RIZIN 14 live from the Saitama Super Arena in Saitama, Japan. The biggest event in the promotion’s history features 14 fights in the final MMA event of the year. In the night’s headliner, boxing great Floyd Mayweather Jr. competes in the country of Japan for the first time in a three-round boxing exhibition with Japanese prodigy Tenshin Nasukawa, who is undefeated as a professional combat-sports athlete. The co-headliner features two of the best bantamweights in the world. Bellator bantamweight champion Darrion Caldwell challenges Kyoji Horiguchi for the inaugural RIZIN bantamweight title.
| Actor | Role |
|---|---|
 Floyd Mayweather Jr.Not listed | Not listed |
 Tenshin NasukawaNot listed | Not listed |
 Kyoji HoriguchiNot listed | Not listed |
 Darrion CaldwellNot listed | Not listed |
 Ayaka HamasakiNot listed | Not listed |
| KKanna AsakuraNot listed | Not listed |
 Jiří ProcházkaNot listed | Not listed |
| BBrandon HalseyNot listed | Not listed |
| GGabi GarciaNot listed | Not listed |
| BBarbara NepomucenoNot listed | Not listed |
 Damien BrownNot listed | Not listed |
 Daron CruickshankNot listed | Not listed |
 Miyuu YamamotoNot listed | Not listed |
| MMika NaganoNot listed | Not listed |
| KKazuyuki MiyataNot listed | Not listed |
| EErson YamamotoNot listed | Not listed |
 Johnny CaseNot listed | Not listed |
| YYusuke YachiNot listed | Not listed |
| YYuki MotoyaNot listed | Not listed |
| JJustin ScogginsNot listed | Not listed |
 Yuta SasakiNot listed | Not listed |
 Manel KapeNot listed | Not listed |
| JJustyna HabaNot listed | Not listed |
| SShinju Nozawa-AuclairNot listed | Not listed |
 Tofiq MusayevNot listed | Not listed |
| NNobumitsu OsawaNot listed | Not listed |