RINGs Openweight Title
| 1998/01/21 | Kiyoshi Tamura | Tokyo, Japan |
| Beat Mikhail Ilioukhine in tournament final to become first champ | ||
| 1998/05/29 | Bitsadze Tariel | Sapporo, Japan |
| 1999/05/22 | Kiyoshi Tamura [2] | Tokyo, Japan |
| 2000/04/20 | Gilbert Yvel | Tokyo, Japan |
| 2000/05 | VACANT | |
| Yvel signs with Pride | ||
| 2001/08/11 | Fedor Emelianenko | Tokyo, Japan |
| Beat Bobby Hoffman in tournament final | ||
| 2002/02/15 | PROMOTION CLOSES | |
 Return to top of page | ||
RINGs Light Heavyweight Title (Less than 95 Kg)
| 1997/08/13 | Masayuke Naruse | Kagoshima, Japan |
| Beat Christopher Haseman in tournament final to become first champ | ||
| TITLE DISSOLVED | ||
| Return to top of page | ||
RINGs Middleweight Title
| 2001/08/11 | Ricardo Arona | Tokyo, Japan |
| Beat Gustavo Ximu in tournament final to become first champ | ||
| 2002/02/15 | PROMOTION CLOSES | |
| Return to top of page | ||