▁club ▁would ▁be ▁named ▁Cas tres ▁Olymp ique ▁and ▁its ▁colours ▁would ▁be ▁changed ▁from ▁yellow ▁and ▁black ▁to ▁its ▁current ▁blue , ▁white ▁and ▁grey . ▁ ▁The ▁new ▁club ▁reached ▁the ▁top ▁flight ▁after ▁only ▁ 1 5 ▁years ▁of ▁existence ▁ ▁and ▁has ▁remained ▁there ▁ever ▁since , ▁bar ▁for ▁a ▁couple ▁of ▁years ▁during ▁the ▁ 8 0 s ▁when ▁the ▁club ▁was ▁in ▁the ▁then ▁Section ▁B ▁of ▁the ▁ 1 st ▁division . ▁The ▁club ▁has ▁never ▁left ▁the ▁ 1 st ▁division ▁since ▁ 1 9 2 1 . ▁ ▁For ▁a ▁while ▁Cas tres ▁Olymp ique ▁would ▁experience ▁mixed ▁fort unes ▁until ▁ 1 9 4 8 ▁when ▁they ▁reached ▁and ▁won ▁their ▁first ▁Coupe ▁de ▁France . ▁The ▁pr estig ious ▁championship ▁would ▁follow ▁a ▁year ▁later , ▁and ▁again ▁in ▁ 1 9 5 0 . ▁ ▁From ▁the ▁ 1 9 6 0 s ▁the ▁club ▁would ▁experience ▁a ▁stream ▁of ▁medi oc re ▁seasons ▁and ▁steady ▁decl ine ▁until ▁Pierre ▁Fab re , ▁the ▁founder ▁of ▁a ▁local ▁ph arma ce ut ical ▁company , ▁decided ▁to ▁take ▁over ▁the ▁club ▁and ▁restore ▁it ▁to ▁its ▁former ▁relative ▁glory ▁in ▁ 1 9 8 8 . ▁ ▁The ▁ 1 9 9 2 – 9 3 ▁French ▁Rugby ▁Union ▁Championship ▁was ▁won ▁by ▁Cas tres ▁who ▁beat ▁Gren o ble ▁ 1 4 – 1 1 ▁in ▁the ▁final , ▁but ▁a ▁try ▁of ▁Oliv ier ▁Br ou zet ▁is ▁denied