Fighting Network RINGS

Vrij took part in RINGS's first main event, wrestling Maeda himself. He later became famous for his kickboxing strikes and intimidating physique, being nicknamed "Cyborg".

Vrij competed both in pro wrestling and shoot matches, having the first of them at the event RINGS Mega Battle IV, where he knocked out Mitsuya Nagai with a palm strike. He would defeat him in a rematch in RINGS Holland, knocking Nagai several times before winning by knee strike. They faced again in a rubber match in RINGS Maelstrom 6, but an improved Nagai capitalized on Vrij's lack of grappling skill and submitted him with a heel hook. Vrij would have another fight in Holland in 1997 against Pedro Palm, but the bout went to no contest due to Vrij landing an illegal kick while Palm was downed.

In February 1998, Vrij took on Ultimate Fighting Championship fighter Paul Varelans in a vale tudo rules match for his return to RINGS Holland. Dick fought in bad health and under heavy ephedrine medication for a foot injury gained in a wrestling match with Valentijn Overeem, but he did not back down from the event. The subsequent match was controversial, as although Dick dominated the first round with multiple unanswered combos, drawing abundant blood from Varelans's face and hitting ground and pound from the mount, the referee repeatedly pushed Vrij aside and restarted the bout instead of stopping it. At the second round, Vrij felt the effects of his health, and Varelans capitalized to land a right punch and knock him out, winning the match.

Vrij bounced back from the loss at the next Holland event, defeating another UFC alumnus in the form of Zane Frazier.