Griquas outclassed the Griffons 59-26 in their Currie Cup promotion-relegation match in Kimberley on Friday.
Ederies Arendse scored three of the nine tries for Griquas as they booked their spot in the Currie Cup Premier Division once again next season.
The Griffons, meanwhile, will stay in first division rugby in 2018.
Griquas powered their way to a 26-14 lead at halftime, with Arendse notching up two of his tries in the first period.
The floodgates opened up after the interval, with De Wet Kruger and Arendse crossing the whitewash in a short space of time.
The Griffons, however, responded with Selvyn Davids also bagging three tries.
But some late touchdowns by Wendal Wehr, Tiaan Dorfling and Shaun McDonald sealed the result beyond doubt for Griquas.
Griquas 59 – Tries: Tertius Kruger, Ederies Arendse (3), AJ Coertzen, De Wet Kruger, Wendal Wehr, Tiaan Dorfling, Shaun McDonald. Conversions: George Whitehead (7).
Griffons 26 – Tries: Selvyn Davids (3), Penalty Try. Conversions: Jaun Kotzé (1), Duan Pretorius (1).
African News Agency (ANA)