | Giravanz Kitakyushu | 2-1 | Oita Trinita | Honjo Stadium | 4,309 |
| 17 | 2015.06.06 | Oita Trinita | 2-2 | Kyoto Sanga FC | Oita Bank Dome | 5,355 |
| 18 | 2015.06.14 | Zweigen Kanazawa | 1-1 | Oita Trinita | Ishikawa Athletics Stadium | 6,247 |
| 19 | 2015.06.21 | Oita Trinita | 0-1 | JEF United Chiba | Oita Bank Dome | 6,031 |
| 20 | 2015.06.29 | Consadole Sapporo | 1-1 | Oita Trinita | Sapporo Dome | 8,974 |
| 21 | 2015.07.04 | Cerezo Osaka | 0-0 | Oita Trinita | Kincho Stadium | 8,946 |
| 22 | 2015.07.08 | Oita Trinita | 1-1 | Mito HollyHock | Oita Bank Dome | 4,103 |
| 23 | 2015.07.12 | Tokyo Verdy | 1-2 | Oita Trinita | Ajinomoto Stadium | 4,592 |
| 24 | 2015.07.18 | Oita Trinita | 2-1 | V-Varen Nagasaki | Oita Bank Dome | 7,866 |
| 25 | 2015.07.22 | Tokushima Vortis | 1-0 | Oita Trinita | Pocarisweat Stadium | 3,509 |
| 26 | 2015.07.26 | Oita Trinita | 2-0 | Thespakusatsu Gunma | Oita Bank Dome | 15,152 |
| 27 | 2015.08.01 | Avispa Fukuoka | 1-1 | Oita Trinita | Level5 Stadium | 6,559 |
| 28 | 2015.08.08 | Oita Trinita | 0-1 | Ehime FC | Oita Bank Dome | 7,086 |
| 29 | 2015.08.15 | Kyoto Sanga FC | 2-1 | Oita Trinita | Kyoto Nishikyogoku Athletic Stadium | 6,166 |
| 30 | 2015.08.23 | Oita Trinita | 1-3 | Cerezo Osaka | Oita Bank Dome | 10,229 |
| 31 | 2015.09.13 | Oita Trinita | 0-1 | Roasso Kumamoto | Oita Bank Dome | 6,890 |
| 32 | 2015.09.20 | FC Gifu | 0-3 | Oita Trinita | Gifu Nagaragawa Stadium | 8,814 |
| 33 | 2015.09.23 | Oita Trinita | 2-1 | Giravanz Kitakyushu | Oita Bank Dome | 7,463 |
| 34 | 2015.09.27 | Fagiano Okayama | 1-0 | Oita Trinita | City Light Stadium | 7,055 |
| 35 | 2015.10.04 | Oita Trinita | 0-0 | Kamatamare Sanuki | Oita Bank Dome | 7,117 |
| 36 | 2015.10.10 | Tochigi SC | 1-1 | Oita Trinita | Tochigi Green Stadium | 6,717 |
| 37 | 2015.10.18 | JEF United Chiba | 2-2 | Oita Trinita | Fukuda Denshi Arena | 10,658 |
| 38 | 2015.10.25 | Oita Trinita | 2-0 | Consadole Sapporo | Oita Bank Dome | 9,062 |
| 39 | 2015.11.01 | Oita Trinita | 0-1 | Zweigen Kanazawa | Oita Bank Dome | 7,309 |
| 40 | 2015.11.08 | Yokohama FC | 1-0 | Oita Trinita | NHK Spring Mitsuzawa Football Stadium | 3,518 |
| 41 | 2015.11.14 | Omiya Ardija | 3-2 | Oita Trinita | NACK5 Stadium Omiya | 10,595 |
| 42 | 2015.11.23 | Oita Trinita | 1-2 | Júbilo Iwata | Oita Bank Dome | 10,508 |
